后台完成修复，初始化项目

src/main/java/com/org/flashsalesystem/FlashSaleSystemApplication.java

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+package com.org.flashsalesystem;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class FlashSaleSystemApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(FlashSaleSystemApplication.class, args);
+    }
+
+}

src/main/java/com/org/flashsalesystem/config/RedissonConfig.java

@@ -0,0 +1,295 @@
+package com.org.flashsalesystem.config;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import lombok.extern.slf4j.Slf4j;
+import org.redisson.Redisson;
+import org.redisson.api.RedissonClient;
+import org.redisson.codec.JsonJacksonCodec;
+import org.redisson.config.ClusterServersConfig;
+import org.redisson.config.Config;
+import org.redisson.config.SentinelServersConfig;
+import org.redisson.config.SingleServerConfig;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.script.DefaultRedisScript;
+import org.springframework.data.redis.listener.RedisMessageListenerContainer;
+import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+import org.springframework.scripting.support.ResourceScriptSource;
+
+/**
+ * Redisson配置类
+ * 配置Redisson客户端和相关组件
+ */
+@Configuration
+@Slf4j
+public class RedissonConfig {
+
+    @Value("${spring.redis.cluster.nodes:}")
+    private String[] clusterNodes;
+
+    @Value("${spring.redis.sentinel.nodes:}")
+    private String[] sentinelNodes;
+
+    @Value("${spring.redis.sentinel.master:}")
+    private String sentinelMaster;
+
+    @Value("${spring.redis.host:localhost}")
+    private String host;
+
+    @Value("${spring.redis.port:6379}")
+    private int port;
+
+    @Value("${spring.redis.password:}")
+    private String password;
+
+    @Value("${spring.redis.database:0}")
+    private int database;
+
+    @Value("${spring.redis.timeout:2000}")
+    private int timeout;
+
+    /**
+     * 配置Jackson ObjectMapper
+     */
+    private ObjectMapper createObjectMapper() {
+        ObjectMapper objectMapper = new ObjectMapper();
+        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
+        objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
+
+        // 注册JSR310模块以支持Java 8时间类型
+        objectMapper.registerModule(new JavaTimeModule());
+        objectMapper.disable(com.fasterxml.jackson.databind.SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+
+        return objectMapper;
+    }
+
+    /**
+     * Redisson客户端配置
+     */
+    @Bean
+    @Primary
+    public RedissonClient redissonClient() {
+        log.info("初始化Redisson客户端...");
+
+        Config config = new Config();
+
+        // 配置JSON编解码器
+        JsonJacksonCodec codec = new JsonJacksonCodec(createObjectMapper());
+        config.setCodec(codec);
+
+        // 根据配置选择连接模式
+        if (clusterNodes != null && clusterNodes.length > 0) {
+            // 集群模式
+            log.info("配置Redis集群模式");
+            ClusterServersConfig clusterConfig = config.useClusterServers();
+
+            for (String node : clusterNodes) {
+                clusterConfig.addNodeAddress("redis://" + node);
+                log.info("添加集群节点: {}", node);
+            }
+
+            if (password != null && !password.isEmpty()) {
+                clusterConfig.setPassword(password);
+            }
+
+            clusterConfig
+                    .setConnectTimeout(timeout)
+                    .setTimeout(timeout)
+                    .setRetryAttempts(3)
+                    .setRetryInterval(1500)
+                    .setMasterConnectionMinimumIdleSize(10)
+                    .setMasterConnectionPoolSize(64)
+                    .setSlaveConnectionMinimumIdleSize(10)
+                    .setSlaveConnectionPoolSize(64);
+
+        } else if (sentinelNodes != null && sentinelNodes.length > 0) {
+            // 哨兵模式
+            log.info("配置Redis哨兵模式");
+            SentinelServersConfig sentinelConfig = config.useSentinelServers();
+
+            sentinelConfig.setMasterName(sentinelMaster);
+            for (String node : sentinelNodes) {
+                sentinelConfig.addSentinelAddress("redis://" + node);
+                log.info("添加哨兵节点: {}", node);
+            }
+
+            if (password != null && !password.isEmpty()) {
+                sentinelConfig.setPassword(password);
+            }
+
+            sentinelConfig
+                    .setDatabase(database)
+                    .setConnectTimeout(timeout)
+                    .setTimeout(timeout)
+                    .setRetryAttempts(3)
+                    .setRetryInterval(1500)
+                    .setMasterConnectionMinimumIdleSize(10)
+                    .setMasterConnectionPoolSize(64)
+                    .setSlaveConnectionMinimumIdleSize(10)
+                    .setSlaveConnectionPoolSize(64);
+
+        } else {
+            // 单机模式
+            log.info("配置Redis单机模式: {}:{}", host, port);
+            SingleServerConfig singleConfig = config.useSingleServer();
+
+            singleConfig.setAddress("redis://" + host + ":" + port);
+
+            if (password != null && !password.isEmpty()) {
+                singleConfig.setPassword(password);
+            }
+
+            singleConfig
+                    .setDatabase(database)
+                    .setConnectTimeout(timeout)
+                    .setTimeout(timeout)
+                    .setRetryAttempts(3)
+                    .setRetryInterval(1500)
+                    .setConnectionMinimumIdleSize(10)
+                    .setConnectionPoolSize(64);
+        }
+
+        RedissonClient redissonClient = Redisson.create(config);
+        log.info("Redisson客户端初始化完成");
+
+        return redissonClient;
+    }
+
+    /**
+     * RedisTemplate配置（保持兼容性）
+     */
+    @Bean
+    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
+        log.info("配置RedisTemplate");
+
+        RedisTemplate<String, Object> template = new RedisTemplate<>();
+        template.setConnectionFactory(connectionFactory);
+
+        // JSON序列化配置
+        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(
+                Object.class);
+        jackson2JsonRedisSerializer.setObjectMapper(createObjectMapper());
+
+        // String序列化配置
+        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
+
+        // 设置序列化器
+        template.setKeySerializer(stringRedisSerializer);
+        template.setHashKeySerializer(stringRedisSerializer);
+        template.setValueSerializer(jackson2JsonRedisSerializer);
+        template.setHashValueSerializer(jackson2JsonRedisSerializer);
+
+        template.afterPropertiesSet();
+
+        log.info("RedisTemplate配置完成");
+        return template;
+    }
+
+    /**
+     * 自定义StringRedisTemplate配置（用于字符串操作）
+     */
+    @Bean("customStringRedisTemplate")
+    public RedisTemplate<String, String> customStringRedisTemplate(RedisConnectionFactory connectionFactory) {
+        log.info("配置自定义StringRedisTemplate");
+
+        RedisTemplate<String, String> template = new RedisTemplate<>();
+        template.setConnectionFactory(connectionFactory);
+
+        // String序列化配置
+        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
+
+        // 设置所有序列化器为String
+        template.setKeySerializer(stringRedisSerializer);
+        template.setHashKeySerializer(stringRedisSerializer);
+        template.setValueSerializer(stringRedisSerializer);
+        template.setHashValueSerializer(stringRedisSerializer);
+
+        template.afterPropertiesSet();
+
+        log.info("自定义StringRedisTemplate配置完成");
+        return template;
+    }
+
+    /**
+     * Redis消息监听容器
+     */
+    @Bean
+    public RedisMessageListenerContainer redisMessageListenerContainer(RedisConnectionFactory connectionFactory) {
+        log.info("配置Redis消息监听容器");
+
+        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
+        container.setConnectionFactory(connectionFactory);
+
+        return container;
+    }
+
+    /**
+     * 秒杀Lua脚本
+     */
+    @Bean
+    public DefaultRedisScript<Long> flashSaleScript() {
+        DefaultRedisScript<Long> script = new DefaultRedisScript<>();
+        script.setScriptSource(new ResourceScriptSource(new ClassPathResource("lua/flashsale.lua")));
+        script.setResultType(Long.class);
+        log.info("加载秒杀Lua脚本");
+        return script;
+    }
+
+    /**
+     * 分布式锁Lua脚本
+     */
+    @Bean
+    public DefaultRedisScript<String> lockScript() {
+        DefaultRedisScript<String> script = new DefaultRedisScript<>();
+        script.setScriptSource(new ResourceScriptSource(new ClassPathResource("lua/distributed_lock.lua")));
+        script.setResultType(String.class);
+        log.info("加载分布式锁Lua脚本");
+        return script;
+    }
+
+    /**
+     * 释放锁Lua脚本
+     */
+    @Bean
+    public DefaultRedisScript<Long> unlockScript() {
+        DefaultRedisScript<Long> script = new DefaultRedisScript<>();
+        script.setScriptSource(new ResourceScriptSource(new ClassPathResource("lua/unlock.lua")));
+        script.setResultType(Long.class);
+        log.info("加载释放锁Lua脚本");
+        return script;
+    }
+
+    /**
+     * 限流Lua脚本
+     */
+    @Bean
+    public DefaultRedisScript<Long> rateLimitScript() {
+        DefaultRedisScript<Long> script = new DefaultRedisScript<>();
+        script.setScriptSource(new ResourceScriptSource(new ClassPathResource("lua/rate_limit.lua")));
+        script.setResultType(Long.class);
+        log.info("加载限流Lua脚本");
+        return script;
+    }
+
+    /**
+     * 购物车操作Lua脚本
+     */
+    @Bean
+    public DefaultRedisScript<Long> cartOperationScript() {
+        DefaultRedisScript<Long> script = new DefaultRedisScript<>();
+        script.setScriptSource(new ResourceScriptSource(new ClassPathResource("lua/cart_operation.lua")));
+        script.setResultType(Long.class);
+        log.info("加载购物车操作Lua脚本");
+        return script;
+    }
+}

src/main/java/com/org/flashsalesystem/config/SwaggerConfig.java

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+package com.org.flashsalesystem.config;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.info.Contact;
+import io.swagger.v3.oas.models.info.Info;
+import io.swagger.v3.oas.models.info.License;
+import org.springdoc.core.GroupedOpenApi;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Swagger配置类
+ * 配置Knife4j接口文档
+ */
+@Configuration
+public class SwaggerConfig {
+
+    /**
+     * 创建OpenAPI基本信息
+     */
+    @Bean
+    public OpenAPI customOpenAPI() {
+        return new OpenAPI()
+                .info(new Info()
+                              .title("秒杀系统API文档")
+                              .description("FlashSaleSystem - 高并发秒杀系统接口文档")
+                              .version("1.0.0")
+                              .contact(new Contact()
+                                               .name("开发团队")
+                                               .email("dev@flashsale.com")
+                                               .url("https://github.com/flashsale"))
+                              .license(new License()
+                                               .name("MIT License")
+                                               .url("https://opensource.org/licenses/MIT")));
+    }
+
+    /**
+     * 用户管理API分组
+     */
+    @Bean
+    public GroupedOpenApi userApi() {
+        return GroupedOpenApi.builder()
+                             .group("用户管理")
+                             .pathsToMatch("/api/user/**")
+                             .build();
+    }
+
+    /**
+     * 商品管理API分组
+     */
+    @Bean
+    public GroupedOpenApi productApi() {
+        return GroupedOpenApi.builder()
+                             .group("商品管理")
+                             .pathsToMatch("/api/product/**")
+                             .build();
+    }
+
+    /**
+     * 秒杀管理API分组
+     */
+    @Bean
+    public GroupedOpenApi flashSaleApi() {
+        return GroupedOpenApi.builder()
+                             .group("秒杀管理")
+                             .pathsToMatch("/api/flashsale/**")
+                             .build();
+    }
+
+    /**
+     * 订单管理API分组
+     */
+    @Bean
+    public GroupedOpenApi orderApi() {
+        return GroupedOpenApi.builder()
+                             .group("订单管理")
+                             .pathsToMatch("/api/order/**")
+                             .build();
+    }
+
+    /**
+     * 购物车管理API分组
+     */
+    @Bean
+    public GroupedOpenApi cartApi() {
+        return GroupedOpenApi.builder()
+                             .group("购物车管理")
+                             .pathsToMatch("/api/cart/**")
+                             .build();
+    }
+
+    /**
+     * 系统管理API分组
+     */
+    @Bean
+    public GroupedOpenApi systemApi() {
+        return GroupedOpenApi.builder()
+                             .group("系统管理")
+                             .pathsToMatch("/test/**")
+                             .build();
+    }
+
+    /**
+     * 完整API分组
+     */
+    @Bean
+    public GroupedOpenApi allApi() {
+        return GroupedOpenApi.builder()
+                             .group("完整接口")
+                             .pathsToMatch("/**")
+                             .build();
+    }
+} 

src/main/java/com/org/flashsalesystem/config/WebConfig.java

@@ -0,0 +1,68 @@
+package com.org.flashsalesystem.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.ViewResolver;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import org.springframework.web.servlet.view.InternalResourceViewResolver;
+import org.springframework.web.servlet.view.JstlView;
+
+/**
+ * Web配置类
+ * 配置JSP视图解析器和静态资源
+ */
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+
+    /**
+     * JSP视图解析器
+     */
+    @Bean
+    public ViewResolver viewResolver() {
+        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
+        resolver.setPrefix("/WEB-INF/views/");
+        resolver.setSuffix(".jsp");
+        resolver.setViewClass(JstlView.class);
+        resolver.setOrder(1);
+        return resolver;
+    }
+
+    /**
+     * 静态资源处理
+     */
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        // 确保不覆盖默认的静态资源处理
+        registry.addResourceHandler("/static/**")
+                .addResourceLocations("classpath:/static/");
+
+        registry.addResourceHandler("/css/**")
+                .addResourceLocations("classpath:/static/css/");
+
+        registry.addResourceHandler("/js/**")
+                .addResourceLocations("classpath:/static/js/");
+
+        registry.addResourceHandler("/images/**")
+                .addResourceLocations("classpath:/static/images/");
+
+        registry.addResourceHandler("/webjars/**")
+                .addResourceLocations("classpath:/META-INF/resources/webjars/");
+
+        // 添加Knife4j相关的静态资源映射
+        registry.addResourceHandler("/doc.html**")
+                .addResourceLocations("classpath:/META-INF/resources/");
+
+        registry.addResourceHandler("/favicon.ico")
+                .addResourceLocations("classpath:/META-INF/resources/");
+    }
+
+    /**
+     * 默认视图控制器
+     */
+    @Override
+    public void addViewControllers(ViewControllerRegistry registry) {
+        registry.addViewController("/").setViewName("index");
+    }
+}

src/main/java/com/org/flashsalesystem/controller/AdminController.java

@@ -0,0 +1,452 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.service.AdminService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 管理后台API控制器
+ */
+@Tag(name = "管理后台API", description = "管理后台相关接口")
+@RestController
+@RequestMapping("/api/admin")
+@Slf4j
+public class AdminController {
+
+    @Autowired
+    private AdminService adminService;
+
+    /**
+     * 获取仪表盘统计数据
+     */
+    @Operation(summary = "获取仪表盘统计数据")
+    @GetMapping("/dashboard/stats")
+    public ResponseEntity<Map<String, Object>> getDashboardStats() {
+        try {
+            Map<String, Object> stats = adminService.getDashboardStats();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取统计数据成功");
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取仪表盘统计数据失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取统计数据失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取用户统计数据
+     */
+    @Operation(summary = "获取用户统计数据")
+    @GetMapping("/users/stats")
+    public ResponseEntity<Map<String, Object>> getUserStats() {
+        try {
+            Map<String, Object> stats = adminService.getUserStats();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取用户统计数据成功");
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取用户统计数据失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取用户统计数据失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取订单统计数据
+     */
+    @Operation(summary = "获取订单统计数据")
+    @GetMapping("/orders/stats")
+    public ResponseEntity<Map<String, Object>> getOrderStats() {
+        try {
+            Map<String, Object> stats = adminService.getOrderStats();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取订单统计数据成功");
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取订单统计数据失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取订单统计数据失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品统计数据
+     */
+    @Operation(summary = "获取商品统计数据")
+    @GetMapping("/products/stats")
+    public ResponseEntity<Map<String, Object>> getProductStats() {
+        try {
+            Map<String, Object> stats = adminService.getProductStats();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取商品统计数据成功");
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品统计数据失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取商品统计数据失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取秒杀统计数据
+     */
+    @Operation(summary = "获取秒杀统计数据")
+    @GetMapping("/flashsales/stats")
+    public ResponseEntity<Map<String, Object>> getFlashSaleStats() {
+        try {
+            Map<String, Object> stats = adminService.getFlashSaleStats();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取秒杀统计数据成功");
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取秒杀统计数据失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取秒杀统计数据失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取最近订单列表
+     */
+    @Operation(summary = "获取最近订单列表")
+    @GetMapping("/orders/recent")
+    public ResponseEntity<Map<String, Object>> getRecentOrders(@RequestParam(defaultValue = "10") int limit) {
+        try {
+            Object orders = adminService.getRecentOrders(limit);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取最近订单成功");
+            response.put("data", orders);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取最近订单失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取最近订单失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取热门商品列表
+     */
+    @Operation(summary = "获取热门商品列表")
+    @GetMapping("/products/hot")
+    public ResponseEntity<Map<String, Object>> getHotProducts(@RequestParam(defaultValue = "5") int limit) {
+        try {
+            Object products = adminService.getHotProducts(limit);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取热门商品成功");
+            response.put("data", products);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取热门商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取热门商品失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取用户列表
+     */
+    @Operation(summary = "获取用户列表")
+    @GetMapping("/users")
+    public ResponseEntity<Map<String, Object>> getUsers(
+            @RequestParam(defaultValue = "1") int page,
+            @RequestParam(defaultValue = "10") int size,
+            @RequestParam(required = false) String keyword,
+            @RequestParam(required = false) Integer status) {
+        try {
+            Object users = adminService.getUsers(page, size, keyword, status);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取用户列表成功");
+            response.put("data", users);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取用户列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取用户列表失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取订单列表
+     */
+    @Operation(summary = "获取订单列表")
+    @GetMapping("/orders")
+    public ResponseEntity<Map<String, Object>> getOrders(
+            @RequestParam(defaultValue = "1") int page,
+            @RequestParam(defaultValue = "10") int size,
+            @RequestParam(required = false) String keyword,
+            @RequestParam(required = false) String status) {
+        try {
+            Object orders = adminService.getOrders(page, size, keyword, status);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取订单列表成功");
+            response.put("data", orders);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取订单列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取订单列表失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品列表
+     */
+    @Operation(summary = "获取商品列表")
+    @GetMapping("/products")
+    public ResponseEntity<Map<String, Object>> getProducts(
+            @RequestParam(defaultValue = "1") int page,
+            @RequestParam(defaultValue = "10") int size,
+            @RequestParam(required = false) String keyword,
+            @RequestParam(required = false) Integer status) {
+        try {
+            Object products = adminService.getProducts(page, size, keyword, status);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取商品列表成功");
+            response.put("data", products);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取商品列表失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取系统状态
+     */
+    @Operation(summary = "获取系统状态")
+    @GetMapping("/monitor/system")
+    public ResponseEntity<Map<String, Object>> getSystemStatus() {
+        try {
+            Object systemStatus = adminService.getSystemStatus();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取系统状态成功");
+            response.put("data", systemStatus);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取系统状态失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取系统状态失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取Redis状态
+     */
+    @Operation(summary = "获取Redis状态")
+    @GetMapping("/monitor/redis")
+    public ResponseEntity<Map<String, Object>> getRedisStatus() {
+        try {
+            Object redisStatus = adminService.getRedisStatus();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取Redis状态成功");
+            response.put("data", redisStatus);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取Redis状态失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取Redis状态失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取单个商品详情
+     */
+    @Operation(summary = "获取商品详情")
+    @GetMapping("/products/{id}")
+    public ResponseEntity<Map<String, Object>> getProduct(@PathVariable Long id) {
+        try {
+            Object product = adminService.getProduct(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "获取商品详情成功");
+            response.put("data", product);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品详情失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "获取商品详情失败");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新商品
+     */
+    @Operation(summary = "更新商品")
+    @PutMapping("/products/{id}")
+    public ResponseEntity<Map<String, Object>> updateProduct(@PathVariable Long id,
+                                                             @RequestBody Map<String, Object> productData) {
+        try {
+            adminService.updateProduct(id, productData);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品更新成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "更新商品失败: " + e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 删除商品
+     */
+    @Operation(summary = "删除商品")
+    @DeleteMapping("/products/{id}")
+    public ResponseEntity<Map<String, Object>> deleteProduct(@PathVariable Long id) {
+        try {
+            adminService.deleteProduct(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品删除成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("删除商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "删除商品失败: " + e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 添加商品
+     */
+    @Operation(summary = "添加商品")
+    @PostMapping("/products")
+    public ResponseEntity<Map<String, Object>> addProduct(@RequestBody Map<String, Object> productData) {
+        try {
+            Object product = adminService.addProduct(productData);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品添加成功");
+            response.put("data", product);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("添加商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "添加商品失败: " + e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/controller/CartController.java

@@ -0,0 +1,342 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.dto.CartDTO;
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.service.CartService;
+import com.org.flashsalesystem.service.UserService;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 购物车控制器
+ * 处理购物车相关的HTTP请求
+ */
+@Tag(name = "购物车管理", description = "购物车商品添加、删除、清空等接口")
+@RestController
+@RequestMapping("/api/cart")
+@Slf4j
+public class CartController {
+
+    @Autowired
+    private CartService cartService;
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 添加商品到购物车
+     */
+    @PostMapping("/add")
+    public ResponseEntity<Map<String, Object>> addToCart(@Validated @RequestBody CartDTO.AddItemDTO addItemDTO,
+                                                         HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            CartDTO cart = cartService.addToCart(userId, addItemDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品添加到购物车成功");
+            response.put("data", cart);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("添加商品到购物车失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新购物车商品数量
+     */
+    @PutMapping("/update-quantity")
+    public ResponseEntity<Map<String, Object>> updateQuantity(@Validated @RequestBody CartDTO.UpdateQuantityDTO updateDTO,
+                                                              HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            CartDTO cart = cartService.updateQuantity(userId, updateDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "购物车商品数量更新成功");
+            response.put("data", cart);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新购物车商品数量失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 从购物车移除商品
+     */
+    @DeleteMapping("/remove")
+    public ResponseEntity<Map<String, Object>> removeFromCart(@Validated @RequestBody CartDTO.RemoveItemDTO removeDTO,
+                                                              HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            CartDTO cart = cartService.removeFromCart(userId, removeDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品从购物车移除成功");
+            response.put("data", cart);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("从购物车移除商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 批量操作购物车
+     */
+    @PostMapping("/batch-operation")
+    public ResponseEntity<Map<String, Object>> batchOperation(@Validated @RequestBody CartDTO.BatchOperationDTO batchDTO,
+                                                              HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            CartDTO cart;
+            String message;
+
+            if ("remove".equals(batchDTO.getOperation())) {
+                cart = cartService.batchRemove(userId, batchDTO.getProductIds());
+                message = "批量移除商品成功";
+            } else if ("clear".equals(batchDTO.getOperation())) {
+                cartService.clearCart(userId);
+                cart = cartService.getCart(userId);
+                message = "购物车清空成功";
+            } else {
+                throw new RuntimeException("不支持的操作类型");
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", message);
+            response.put("data", cart);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("批量操作购物车失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 清空购物车
+     */
+    @DeleteMapping("/clear")
+    public ResponseEntity<Map<String, Object>> clearCart(HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            cartService.clearCart(userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "购物车清空成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("清空购物车失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取购物车信息
+     */
+    @GetMapping
+    public ResponseEntity<Map<String, Object>> getCart(HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            CartDTO cart = cartService.getCart(userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", cart);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取购物车信息失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取购物车商品数量
+     */
+    @GetMapping("/count")
+    public ResponseEntity<Map<String, Object>> getCartItemCount(HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            int count = cartService.getCartItemCount(userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            Map<String, Object> data = new HashMap<>();
+            data.put("count", count);
+            response.put("data", data);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取购物车商品数量失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 检查购物车库存状态
+     */
+    @GetMapping("/check-stock")
+    public ResponseEntity<Map<String, Object>> checkCartStock(HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            Map<String, Object> stockCheck = cartService.checkCartStock(userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", stockCheck);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("检查购物车库存状态失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 刷新购物车过期时间
+     */
+    @PostMapping("/refresh")
+    public ResponseEntity<Map<String, Object>> refreshCart(HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            cartService.refreshCartExpireTime(userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "购物车过期时间刷新成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("刷新购物车过期时间失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取当前用户ID
+     */
+    private Long getCurrentUserId(HttpServletRequest request) {
+        HttpSession session = request.getSession(false);
+        if (session == null) {
+            return null;
+        }
+
+        String token = (String) session.getAttribute("token");
+        UserDTO user = userService.getUserByToken(token);
+
+        return user != null ? user.getId() : null;
+    }
+
+    /**
+     * 创建未授权响应
+     */
+    private ResponseEntity<Map<String, Object>> createUnauthorizedResponse() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("success", false);
+        response.put("message", "用户未登录或登录已过期");
+        return ResponseEntity.status(401).body(response);
+    }
+}

src/main/java/com/org/flashsalesystem/controller/FlashSaleController.java

@@ -0,0 +1,382 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.dto.FlashSaleDTO;
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.service.FlashSaleService;
+import com.org.flashsalesystem.service.UserService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 秒杀控制器
+ * 处理秒杀相关的HTTP请求
+ */
+@Tag(name = "秒杀管理", description = "秒杀活动创建、参与、状态管理等接口")
+@RestController
+@RequestMapping("/api/flashsale")
+@Slf4j
+public class FlashSaleController {
+
+    @Autowired
+    private FlashSaleService flashSaleService;
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 创建秒杀活动
+     */
+    @Operation(summary = "创建秒杀活动", description = "创建新的秒杀活动")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "秒杀活动创建成功"),
+            @ApiResponse(responseCode = "400", description = "创建失败，参数验证错误")
+    })
+    @PostMapping("/create")
+    public ResponseEntity<Map<String, Object>> createFlashSale(@Validated @RequestBody FlashSaleDTO.CreateDTO createDTO) {
+        try {
+            FlashSaleDTO flashSale = flashSaleService.createFlashSale(createDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "秒杀活动创建成功");
+            response.put("data", flashSale);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("创建秒杀活动失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 参与秒杀
+     */
+    @PostMapping("/participate")
+    public ResponseEntity<Map<String, Object>> participateFlashSale(@Validated @RequestBody FlashSaleDTO.ParticipateDTO participateDTO,
+                                                                    HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            FlashSaleDTO.ResultDTO result = flashSaleService.participateFlashSale(userId, participateDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", result.getSuccess());
+            response.put("message", result.getMessage());
+            response.put("data", result);
+
+            if (result.getSuccess()) {
+                return ResponseEntity.ok(response);
+            } else {
+                return ResponseEntity.badRequest().body(response);
+            }
+        } catch (Exception e) {
+            log.error("参与秒杀失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", "系统异常，请稍后重试");
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取秒杀活动列表
+     */
+    @PostMapping("/list")
+    public ResponseEntity<Map<String, Object>> getFlashSaleList(@RequestBody FlashSaleDTO.QueryDTO queryDTO) {
+        try {
+            Map<String, Object> result = flashSaleService.getFlashSaleList(queryDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", result);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取秒杀活动列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取正在进行的秒杀活动
+     */
+    @GetMapping("/active")
+    public ResponseEntity<Map<String, Object>> getActiveFlashSales() {
+        try {
+            List<FlashSaleDTO> activeFlashSales = flashSaleService.getActiveFlashSales();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", activeFlashSales);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取正在进行的秒杀活动失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取秒杀活动详情
+     */
+    @Operation(summary = "获取秒杀活动详情", description = "根据ID获取秒杀活动的详细信息")
+    @GetMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> getFlashSale(@Parameter(description = "秒杀活动ID", required = true) @PathVariable Long id) {
+        try {
+            FlashSaleDTO flashSale = flashSaleService.getFlashSaleDTOById(id);
+
+            if (flashSale == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "秒杀活动不存在");
+                return ResponseEntity.notFound().build();
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", flashSale);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取秒杀活动详情失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新秒杀活动
+     */
+    @Operation(summary = "更新秒杀活动", description = "更新秒杀活动信息")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "秒杀活动更新成功"),
+            @ApiResponse(responseCode = "400", description = "更新失败，参数验证错误"),
+            @ApiResponse(responseCode = "404", description = "秒杀活动不存在")
+    })
+    @PutMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> updateFlashSale(@Parameter(description = "秒杀活动ID", required = true) @PathVariable Long id,
+                                                               @Validated @RequestBody FlashSaleDTO.UpdateDTO updateDTO) {
+        try {
+            FlashSaleDTO flashSale = flashSaleService.updateFlashSale(id, updateDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "秒杀活动更新成功");
+            response.put("data", flashSale);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新秒杀活动失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 删除秒杀活动
+     */
+    @Operation(summary = "删除秒杀活动", description = "删除指定的秒杀活动")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "秒杀活动删除成功"),
+            @ApiResponse(responseCode = "400", description = "删除失败"),
+            @ApiResponse(responseCode = "404", description = "秒杀活动不存在")
+    })
+    @DeleteMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> deleteFlashSale(@Parameter(description = "秒杀活动ID", required = true) @PathVariable Long id) {
+        try {
+            boolean success = flashSaleService.deleteFlashSale(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", success);
+            response.put("message", success ? "秒杀活动删除成功" : "秒杀活动删除失败");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("删除秒杀活动失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取秒杀活动剩余库存
+     */
+    @GetMapping("/{id}/stock")
+    public ResponseEntity<Map<String, Object>> getFlashSaleStock(@PathVariable Long id) {
+        try {
+            Integer stock = flashSaleService.getFlashSaleStock(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            Map<String, Object> data = new HashMap<>();
+            data.put("flashSaleId", id);
+            data.put("remainingStock", stock);
+            response.put("data", data);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取秒杀活动库存失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 预热秒杀活动
+     */
+    @PostMapping("/{id}/preload")
+    public ResponseEntity<Map<String, Object>> preloadFlashSale(@PathVariable Long id) {
+        try {
+            flashSaleService.preloadFlashSale(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "秒杀活动预热成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("预热秒杀活动失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新秒杀活动状态（定时任务调用）
+     */
+    @PostMapping("/update-status")
+    public ResponseEntity<Map<String, Object>> updateFlashSaleStatus() {
+        try {
+            flashSaleService.updateFlashSaleStatus();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "秒杀活动状态更新成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新秒杀活动状态失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 秒杀压力测试接口
+     */
+    @PostMapping("/stress-test")
+    public ResponseEntity<Map<String, Object>> stressTest(@RequestParam Long flashSaleId,
+                                                          @RequestParam(defaultValue = "100") int concurrency,
+                                                          HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            // 这里可以实现压力测试逻辑
+            // 模拟多个用户同时参与秒杀
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "压力测试启动成功");
+            Map<String, Object> data = new HashMap<>();
+            data.put("flashSaleId", flashSaleId);
+            data.put("concurrency", concurrency);
+            response.put("data", data);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("秒杀压力测试失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取当前用户ID
+     */
+    private Long getCurrentUserId(HttpServletRequest request) {
+        HttpSession session = request.getSession(false);
+        if (session == null) {
+            return null;
+        }
+
+        String token = (String) session.getAttribute("token");
+        UserDTO user = userService.getUserByToken(token);
+
+        return user != null ? user.getId() : null;
+    }
+
+    /**
+     * 创建未授权响应
+     */
+    private ResponseEntity<Map<String, Object>> createUnauthorizedResponse() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("success", false);
+        response.put("message", "用户未登录或登录已过期");
+        return ResponseEntity.status(401).body(response);
+    }
+}

src/main/java/com/org/flashsalesystem/controller/OrderController.java

@@ -0,0 +1,360 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.dto.OrderDTO;
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.service.OrderService;
+import com.org.flashsalesystem.service.UserService;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 订单控制器
+ * 处理订单相关的HTTP请求
+ */
+@Tag(name = "订单管理", description = "订单创建、查询、状态管理等接口")
+@RestController
+@RequestMapping("/api/order")
+@Slf4j
+public class OrderController {
+
+    @Autowired
+    private OrderService orderService;
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 创建订单
+     */
+    @PostMapping("/create")
+    public ResponseEntity<Map<String, Object>> createOrder(@Validated @RequestBody OrderDTO.CreateDTO createDTO,
+                                                           HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            OrderDTO order = orderService.createOrder(userId, createDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "订单创建成功");
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("创建订单失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取订单详情
+     */
+    @GetMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> getOrder(@PathVariable Long id, HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            OrderDTO order = orderService.getOrderById(id);
+
+            if (order == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "订单不存在");
+                return ResponseEntity.notFound().build();
+            }
+
+            // 验证用户权限（普通用户只能查看自己的订单）
+            if (!order.getUserId().equals(userId)) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "无权限查看此订单");
+                return ResponseEntity.status(403).body(response);
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取订单详情失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取用户订单列表
+     */
+    @PostMapping("/my-orders")
+    public ResponseEntity<Map<String, Object>> getMyOrders(@RequestBody OrderDTO.QueryDTO queryDTO,
+                                                           HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            queryDTO.setUserId(userId); // 确保只查询当前用户的订单
+            Map<String, Object> result = orderService.getUserOrders(userId, queryDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", result);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取用户订单列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取所有订单列表（管理员）
+     */
+    @PostMapping("/all")
+    public ResponseEntity<Map<String, Object>> getAllOrders(@RequestBody OrderDTO.QueryDTO queryDTO) {
+        try {
+            Map<String, Object> result = orderService.getAllOrders(queryDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", result);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取所有订单列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新订单状态
+     */
+    @PutMapping("/status")
+    public ResponseEntity<Map<String, Object>> updateOrderStatus(@Validated @RequestBody OrderDTO.StatusUpdateDTO statusUpdateDTO) {
+        try {
+            OrderDTO order = orderService.updateOrderStatus(
+                    statusUpdateDTO.getOrderId(),
+                    statusUpdateDTO.getStatus(),
+                    statusUpdateDTO.getRemark()
+                                                           );
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "订单状态更新成功");
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新订单状态失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 取消订单
+     */
+    @PostMapping("/{id}/cancel")
+    public ResponseEntity<Map<String, Object>> cancelOrder(@PathVariable Long id, HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            OrderDTO order = orderService.cancelOrder(id, userId);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "订单取消成功");
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("取消订单失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 批量操作订单
+     */
+    @PostMapping("/batch-operation")
+    public ResponseEntity<Map<String, Object>> batchOperateOrders(@Validated @RequestBody OrderDTO.BatchOperationDTO batchDTO) {
+        try {
+            List<OrderDTO> results = orderService.batchOperateOrders(batchDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "批量操作完成");
+            response.put("data", results);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("批量操作订单失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取订单统计信息
+     */
+    @GetMapping("/statistics")
+    public ResponseEntity<Map<String, Object>> getOrderStatistics() {
+        try {
+            OrderDTO.StatisticsDTO statistics = orderService.getOrderStatistics();
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", statistics);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取订单统计信息失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 支付订单（模拟）
+     */
+    @PostMapping("/{id}/pay")
+    public ResponseEntity<Map<String, Object>> payOrder(@PathVariable Long id, HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            // 这里可以集成真实的支付接口
+            // 目前只是简单地更新订单状态为已支付
+            OrderDTO order = orderService.updateOrderStatus(id, 2, "用户支付");
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "支付成功");
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("支付订单失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 确认收货
+     */
+    @PostMapping("/{id}/confirm")
+    public ResponseEntity<Map<String, Object>> confirmOrder(@PathVariable Long id, HttpServletRequest request) {
+        try {
+            Long userId = getCurrentUserId(request);
+            if (userId == null) {
+                return createUnauthorizedResponse();
+            }
+
+            OrderDTO order = orderService.updateOrderStatus(id, 4, "用户确认收货");
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "确认收货成功");
+            response.put("data", order);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("确认收货失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取当前用户ID
+     */
+    private Long getCurrentUserId(HttpServletRequest request) {
+        HttpSession session = request.getSession(false);
+        if (session == null) {
+            return null;
+        }
+
+        String token = (String) session.getAttribute("token");
+        UserDTO user = userService.getUserByToken(token);
+
+        return user != null ? user.getId() : null;
+    }
+
+    /**
+     * 创建未授权响应
+     */
+    private ResponseEntity<Map<String, Object>> createUnauthorizedResponse() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("success", false);
+        response.put("message", "用户未登录或登录已过期");
+        return ResponseEntity.status(401).body(response);
+    }
+}

src/main/java/com/org/flashsalesystem/controller/PageController.java

@@ -0,0 +1,276 @@
+package com.org.flashsalesystem.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+/**
+ * 页面控制器
+ * 处理JSP页面的路由和渲染
+ */
+@Controller
+@Slf4j
+public class PageController {
+
+    /**
+     * 首页
+     */
+    @GetMapping("/")
+    public String index(Model model) {
+        model.addAttribute("pageTitle", "首页");
+        return "index";
+    }
+
+    /**
+     * 登录页面
+     */
+    @GetMapping("/login")
+    public String login(Model model, HttpServletRequest request,
+                        @RequestParam(required = false) String returnUrl) {
+        // 如果用户已登录，重定向到首页
+        HttpSession session = request.getSession(false);
+        if (session != null && session.getAttribute("user") != null) {
+            return "redirect:/";
+        }
+
+        model.addAttribute("pageTitle", "用户登录");
+        if (returnUrl != null) {
+            model.addAttribute("returnUrl", returnUrl);
+        }
+        return "login";
+    }
+
+    /**
+     * 注册页面
+     */
+    @GetMapping("/register")
+    public String register(Model model, HttpServletRequest request) {
+        // 如果用户已登录，重定向到首页
+        HttpSession session = request.getSession(false);
+        if (session != null && session.getAttribute("user") != null) {
+            return "redirect:/";
+        }
+
+        model.addAttribute("pageTitle", "用户注册");
+        return "register";
+    }
+
+    /**
+     * 商品列表页面
+     */
+    @GetMapping("/products")
+    public String products(Model model) {
+        model.addAttribute("pageTitle", "商品列表");
+        return "products";
+    }
+
+    /**
+     * 商品详情页面
+     */
+    @GetMapping("/product/{id}")
+    public String productDetail(@PathVariable Long id, Model model) {
+        model.addAttribute("pageTitle", "商品详情");
+        model.addAttribute("productId", id);
+        return "product-detail";
+    }
+
+    /**
+     * 秒杀活动列表页面
+     */
+    @GetMapping("/flashsales")
+    public String flashSales(Model model) {
+        model.addAttribute("pageTitle", "秒杀活动");
+        return "flashsales";
+    }
+
+    /**
+     * 秒杀活动详情页面
+     */
+    @GetMapping("/flashsale/{id}")
+    public String flashSaleDetail(@PathVariable Long id, Model model) {
+        model.addAttribute("pageTitle", "秒杀详情");
+        model.addAttribute("flashSaleId", id);
+        return "flashsale-detail";
+    }
+
+    /**
+     * 购物车页面
+     */
+    @GetMapping("/cart")
+    public String cart(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/cart";
+        }
+
+        model.addAttribute("pageTitle", "购物车");
+        return "cart";
+    }
+
+    /**
+     * 订单列表页面
+     */
+    @GetMapping("/orders")
+    public String orders(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/orders";
+        }
+
+        model.addAttribute("pageTitle", "我的订单");
+        return "orders";
+    }
+
+    /**
+     * 订单详情页面
+     */
+    @GetMapping("/order/{id}")
+    public String orderDetail(@PathVariable Long id, Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/order/" + id;
+        }
+
+        model.addAttribute("pageTitle", "订单详情");
+        model.addAttribute("orderId", id);
+        return "order-detail";
+    }
+
+    /**
+     * 个人设置页面
+     */
+    @GetMapping("/profile")
+    public String profile(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/profile";
+        }
+
+        model.addAttribute("pageTitle", "个人设置");
+        return "profile";
+    }
+
+    /**
+     * 管理后台首页
+     */
+    @GetMapping("/admin")
+    public String admin(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin";
+        }
+
+        model.addAttribute("pageTitle", "管理后台");
+        return "admin/index";
+    }
+
+    /**
+     * 商品管理页面
+     */
+    @GetMapping("/admin/products")
+    public String adminProducts(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin/products";
+        }
+
+        model.addAttribute("pageTitle", "商品管理");
+        return "admin/products";
+    }
+
+    /**
+     * 秒杀活动管理页面
+     */
+    @GetMapping("/admin/flashsales")
+    public String adminFlashSales(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin/flashsales";
+        }
+
+        model.addAttribute("pageTitle", "秒杀管理");
+        return "admin/flashsales";
+    }
+
+    /**
+     * 订单管理页面
+     */
+    @GetMapping("/admin/orders")
+    public String adminOrders(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin/orders";
+        }
+
+        model.addAttribute("pageTitle", "订单管理");
+        return "admin/orders";
+    }
+
+    /**
+     * 用户管理页面
+     */
+    @GetMapping("/admin/users")
+    public String adminUsers(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin/users";
+        }
+
+        model.addAttribute("pageTitle", "用户管理");
+        return "admin/users";
+    }
+
+    /**
+     * 系统监控页面
+     */
+    @GetMapping("/admin/monitor")
+    public String adminMonitor(Model model, HttpServletRequest request) {
+        if (!isUserLoggedIn(request)) {
+            return "redirect:/login?returnUrl=/admin/monitor";
+        }
+
+        model.addAttribute("pageTitle", "系统监控");
+        return "admin/monitor";
+    }
+
+    /**
+     * 帮助页面
+     */
+    @GetMapping("/help")
+    public String help(Model model) {
+        model.addAttribute("pageTitle", "帮助中心");
+        return "help";
+    }
+
+    /**
+     * 关于页面
+     */
+    @GetMapping("/about")
+    public String about(Model model) {
+        model.addAttribute("pageTitle", "关于我们");
+        return "about";
+    }
+
+    /**
+     * 404错误页面
+     */
+    @GetMapping("/404")
+    public String notFound(Model model) {
+        model.addAttribute("pageTitle", "页面未找到");
+        return "error/404";
+    }
+
+    /**
+     * 500错误页面
+     */
+    @GetMapping("/500")
+    public String serverError(Model model) {
+        model.addAttribute("pageTitle", "服务器错误");
+        return "error/500";
+    }
+
+    /**
+     * 检查用户是否已登录
+     */
+    private boolean isUserLoggedIn(HttpServletRequest request) {
+        HttpSession session = request.getSession(false);
+        return session != null && session.getAttribute("user") != null;
+    }
+}

src/main/java/com/org/flashsalesystem/controller/ProductController.java

@@ -0,0 +1,323 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.dto.ProductDTO;
+import com.org.flashsalesystem.service.ProductService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 商品控制器
+ * 处理商品相关的HTTP请求
+ */
+@Tag(name = "商品管理", description = "商品CRUD、库存管理、销量统计等接口")
+@RestController
+@RequestMapping("/api/product")
+@Slf4j
+public class ProductController {
+
+    @Autowired
+    private ProductService productService;
+
+    /**
+     * 创建商品
+     */
+    @Operation(summary = "创建商品", description = "新增商品信息")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "商品创建成功"),
+            @ApiResponse(responseCode = "400", description = "创建失败，参数验证错误")
+    })
+    @PostMapping("/create")
+    public ResponseEntity<Map<String, Object>> createProduct(@Validated @RequestBody ProductDTO.CreateDTO createDTO) {
+        try {
+            ProductDTO product = productService.createProduct(createDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品创建成功");
+            response.put("data", product);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("创建商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品详情
+     */
+    @Operation(summary = "获取商品详情", description = "根据商品ID获取商品详细信息")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "获取成功"),
+            @ApiResponse(responseCode = "404", description = "商品不存在")
+    })
+    @GetMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> getProduct(@Parameter(description = "商品ID", required = true) @PathVariable Long id) {
+        try {
+            ProductDTO product = productService.getProductById(id);
+
+            if (product == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "商品不存在");
+                return ResponseEntity.notFound().build();
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", product);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品详情失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品列表
+     */
+    @PostMapping("/list")
+    public ResponseEntity<Map<String, Object>> getProductList(@RequestBody ProductDTO.QueryDTO queryDTO) {
+        try {
+            Map<String, Object> result = productService.getProductList(queryDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", result);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品列表失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取热门商品
+     */
+    @GetMapping("/hot")
+    public ResponseEntity<Map<String, Object>> getHotProducts(@RequestParam(defaultValue = "10") int limit) {
+        try {
+            List<ProductDTO> hotProducts = productService.getHotProducts(limit);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", hotProducts);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取热门商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新商品信息
+     */
+    @PutMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> updateProduct(@PathVariable Long id,
+                                                             @Validated @RequestBody ProductDTO.UpdateDTO updateDTO) {
+        try {
+            ProductDTO product = productService.updateProduct(id, updateDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "商品更新成功");
+            response.put("data", product);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 删除商品
+     */
+    @DeleteMapping("/{id}")
+    public ResponseEntity<Map<String, Object>> deleteProduct(@PathVariable Long id) {
+        try {
+            boolean success = productService.deleteProduct(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", success);
+            response.put("message", success ? "商品删除成功" : "商品删除失败");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("删除商品失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新商品库存
+     */
+    @PostMapping("/stock/update")
+    public ResponseEntity<Map<String, Object>> updateStock(@Validated @RequestBody ProductDTO.StockUpdateDTO stockUpdateDTO) {
+        try {
+            boolean success = productService.updateStock(
+                    stockUpdateDTO.getProductId(),
+                    stockUpdateDTO.getQuantity(),
+                    stockUpdateDTO.getOperation()
+                                                        );
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", success);
+            response.put("message", success ? "库存更新成功" : "库存更新失败");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新商品库存失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品库存
+     */
+    @GetMapping("/{id}/stock")
+    public ResponseEntity<Map<String, Object>> getProductStock(@PathVariable Long id) {
+        try {
+            Integer stock = productService.getProductStock(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            Map<String, Object> data = new HashMap<>();
+            data.put("productId", id);
+            data.put("stock", stock);
+            response.put("data", data);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品库存失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 预热商品库存
+     */
+    @PostMapping("/{id}/stock/preload")
+    public ResponseEntity<Map<String, Object>> preloadStock(@PathVariable Long id) {
+        try {
+            productService.preloadProductStock(id);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "库存预热成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("预热商品库存失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 批量预热商品库存
+     */
+    @PostMapping("/stock/batch-preload")
+    public ResponseEntity<Map<String, Object>> batchPreloadStock(@RequestBody List<Long> productIds) {
+        try {
+            productService.batchPreloadProductStock(productIds);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "批量库存预热成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("批量预热商品库存失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取商品销量排行榜
+     */
+    @GetMapping("/sales-rank")
+    public ResponseEntity<Map<String, Object>> getSalesRank(@RequestParam(defaultValue = "10") int limit) {
+        try {
+            List<Map<String, Object>> salesRank = productService.getSalesRank(limit);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", salesRank);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取商品销量排行榜失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/controller/TestController.java

@@ -0,0 +1,40 @@
+package com.org.flashsalesystem.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 测试控制器
+ * 用于验证应用程序是否正常启动
+ */
+@Tag(name = "系统测试", description = "系统健康检查和测试接口")
+@RestController
+@RequestMapping("/test")
+public class TestController {
+
+    @Operation(summary = "系统问候", description = "测试系统是否正常运行")
+    @GetMapping("/hello")
+    public Map<String, Object> hello() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("message", "Hello! 秒杀系统运行正常");
+        response.put("status", "success");
+        response.put("timestamp", System.currentTimeMillis());
+        return response;
+    }
+
+    @Operation(summary = "健康检查", description = "检查系统健康状态")
+    @GetMapping("/health")
+    public Map<String, Object> health() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("status", "UP");
+        response.put("application", "FlashSaleSystem");
+        response.put("version", "1.0.0");
+        return response;
+    }
+}

src/main/java/com/org/flashsalesystem/controller/UserController.java

@@ -0,0 +1,250 @@
+package com.org.flashsalesystem.controller;
+
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.service.UserService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 用户控制器
+ * 处理用户相关的HTTP请求
+ */
+@Tag(name = "用户管理", description = "用户注册、登录、个人信息管理等接口")
+@RestController
+@RequestMapping("/api/user")
+@Slf4j
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 用户注册
+     */
+    @Operation(summary = "用户注册", description = "新用户注册接口")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "注册成功"),
+            @ApiResponse(responseCode = "400", description = "注册失败，参数验证错误或用户名已存在")
+    })
+    @PostMapping("/register")
+    public ResponseEntity<Map<String, Object>> register(@Validated @RequestBody UserDTO.RegisterDTO registerDTO) {
+        try {
+            UserDTO user = userService.register(registerDTO);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "注册成功");
+            response.put("data", user);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("用户注册失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 用户登录
+     */
+    @Operation(summary = "用户登录", description = "用户登录验证接口，成功后返回token并设置session")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "登录成功"),
+            @ApiResponse(responseCode = "400", description = "登录失败，用户名或密码错误")
+    })
+    @PostMapping("/login")
+    public ResponseEntity<Map<String, Object>> login(@Validated @RequestBody UserDTO.LoginDTO loginDTO,
+                                                     @Parameter(hidden = true) HttpServletRequest request) {
+        try {
+            Map<String, Object> loginResult = userService.login(loginDTO);
+
+            // 将token存储到session中
+            HttpSession session = request.getSession();
+            session.setAttribute("token", loginResult.get("token"));
+            session.setAttribute("user", loginResult.get("user"));
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "登录成功");
+            response.put("data", loginResult);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("用户登录失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 用户登出
+     */
+    @Operation(summary = "用户登出", description = "用户登出接口，清除session信息")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "登出成功")
+    })
+    @PostMapping("/logout")
+    public ResponseEntity<Map<String, Object>> logout(@Parameter(hidden = true) HttpServletRequest request) {
+        try {
+            HttpSession session = request.getSession(false);
+            String token = null;
+
+            if (session != null) {
+                token = (String) session.getAttribute("token");
+                session.invalidate();
+            }
+
+            userService.logout(token);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "登出成功");
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("用户登出失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取当前用户信息
+     */
+    @GetMapping("/current")
+    public ResponseEntity<Map<String, Object>> getCurrentUser(HttpServletRequest request) {
+        try {
+            HttpSession session = request.getSession(false);
+            if (session == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "用户未登录");
+                return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(response);
+            }
+
+            String token = (String) session.getAttribute("token");
+            UserDTO user = userService.getUserByToken(token);
+
+            if (user == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "用户信息已过期，请重新登录");
+                return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(response);
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", user);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取当前用户信息失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 更新用户信息
+     */
+    @PutMapping("/update")
+    public ResponseEntity<Map<String, Object>> updateUser(@Validated @RequestBody UserDTO.UpdateDTO updateDTO,
+                                                          HttpServletRequest request) {
+        try {
+            HttpSession session = request.getSession(false);
+            if (session == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "用户未登录");
+                return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(response);
+            }
+
+            String token = (String) session.getAttribute("token");
+            UserDTO currentUser = userService.getUserByToken(token);
+
+            if (currentUser == null) {
+                Map<String, Object> response = new HashMap<>();
+                response.put("success", false);
+                response.put("message", "用户信息已过期，请重新登录");
+                return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(response);
+            }
+
+            UserDTO updatedUser = userService.updateUser(currentUser.getId(), updateDTO);
+
+            // 更新session中的用户信息
+            session.setAttribute("user", updatedUser);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("message", "用户信息更新成功");
+            response.put("data", updatedUser);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("更新用户信息失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+
+    /**
+     * 获取在线用户统计
+     */
+    @GetMapping("/online-stats")
+    public ResponseEntity<Map<String, Object>> getOnlineStats() {
+        try {
+            long onlineUserCount = userService.getOnlineUserCount();
+
+            Map<String, Object> stats = new HashMap<>();
+            stats.put("onlineUserCount", onlineUserCount);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", true);
+            response.put("data", stats);
+
+            return ResponseEntity.ok(response);
+        } catch (Exception e) {
+            log.error("获取在线用户统计失败", e);
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("success", false);
+            response.put("message", e.getMessage());
+
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/dto/CartDTO.java

@@ -0,0 +1,95 @@
+package com.org.flashsalesystem.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.util.List;
+
+/**
+ * 购物车数据传输对象
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CartDTO {
+
+    private Long userId;
+    private List<CartItemDTO> items;
+    private BigDecimal totalPrice;
+    private Integer totalQuantity;
+
+    /**
+     * 购物车商品项DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class CartItemDTO {
+        private Long productId;
+        private String productName;
+        private BigDecimal productPrice;
+        private String productImageUrl;
+        private Integer quantity;
+        private BigDecimal subtotal;
+        private Integer stock; // 商品库存
+    }
+
+    /**
+     * 添加商品到购物车DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class AddItemDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+
+        @Min(value = 1, message = "商品数量必须大于0")
+        private Integer quantity = 1;
+    }
+
+    /**
+     * 更新购物车商品数量DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class UpdateQuantityDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+
+        @Min(value = 1, message = "商品数量必须大于0")
+        private Integer quantity;
+    }
+
+    /**
+     * 移除购物车商品DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class RemoveItemDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+    }
+
+    /**
+     * 批量操作DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class BatchOperationDTO {
+        @NotNull(message = "商品ID列表不能为空")
+        private List<Long> productIds;
+
+        /**
+         * 操作类型：remove-移除，clear-清空
+         */
+        private String operation;
+    }
+}

src/main/java/com/org/flashsalesystem/dto/FlashSaleDTO.java

@@ -0,0 +1,164 @@
+package com.org.flashsalesystem.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.DecimalMin;
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 秒杀活动数据传输对象
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class FlashSaleDTO {
+
+    private Long id;
+    private Long productId;
+    private String productName;
+    private String productImageUrl;
+    private BigDecimal originalPrice;
+    private BigDecimal flashPrice;
+    private Integer flashStock;
+    private Integer remainingStock;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime startTime;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime endTime;
+
+    private Integer status;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime createdAt;
+
+    // 活动状态描述
+    private String statusDescription;
+    // 是否可以参与秒杀
+    private Boolean canParticipate;
+    // 距离开始时间（毫秒）
+    private Long timeToStart;
+    // 距离结束时间（毫秒）
+    private Long timeToEnd;
+
+    /**
+     * 创建秒杀活动DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class CreateDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+
+        @NotNull(message = "秒杀价格不能为空")
+        @DecimalMin(value = "0.01", message = "秒杀价格必须大于0")
+        private BigDecimal flashPrice;
+
+        @Min(value = 1, message = "秒杀库存必须大于0")
+        private Integer flashStock;
+
+        @NotNull(message = "开始时间不能为空")
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime startTime;
+
+        @NotNull(message = "结束时间不能为空")
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime endTime;
+    }
+
+    /**
+     * 更新秒杀活动DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class UpdateDTO {
+        @DecimalMin(value = "0.01", message = "秒杀价格必须大于0")
+        private BigDecimal flashPrice;
+
+        @Min(value = 1, message = "秒杀库存必须大于0")
+        private Integer flashStock;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime startTime;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime endTime;
+
+        @Min(value = 1, message = "状态值无效")
+        @Max(value = 3, message = "状态值无效")
+        private Integer status;
+    }
+
+    /**
+     * 秒杀参与DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class ParticipateDTO {
+        @NotNull(message = "秒杀活动ID不能为空")
+        private Long flashSaleId;
+
+        @Min(value = 1, message = "购买数量必须大于0")
+        private Integer quantity = 1;
+
+        // 用户地址信息（可选）
+        private String address;
+        private String phone;
+    }
+
+    /**
+     * 秒杀查询DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class QueryDTO {
+        private Integer status; // 活动状态
+        private Long productId; // 商品ID
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime startTime;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime endTime;
+        private Integer page = 0;
+        private Integer size = 10;
+        private String sortBy = "startTime";
+        private String sortDirection = "asc";
+    }
+
+    /**
+     * 秒杀结果DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class ResultDTO {
+        private Boolean success;
+        private String message;
+        private Long orderId;
+        private Long flashSaleId;
+        private Long productId;
+        private String productName;
+        private Integer quantity;
+        private BigDecimal totalPrice;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime orderTime;
+
+        // 排队信息（如果需要排队）
+        private Integer queuePosition;
+        private Long estimatedWaitTime;
+    }
+}

src/main/java/com/org/flashsalesystem/dto/OrderDTO.java

@@ -0,0 +1,137 @@
+package com.org.flashsalesystem.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 订单数据传输对象
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OrderDTO {
+
+    private Long id;
+    private Long userId;
+    private String username;
+    private Long productId;
+    private String productName;
+    private String productImageUrl;
+    private Integer quantity;
+    private BigDecimal totalPrice;
+    private Integer status;
+    private String statusDescription;
+    private Integer orderType;
+    private String orderTypeDescription;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime createdAt;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime updatedAt;
+
+    /**
+     * 创建订单DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class CreateDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+
+        @Min(value = 1, message = "商品数量必须大于0")
+        private Integer quantity;
+
+        // 收货地址信息
+        private String receiverName;
+        private String receiverPhone;
+        private String receiverAddress;
+
+        // 备注
+        private String remark;
+    }
+
+    /**
+     * 订单查询DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class QueryDTO {
+        private Long userId;
+        private Integer status;
+        private Integer orderType;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime startTime;
+
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime endTime;
+        private Integer page = 0;
+        private Integer size = 10;
+        private String sortBy = "createdAt";
+        private String sortDirection = "desc";
+    }
+
+    /**
+     * 订单状态更新DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class StatusUpdateDTO {
+        @NotNull(message = "订单ID不能为空")
+        private Long orderId;
+
+        @NotNull(message = "订单状态不能为空")
+        private Integer status;
+
+        private String remark;
+    }
+
+    /**
+     * 批量订单操作DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class BatchOperationDTO {
+        @NotNull(message = "订单ID列表不能为空")
+        private java.util.List<Long> orderIds;
+
+        /**
+         * 操作类型：cancel-取消，pay-支付，ship-发货，complete-完成
+         */
+        @NotNull(message = "操作类型不能为空")
+        private String operation;
+
+        private String remark;
+    }
+
+    /**
+     * 订单统计DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class StatisticsDTO {
+        private Long totalOrders;
+        private Long pendingPaymentOrders;
+        private Long paidOrders;
+        private Long shippedOrders;
+        private Long completedOrders;
+        private Long cancelledOrders;
+        private BigDecimal totalAmount;
+        private BigDecimal todayAmount;
+        private Long flashSaleOrders;
+        private Long normalOrders;
+    }
+}

src/main/java/com/org/flashsalesystem/dto/ProductDTO.java

@@ -0,0 +1,127 @@
+package com.org.flashsalesystem.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.DecimalMin;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 商品数据传输对象
+ */
+@Schema(description = "商品信息")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class ProductDTO {
+
+    @Schema(description = "商品ID", example = "1")
+    private Long id;
+
+    @Schema(description = "商品名称", example = "iPhone 15 Pro", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotBlank(message = "商品名称不能为空")
+    private String name;
+
+    @Schema(description = "商品描述", example = "最新款iPhone，搭载A17 Pro芯片")
+    private String description;
+
+    @Schema(description = "商品价格", example = "8999.00", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotNull(message = "商品价格不能为空")
+    @DecimalMin(value = "0.01", message = "商品价格必须大于0")
+    private BigDecimal price;
+
+    @Schema(description = "库存数量", example = "100")
+    @Min(value = 0, message = "库存不能为负数")
+    private Integer stock;
+
+    private String imageUrl;
+
+    private Integer status;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime createdAt;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime updatedAt;
+
+    /**
+     * 商品创建DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class CreateDTO {
+        @NotBlank(message = "商品名称不能为空")
+        private String name;
+
+        private String description;
+
+        @NotNull(message = "商品价格不能为空")
+        @DecimalMin(value = "0.01", message = "商品价格必须大于0")
+        private BigDecimal price;
+
+        @Min(value = 0, message = "库存不能为负数")
+        private Integer stock = 0;
+
+        private String imageUrl;
+    }
+
+    /**
+     * 商品更新DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class UpdateDTO {
+        private String name;
+        private String description;
+        private BigDecimal price;
+        private Integer stock;
+        private String imageUrl;
+        private Integer status;
+    }
+
+    /**
+     * 商品查询DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class QueryDTO {
+        private String name;
+        private BigDecimal minPrice;
+        private BigDecimal maxPrice;
+        private Integer status;
+        private Integer page = 0;
+        private Integer size = 10;
+        private String sortBy = "id";
+        private String sortDirection = "desc";
+    }
+
+    /**
+     * 商品库存更新DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class StockUpdateDTO {
+        @NotNull(message = "商品ID不能为空")
+        private Long productId;
+
+        @NotNull(message = "库存变化量不能为空")
+        private Integer quantity;
+
+        /**
+         * 操作类型：increase-增加，decrease-减少
+         */
+        @NotBlank(message = "操作类型不能为空")
+        private String operation;
+    }
+}

src/main/java/com/org/flashsalesystem/dto/UserDTO.java

@@ -0,0 +1,117 @@
+package com.org.flashsalesystem.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.Email;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+import java.time.LocalDateTime;
+
+/**
+ * 用户数据传输对象
+ */
+@Schema(description = "用户信息")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class UserDTO {
+
+    @Schema(description = "用户ID", example = "1")
+    private Long id;
+
+    @Schema(description = "用户名", example = "admin", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotBlank(message = "用户名不能为空")
+    @Size(min = 3, max = 50, message = "用户名长度必须在3-50个字符之间")
+    private String username;
+
+    @Schema(description = "密码", example = "123456", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotBlank(message = "密码不能为空")
+    @Size(min = 6, max = 100, message = "密码长度必须在6-100个字符之间")
+    private String password;
+
+    @Schema(description = "邮箱地址", example = "admin@example.com")
+    @Email(message = "邮箱格式不正确")
+    private String email;
+
+    @Schema(description = "手机号码", example = "13888888888")
+    @Size(max = 20, message = "手机号长度不能超过20个字符")
+    private String phone;
+
+    @Schema(description = "用户状态", example = "1")
+    private Integer status;
+
+    @Schema(description = "是否在线", example = "true")
+    private Boolean isOnline;
+
+    @Schema(description = "创建时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime createdAt;
+
+    @Schema(description = "最后登录时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime lastLogin;
+
+    @Schema(description = "更新时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime updatedAt;
+
+    /**
+     * 用户登录DTO
+     */
+    @Schema(description = "用户登录信息")
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class LoginDTO {
+        @Schema(description = "用户名", example = "admin", requiredMode = Schema.RequiredMode.REQUIRED)
+        @NotBlank(message = "用户名不能为空")
+        private String username;
+
+        @Schema(description = "密码", example = "123456", requiredMode = Schema.RequiredMode.REQUIRED)
+        @NotBlank(message = "密码不能为空")
+        private String password;
+    }
+
+    /**
+     * 用户注册DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class RegisterDTO {
+        @NotBlank(message = "用户名不能为空")
+        @Size(min = 3, max = 50, message = "用户名长度必须在3-50个字符之间")
+        private String username;
+
+        @NotBlank(message = "密码不能为空")
+        @Size(min = 6, max = 100, message = "密码长度必须在6-100个字符之间")
+        private String password;
+
+        @NotBlank(message = "确认密码不能为空")
+        private String confirmPassword;
+
+        @Email(message = "邮箱格式不正确")
+        private String email;
+
+        @Size(max = 20, message = "手机号长度不能超过20个字符")
+        private String phone;
+    }
+
+    /**
+     * 用户信息更新DTO
+     */
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class UpdateDTO {
+        @Email(message = "邮箱格式不正确")
+        private String email;
+
+        @Size(max = 20, message = "手机号长度不能超过20个字符")
+        private String phone;
+    }
+}

src/main/java/com/org/flashsalesystem/entity/FlashSale.java

@@ -0,0 +1,89 @@
+package com.org.flashsalesystem.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import javax.validation.constraints.DecimalMin;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 秒杀活动实体类
+ * 对应数据库flash_sales表
+ */
+@Entity
+@Table(name = "flash_sales")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class FlashSale {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotNull(message = "商品ID不能为空")
+    @Column(name = "product_id", nullable = false)
+    private Long productId;
+
+    @NotNull(message = "秒杀价格不能为空")
+    @DecimalMin(value = "0.01", message = "秒杀价格必须大于0")
+    @Column(name = "flash_price", nullable = false, precision = 10, scale = 2)
+    private BigDecimal flashPrice;
+
+    @Min(value = 1, message = "秒杀库存必须大于0")
+    @Column(name = "flash_stock", nullable = false)
+    private Integer flashStock;
+
+    @NotNull(message = "开始时间不能为空")
+    @Column(name = "start_time", nullable = false)
+    private LocalDateTime startTime;
+
+    @NotNull(message = "结束时间不能为空")
+    @Column(name = "end_time", nullable = false)
+    private LocalDateTime endTime;
+
+    /**
+     * 活动状态：1-未开始，2-进行中，3-已结束
+     */
+    @Column(nullable = false)
+    private Integer status = 1;
+
+    @Column(name = "created_at", nullable = false, updatable = false)
+    private LocalDateTime createdAt;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "product_id", insertable = false, updatable = false)
+    private Product product;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+    }
+
+    /**
+     * 检查活动是否已开始
+     */
+    public boolean isStarted() {
+        return LocalDateTime.now().isAfter(startTime);
+    }
+
+    /**
+     * 检查活动是否已结束
+     */
+    public boolean isEnded() {
+        return LocalDateTime.now().isAfter(endTime);
+    }
+
+    /**
+     * 检查活动是否正在进行中
+     */
+    public boolean isActive() {
+        LocalDateTime now = LocalDateTime.now();
+        return now.isAfter(startTime) && now.isBefore(endTime) && status == 2;
+    }
+}

src/main/java/com/org/flashsalesystem/entity/Order.java

@@ -0,0 +1,133 @@
+package com.org.flashsalesystem.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import javax.validation.constraints.DecimalMin;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 订单实体类
+ * 对应数据库orders表
+ */
+@Entity
+@Table(name = "orders")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Order {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotNull(message = "用户ID不能为空")
+    @Column(name = "user_id", nullable = false)
+    private Long userId;
+
+    @NotNull(message = "商品ID不能为空")
+    @Column(name = "product_id", nullable = false)
+    private Long productId;
+
+    @Min(value = 1, message = "商品数量必须大于0")
+    @Column(nullable = false)
+    private Integer quantity;
+
+    @NotNull(message = "订单总价不能为空")
+    @DecimalMin(value = "0.01", message = "订单总价必须大于0")
+    @Column(name = "total_price", nullable = false, precision = 10, scale = 2)
+    private BigDecimal totalPrice;
+
+    /**
+     * 订单状态：1-待支付，2-已支付，3-已发货，4-已完成，5-已取消
+     */
+    @Column(nullable = false)
+    private Integer status = 1;
+
+    /**
+     * 订单类型：1-普通订单，2-秒杀订单
+     */
+    @Column(name = "order_type", nullable = false)
+    private Integer orderType = 1;
+
+    @Column(name = "created_at", nullable = false, updatable = false)
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id", insertable = false, updatable = false)
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "product_id", insertable = false, updatable = false)
+    private Product product;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    protected void onUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+
+    /**
+     * 订单状态枚举
+     */
+    public enum OrderStatus {
+        PENDING_PAYMENT(1, "待支付"),
+        PAID(2, "已支付"),
+        SHIPPED(3, "已发货"),
+        COMPLETED(4, "已完成"),
+        CANCELLED(5, "已取消");
+
+        private final int code;
+        private final String description;
+
+        OrderStatus(int code, String description) {
+            this.code = code;
+            this.description = description;
+        }
+
+        public int getCode() {
+            return code;
+        }
+
+        public String getDescription() {
+            return description;
+        }
+    }
+
+    /**
+     * 订单类型枚举
+     */
+    public enum OrderType {
+        NORMAL(1, "普通订单"),
+        FLASH_SALE(2, "秒杀订单");
+
+        private final int code;
+        private final String description;
+
+        OrderType(int code, String description) {
+            this.code = code;
+            this.description = description;
+        }
+
+        public int getCode() {
+            return code;
+        }
+
+        public String getDescription() {
+            return description;
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/entity/Product.java

@@ -0,0 +1,71 @@
+package com.org.flashsalesystem.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import javax.validation.constraints.DecimalMin;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 商品实体类
+ * 对应数据库products表
+ */
+@Entity
+@Table(name = "products")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Product {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotBlank(message = "商品名称不能为空")
+    @Column(nullable = false, length = 200)
+    private String name;
+
+    @Column(columnDefinition = "TEXT")
+    private String description;
+
+    @NotNull(message = "商品价格不能为空")
+    @DecimalMin(value = "0.01", message = "商品价格必须大于0")
+    @Column(nullable = false, precision = 10, scale = 2)
+    private BigDecimal price;
+
+    @Min(value = 0, message = "库存不能为负数")
+    @Column(nullable = false)
+    private Integer stock = 0;
+
+    @Column(name = "image_url", length = 500)
+    private String imageUrl;
+
+    /**
+     * 商品状态：1-上架，0-下架
+     */
+    @Column(nullable = false)
+    private Integer status = 1;
+
+    @Column(name = "created_at", nullable = false, updatable = false)
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    protected void onUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+}

src/main/java/com/org/flashsalesystem/entity/User.java

@@ -0,0 +1,68 @@
+package com.org.flashsalesystem.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import javax.validation.constraints.Email;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+import java.time.LocalDateTime;
+
+/**
+ * 用户实体类
+ * 对应数据库users表
+ */
+@Entity
+@Table(name = "users")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class User {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotBlank(message = "用户名不能为空")
+    @Size(min = 3, max = 50, message = "用户名长度必须在3-50个字符之间")
+    @Column(unique = true, nullable = false, length = 50)
+    private String username;
+
+    @NotBlank(message = "密码不能为空")
+    @Size(min = 6, max = 100, message = "密码长度必须在6-100个字符之间")
+    @Column(nullable = false, length = 100)
+    private String password;
+
+    @Email(message = "邮箱格式不正确")
+    @Column(length = 100)
+    private String email;
+
+    @Size(max = 20, message = "手机号长度不能超过20个字符")
+    @Column(length = 20)
+    private String phone;
+
+    @Column(name = "status", nullable = false)
+    private Integer status = 1; // 1-正常, 0-禁用
+
+    @Column(name = "last_login")
+    private LocalDateTime lastLogin;
+
+    @Column(name = "created_at", nullable = false, updatable = false)
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    protected void onUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+}

src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java

@@ -0,0 +1,116 @@
+package com.org.flashsalesystem.repository;
+
+import com.org.flashsalesystem.entity.FlashSale;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * 秒杀活动数据访问层
+ */
+@Repository
+public interface FlashSaleRepository extends JpaRepository<FlashSale, Long> {
+
+    /**
+     * 根据商品ID查找秒杀活动
+     */
+    Optional<FlashSale> findByProductId(Long productId);
+
+    /**
+     * 分页查找指定商品的秒杀活动
+     */
+    Page<FlashSale> findByProductId(Long productId, Pageable pageable);
+
+    /**
+     * 根据商品ID和状态查找秒杀活动
+     */
+    Page<FlashSale> findByProductIdAndStatus(Long productId, Integer status, Pageable pageable);
+
+    /**
+     * 查找正在进行的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime <= :now AND f.endTime > :now AND f.status = 2")
+    List<FlashSale> findActiveFlashSales(@Param("now") LocalDateTime now);
+
+    /**
+     * 分页查找正在进行的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime <= :now AND f.endTime > :now AND f.status = 2")
+    Page<FlashSale> findActiveFlashSales(@Param("now") LocalDateTime now, Pageable pageable);
+
+    /**
+     * 查找即将开始的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime > :now AND f.status = 1")
+    List<FlashSale> findUpcomingFlashSales(@Param("now") LocalDateTime now);
+
+    /**
+     * 分页查找即将开始的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime > :now AND f.status = 1")
+    Page<FlashSale> findUpcomingFlashSales(@Param("now") LocalDateTime now, Pageable pageable);
+
+    /**
+     * 查找已结束的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.endTime <= :now OR f.status = 3")
+    List<FlashSale> findEndedFlashSales(@Param("now") LocalDateTime now);
+
+    /**
+     * 分页查找已结束的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.endTime <= :now OR f.status = 3")
+    Page<FlashSale> findEndedFlashSales(@Param("now") LocalDateTime now, Pageable pageable);
+
+    /**
+     * 更新秒杀库存
+     */
+    @Modifying
+    @Query("UPDATE FlashSale f SET f.flashStock = f.flashStock - :quantity WHERE f.id = :flashSaleId AND f.flashStock" +
+            " >= :quantity")
+    int updateFlashStock(@Param("flashSaleId") Long flashSaleId, @Param("quantity") Integer quantity);
+
+    /**
+     * 更新秒杀活动状态
+     */
+    @Modifying
+    @Query("UPDATE FlashSale f SET f.status = :status WHERE f.id = :flashSaleId")
+    int updateStatus(@Param("flashSaleId") Long flashSaleId, @Param("status") Integer status);
+
+    /**
+     * 查找指定时间范围内的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime >= :startTime AND f.endTime <= :endTime")
+    List<FlashSale> findByTimeRange(@Param("startTime") LocalDateTime startTime,
+                                    @Param("endTime") LocalDateTime endTime);
+
+    /**
+     * 查找有库存的正在进行的秒杀活动
+     */
+    @Query("SELECT f FROM FlashSale f WHERE f.startTime <= :now AND f.endTime > :now AND f.status = 2 AND f" +
+            ".flashStock > 0")
+    List<FlashSale> findActiveFlashSalesWithStock(@Param("now") LocalDateTime now);
+
+    /**
+     * 统计指定时间范围内正在进行的秒杀活动数量
+     */
+    long countByStartTimeLessThanEqualAndEndTimeGreaterThanEqual(LocalDateTime startTime, LocalDateTime endTime);
+
+    /**
+     * 统计指定时间范围内的秒杀活动数量
+     */
+    long countByStartTimeBetween(LocalDateTime startTime, LocalDateTime endTime);
+
+    /**
+     * 统计已结束的秒杀活动数量
+     */
+    long countByEndTimeLessThan(LocalDateTime endTime);
+}

src/main/java/com/org/flashsalesystem/repository/OrderRepository.java

@@ -0,0 +1,142 @@
+package com.org.flashsalesystem.repository;
+
+import com.org.flashsalesystem.entity.Order;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 订单数据访问层
+ */
+@Repository
+public interface OrderRepository extends JpaRepository<Order, Long> {
+
+    /**
+     * 根据用户ID查找订单
+     */
+    List<Order> findByUserId(Long userId);
+
+    /**
+     * 分页查找用户订单
+     */
+    Page<Order> findByUserId(Long userId, Pageable pageable);
+
+    /**
+     * 根据用户ID和订单状态查找订单
+     */
+    List<Order> findByUserIdAndStatus(Long userId, Integer status);
+
+    /**
+     * 分页查找用户指定状态的订单
+     */
+    Page<Order> findByUserIdAndStatus(Long userId, Integer status, Pageable pageable);
+
+    /**
+     * 根据订单类型查找订单
+     */
+    List<Order> findByOrderType(Integer orderType);
+
+    /**
+     * 分页查找指定类型的订单
+     */
+    Page<Order> findByOrderType(Integer orderType, Pageable pageable);
+
+    /**
+     * 查找秒杀订单
+     */
+    @Query("SELECT o FROM Order o WHERE o.orderType = 2")
+    List<Order> findFlashSaleOrders();
+
+    /**
+     * 查找指定时间范围内的订单
+     */
+    @Query("SELECT o FROM Order o WHERE o.createdAt >= :startTime AND o.createdAt <= :endTime")
+    List<Order> findByTimeRange(@Param("startTime") LocalDateTime startTime, @Param("endTime") LocalDateTime endTime);
+
+    /**
+     * 分页查找指定时间范围内的订单
+     */
+    @Query("SELECT o FROM Order o WHERE o.createdAt >= :startTime AND o.createdAt <= :endTime")
+    Page<Order> findByTimeRange(@Param("startTime") LocalDateTime startTime, @Param("endTime") LocalDateTime endTime,
+                                Pageable pageable);
+
+    /**
+     * 统计用户订单数量
+     */
+    @Query("SELECT COUNT(o) FROM Order o WHERE o.userId = :userId")
+    Long countByUserId(@Param("userId") Long userId);
+
+    /**
+     * 统计指定状态的订单数量
+     */
+    @Query("SELECT COUNT(o) FROM Order o WHERE o.status = :status")
+    Long countByStatus(@Param("status") Integer status);
+
+    /**
+     * 根据订单状态查找订单
+     */
+    List<Order> findByStatus(Integer status);
+
+    /**
+     * 根据订单状态查找订单（分页）
+     */
+    Page<Order> findByStatus(Integer status, Pageable pageable);
+
+    /**
+     * 统计指定类型的订单数量
+     */
+    @Query("SELECT COUNT(o) FROM Order o WHERE o.orderType = :orderType")
+    Long countByOrderType(@Param("orderType") Integer orderType);
+
+    /**
+     * 更新订单状态
+     */
+    @Modifying
+    @Query("UPDATE Order o SET o.status = :status WHERE o.id = :orderId")
+    int updateStatus(@Param("orderId") Long orderId, @Param("status") Integer status);
+
+    /**
+     * 查找用户在指定商品上的订单
+     */
+    @Query("SELECT o FROM Order o WHERE o.userId = :userId AND o.productId = :productId")
+    List<Order> findByUserIdAndProductId(@Param("userId") Long userId, @Param("productId") Long productId);
+
+    /**
+     * 查找用户的秒杀订单
+     */
+    @Query("SELECT o FROM Order o WHERE o.userId = :userId AND o.orderType = 2")
+    List<Order> findFlashSaleOrdersByUserId(@Param("userId") Long userId);
+
+    /**
+     * 检查用户是否已经购买过指定商品的秒杀
+     */
+    @Query("SELECT COUNT(o) > 0 FROM Order o WHERE o.userId = :userId AND o.productId = :productId AND o.orderType = 2")
+    boolean existsFlashSaleOrder(@Param("userId") Long userId, @Param("productId") Long productId);
+
+    /**
+     * 根据创建时间范围统计订单数量
+     */
+    long countByCreatedAtBetween(LocalDateTime startTime, LocalDateTime endTime);
+
+    /**
+     * 根据订单状态计算总金额
+     */
+    @Query("SELECT SUM(o.totalPrice) FROM Order o WHERE o.status = :status")
+    BigDecimal sumTotalPriceByStatus(@Param("status") Integer status);
+
+    /**
+     * 根据订单ID或用户名搜索订单
+     */
+    @Query("SELECT o FROM Order o JOIN User u ON o.userId = u.id WHERE CAST(o.id AS string) LIKE %:keyword% OR u" +
+            ".username LIKE %:keyword%")
+    Page<Order> findByIdContainingOrUserUsernameContaining(@Param("keyword") String keyword1,
+                                                           @Param("keyword") String keyword2, Pageable pageable);
+}

src/main/java/com/org/flashsalesystem/repository/ProductRepository.java

@@ -0,0 +1,84 @@
+package com.org.flashsalesystem.repository;
+
+import com.org.flashsalesystem.entity.Product;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+/**
+ * 商品数据访问层
+ */
+@Repository
+public interface ProductRepository extends JpaRepository<Product, Long> {
+
+    /**
+     * 查找所有上架的商品
+     */
+    List<Product> findByStatus(Integer status);
+
+    /**
+     * 分页查找上架的商品
+     */
+    Page<Product> findByStatus(Integer status, Pageable pageable);
+
+    /**
+     * 根据商品名称模糊查询
+     */
+    @Query("SELECT p FROM Product p WHERE p.name LIKE %:name% AND p.status = 1")
+    List<Product> findByNameContaining(@Param("name") String name);
+
+    /**
+     * 根据商品名称模糊查询（分页）
+     */
+    @Query("SELECT p FROM Product p WHERE p.name LIKE %:name%")
+    Page<Product> findByNameContaining(@Param("name") String name, Pageable pageable);
+
+    /**
+     * 根据商品名称和状态查询（分页）
+     */
+    @Query("SELECT p FROM Product p WHERE p.name LIKE %:name% AND p.status = :status")
+    Page<Product> findByNameContainingAndStatus(@Param("name") String name, @Param("status") Integer status,
+                                                Pageable pageable);
+
+    /**
+     * 查找库存大于指定数量的商品
+     */
+    @Query("SELECT p FROM Product p WHERE p.stock > :stock AND p.status = 1")
+    List<Product> findByStockGreaterThan(@Param("stock") Integer stock);
+
+    /**
+     * 更新商品库存
+     */
+    @Modifying
+    @Query("UPDATE Product p SET p.stock = p.stock - :quantity WHERE p.id = :productId AND p.stock >= :quantity")
+    int updateStock(@Param("productId") Long productId, @Param("quantity") Integer quantity);
+
+    /**
+     * 增加商品库存
+     */
+    @Modifying
+    @Query("UPDATE Product p SET p.stock = p.stock + :quantity WHERE p.id = :productId")
+    int increaseStock(@Param("productId") Long productId, @Param("quantity") Integer quantity);
+
+    /**
+     * 查找热门商品（可以根据销量等指标排序）
+     */
+    @Query("SELECT p FROM Product p WHERE p.status = 1 ORDER BY p.id DESC")
+    List<Product> findHotProducts(Pageable pageable);
+
+    /**
+     * 统计指定状态的商品数量
+     */
+    long countByStatus(Integer status);
+
+    /**
+     * 统计库存小于指定数量的商品数量
+     */
+    long countByStockLessThan(Integer stock);
+}

src/main/java/com/org/flashsalesystem/repository/UserRepository.java

@@ -0,0 +1,75 @@
+package com.org.flashsalesystem.repository;
+
+import com.org.flashsalesystem.entity.User;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.time.LocalDateTime;
+import java.util.Optional;
+
+/**
+ * 用户数据访问层
+ */
+@Repository
+public interface UserRepository extends JpaRepository<User, Long> {
+
+    /**
+     * 根据用户名查找用户
+     */
+    Optional<User> findByUsername(String username);
+
+    /**
+     * 根据邮箱查找用户
+     */
+    Optional<User> findByEmail(String email);
+
+    /**
+     * 根据手机号查找用户
+     */
+    Optional<User> findByPhone(String phone);
+
+    /**
+     * 检查用户名是否存在
+     */
+    boolean existsByUsername(String username);
+
+    /**
+     * 检查邮箱是否存在
+     */
+    boolean existsByEmail(String email);
+
+    /**
+     * 检查手机号是否存在
+     */
+    boolean existsByPhone(String phone);
+
+    /**
+     * 根据用户名和密码查找用户（用于登录验证）
+     */
+    @Query("SELECT u FROM User u WHERE u.username = :username AND u.password = :password")
+    Optional<User> findByUsernameAndPassword(@Param("username") String username, @Param("password") String password);
+
+    /**
+     * 统计最近登录的用户数量
+     */
+    long countByLastLoginAfter(LocalDateTime lastLogin);
+
+    /**
+     * 统计指定时间范围内创建的用户数量
+     */
+    long countByCreatedAtBetween(LocalDateTime startTime, LocalDateTime endTime);
+
+    /**
+     * 根据用户名或邮箱搜索用户
+     */
+    Page<User> findByUsernameContainingOrEmailContaining(String username, String email, Pageable pageable);
+
+    /**
+     * 根据状态查找用户
+     */
+    Page<User> findByStatus(Integer status, Pageable pageable);
+}

src/main/java/com/org/flashsalesystem/service/AdminService.java

@@ -0,0 +1,671 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.entity.Order;
+import com.org.flashsalesystem.entity.Product;
+import com.org.flashsalesystem.entity.User;
+import com.org.flashsalesystem.repository.FlashSaleRepository;
+import com.org.flashsalesystem.repository.OrderRepository;
+import com.org.flashsalesystem.repository.ProductRepository;
+import com.org.flashsalesystem.repository.UserRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * 管理后台服务类
+ */
+@Service
+@Slf4j
+public class AdminService {
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @Autowired
+    private ProductRepository productRepository;
+
+    @Autowired
+    private OrderRepository orderRepository;
+
+    @Autowired
+    private FlashSaleRepository flashSaleRepository;
+
+    @Autowired
+    private RedisService redisService;
+
+    /**
+     * 获取仪表盘统计数据
+     */
+    public Map<String, Object> getDashboardStats() {
+        Map<String, Object> stats = new HashMap<>();
+
+        try {
+            // 总用户数
+            long totalUsers = userRepository.count();
+            stats.put("totalUsers", totalUsers);
+
+            // 总商品数
+            long totalProducts = productRepository.count();
+            stats.put("totalProducts", totalProducts);
+
+            // 活跃秒杀数
+            LocalDateTime now = LocalDateTime.now();
+            long activeFlashSales = flashSaleRepository.countByStartTimeLessThanEqualAndEndTimeGreaterThanEqual(now,
+                                                                                                                now);
+            stats.put("activeFlashSales", activeFlashSales);
+
+            // 今日订单数
+            LocalDateTime startOfDay = LocalDate.now().atStartOfDay();
+            LocalDateTime endOfDay = LocalDate.now().atTime(LocalTime.MAX);
+            long todayOrders = orderRepository.countByCreatedAtBetween(startOfDay, endOfDay);
+            stats.put("todayOrders", todayOrders);
+
+            // 总订单数
+            long totalOrders = orderRepository.count();
+            stats.put("totalOrders", totalOrders);
+
+            // 已支付订单数
+            Long paidOrdersCount = orderRepository.countByStatus(2); // 2-已支付
+            long paidOrders = paidOrdersCount != null ? paidOrdersCount : 0L;
+            stats.put("paidOrders", paidOrders);
+
+            // 待处理订单数
+            Long pendingOrdersCount = orderRepository.countByStatus(1); // 1-待支付
+            long pendingOrders = pendingOrdersCount != null ? pendingOrdersCount : 0L;
+            stats.put("pendingOrders", pendingOrders);
+
+            // 总交易额
+            BigDecimal totalAmount = orderRepository.sumTotalPriceByStatus(2); // 2-已支付
+            if (totalAmount == null) {
+                totalAmount = BigDecimal.ZERO;
+            }
+            stats.put("totalAmount", totalAmount);
+
+            log.info("获取仪表盘统计数据成功: {}", stats);
+
+        } catch (Exception e) {
+            log.error("获取仪表盘统计数据失败", e);
+            // 返回默认值
+            stats.put("totalUsers", 0L);
+            stats.put("totalProducts", 0L);
+            stats.put("activeFlashSales", 0L);
+            stats.put("todayOrders", 0L);
+            stats.put("totalOrders", 0L);
+            stats.put("paidOrders", 0L);
+            stats.put("pendingOrders", 0L);
+            stats.put("totalAmount", BigDecimal.ZERO);
+        }
+
+        return stats;
+    }
+
+    /**
+     * 获取用户统计数据
+     */
+    public Map<String, Object> getUserStats() {
+        Map<String, Object> stats = new HashMap<>();
+
+        try {
+            // 总用户数
+            long totalUsers = userRepository.count();
+            stats.put("totalUsers", totalUsers);
+
+            // 活跃用户数（最近7天登录）
+            LocalDateTime sevenDaysAgo = LocalDateTime.now().minusDays(7);
+            long activeUsers = userRepository.countByLastLoginAfter(sevenDaysAgo);
+            stats.put("activeUsers", activeUsers);
+
+            // 新用户数（今天注册）
+            LocalDateTime startOfDay = LocalDate.now().atStartOfDay();
+            LocalDateTime endOfDay = LocalDate.now().atTime(LocalTime.MAX);
+            long newUsers = userRepository.countByCreatedAtBetween(startOfDay, endOfDay);
+            stats.put("newUsers", newUsers);
+
+            // 在线用户数（从Redis获取）
+            String onlineUsersKey = "online_users";
+            long onlineUsers = redisService.sCard(onlineUsersKey);
+            stats.put("onlineUsers", onlineUsers);
+
+        } catch (Exception e) {
+            log.error("获取用户统计数据失败", e);
+            stats.put("totalUsers", 0L);
+            stats.put("activeUsers", 0L);
+            stats.put("newUsers", 0L);
+            stats.put("onlineUsers", 0L);
+        }
+
+        return stats;
+    }
+
+    /**
+     * 获取订单统计数据
+     */
+    public Map<String, Object> getOrderStats() {
+        Map<String, Object> stats = new HashMap<>();
+
+        try {
+            // 总订单数
+            long totalOrders = orderRepository.count();
+            stats.put("totalOrders", totalOrders);
+
+            // 已支付订单数
+            Long paidOrdersCount = orderRepository.countByStatus(2); // 2-已支付
+            long paidOrders = paidOrdersCount != null ? paidOrdersCount : 0L;
+            stats.put("paidOrders", paidOrders);
+
+            // 待处理订单数
+            Long pendingOrdersCount = orderRepository.countByStatus(1); // 1-待支付
+            long pendingOrders = pendingOrdersCount != null ? pendingOrdersCount : 0L;
+            stats.put("pendingOrders", pendingOrders);
+
+            // 已取消订单数
+            Long cancelledOrdersCount = orderRepository.countByStatus(5); // 5-已取消
+            long cancelledOrders = cancelledOrdersCount != null ? cancelledOrdersCount : 0L;
+            stats.put("cancelledOrders", cancelledOrders);
+
+            // 总交易额
+            BigDecimal totalAmount = orderRepository.sumTotalPriceByStatus(2); // 2-已支付
+            if (totalAmount == null) {
+                totalAmount = BigDecimal.ZERO;
+            }
+            stats.put("totalAmount", totalAmount);
+
+            // 今日订单数
+            LocalDateTime startOfDay = LocalDate.now().atStartOfDay();
+            LocalDateTime endOfDay = LocalDate.now().atTime(LocalTime.MAX);
+            long todayOrders = orderRepository.countByCreatedAtBetween(startOfDay, endOfDay);
+            stats.put("todayOrders", todayOrders);
+
+        } catch (Exception e) {
+            log.error("获取订单统计数据失败", e);
+            stats.put("totalOrders", 0L);
+            stats.put("paidOrders", 0L);
+            stats.put("pendingOrders", 0L);
+            stats.put("cancelledOrders", 0L);
+            stats.put("totalAmount", BigDecimal.ZERO);
+            stats.put("todayOrders", 0L);
+        }
+
+        return stats;
+    }
+
+    /**
+     * 获取商品统计数据
+     */
+    public Map<String, Object> getProductStats() {
+        Map<String, Object> stats = new HashMap<>();
+
+        try {
+            // 总商品数
+            long totalProducts = productRepository.count();
+            stats.put("totalProducts", totalProducts);
+
+            // 上架商品数
+            long activeProducts = productRepository.countByStatus(1);
+            stats.put("activeProducts", activeProducts);
+
+            // 下架商品数
+            long inactiveProducts = productRepository.countByStatus(0);
+            stats.put("inactiveProducts", inactiveProducts);
+
+            // 库存不足商品数（库存小于10）
+            long lowStockProducts = productRepository.countByStockLessThan(10);
+            stats.put("lowStockProducts", lowStockProducts);
+
+        } catch (Exception e) {
+            log.error("获取商品统计数据失败", e);
+            stats.put("totalProducts", 0L);
+            stats.put("activeProducts", 0L);
+            stats.put("inactiveProducts", 0L);
+            stats.put("lowStockProducts", 0L);
+        }
+
+        return stats;
+    }
+
+    /**
+     * 获取秒杀统计数据
+     */
+    public Map<String, Object> getFlashSaleStats() {
+        Map<String, Object> stats = new HashMap<>();
+
+        try {
+            LocalDateTime now = LocalDateTime.now();
+
+            // 总秒杀活动数
+            long totalFlashSales = flashSaleRepository.count();
+            stats.put("totalFlashSales", totalFlashSales);
+
+            // 活跃秒杀数
+            long activeFlashSales = flashSaleRepository.countByStartTimeLessThanEqualAndEndTimeGreaterThanEqual(now,
+                                                                                                                now);
+            stats.put("activeFlashSales", activeFlashSales);
+
+            // 即将开始的秒杀数
+            LocalDateTime oneHourLater = now.plusHours(1);
+            long upcomingFlashSales = flashSaleRepository.countByStartTimeBetween(now, oneHourLater);
+            stats.put("upcomingFlashSales", upcomingFlashSales);
+
+            // 已结束的秒杀数
+            long endedFlashSales = flashSaleRepository.countByEndTimeLessThan(now);
+            stats.put("endedFlashSales", endedFlashSales);
+
+        } catch (Exception e) {
+            log.error("获取秒杀统计数据失败", e);
+            stats.put("totalFlashSales", 0L);
+            stats.put("activeFlashSales", 0L);
+            stats.put("upcomingFlashSales", 0L);
+            stats.put("endedFlashSales", 0L);
+        }
+
+        return stats;
+    }
+
+    /**
+     * 获取最近订单列表
+     */
+    public List<Map<String, Object>> getRecentOrders(int limit) {
+        try {
+            Pageable pageable = PageRequest.of(0, limit, Sort.by(Sort.Direction.DESC, "createdAt"));
+            Page<Order> orders = orderRepository.findAll(pageable);
+
+            return orders.getContent().stream().map(order -> {
+                Map<String, Object> orderMap = new HashMap<>();
+                orderMap.put("id", order.getId());
+                orderMap.put("username", order.getUser().getUsername());
+                orderMap.put("productName", order.getProduct().getName());
+                orderMap.put("quantity", order.getQuantity());
+                orderMap.put("totalAmount", order.getTotalPrice());
+                orderMap.put("status", order.getStatus());
+                orderMap.put("createdAt", order.getCreatedAt());
+                orderMap.put("isFlashSale", order.getOrderType() == 2); // 2表示秒杀订单
+                return orderMap;
+            }).collect(Collectors.toList());
+
+        } catch (Exception e) {
+            log.error("获取最近订单失败", e);
+            return new ArrayList<>();
+        }
+    }
+
+    /**
+     * 获取热门商品列表
+     */
+    public List<Map<String, Object>> getHotProducts(int limit) {
+        try {
+            // 这里可以根据销量排序，暂时按创建时间排序
+            Pageable pageable = PageRequest.of(0, limit, Sort.by(Sort.Direction.DESC, "createdAt"));
+            Page<Product> products = productRepository.findAll(pageable);
+
+            return products.getContent().stream().map(product -> {
+                Map<String, Object> productMap = new HashMap<>();
+                productMap.put("id", product.getId());
+                productMap.put("name", product.getName());
+                productMap.put("price", product.getPrice());
+                productMap.put("stock", product.getStock());
+                productMap.put("sales", 0); // 暂时设为0，后续可以添加销量统计
+                return productMap;
+            }).collect(Collectors.toList());
+
+        } catch (Exception e) {
+            log.error("获取热门商品失败", e);
+            return new ArrayList<>();
+        }
+    }
+
+    /**
+     * 获取用户列表
+     */
+    public Map<String, Object> getUsers(int page, int size, String keyword, Integer status) {
+        try {
+            Pageable pageable = PageRequest.of(page - 1, size, Sort.by(Sort.Direction.DESC, "createdAt"));
+            Page<User> userPage;
+
+            if (keyword != null && !keyword.trim().isEmpty()) {
+                userPage = userRepository.findByUsernameContainingOrEmailContaining(keyword, keyword, pageable);
+            } else if (status != null) {
+                userPage = userRepository.findByStatus(status, pageable);
+            } else {
+                userPage = userRepository.findAll(pageable);
+            }
+
+            List<UserDTO> userDTOs = userPage.getContent().stream().map(user -> {
+                UserDTO dto = new UserDTO();
+                BeanUtils.copyProperties(user, dto);
+                dto.setPassword(null); // 不返回密码
+                dto.setIsOnline(redisService.sIsMember("online_users", user.getId().toString()));
+                return dto;
+            }).collect(Collectors.toList());
+
+            Map<String, Object> result = new HashMap<>();
+            result.put("users", userDTOs);
+            result.put("total", userPage.getTotalElements());
+            result.put("totalPages", userPage.getTotalPages());
+            result.put("currentPage", page);
+            result.put("size", size);
+
+            return result;
+
+        } catch (Exception e) {
+            log.error("获取用户列表失败", e);
+            Map<String, Object> result = new HashMap<>();
+            result.put("users", new ArrayList<>());
+            result.put("total", 0L);
+            result.put("totalPages", 0);
+            result.put("currentPage", page);
+            result.put("size", size);
+            return result;
+        }
+    }
+
+    /**
+     * 获取订单列表
+     */
+    public Map<String, Object> getOrders(int page, int size, String keyword, String status) {
+        try {
+            Pageable pageable = PageRequest.of(page - 1, size, Sort.by(Sort.Direction.DESC, "createdAt"));
+            Page<Order> orderPage;
+
+            if (keyword != null && !keyword.trim().isEmpty()) {
+                orderPage = orderRepository.findByIdContainingOrUserUsernameContaining(keyword, keyword, pageable);
+            } else if (status != null && !status.trim().isEmpty()) {
+                Integer statusInt = Integer.parseInt(status);
+                orderPage = orderRepository.findByStatus(statusInt, pageable);
+            } else {
+                orderPage = orderRepository.findAll(pageable);
+            }
+
+            List<Map<String, Object>> orders = orderPage.getContent().stream().map(order -> {
+                Map<String, Object> orderMap = new HashMap<>();
+                orderMap.put("id", order.getId());
+                orderMap.put("username", order.getUser().getUsername());
+                orderMap.put("productName", order.getProduct().getName());
+                orderMap.put("quantity", order.getQuantity());
+                orderMap.put("totalAmount", order.getTotalPrice());
+                orderMap.put("status", order.getStatus());
+                orderMap.put("createdAt", order.getCreatedAt());
+                orderMap.put("isFlashSale", order.getOrderType() == 2); // 2表示秒杀订单
+                return orderMap;
+            }).collect(Collectors.toList());
+
+            Map<String, Object> result = new HashMap<>();
+            result.put("orders", orders);
+            result.put("total", orderPage.getTotalElements());
+            result.put("totalPages", orderPage.getTotalPages());
+            result.put("currentPage", page);
+            result.put("size", size);
+
+            return result;
+
+        } catch (Exception e) {
+            log.error("获取订单列表失败", e);
+            Map<String, Object> result = new HashMap<>();
+            result.put("orders", new ArrayList<>());
+            result.put("total", 0L);
+            result.put("totalPages", 0);
+            result.put("currentPage", page);
+            result.put("size", size);
+            return result;
+        }
+    }
+
+    /**
+     * 获取商品列表
+     */
+    public Object getProducts(int page, int size, String keyword, Integer status) {
+        try {
+            Pageable pageable = PageRequest.of(page - 1, size, Sort.by(Sort.Direction.DESC, "createdAt"));
+            Page<Product> productPage;
+
+            if (keyword != null && !keyword.trim().isEmpty() && status != null) {
+                // 同时按关键词和状态筛选
+                productPage = productRepository.findByNameContainingAndStatus(keyword, status, pageable);
+            } else if (keyword != null && !keyword.trim().isEmpty()) {
+                productPage = productRepository.findByNameContaining(keyword, pageable);
+            } else if (status != null) {
+                productPage = productRepository.findByStatus(status, pageable);
+            } else {
+                productPage = productRepository.findAll(pageable);
+            }
+
+            // 转换为DTO
+            List<Map<String, Object>> productList = productPage.getContent().stream().map(product -> {
+                Map<String, Object> productMap = new HashMap<>();
+                productMap.put("id", product.getId());
+                productMap.put("name", product.getName());
+                productMap.put("price", product.getPrice());
+                productMap.put("stock", product.getStock());
+                productMap.put("status", product.getStatus());
+                productMap.put("description", product.getDescription());
+                productMap.put("imageUrl", product.getImageUrl());
+                productMap.put("createdAt", product.getCreatedAt());
+                return productMap;
+            }).collect(Collectors.toList());
+
+            Map<String, Object> result = new HashMap<>();
+            result.put("products", productList);
+            result.put("total", productPage.getTotalElements());
+            result.put("totalPages", productPage.getTotalPages());
+            result.put("currentPage", page);
+            result.put("size", size);
+
+            return result;
+        } catch (Exception e) {
+            log.error("获取商品列表失败", e);
+            Map<String, Object> result = new HashMap<>();
+            result.put("products", new ArrayList<>());
+            result.put("total", 0L);
+            result.put("totalPages", 0);
+            result.put("currentPage", page);
+            result.put("size", size);
+            return result;
+        }
+    }
+
+    /**
+     * 获取系统状态
+     */
+    public Object getSystemStatus() {
+        try {
+            Map<String, Object> systemStatus = new HashMap<>();
+
+            // 获取JVM内存使用情况
+            Runtime runtime = Runtime.getRuntime();
+            long totalMemory = runtime.totalMemory();
+            long freeMemory = runtime.freeMemory();
+            long usedMemory = totalMemory - freeMemory;
+            double memoryUsage = (double) usedMemory / totalMemory * 100;
+
+            // 获取可用处理器数量（模拟CPU使用率）
+            int availableProcessors = runtime.availableProcessors();
+            double cpuUsage = Math.random() * 30 + 20; // 模拟20-50%的CPU使用率
+
+            // 模拟磁盘使用率
+            double diskUsage = Math.random() * 40 + 10; // 模拟10-50%的磁盘使用率
+
+            systemStatus.put("status", "正常");
+            systemStatus.put("cpuUsage", Math.round(cpuUsage));
+            systemStatus.put("memoryUsage", Math.round(memoryUsage));
+            systemStatus.put("diskUsage", Math.round(diskUsage));
+            systemStatus.put("availableProcessors", availableProcessors);
+            systemStatus.put("totalMemory", totalMemory / 1024 / 1024 + "MB");
+            systemStatus.put("usedMemory", usedMemory / 1024 / 1024 + "MB");
+
+            return systemStatus;
+        } catch (Exception e) {
+            log.error("获取系统状态失败", e);
+            Map<String, Object> errorStatus = new HashMap<>();
+            errorStatus.put("status", "异常");
+            errorStatus.put("cpuUsage", 0);
+            errorStatus.put("memoryUsage", 0);
+            errorStatus.put("diskUsage", 0);
+            return errorStatus;
+        }
+    }
+
+    /**
+     * 获取Redis状态
+     */
+    public Object getRedisStatus() {
+        try {
+            List<Map<String, Object>> redisNodes = new ArrayList<>();
+
+            // 模拟Redis集群节点状态
+            String[] nodes = {
+                    "42.192.62.91:7000", "42.192.62.91:7001", "42.192.62.91:7002",
+                    "42.192.62.91:7003", "42.192.62.91:7004", "42.192.62.91:7005"
+            };
+
+            for (String node : nodes) {
+                Map<String, Object> nodeStatus = new HashMap<>();
+                nodeStatus.put("node", node);
+                nodeStatus.put("status", "正常");
+                nodeStatus.put("memory", (200 + (int) (Math.random() * 100)) + "MB");
+                nodeStatus.put("connections", 30 + (int) (Math.random() * 30));
+                redisNodes.add(nodeStatus);
+            }
+
+            return redisNodes;
+        } catch (Exception e) {
+            log.error("获取Redis状态失败", e);
+            return new ArrayList<>();
+        }
+    }
+
+    /**
+     * 获取单个商品详情
+     */
+    public Object getProduct(Long id) {
+        try {
+            Optional<Product> productOpt = productRepository.findById(id);
+            if (productOpt.isPresent()) {
+                Product product = productOpt.get();
+                Map<String, Object> productMap = new HashMap<>();
+                productMap.put("id", product.getId());
+                productMap.put("name", product.getName());
+                productMap.put("price", product.getPrice());
+                productMap.put("stock", product.getStock());
+                productMap.put("status", product.getStatus());
+                productMap.put("description", product.getDescription());
+                productMap.put("imageUrl", product.getImageUrl());
+                productMap.put("createdAt", product.getCreatedAt());
+                productMap.put("updatedAt", product.getUpdatedAt());
+
+                // 添加统计信息（模拟数据，实际应该从统计表获取）
+                productMap.put("totalSales", 0); // 总销量
+                productMap.put("totalRevenue", 0.0); // 总收入
+                productMap.put("viewCount", 0); // 浏览次数
+                productMap.put("rating", 0.0); // 平均评分
+
+                return productMap;
+            } else {
+                throw new RuntimeException("商品不存在");
+            }
+        } catch (Exception e) {
+            log.error("获取商品详情失败", e);
+            throw new RuntimeException("获取商品详情失败");
+        }
+    }
+
+    /**
+     * 更新商品
+     */
+    public void updateProduct(Long id, Map<String, Object> productData) {
+        try {
+            Optional<Product> productOpt = productRepository.findById(id);
+            if (productOpt.isPresent()) {
+                Product product = productOpt.get();
+
+                if (productData.containsKey("name")) {
+                    product.setName((String) productData.get("name"));
+                }
+                if (productData.containsKey("price")) {
+                    product.setPrice(new BigDecimal(productData.get("price").toString()));
+                }
+                if (productData.containsKey("stock")) {
+                    product.setStock(Integer.parseInt(productData.get("stock").toString()));
+                }
+                if (productData.containsKey("status")) {
+                    product.setStatus(Integer.parseInt(productData.get("status").toString()));
+                }
+                if (productData.containsKey("description")) {
+                    product.setDescription((String) productData.get("description"));
+                }
+                if (productData.containsKey("imageUrl")) {
+                    product.setImageUrl((String) productData.get("imageUrl"));
+                }
+
+                product.setUpdatedAt(LocalDateTime.now());
+                productRepository.save(product);
+            } else {
+                throw new RuntimeException("商品不存在");
+            }
+        } catch (Exception e) {
+            log.error("更新商品失败", e);
+            throw new RuntimeException("更新商品失败: " + e.getMessage());
+        }
+    }
+
+    /**
+     * 删除商品
+     */
+    public void deleteProduct(Long id) {
+        try {
+            if (productRepository.existsById(id)) {
+                productRepository.deleteById(id);
+            } else {
+                throw new RuntimeException("商品不存在");
+            }
+        } catch (Exception e) {
+            log.error("删除商品失败", e);
+            throw new RuntimeException("删除商品失败: " + e.getMessage());
+        }
+    }
+
+    /**
+     * 添加商品
+     */
+    public Object addProduct(Map<String, Object> productData) {
+        try {
+            Product product = new Product();
+            product.setName((String) productData.get("name"));
+            product.setPrice(new BigDecimal(productData.get("price").toString()));
+            product.setStock(Integer.parseInt(productData.get("stock").toString()));
+            product.setStatus(Integer.parseInt(productData.get("status").toString()));
+            product.setDescription((String) productData.get("description"));
+            product.setImageUrl((String) productData.get("imageUrl"));
+            product.setCreatedAt(LocalDateTime.now());
+            product.setUpdatedAt(LocalDateTime.now());
+
+            Product savedProduct = productRepository.save(product);
+
+            Map<String, Object> result = new HashMap<>();
+            result.put("id", savedProduct.getId());
+            result.put("name", savedProduct.getName());
+            result.put("price", savedProduct.getPrice());
+            result.put("stock", savedProduct.getStock());
+            result.put("status", savedProduct.getStatus());
+            result.put("description", savedProduct.getDescription());
+            result.put("imageUrl", savedProduct.getImageUrl());
+            result.put("createdAt", savedProduct.getCreatedAt());
+
+            return result;
+        } catch (Exception e) {
+            log.error("添加商品失败", e);
+            throw new RuntimeException("添加商品失败: " + e.getMessage());
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/CartService.java

@@ -0,0 +1,314 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.CartDTO;
+import com.org.flashsalesystem.dto.ProductDTO;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 购物车服务类
+ * 使用Redis Hash结构存储购物车数据
+ * 实现购物车的增删改查、持久化等功能
+ */
+@Service
+@Slf4j
+public class CartService {
+
+    private static final String CART_PREFIX = "user:";
+    private static final String CART_SUFFIX = ":cart";
+    @Autowired
+    private RedisService redisService;
+    @Autowired
+    private ProductService productService;
+    @Value("${flashsale.cart.expire-days:7}")
+    private int cartExpireDays;
+    @Value("${flashsale.cart.max-items:20}")
+    private int maxCartItems;
+
+    /**
+     * 添加商品到购物车
+     */
+    public CartDTO addToCart(Long userId, CartDTO.AddItemDTO addItemDTO) {
+        log.info("添加商品到购物车: 用户ID={}, 商品ID={}, 数量={}",
+                 userId, addItemDTO.getProductId(), addItemDTO.getQuantity());
+
+        String cartKey = buildCartKey(userId);
+
+        // 检查商品是否存在
+        ProductDTO product = productService.getProductById(addItemDTO.getProductId());
+        if (product == null) {
+            throw new RuntimeException("商品不存在");
+        }
+
+        // 检查商品是否上架
+        if (product.getStatus() != 1) {
+            throw new RuntimeException("商品已下架");
+        }
+
+        // 检查库存
+        Integer availableStock = productService.getProductStock(addItemDTO.getProductId());
+        if (availableStock < addItemDTO.getQuantity()) {
+            throw new RuntimeException("商品库存不足");
+        }
+
+        // 检查购物车商品种类数量限制
+        Long cartSize = redisService.hLen(cartKey);
+        if (cartSize != null && cartSize >= maxCartItems &&
+                !redisService.hExists(cartKey, addItemDTO.getProductId().toString())) {
+            throw new RuntimeException("购物车商品种类已达上限");
+        }
+
+        // 获取当前购物车中该商品的数量
+        String currentQuantityStr = (String) redisService.hGet(cartKey, addItemDTO.getProductId().toString());
+        int currentQuantity = currentQuantityStr != null ? Integer.parseInt(currentQuantityStr) : 0;
+
+        // 计算新的数量
+        int newQuantity = currentQuantity + addItemDTO.getQuantity();
+
+        // 再次检查库存
+        if (availableStock < newQuantity) {
+            throw new RuntimeException("商品库存不足，当前库存：" + availableStock);
+        }
+
+        // 更新购物车
+        redisService.hSet(cartKey, addItemDTO.getProductId().toString(), String.valueOf(newQuantity));
+
+        // 设置过期时间
+        redisService.expire(cartKey, cartExpireDays, TimeUnit.DAYS);
+
+        log.info("商品添加到购物车成功: 用户ID={}, 商品ID={}, 新数量={}",
+                 userId, addItemDTO.getProductId(), newQuantity);
+
+        return getCart(userId);
+    }
+
+    /**
+     * 更新购物车商品数量
+     */
+    public CartDTO updateQuantity(Long userId, CartDTO.UpdateQuantityDTO updateDTO) {
+        log.info("更新购物车商品数量: 用户ID={}, 商品ID={}, 数量={}",
+                 userId, updateDTO.getProductId(), updateDTO.getQuantity());
+
+        String cartKey = buildCartKey(userId);
+
+        // 检查商品是否在购物车中
+        if (!redisService.hExists(cartKey, updateDTO.getProductId().toString())) {
+            throw new RuntimeException("商品不在购物车中");
+        }
+
+        // 检查库存
+        Integer availableStock = productService.getProductStock(updateDTO.getProductId());
+        if (availableStock < updateDTO.getQuantity()) {
+            throw new RuntimeException("商品库存不足，当前库存：" + availableStock);
+        }
+
+        // 更新数量
+        redisService.hSet(cartKey, updateDTO.getProductId().toString(), String.valueOf(updateDTO.getQuantity()));
+
+        // 刷新过期时间
+        redisService.expire(cartKey, cartExpireDays, TimeUnit.DAYS);
+
+        log.info("购物车商品数量更新成功: 用户ID={}, 商品ID={}, 新数量={}",
+                 userId, updateDTO.getProductId(), updateDTO.getQuantity());
+
+        return getCart(userId);
+    }
+
+    /**
+     * 从购物车移除商品
+     */
+    public CartDTO removeFromCart(Long userId, CartDTO.RemoveItemDTO removeDTO) {
+        log.info("从购物车移除商品: 用户ID={}, 商品ID={}", userId, removeDTO.getProductId());
+
+        String cartKey = buildCartKey(userId);
+
+        // 移除商品
+        redisService.hDel(cartKey, removeDTO.getProductId().toString());
+
+        log.info("商品从购物车移除成功: 用户ID={}, 商品ID={}", userId, removeDTO.getProductId());
+
+        return getCart(userId);
+    }
+
+    /**
+     * 批量移除购物车商品
+     */
+    public CartDTO batchRemove(Long userId, List<Long> productIds) {
+        log.info("批量移除购物车商品: 用户ID={}, 商品IDs={}", userId, productIds);
+
+        String cartKey = buildCartKey(userId);
+
+        // 批量移除
+        String[] fields = productIds.stream()
+                                    .map(String::valueOf)
+                                    .toArray(String[]::new);
+        redisService.hDel(cartKey, (Object[]) fields);
+
+        log.info("批量移除购物车商品成功: 用户ID={}, 移除数量={}", userId, productIds.size());
+
+        return getCart(userId);
+    }
+
+    /**
+     * 清空购物车
+     */
+    public void clearCart(Long userId) {
+        log.info("清空购物车: 用户ID={}", userId);
+
+        String cartKey = buildCartKey(userId);
+        redisService.delete(cartKey);
+
+        log.info("购物车清空成功: 用户ID={}", userId);
+    }
+
+    /**
+     * 获取购物车信息
+     */
+    public CartDTO getCart(Long userId) {
+        String cartKey = buildCartKey(userId);
+        Map<Object, Object> cartData = redisService.hGetAll(cartKey);
+
+        if (cartData.isEmpty()) {
+            return new CartDTO(userId, new ArrayList<>(), BigDecimal.ZERO, 0);
+        }
+
+        List<CartDTO.CartItemDTO> items = new ArrayList<>();
+        BigDecimal totalPrice = BigDecimal.ZERO;
+        int totalQuantity = 0;
+
+        for (Map.Entry<Object, Object> entry : cartData.entrySet()) {
+            Long productId = Long.valueOf(entry.getKey().toString());
+            Integer quantity = Integer.valueOf(entry.getValue().toString());
+
+            // 获取商品信息
+            ProductDTO product = productService.getProductById(productId);
+            if (product == null || product.getStatus() != 1) {
+                // 商品不存在或已下架，从购物车中移除
+                redisService.hDel(cartKey, entry.getKey().toString());
+                continue;
+            }
+
+            // 获取当前库存
+            Integer currentStock = productService.getProductStock(productId);
+
+            // 如果购物车中的数量超过库存，调整为库存数量
+            if (quantity > currentStock) {
+                quantity = currentStock;
+                if (quantity > 0) {
+                    redisService.hSet(cartKey, productId.toString(), String.valueOf(quantity));
+                } else {
+                    redisService.hDel(cartKey, productId.toString());
+                    continue;
+                }
+            }
+
+            // 计算小计
+            BigDecimal subtotal = product.getPrice().multiply(BigDecimal.valueOf(quantity));
+
+            CartDTO.CartItemDTO item = new CartDTO.CartItemDTO();
+            item.setProductId(productId);
+            item.setProductName(product.getName());
+            item.setProductPrice(product.getPrice());
+            item.setProductImageUrl(product.getImageUrl());
+            item.setQuantity(quantity);
+            item.setSubtotal(subtotal);
+            item.setStock(currentStock);
+
+            items.add(item);
+            totalPrice = totalPrice.add(subtotal);
+            totalQuantity += quantity;
+        }
+
+        return new CartDTO(userId, items, totalPrice, totalQuantity);
+    }
+
+    /**
+     * 获取购物车商品数量
+     */
+    public int getCartItemCount(Long userId) {
+        String cartKey = buildCartKey(userId);
+        Map<Object, Object> cartData = redisService.hGetAll(cartKey);
+
+        return cartData.values().stream()
+                       .mapToInt(value -> Integer.parseInt(value.toString()))
+                       .sum();
+    }
+
+    /**
+     * 检查购物车中商品的库存状态
+     */
+    public Map<String, Object> checkCartStock(Long userId) {
+        CartDTO cart = getCart(userId);
+
+        List<Map<String, Object>> stockIssues = new ArrayList<>();
+        boolean hasStockIssue = false;
+
+        for (CartDTO.CartItemDTO item : cart.getItems()) {
+            if (item.getQuantity() > item.getStock()) {
+                hasStockIssue = true;
+                Map<String, Object> issue = new HashMap<>();
+                issue.put("productId", item.getProductId());
+                issue.put("productName", item.getProductName());
+                issue.put("requestedQuantity", item.getQuantity());
+                issue.put("availableStock", item.getStock());
+                stockIssues.add(issue);
+            }
+        }
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("hasStockIssue", hasStockIssue);
+        result.put("stockIssues", stockIssues);
+        result.put("cart", cart);
+
+        return result;
+    }
+
+    /**
+     * 同步购物车到数据库（可选功能）
+     */
+    public void syncCartToDatabase(Long userId) {
+        // 这里可以实现将购物车数据同步到数据库的逻辑
+        // 用于数据持久化和恢复
+        log.info("同步购物车到数据库: 用户ID={}", userId);
+    }
+
+    /**
+     * 从数据库恢复购物车（可选功能）
+     */
+    public void restoreCartFromDatabase(Long userId) {
+        // 这里可以实现从数据库恢复购物车数据的逻辑
+        log.info("从数据库恢复购物车: 用户ID={}", userId);
+    }
+
+    /**
+     * 构建购物车Redis键
+     */
+    private String buildCartKey(Long userId) {
+        return CART_PREFIX + userId + CART_SUFFIX;
+    }
+
+    /**
+     * 获取购物车过期时间
+     */
+    public Long getCartExpireTime(Long userId) {
+        String cartKey = buildCartKey(userId);
+        return redisService.getExpire(cartKey);
+    }
+
+    /**
+     * 刷新购物车过期时间
+     */
+    public void refreshCartExpireTime(Long userId) {
+        String cartKey = buildCartKey(userId);
+        redisService.expire(cartKey, cartExpireDays, TimeUnit.DAYS);
+    }
+}

src/main/java/com/org/flashsalesystem/service/DistributedLockService.java

@@ -0,0 +1,230 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+/**
+ * 分布式锁服务
+ * 基于Redis实现分布式锁，防止并发问题
+ */
+@Service
+@Slf4j
+public class DistributedLockService {
+
+    private static final String LOCK_PREFIX = "lock:";
+    private static final int DEFAULT_EXPIRE_SECONDS = 30;
+    private static final int DEFAULT_RETRY_TIMES = 3;
+    private static final long DEFAULT_RETRY_INTERVAL_MS = 100;
+    @Autowired
+    private RedisService redisService;
+
+    /**
+     * 获取分布式锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 锁的值（用于释放锁时验证）
+     */
+    public String acquireLock(String lockKey) {
+        return acquireLock(lockKey, DEFAULT_EXPIRE_SECONDS);
+    }
+
+    /**
+     * 获取分布式锁
+     *
+     * @param lockKey       锁的键
+     * @param expireSeconds 锁的过期时间（秒）
+     *
+     * @return 锁的值（用于释放锁时验证）
+     */
+    public String acquireLock(String lockKey, int expireSeconds) {
+        return acquireLock(lockKey, expireSeconds, DEFAULT_RETRY_TIMES, DEFAULT_RETRY_INTERVAL_MS);
+    }
+
+    /**
+     * 获取分布式锁（带重试机制）
+     *
+     * @param lockKey         锁的键
+     * @param expireSeconds   锁的过期时间（秒）
+     * @param retryTimes      重试次数
+     * @param retryIntervalMs 重试间隔（毫秒）
+     *
+     * @return 锁的值（用于释放锁时验证），获取失败返回null
+     */
+    public String acquireLock(String lockKey, int expireSeconds, int retryTimes, long retryIntervalMs) {
+        String fullLockKey = LOCK_PREFIX + lockKey;
+        String lockValue = UUID.randomUUID().toString();
+
+        for (int i = 0; i <= retryTimes; i++) {
+            try {
+                // 使用Lua脚本原子性地设置锁和过期时间
+                String result = redisService.executeLockScript(fullLockKey, lockValue, expireSeconds);
+                if ("OK".equals(result)) {
+                    log.debug("成功获取分布式锁: {}, 值: {}", fullLockKey, lockValue);
+                    return lockValue;
+                }
+
+                if (i < retryTimes) {
+                    Thread.sleep(retryIntervalMs);
+                }
+            } catch (Exception e) {
+                log.error("获取分布式锁异常: {}", fullLockKey, e);
+                if (i < retryTimes) {
+                    try {
+                        Thread.sleep(retryIntervalMs);
+                    } catch (InterruptedException ie) {
+                        Thread.currentThread().interrupt();
+                        break;
+                    }
+                }
+            }
+        }
+
+        log.warn("获取分布式锁失败: {}", fullLockKey);
+        return null;
+    }
+
+    /**
+     * 释放分布式锁
+     *
+     * @param lockKey   锁的键
+     * @param lockValue 锁的值
+     *
+     * @return 是否释放成功
+     */
+    public boolean releaseLock(String lockKey, String lockValue) {
+        if (lockValue == null) {
+            return false;
+        }
+
+        String fullLockKey = LOCK_PREFIX + lockKey;
+
+        try {
+            // 使用Lua脚本原子性地检查锁的值并删除
+            Long result = redisService.executeUnlockScript(fullLockKey, lockValue);
+            boolean success = result != null && result > 0;
+
+            if (success) {
+                log.debug("成功释放分布式锁: {}, 值: {}", fullLockKey, lockValue);
+            } else {
+                log.warn("释放分布式锁失败，锁可能已过期或被其他线程释放: {}, 值: {}", fullLockKey, lockValue);
+            }
+
+            return success;
+        } catch (Exception e) {
+            log.error("释放分布式锁异常: {}, 值: {}", fullLockKey, lockValue, e);
+            return false;
+        }
+    }
+
+    /**
+     * 尝试获取锁并执行业务逻辑
+     *
+     * @param lockKey 锁的键
+     * @param task    要执行的任务
+     *
+     * @return 是否执行成功
+     */
+    public boolean executeWithLock(String lockKey, Runnable task) {
+        return executeWithLock(lockKey, DEFAULT_EXPIRE_SECONDS, task);
+    }
+
+    /**
+     * 尝试获取锁并执行业务逻辑
+     *
+     * @param lockKey       锁的键
+     * @param expireSeconds 锁的过期时间（秒）
+     * @param task          要执行的任务
+     *
+     * @return 是否执行成功
+     */
+    public boolean executeWithLock(String lockKey, int expireSeconds, Runnable task) {
+        String lockValue = acquireLock(lockKey, expireSeconds);
+        if (lockValue == null) {
+            return false;
+        }
+
+        try {
+            task.run();
+            return true;
+        } catch (Exception e) {
+            log.error("执行锁定任务异常: {}", lockKey, e);
+            throw e;
+        } finally {
+            releaseLock(lockKey, lockValue);
+        }
+    }
+
+    /**
+     * 尝试获取锁并执行有返回值的业务逻辑
+     *
+     * @param lockKey  锁的键
+     * @param supplier 要执行的任务
+     * @param <T>      返回值类型
+     *
+     * @return 执行结果，获取锁失败返回null
+     */
+    public <T> T executeWithLock(String lockKey, java.util.function.Supplier<T> supplier) {
+        return executeWithLock(lockKey, DEFAULT_EXPIRE_SECONDS, supplier);
+    }
+
+    /**
+     * 尝试获取锁并执行有返回值的业务逻辑
+     *
+     * @param lockKey       锁的键
+     * @param expireSeconds 锁的过期时间（秒）
+     * @param supplier      要执行的任务
+     * @param <T>           返回值类型
+     *
+     * @return 执行结果，获取锁失败返回null
+     */
+    public <T> T executeWithLock(String lockKey, int expireSeconds, java.util.function.Supplier<T> supplier) {
+        String lockValue = acquireLock(lockKey, expireSeconds);
+        if (lockValue == null) {
+            return null;
+        }
+
+        try {
+            return supplier.get();
+        } catch (Exception e) {
+            log.error("执行锁定任务异常: {}", lockKey, e);
+            throw e;
+        } finally {
+            releaseLock(lockKey, lockValue);
+        }
+    }
+
+    /**
+     * 检查锁是否存在
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 锁是否存在
+     */
+    public boolean isLocked(String lockKey) {
+        String fullLockKey = LOCK_PREFIX + lockKey;
+        return redisService.exists(fullLockKey);
+    }
+
+    /**
+     * 强制释放锁（谨慎使用）
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 是否释放成功
+     */
+    public boolean forceReleaseLock(String lockKey) {
+        String fullLockKey = LOCK_PREFIX + lockKey;
+        try {
+            Boolean result = redisService.delete(fullLockKey);
+            log.warn("强制释放分布式锁: {}, 结果: {}", fullLockKey, result);
+            return result != null && result;
+        } catch (Exception e) {
+            log.error("强制释放分布式锁异常: {}", fullLockKey, e);
+            return false;
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/FlashSaleService.java

@@ -0,0 +1,688 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.FlashSaleDTO;
+import com.org.flashsalesystem.entity.FlashSale;
+import com.org.flashsalesystem.entity.Order;
+import com.org.flashsalesystem.entity.Product;
+import com.org.flashsalesystem.repository.FlashSaleRepository;
+import com.org.flashsalesystem.repository.OrderRepository;
+import com.org.flashsalesystem.repository.ProductRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+/**
+ * 秒杀服务类
+ * 实现秒杀活动管理、库存控制、分布式锁等核心功能
+ */
+@Service
+@Slf4j
+public class FlashSaleService {
+
+    private static final String FLASH_SALE_CACHE_PREFIX = "flashsale:";
+    private static final String FLASH_SALE_STOCK_PREFIX = "flashsale_stock:";
+    private static final String FLASH_SALE_LOCK_PREFIX = "flashsale_lock:";
+    private static final String FLASH_SALE_SUCCESS_USERS_PREFIX = "flashsale_success:";
+    private static final String ACTIVE_FLASH_SALES = "active_flashsales";
+    @Autowired
+    private FlashSaleRepository flashSaleRepository;
+    @Autowired
+    private ProductRepository productRepository;
+    @Autowired
+    private OrderRepository orderRepository;
+    @Autowired
+    private RedisService redisService;
+    @Autowired
+    private DistributedLockService lockService;
+    @Autowired
+    private RedissonLockService redissonLockService;
+    @Autowired
+    private RateLimitService rateLimitService;
+    @Autowired
+    private ProductService productService;
+    @Value("${flashsale.cache.flashsale-expire-minutes:10}")
+    private int flashSaleCacheExpireMinutes;
+    @Value("${flashsale.seckill.max-quantity-per-user:1}")
+    private int maxQuantityPerUser;
+
+    /**
+     * 创建秒杀活动
+     */
+    @Transactional
+    public FlashSaleDTO createFlashSale(FlashSaleDTO.CreateDTO createDTO) {
+        log.info("创建秒杀活动: 商品ID={}, 秒杀价格={}, 库存={}",
+                 createDTO.getProductId(), createDTO.getFlashPrice(), createDTO.getFlashStock());
+
+        // 验证商品是否存在
+        Optional<Product> productOpt = productRepository.findById(createDTO.getProductId());
+        if (!productOpt.isPresent()) {
+            throw new RuntimeException("商品不存在");
+        }
+
+        Product product = productOpt.get();
+        if (product.getStatus() != 1) {
+            throw new RuntimeException("商品未上架");
+        }
+
+        // 验证时间
+        if (createDTO.getStartTime().isAfter(createDTO.getEndTime())) {
+            throw new RuntimeException("开始时间不能晚于结束时间");
+        }
+
+        if (createDTO.getStartTime().isBefore(LocalDateTime.now())) {
+            throw new RuntimeException("开始时间不能早于当前时间");
+        }
+
+        // 检查是否已有该商品的秒杀活动
+        Optional<FlashSale> existingFlashSale = flashSaleRepository.findByProductId(createDTO.getProductId());
+        if (existingFlashSale.isPresent()) {
+            throw new RuntimeException("该商品已有秒杀活动");
+        }
+
+        // 创建秒杀活动
+        FlashSale flashSale = new FlashSale();
+        BeanUtils.copyProperties(createDTO, flashSale);
+        flashSale.setStatus(1); // 未开始
+
+        flashSale = flashSaleRepository.save(flashSale);
+
+        // 缓存秒杀活动信息
+        cacheFlashSaleInfo(flashSale, product);
+
+        // 预热库存到Redis
+        String stockKey = FLASH_SALE_STOCK_PREFIX + flashSale.getId();
+        redisService.set(stockKey, flashSale.getFlashStock());
+
+        log.info("秒杀活动创建成功: ID={}", flashSale.getId());
+
+        return buildFlashSaleDTO(flashSale, product);
+    }
+
+    /**
+     * 参与秒杀
+     */
+    @Transactional
+    public FlashSaleDTO.ResultDTO participateFlashSale(Long userId, FlashSaleDTO.ParticipateDTO participateDTO) {
+        log.info("用户参与秒杀: 用户ID={}, 秒杀ID={}, 数量={}",
+                 userId, participateDTO.getFlashSaleId(), participateDTO.getQuantity());
+
+        // 限流检查
+        if (!rateLimitService.checkFlashSaleRateLimit(userId)) {
+            return createFailResult("请求过于频繁，请稍后再试");
+        }
+
+        // 获取秒杀活动信息
+        FlashSale flashSale = getFlashSaleById(participateDTO.getFlashSaleId());
+        if (flashSale == null) {
+            return createFailResult("秒杀活动不存在");
+        }
+
+        // 检查活动状态
+        if (!flashSale.isActive()) {
+            return createFailResult("秒杀活动未开始或已结束");
+        }
+
+        // 检查用户是否已经参与过
+        String successUsersKey = FLASH_SALE_SUCCESS_USERS_PREFIX + flashSale.getId();
+        if (redisService.sIsMember(successUsersKey, userId)) {
+            return createFailResult("您已经参与过该秒杀活动");
+        }
+
+        // 检查数据库中是否已有订单
+        if (orderRepository.existsFlashSaleOrder(userId, flashSale.getProductId())) {
+            return createFailResult("您已经购买过该商品");
+        }
+
+        // 检查购买数量限制
+        if (participateDTO.getQuantity() > maxQuantityPerUser) {
+            return createFailResult("超过单用户最大购买数量限制");
+        }
+
+        // 使用Redisson分布式锁防止超卖
+        String lockKey = FLASH_SALE_LOCK_PREFIX + flashSale.getId();
+
+        if (!redissonLockService.tryLock(lockKey, 3, 10)) { // 等待3秒，持有10秒
+            return createFailResult("系统繁忙，请稍后再试");
+        }
+
+        try {
+            // 使用Lua脚本原子性扣减库存
+            String stockKey = FLASH_SALE_STOCK_PREFIX + flashSale.getId();
+            Long remainingStock = redisService.executeFlashSaleScript(stockKey, participateDTO.getQuantity());
+
+            if (remainingStock < 0) {
+                if (remainingStock == -1) {
+                    return createFailResult("秒杀活动库存信息异常");
+                } else {
+                    return createFailResult("商品已售罄");
+                }
+            }
+
+            // 创建订单
+            Order order = createFlashSaleOrder(userId, flashSale, participateDTO);
+
+            // 添加到成功用户集合
+            redisService.sAdd(successUsersKey, userId);
+            redisService.expire(successUsersKey, 24, TimeUnit.HOURS);
+
+            // 更新数据库库存
+            flashSaleRepository.updateFlashStock(flashSale.getId(), participateDTO.getQuantity());
+
+            // 发布秒杀成功消息
+            publishFlashSaleResult(userId, flashSale, order, true);
+
+            // 更新商品销量排行榜
+            productService.increaseSalesRank(flashSale.getProductId(), participateDTO.getQuantity());
+
+            log.info("秒杀成功: 用户ID={}, 订单ID={}, 剩余库存={}", userId, order.getId(), remainingStock);
+
+            return createSuccessResult(order, flashSale);
+
+        } catch (Exception e) {
+            log.error("秒杀处理异常: 用户ID={}, 秒杀ID={}", userId, participateDTO.getFlashSaleId(), e);
+            return createFailResult("秒杀失败，请重试");
+        } finally {
+            redissonLockService.unlock(lockKey);
+        }
+    }
+
+    /**
+     * 获取秒杀活动列表
+     */
+    public Map<String, Object> getFlashSaleList(FlashSaleDTO.QueryDTO queryDTO) {
+        // 验证排序字段
+        String sortBy = validateSortField(queryDTO.getSortBy());
+
+        // 构建分页和排序
+        Sort sort = Sort.by(Sort.Direction.fromString(queryDTO.getSortDirection()), sortBy);
+        Pageable pageable = PageRequest.of(queryDTO.getPage(), queryDTO.getSize(), sort);
+
+        Page<FlashSale> flashSalePage;
+        LocalDateTime now = LocalDateTime.now();
+
+        // 如果指定了商品ID，按商品ID查询
+        if (queryDTO.getProductId() != null) {
+            if (queryDTO.getStatus() != null) {
+                switch (queryDTO.getStatus()) {
+                    case 1: // 未开始
+                        flashSalePage = flashSaleRepository.findByProductIdAndStatus(queryDTO.getProductId(), 1,
+                                                                                     pageable);
+                        break;
+                    case 2: // 进行中
+                        flashSalePage = flashSaleRepository.findByProductIdAndStatus(queryDTO.getProductId(), 2,
+                                                                                     pageable);
+                        break;
+                    case 3: // 已结束
+                        flashSalePage = flashSaleRepository.findByProductIdAndStatus(queryDTO.getProductId(), 3,
+                                                                                     pageable);
+                        break;
+                    default:
+                        flashSalePage = flashSaleRepository.findByProductId(queryDTO.getProductId(), pageable);
+                        break;
+                }
+            } else {
+                flashSalePage = flashSaleRepository.findByProductId(queryDTO.getProductId(), pageable);
+            }
+        } else {
+            // 根据状态查询
+            if (queryDTO.getStatus() != null) {
+                switch (queryDTO.getStatus()) {
+                    case 1: // 未开始
+                        flashSalePage = flashSaleRepository.findUpcomingFlashSales(now, pageable);
+                        break;
+                    case 2: // 进行中
+                        flashSalePage = flashSaleRepository.findActiveFlashSales(now, pageable);
+                        break;
+                    case 3: // 已结束
+                        flashSalePage = flashSaleRepository.findEndedFlashSales(now, pageable);
+                        break;
+                    default:
+                        flashSalePage = flashSaleRepository.findAll(pageable);
+                }
+            } else {
+                flashSalePage = flashSaleRepository.findAll(pageable);
+            }
+        }
+
+        // 转换为DTO
+        List<FlashSaleDTO> flashSaleDTOs = flashSalePage.getContent().stream()
+                                                        .map(flashSale -> {
+                                                            Product product = productRepository.findById(
+                                                                    flashSale.getProductId()).orElse(null);
+                                                            return buildFlashSaleDTO(flashSale, product);
+                                                        })
+                                                        .collect(Collectors.toList());
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("content", flashSaleDTOs);
+        result.put("totalElements", flashSalePage.getTotalElements());
+        result.put("totalPages", flashSalePage.getTotalPages());
+        result.put("currentPage", flashSalePage.getNumber());
+        result.put("size", flashSalePage.getSize());
+
+        return result;
+    }
+
+    /**
+     * 获取正在进行的秒杀活动
+     */
+    public List<FlashSaleDTO> getActiveFlashSales() {
+        // 尝试从缓存获取
+        List<Object> cachedFlashSales = redisService.lRange(ACTIVE_FLASH_SALES, 0, -1);
+        if (!cachedFlashSales.isEmpty()) {
+            return cachedFlashSales.stream()
+                                   .map(obj -> (FlashSaleDTO) obj)
+                                   .collect(Collectors.toList());
+        }
+
+        // 从数据库获取
+        LocalDateTime now = LocalDateTime.now();
+        List<FlashSale> activeFlashSales = flashSaleRepository.findActiveFlashSalesWithStock(now);
+
+        List<FlashSaleDTO> flashSaleDTOs = activeFlashSales.stream()
+                                                           .map(flashSale -> {
+                                                               Product product = productRepository.findById(
+                                                                       flashSale.getProductId()).orElse(null);
+                                                               return buildFlashSaleDTO(flashSale, product);
+                                                           })
+                                                           .collect(Collectors.toList());
+
+        // 缓存结果
+        if (!flashSaleDTOs.isEmpty()) {
+            redisService.delete(ACTIVE_FLASH_SALES);
+            redisService.rPush(ACTIVE_FLASH_SALES, flashSaleDTOs.toArray());
+            redisService.expire(ACTIVE_FLASH_SALES, 5, TimeUnit.MINUTES);
+        }
+
+        return flashSaleDTOs;
+    }
+
+    /**
+     * 根据ID获取秒杀活动
+     */
+    public FlashSaleDTO getFlashSaleDTOById(Long flashSaleId) {
+        FlashSale flashSale = getFlashSaleById(flashSaleId);
+        if (flashSale == null) {
+            return null;
+        }
+
+        Product product = productRepository.findById(flashSale.getProductId()).orElse(null);
+        return buildFlashSaleDTO(flashSale, product);
+    }
+
+    /**
+     * 预热秒杀活动
+     */
+    public void preloadFlashSale(Long flashSaleId) {
+        log.info("预热秒杀活动: {}", flashSaleId);
+
+        Optional<FlashSale> flashSaleOpt = flashSaleRepository.findById(flashSaleId);
+        if (!flashSaleOpt.isPresent()) {
+            log.warn("秒杀活动不存在: {}", flashSaleId);
+            return;
+        }
+
+        FlashSale flashSale = flashSaleOpt.get();
+        Product product = productRepository.findById(flashSale.getProductId()).orElse(null);
+
+        // 缓存秒杀活动信息
+        cacheFlashSaleInfo(flashSale, product);
+
+        // 预热库存
+        String stockKey = FLASH_SALE_STOCK_PREFIX + flashSaleId;
+        redisService.set(stockKey, flashSale.getFlashStock());
+
+        log.info("秒杀活动预热完成: {}", flashSaleId);
+    }
+
+    /**
+     * 获取秒杀活动剩余库存
+     */
+    public Integer getFlashSaleStock(Long flashSaleId) {
+        String stockKey = FLASH_SALE_STOCK_PREFIX + flashSaleId;
+        Object stock = redisService.get(stockKey);
+        return stock != null ? Integer.valueOf(stock.toString()) : 0;
+    }
+
+    /**
+     * 更新秒杀活动
+     */
+    @Transactional
+    public FlashSaleDTO updateFlashSale(Long flashSaleId, FlashSaleDTO.UpdateDTO updateDTO) {
+        log.info("更新秒杀活动: ID={}", flashSaleId);
+
+        // 获取现有秒杀活动
+        Optional<FlashSale> flashSaleOpt = flashSaleRepository.findById(flashSaleId);
+        if (!flashSaleOpt.isPresent()) {
+            throw new RuntimeException("秒杀活动不存在");
+        }
+
+        FlashSale flashSale = flashSaleOpt.get();
+
+        // 检查活动状态，只有未开始的活动才能修改
+        if (flashSale.getStatus() != 1) {
+            throw new RuntimeException("只有未开始的秒杀活动才能修改");
+        }
+
+        // 更新字段
+        if (updateDTO.getFlashPrice() != null) {
+            flashSale.setFlashPrice(updateDTO.getFlashPrice());
+        }
+        if (updateDTO.getFlashStock() != null) {
+            flashSale.setFlashStock(updateDTO.getFlashStock());
+        }
+        if (updateDTO.getStartTime() != null) {
+            if (updateDTO.getStartTime().isBefore(LocalDateTime.now())) {
+                throw new RuntimeException("开始时间不能早于当前时间");
+            }
+            flashSale.setStartTime(updateDTO.getStartTime());
+        }
+        if (updateDTO.getEndTime() != null) {
+            flashSale.setEndTime(updateDTO.getEndTime());
+        }
+        if (updateDTO.getStatus() != null) {
+            flashSale.setStatus(updateDTO.getStatus());
+        }
+
+        // 验证时间
+        if (flashSale.getStartTime().isAfter(flashSale.getEndTime())) {
+            throw new RuntimeException("开始时间不能晚于结束时间");
+        }
+
+        // 保存更新
+        flashSale = flashSaleRepository.save(flashSale);
+
+        // 更新缓存
+        Product product = productRepository.findById(flashSale.getProductId()).orElse(null);
+        cacheFlashSaleInfo(flashSale, product);
+
+        // 更新Redis库存
+        String stockKey = FLASH_SALE_STOCK_PREFIX + flashSale.getId();
+        redisService.set(stockKey, flashSale.getFlashStock());
+
+        log.info("秒杀活动更新成功: ID={}", flashSale.getId());
+
+        return buildFlashSaleDTO(flashSale, product);
+    }
+
+    /**
+     * 删除秒杀活动
+     */
+    @Transactional
+    public boolean deleteFlashSale(Long flashSaleId) {
+        log.info("删除秒杀活动: ID={}", flashSaleId);
+
+        // 获取现有秒杀活动
+        Optional<FlashSale> flashSaleOpt = flashSaleRepository.findById(flashSaleId);
+        if (!flashSaleOpt.isPresent()) {
+            throw new RuntimeException("秒杀活动不存在");
+        }
+
+        FlashSale flashSale = flashSaleOpt.get();
+
+        // 检查活动状态，只有未开始的活动才能删除
+        if (flashSale.getStatus() != 1) {
+            throw new RuntimeException("只有未开始的秒杀活动才能删除");
+        }
+
+        // 检查是否有相关订单
+        if (orderRepository.existsFlashSaleOrder(null, flashSale.getProductId())) {
+            throw new RuntimeException("该秒杀活动已有订单，无法删除");
+        }
+
+        // 删除秒杀活动
+        flashSaleRepository.deleteById(flashSaleId);
+
+        // 清除相关缓存
+        clearFlashSaleCache(flashSaleId);
+
+        log.info("秒杀活动删除成功: ID={}", flashSaleId);
+
+        return true;
+    }
+
+    /**
+     * 更新秒杀活动状态
+     */
+    @Transactional
+    public void updateFlashSaleStatus() {
+        LocalDateTime now = LocalDateTime.now();
+
+        // 更新未开始的活动为进行中
+        List<FlashSale> upcomingFlashSales = flashSaleRepository.findUpcomingFlashSales(now);
+        for (FlashSale flashSale : upcomingFlashSales) {
+            if (flashSale.isStarted() && !flashSale.isEnded()) {
+                flashSaleRepository.updateStatus(flashSale.getId(), 2);
+                log.info("秒杀活动开始: {}", flashSale.getId());
+            }
+        }
+
+        // 更新进行中的活动为已结束
+        List<FlashSale> activeFlashSales = flashSaleRepository.findActiveFlashSales(now);
+        for (FlashSale flashSale : activeFlashSales) {
+            if (flashSale.isEnded()) {
+                flashSaleRepository.updateStatus(flashSale.getId(), 3);
+                log.info("秒杀活动结束: {}", flashSale.getId());
+
+                // 清除相关缓存
+                clearFlashSaleCache(flashSale.getId());
+            }
+        }
+    }
+
+    /**
+     * 根据ID获取秒杀活动实体
+     */
+    private FlashSale getFlashSaleById(Long flashSaleId) {
+        // 先从缓存获取
+        String cacheKey = FLASH_SALE_CACHE_PREFIX + flashSaleId;
+        Map<Object, Object> flashSaleMap = redisService.hGetAll(cacheKey);
+
+        if (!flashSaleMap.isEmpty()) {
+            FlashSale flashSale = new FlashSale();
+            flashSale.setId(flashSaleId);
+            flashSale.setProductId(Long.valueOf((String) flashSaleMap.get("productId")));
+            flashSale.setFlashPrice(new BigDecimal((String) flashSaleMap.get("flashPrice")));
+            flashSale.setFlashStock(Integer.valueOf((String) flashSaleMap.get("flashStock")));
+            flashSale.setStartTime(LocalDateTime.parse((String) flashSaleMap.get("startTime")));
+            flashSale.setEndTime(LocalDateTime.parse((String) flashSaleMap.get("endTime")));
+            flashSale.setStatus(Integer.valueOf((String) flashSaleMap.get("status")));
+            return flashSale;
+        }
+
+        // 缓存中没有，从数据库获取
+        Optional<FlashSale> flashSaleOpt = flashSaleRepository.findById(flashSaleId);
+        if (flashSaleOpt.isPresent()) {
+            FlashSale flashSale = flashSaleOpt.get();
+            Product product = productRepository.findById(flashSale.getProductId()).orElse(null);
+            cacheFlashSaleInfo(flashSale, product);
+            return flashSale;
+        }
+
+        return null;
+    }
+
+    /**
+     * 缓存秒杀活动信息
+     */
+    private void cacheFlashSaleInfo(FlashSale flashSale, Product product) {
+        String cacheKey = FLASH_SALE_CACHE_PREFIX + flashSale.getId();
+        Map<String, Object> flashSaleMap = new HashMap<>();
+        flashSaleMap.put("productId", flashSale.getProductId().toString());
+        flashSaleMap.put("flashPrice", flashSale.getFlashPrice().toString());
+        flashSaleMap.put("flashStock", flashSale.getFlashStock().toString());
+        flashSaleMap.put("startTime", flashSale.getStartTime().toString());
+        flashSaleMap.put("endTime", flashSale.getEndTime().toString());
+        flashSaleMap.put("status", flashSale.getStatus().toString());
+
+        if (product != null) {
+            flashSaleMap.put("productName", product.getName());
+            flashSaleMap.put("productPrice", product.getPrice().toString());
+            flashSaleMap.put("productImageUrl", product.getImageUrl());
+        }
+
+        redisService.hMSet(cacheKey, flashSaleMap);
+        redisService.expire(cacheKey, flashSaleCacheExpireMinutes, TimeUnit.MINUTES);
+    }
+
+    /**
+     * 构建秒杀活动DTO
+     */
+    private FlashSaleDTO buildFlashSaleDTO(FlashSale flashSale, Product product) {
+        FlashSaleDTO dto = new FlashSaleDTO();
+        BeanUtils.copyProperties(flashSale, dto);
+
+        if (product != null) {
+            dto.setProductName(product.getName());
+            dto.setProductImageUrl(product.getImageUrl());
+            dto.setOriginalPrice(product.getPrice());
+        }
+
+        // 获取剩余库存
+        Integer remainingStock = getFlashSaleStock(flashSale.getId());
+        dto.setRemainingStock(remainingStock);
+
+        // 设置状态描述
+        LocalDateTime now = LocalDateTime.now();
+        if (flashSale.getStartTime().isAfter(now)) {
+            dto.setStatusDescription("未开始");
+            dto.setCanParticipate(false);
+            dto.setTimeToStart(
+                    flashSale.getStartTime().toEpochSecond(ZoneOffset.of("+8")) * 1000 - System.currentTimeMillis());
+        } else if (flashSale.getEndTime().isBefore(now)) {
+            dto.setStatusDescription("已结束");
+            dto.setCanParticipate(false);
+            dto.setTimeToEnd(0L);
+        } else {
+            dto.setStatusDescription("进行中");
+            dto.setCanParticipate(remainingStock > 0);
+            dto.setTimeToEnd(
+                    flashSale.getEndTime().toEpochSecond(ZoneOffset.of("+8")) * 1000 - System.currentTimeMillis());
+        }
+
+        return dto;
+    }
+
+    /**
+     * 验证排序字段
+     */
+    private String validateSortField(String sortBy) {
+        if (sortBy == null || sortBy.trim().isEmpty()) {
+            return "startTime"; // 默认排序字段
+        }
+
+        // 允许的排序字段列表
+        switch (sortBy.toLowerCase()) {
+            case "starttime":
+            case "start_time":
+                return "startTime";
+            case "endtime":
+            case "end_time":
+                return "endTime";
+            case "createdat":
+            case "created_at":
+                return "createdAt";
+            case "id":
+                return "id";
+            case "flashprice":
+            case "flash_price":
+                return "flashPrice";
+            case "flashstock":
+            case "flash_stock":
+                return "flashStock";
+            case "status":
+                return "status";
+            default:
+                log.warn("无效的排序字段: {}, 使用默认排序字段: startTime", sortBy);
+                return "startTime";
+        }
+    }
+
+    /**
+     * 创建秒杀订单
+     */
+    private Order createFlashSaleOrder(Long userId, FlashSale flashSale, FlashSaleDTO.ParticipateDTO participateDTO) {
+        Order order = new Order();
+        order.setUserId(userId);
+        order.setProductId(flashSale.getProductId());
+        order.setQuantity(participateDTO.getQuantity());
+        order.setTotalPrice(flashSale.getFlashPrice().multiply(BigDecimal.valueOf(participateDTO.getQuantity())));
+        order.setStatus(1); // 待支付
+        order.setOrderType(2); // 秒杀订单
+
+        return orderRepository.save(order);
+    }
+
+    /**
+     * 发布秒杀结果消息
+     */
+    private void publishFlashSaleResult(Long userId, FlashSale flashSale, Order order, boolean success) {
+        Map<String, Object> message = new HashMap<>();
+        message.put("userId", userId);
+        message.put("flashSaleId", flashSale.getId());
+        message.put("productId", flashSale.getProductId());
+        message.put("success", success);
+        message.put("orderId", order != null ? order.getId() : null);
+        message.put("timestamp", System.currentTimeMillis());
+
+        redisService.publish("flashsale:result", message);
+    }
+
+    /**
+     * 创建成功结果
+     */
+    private FlashSaleDTO.ResultDTO createSuccessResult(Order order, FlashSale flashSale) {
+        FlashSaleDTO.ResultDTO result = new FlashSaleDTO.ResultDTO();
+        result.setSuccess(true);
+        result.setMessage("秒杀成功");
+        result.setOrderId(order.getId());
+        result.setFlashSaleId(flashSale.getId());
+        result.setProductId(flashSale.getProductId());
+        result.setQuantity(order.getQuantity());
+        result.setTotalPrice(order.getTotalPrice());
+        result.setOrderTime(order.getCreatedAt());
+
+        return result;
+    }
+
+    /**
+     * 创建失败结果
+     */
+    private FlashSaleDTO.ResultDTO createFailResult(String message) {
+        FlashSaleDTO.ResultDTO result = new FlashSaleDTO.ResultDTO();
+        result.setSuccess(false);
+        result.setMessage(message);
+        return result;
+    }
+
+    /**
+     * 清除秒杀活动缓存
+     */
+    private void clearFlashSaleCache(Long flashSaleId) {
+        String cacheKey = FLASH_SALE_CACHE_PREFIX + flashSaleId;
+        String stockKey = FLASH_SALE_STOCK_PREFIX + flashSaleId;
+        String successUsersKey = FLASH_SALE_SUCCESS_USERS_PREFIX + flashSaleId;
+
+        redisService.delete(cacheKey);
+        redisService.delete(stockKey);
+        redisService.delete(successUsersKey);
+        redisService.delete(ACTIVE_FLASH_SALES);
+    }
+}

src/main/java/com/org/flashsalesystem/service/MessageListenerService.java

@@ -0,0 +1,284 @@
+package com.org.flashsalesystem.service;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.connection.Message;
+import org.springframework.data.redis.connection.MessageListener;
+import org.springframework.data.redis.listener.ChannelTopic;
+import org.springframework.data.redis.listener.RedisMessageListenerContainer;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.PostConstruct;
+import java.util.Map;
+
+/**
+ * Redis消息监听服务
+ * 实现Redis Pub/Sub消息队列功能
+ */
+@Service
+@Slf4j
+public class MessageListenerService {
+
+    @Autowired
+    private RedisMessageListenerContainer redisMessageListenerContainer;
+
+    @Autowired
+    private ObjectMapper objectMapper;
+
+    /**
+     * 初始化消息监听器
+     */
+    @PostConstruct
+    public void initMessageListeners() {
+        // 订单状态变更监听
+        redisMessageListenerContainer.addMessageListener(
+                new OrderStatusChangeListener(),
+                new ChannelTopic("order:status:change")
+                                                        );
+
+        // 库存变更监听
+        redisMessageListenerContainer.addMessageListener(
+                new StockChangeListener(),
+                new ChannelTopic("stock:change")
+                                                        );
+
+        // 秒杀结果监听
+        redisMessageListenerContainer.addMessageListener(
+                new FlashSaleResultListener(),
+                new ChannelTopic("flashsale:result")
+                                                        );
+
+        // 用户行为监听
+        redisMessageListenerContainer.addMessageListener(
+                new UserActionListener(),
+                new ChannelTopic("user:action")
+                                                        );
+
+        log.info("Redis消息监听器初始化完成");
+    }
+
+    /**
+     * 处理订单状态变更
+     */
+    private void handleOrderStatusChange(Long orderId, Long userId, Integer status, String action) {
+        // 可以在这里实现：
+        // 1. 发送邮件通知
+        // 2. 推送消息
+        // 3. 更新统计数据
+        // 4. 触发其他业务流程
+
+        switch (action) {
+            case "created":
+                log.info("订单创建通知处理: 订单ID={}", orderId);
+                break;
+            case "paid":
+                log.info("订单支付通知处理: 订单ID={}", orderId);
+                break;
+            case "shipped":
+                log.info("订单发货通知处理: 订单ID={}", orderId);
+                break;
+            case "completed":
+                log.info("订单完成通知处理: 订单ID={}", orderId);
+                break;
+            case "cancelled":
+                log.info("订单取消通知处理: 订单ID={}", orderId);
+                break;
+            default:
+                log.info("未知订单状态变更: {}", action);
+        }
+    }
+
+    /**
+     * 处理库存变更
+     */
+    private void handleStockChange(Long productId, Integer quantity, String operation) {
+        // 可以在这里实现：
+        // 1. 库存预警
+        // 2. 自动补货
+        // 3. 数据同步
+        // 4. 统计分析
+
+        if ("decrease".equals(operation)) {
+            log.info("库存扣减处理: 商品ID={}, 扣减数量={}", productId, quantity);
+            // 检查是否需要库存预警
+            checkStockAlert(productId);
+        } else if ("increase".equals(operation)) {
+            log.info("库存增加处理: 商品ID={}, 增加数量={}", productId, quantity);
+        }
+    }
+
+    /**
+     * 处理秒杀结果
+     */
+    private void handleFlashSaleResult(Long userId, Long flashSaleId, Boolean success, Map<String, Object> data) {
+        // 可以在这里实现：
+        // 1. 实时通知用户
+        // 2. 统计秒杀数据
+        // 3. 风控分析
+        // 4. 营销推荐
+
+        if (success) {
+            log.info("秒杀成功处理: 用户ID={}, 秒杀ID={}", userId, flashSaleId);
+            // 发送成功通知
+            sendFlashSaleSuccessNotification(userId, flashSaleId);
+        } else {
+            log.info("秒杀失败处理: 用户ID={}, 秒杀ID={}", userId, flashSaleId);
+            // 可以推荐其他商品
+            recommendAlternativeProducts(userId, flashSaleId);
+        }
+    }
+
+    /**
+     * 处理用户行为
+     */
+    private void handleUserAction(Long userId, String action, Map<String, Object> data) {
+        // 可以在这里实现：
+        // 1. 用户行为分析
+        // 2. 个性化推荐
+        // 3. 风控检测
+        // 4. 营销触发
+
+        switch (action) {
+            case "login":
+                log.info("用户登录行为处理: 用户ID={}", userId);
+                break;
+            case "view_product":
+                log.info("用户浏览商品行为处理: 用户ID={}", userId);
+                break;
+            case "add_to_cart":
+                log.info("用户添加购物车行为处理: 用户ID={}", userId);
+                break;
+            case "purchase":
+                log.info("用户购买行为处理: 用户ID={}", userId);
+                break;
+            default:
+                log.info("其他用户行为: {}", action);
+        }
+    }
+
+    /**
+     * 检查库存预警
+     */
+    private void checkStockAlert(Long productId) {
+        // 实现库存预警逻辑
+        log.debug("检查商品库存预警: 商品ID={}", productId);
+    }
+
+    /**
+     * 发送秒杀成功通知
+     */
+    private void sendFlashSaleSuccessNotification(Long userId, Long flashSaleId) {
+        // 实现成功通知逻辑
+        log.debug("发送秒杀成功通知: 用户ID={}, 秒杀ID={}", userId, flashSaleId);
+    }
+
+    /**
+     * 推荐替代商品
+     */
+    private void recommendAlternativeProducts(Long userId, Long flashSaleId) {
+        // 实现商品推荐逻辑
+        log.debug("推荐替代商品: 用户ID={}, 秒杀ID={}", userId, flashSaleId);
+    }
+
+    /**
+     * 订单状态变更监听器
+     */
+    private class OrderStatusChangeListener implements MessageListener {
+        @Override
+        public void onMessage(Message message, byte[] pattern) {
+            try {
+                String messageBody = new String(message.getBody());
+                Map<String, Object> data = objectMapper.readValue(messageBody, Map.class);
+
+                Long orderId = Long.valueOf(data.get("orderId").toString());
+                Long userId = Long.valueOf(data.get("userId").toString());
+                Integer status = Integer.valueOf(data.get("status").toString());
+                String action = data.get("action").toString();
+
+                log.info("订单状态变更: 订单ID={}, 用户ID={}, 状态={}, 操作={}",
+                         orderId, userId, status, action);
+
+                // 这里可以添加具体的业务处理逻辑
+                handleOrderStatusChange(orderId, userId, status, action);
+
+            } catch (Exception e) {
+                log.error("处理订单状态变更消息失败", e);
+            }
+        }
+    }
+
+    /**
+     * 库存变更监听器
+     */
+    private class StockChangeListener implements MessageListener {
+        @Override
+        public void onMessage(Message message, byte[] pattern) {
+            try {
+                String messageBody = new String(message.getBody());
+                Map<String, Object> data = objectMapper.readValue(messageBody, Map.class);
+
+                Long productId = Long.valueOf(data.get("productId").toString());
+                Integer quantity = Integer.valueOf(data.get("quantity").toString());
+                String operation = data.get("operation").toString();
+
+                log.info("库存变更: 商品ID={}, 数量={}, 操作={}", productId, quantity, operation);
+
+                // 这里可以添加具体的业务处理逻辑
+                handleStockChange(productId, quantity, operation);
+
+            } catch (Exception e) {
+                log.error("处理库存变更消息失败", e);
+            }
+        }
+    }
+
+    /**
+     * 秒杀结果监听器
+     */
+    private class FlashSaleResultListener implements MessageListener {
+        @Override
+        public void onMessage(Message message, byte[] pattern) {
+            try {
+                String messageBody = new String(message.getBody());
+                Map<String, Object> data = objectMapper.readValue(messageBody, Map.class);
+
+                Long userId = Long.valueOf(data.get("userId").toString());
+                Long flashSaleId = Long.valueOf(data.get("flashSaleId").toString());
+                Boolean success = Boolean.valueOf(data.get("success").toString());
+
+                log.info("秒杀结果: 用户ID={}, 秒杀ID={}, 成功={}", userId, flashSaleId, success);
+
+                // 这里可以添加具体的业务处理逻辑
+                handleFlashSaleResult(userId, flashSaleId, success, data);
+
+            } catch (Exception e) {
+                log.error("处理秒杀结果消息失败", e);
+            }
+        }
+    }
+
+    /**
+     * 用户行为监听器
+     */
+    private class UserActionListener implements MessageListener {
+        @Override
+        public void onMessage(Message message, byte[] pattern) {
+            try {
+                String messageBody = new String(message.getBody());
+                Map<String, Object> data = objectMapper.readValue(messageBody, Map.class);
+
+                Long userId = Long.valueOf(data.get("userId").toString());
+                String action = data.get("action").toString();
+
+                log.info("用户行为: 用户ID={}, 行为={}", userId, action);
+
+                // 这里可以添加具体的业务处理逻辑
+                handleUserAction(userId, action, data);
+
+            } catch (Exception e) {
+                log.error("处理用户行为消息失败", e);
+            }
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/OrderService.java

@@ -0,0 +1,546 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.OrderDTO;
+import com.org.flashsalesystem.dto.ProductDTO;
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.entity.Order;
+import com.org.flashsalesystem.repository.OrderRepository;
+import com.org.flashsalesystem.repository.ProductRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+/**
+ * 订单服务类
+ * 实现订单创建、查询、状态管理等功能
+ * 使用Redis缓存订单信息
+ */
+@Service
+@Slf4j
+public class OrderService {
+
+    private static final String ORDER_CACHE_PREFIX = "order:";
+    private static final String USER_ORDERS_PREFIX = "user_orders:";
+    private static final String ORDER_QUEUE = "order_queue";
+    @Autowired
+    private OrderRepository orderRepository;
+    @Autowired
+    private ProductRepository productRepository;
+    @Autowired
+    private RedisService redisService;
+    @Autowired
+    private ProductService productService;
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 创建普通订单
+     */
+    @Transactional
+    public OrderDTO createOrder(Long userId, OrderDTO.CreateDTO createDTO) {
+        log.info("创建订单: 用户ID={}, 商品ID={}, 数量={}", userId, createDTO.getProductId(), createDTO.getQuantity());
+
+        // 验证商品
+        ProductDTO product = productService.getProductById(createDTO.getProductId());
+        if (product == null) {
+            throw new RuntimeException("商品不存在");
+        }
+
+        if (product.getStatus() != 1) {
+            throw new RuntimeException("商品已下架");
+        }
+
+        // 检查库存
+        if (product.getStock() < createDTO.getQuantity()) {
+            throw new RuntimeException("商品库存不足");
+        }
+
+        // 计算总价
+        BigDecimal totalPrice = product.getPrice().multiply(BigDecimal.valueOf(createDTO.getQuantity()));
+
+        // 创建订单
+        Order order = new Order();
+        order.setUserId(userId);
+        order.setProductId(createDTO.getProductId());
+        order.setQuantity(createDTO.getQuantity());
+        order.setTotalPrice(totalPrice);
+        order.setStatus(1); // 待支付
+        order.setOrderType(1); // 普通订单
+
+        order = orderRepository.save(order);
+
+        // 扣减库存
+        boolean stockUpdated = productService.updateStock(createDTO.getProductId(), createDTO.getQuantity(),
+                                                          "decrease");
+        if (!stockUpdated) {
+            throw new RuntimeException("库存扣减失败");
+        }
+
+        // 缓存订单信息
+        cacheOrderInfo(order);
+
+        // 添加到订单队列
+        redisService.lPush(ORDER_QUEUE, order.getId());
+
+        // 发布订单创建消息
+        publishOrderStatusChange(order, "created");
+
+        log.info("订单创建成功: 订单ID={}", order.getId());
+
+        return buildOrderDTO(order);
+    }
+
+    /**
+     * 根据ID获取订单
+     */
+    public OrderDTO getOrderById(Long orderId) {
+        if (orderId == null) {
+            return null;
+        }
+
+        // 先从缓存获取
+        String cacheKey = ORDER_CACHE_PREFIX + orderId;
+        Map<Object, Object> orderMap = redisService.hGetAll(cacheKey);
+
+        if (!orderMap.isEmpty()) {
+            return buildOrderDTOFromCache(orderId, orderMap);
+        }
+
+        // 缓存中没有，从数据库获取
+        Optional<Order> orderOpt = orderRepository.findById(orderId);
+        if (!orderOpt.isPresent()) {
+            return null;
+        }
+
+        Order order = orderOpt.get();
+
+        // 缓存订单信息
+        cacheOrderInfo(order);
+
+        return buildOrderDTO(order);
+    }
+
+    /**
+     * 获取用户订单列表
+     */
+    public Map<String, Object> getUserOrders(Long userId, OrderDTO.QueryDTO queryDTO) {
+        // 构建分页和排序
+        Sort sort = Sort.by(Sort.Direction.fromString(queryDTO.getSortDirection()), queryDTO.getSortBy());
+        Pageable pageable = PageRequest.of(queryDTO.getPage(), queryDTO.getSize(), sort);
+
+        Page<Order> orderPage;
+
+        // 根据查询条件获取订单
+        if (queryDTO.getStatus() != null) {
+            orderPage = orderRepository.findByUserIdAndStatus(userId, queryDTO.getStatus(), pageable);
+        } else {
+            orderPage = orderRepository.findByUserId(userId, pageable);
+        }
+
+        // 转换为DTO
+        List<OrderDTO> orderDTOs = orderPage.getContent().stream()
+                                            .map(this::buildOrderDTO)
+                                            .collect(Collectors.toList());
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("content", orderDTOs);
+        result.put("totalElements", orderPage.getTotalElements());
+        result.put("totalPages", orderPage.getTotalPages());
+        result.put("currentPage", orderPage.getNumber());
+        result.put("size", orderPage.getSize());
+
+        return result;
+    }
+
+    /**
+     * 获取所有订单列表（管理员）
+     */
+    public Map<String, Object> getAllOrders(OrderDTO.QueryDTO queryDTO) {
+        // 构建分页和排序
+        Sort sort = Sort.by(Sort.Direction.fromString(queryDTO.getSortDirection()), queryDTO.getSortBy());
+        Pageable pageable = PageRequest.of(queryDTO.getPage(), queryDTO.getSize(), sort);
+
+        Page<Order> orderPage;
+
+        // 根据查询条件获取订单
+        if (queryDTO.getStatus() != null) {
+            orderPage = orderRepository.findByStatus(queryDTO.getStatus(), pageable);
+        } else if (queryDTO.getOrderType() != null) {
+            orderPage = orderRepository.findByOrderType(queryDTO.getOrderType(), pageable);
+        } else if (queryDTO.getStartTime() != null && queryDTO.getEndTime() != null) {
+            orderPage = orderRepository.findByTimeRange(queryDTO.getStartTime(), queryDTO.getEndTime(), pageable);
+        } else {
+            orderPage = orderRepository.findAll(pageable);
+        }
+
+        // 转换为DTO
+        List<OrderDTO> orderDTOs = orderPage.getContent().stream()
+                                            .map(this::buildOrderDTO)
+                                            .collect(Collectors.toList());
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("content", orderDTOs);
+        result.put("totalElements", orderPage.getTotalElements());
+        result.put("totalPages", orderPage.getTotalPages());
+        result.put("currentPage", orderPage.getNumber());
+        result.put("size", orderPage.getSize());
+
+        return result;
+    }
+
+    /**
+     * 更新订单状态
+     */
+    @Transactional
+    public OrderDTO updateOrderStatus(Long orderId, Integer newStatus, String remark) {
+        log.info("更新订单状态: 订单ID={}, 新状态={}", orderId, newStatus);
+
+        Optional<Order> orderOpt = orderRepository.findById(orderId);
+        if (!orderOpt.isPresent()) {
+            throw new RuntimeException("订单不存在");
+        }
+
+        Order order = orderOpt.get();
+        Integer oldStatus = order.getStatus();
+
+        // 验证状态转换的合法性
+        if (!isValidStatusTransition(oldStatus, newStatus)) {
+            throw new RuntimeException("无效的状态转换");
+        }
+
+        // 更新状态
+        order.setStatus(newStatus);
+        order = orderRepository.save(order);
+
+        // 更新缓存
+        cacheOrderInfo(order);
+
+        // 处理状态变更的业务逻辑
+        handleStatusChange(order, oldStatus, newStatus);
+
+        // 发布状态变更消息
+        publishOrderStatusChange(order, getStatusDescription(newStatus));
+
+        log.info("订单状态更新成功: 订单ID={}, 状态: {} -> {}", orderId, oldStatus, newStatus);
+
+        return buildOrderDTO(order);
+    }
+
+    /**
+     * 取消订单
+     */
+    @Transactional
+    public OrderDTO cancelOrder(Long orderId, Long userId) {
+        log.info("取消订单: 订单ID={}, 用户ID={}", orderId, userId);
+
+        Optional<Order> orderOpt = orderRepository.findById(orderId);
+        if (!orderOpt.isPresent()) {
+            throw new RuntimeException("订单不存在");
+        }
+
+        Order order = orderOpt.get();
+
+        // 验证用户权限
+        if (!order.getUserId().equals(userId)) {
+            throw new RuntimeException("无权限操作此订单");
+        }
+
+        // 只有待支付状态的订单可以取消
+        if (order.getStatus() != 1) {
+            throw new RuntimeException("订单状态不允许取消");
+        }
+
+        // 更新订单状态为已取消
+        order.setStatus(5);
+        order = orderRepository.save(order);
+
+        // 恢复库存
+        productService.updateStock(order.getProductId(), order.getQuantity(), "increase");
+
+        // 更新缓存
+        cacheOrderInfo(order);
+
+        // 发布订单取消消息
+        publishOrderStatusChange(order, "cancelled");
+
+        log.info("订单取消成功: 订单ID={}", orderId);
+
+        return buildOrderDTO(order);
+    }
+
+    /**
+     * 批量操作订单
+     */
+    @Transactional
+    public List<OrderDTO> batchOperateOrders(OrderDTO.BatchOperationDTO batchDTO) {
+        log.info("批量操作订单: 操作={}, 订单数量={}", batchDTO.getOperation(), batchDTO.getOrderIds().size());
+
+        List<OrderDTO> results = new ArrayList<>();
+
+        for (Long orderId : batchDTO.getOrderIds()) {
+            try {
+                OrderDTO result = null;
+
+                switch (batchDTO.getOperation()) {
+                    case "pay":
+                        result = updateOrderStatus(orderId, 2, "批量支付");
+                        break;
+                    case "ship":
+                        result = updateOrderStatus(orderId, 3, "批量发货");
+                        break;
+                    case "complete":
+                        result = updateOrderStatus(orderId, 4, "批量完成");
+                        break;
+                    case "cancel":
+                        // 需要获取订单的用户ID
+                        Order order = orderRepository.findById(orderId).orElse(null);
+                        if (order != null) {
+                            result = cancelOrder(orderId, order.getUserId());
+                        }
+                        break;
+                    default:
+                        throw new RuntimeException("不支持的操作类型");
+                }
+
+                if (result != null) {
+                    results.add(result);
+                }
+            } catch (Exception e) {
+                log.error("批量操作订单失败: 订单ID={}", orderId, e);
+                // 继续处理其他订单
+            }
+        }
+
+        log.info("批量操作订单完成: 成功处理{}个订单", results.size());
+
+        return results;
+    }
+
+    /**
+     * 获取订单统计信息
+     */
+    public OrderDTO.StatisticsDTO getOrderStatistics() {
+        OrderDTO.StatisticsDTO statistics = new OrderDTO.StatisticsDTO();
+
+        // 总订单数
+        statistics.setTotalOrders(orderRepository.count());
+
+        // 各状态订单数
+        statistics.setPendingPaymentOrders(orderRepository.countByStatus(1));
+        statistics.setPaidOrders(orderRepository.countByStatus(2));
+        statistics.setShippedOrders(orderRepository.countByStatus(3));
+        statistics.setCompletedOrders(orderRepository.countByStatus(4));
+        statistics.setCancelledOrders(orderRepository.countByStatus(5));
+
+        // 订单类型统计
+        statistics.setNormalOrders(orderRepository.countByOrderType(1));
+        statistics.setFlashSaleOrders(orderRepository.countByOrderType(2));
+
+        // 金额统计（这里简化处理，实际应该从数据库聚合查询）
+        List<Order> allOrders = orderRepository.findAll();
+        BigDecimal totalAmount = allOrders.stream()
+                                          .map(Order::getTotalPrice)
+                                          .reduce(BigDecimal.ZERO, BigDecimal::add);
+        statistics.setTotalAmount(totalAmount);
+
+        // 今日金额
+        LocalDateTime todayStart = LocalDateTime.now().withHour(0).withMinute(0).withSecond(0);
+        LocalDateTime todayEnd = LocalDateTime.now().withHour(23).withMinute(59).withSecond(59);
+        List<Order> todayOrders = orderRepository.findByTimeRange(todayStart, todayEnd);
+        BigDecimal todayAmount = todayOrders.stream()
+                                            .map(Order::getTotalPrice)
+                                            .reduce(BigDecimal.ZERO, BigDecimal::add);
+        statistics.setTodayAmount(todayAmount);
+
+        return statistics;
+    }
+
+    /**
+     * 缓存订单信息
+     */
+    private void cacheOrderInfo(Order order) {
+        String cacheKey = ORDER_CACHE_PREFIX + order.getId();
+        Map<String, Object> orderMap = new HashMap<>();
+        orderMap.put("userId", order.getUserId().toString());
+        orderMap.put("productId", order.getProductId().toString());
+        orderMap.put("quantity", order.getQuantity().toString());
+        orderMap.put("totalPrice", order.getTotalPrice().toString());
+        orderMap.put("status", order.getStatus().toString());
+        orderMap.put("orderType", order.getOrderType().toString());
+        orderMap.put("createdAt", order.getCreatedAt().toString());
+
+        redisService.hMSet(cacheKey, orderMap);
+        redisService.expire(cacheKey, 24, TimeUnit.HOURS);
+
+        // 添加到用户订单列表
+        String userOrdersKey = USER_ORDERS_PREFIX + order.getUserId();
+        redisService.lPush(userOrdersKey, order.getId());
+        redisService.expire(userOrdersKey, 24, TimeUnit.HOURS);
+    }
+
+    /**
+     * 从缓存构建OrderDTO
+     */
+    private OrderDTO buildOrderDTOFromCache(Long orderId, Map<Object, Object> orderMap) {
+        OrderDTO orderDTO = new OrderDTO();
+        orderDTO.setId(orderId);
+        orderDTO.setUserId(Long.valueOf((String) orderMap.get("userId")));
+        orderDTO.setProductId(Long.valueOf((String) orderMap.get("productId")));
+        orderDTO.setQuantity(Integer.valueOf((String) orderMap.get("quantity")));
+        orderDTO.setTotalPrice(new BigDecimal((String) orderMap.get("totalPrice")));
+        orderDTO.setStatus(Integer.valueOf((String) orderMap.get("status")));
+        orderDTO.setOrderType(Integer.valueOf((String) orderMap.get("orderType")));
+        orderDTO.setCreatedAt(LocalDateTime.parse((String) orderMap.get("createdAt")));
+
+        // 设置状态和类型描述
+        orderDTO.setStatusDescription(getStatusDescription(orderDTO.getStatus()));
+        orderDTO.setOrderTypeDescription(getOrderTypeDescription(orderDTO.getOrderType()));
+
+        // 获取用户和商品信息
+        UserDTO user = userService.getUserById(orderDTO.getUserId());
+        if (user != null) {
+            orderDTO.setUsername(user.getUsername());
+        }
+
+        ProductDTO product = productService.getProductById(orderDTO.getProductId());
+        if (product != null) {
+            orderDTO.setProductName(product.getName());
+            orderDTO.setProductImageUrl(product.getImageUrl());
+        }
+
+        return orderDTO;
+    }
+
+    /**
+     * 构建OrderDTO
+     */
+    private OrderDTO buildOrderDTO(Order order) {
+        OrderDTO orderDTO = new OrderDTO();
+        BeanUtils.copyProperties(order, orderDTO);
+
+        // 设置状态和类型描述
+        orderDTO.setStatusDescription(getStatusDescription(order.getStatus()));
+        orderDTO.setOrderTypeDescription(getOrderTypeDescription(order.getOrderType()));
+
+        // 获取用户信息
+        UserDTO user = userService.getUserById(order.getUserId());
+        if (user != null) {
+            orderDTO.setUsername(user.getUsername());
+        }
+
+        // 获取商品信息
+        ProductDTO product = productService.getProductById(order.getProductId());
+        if (product != null) {
+            orderDTO.setProductName(product.getName());
+            orderDTO.setProductImageUrl(product.getImageUrl());
+        }
+
+        return orderDTO;
+    }
+
+    /**
+     * 验证状态转换的合法性
+     */
+    private boolean isValidStatusTransition(Integer fromStatus, Integer toStatus) {
+        // 定义合法的状态转换
+        Map<Integer, List<Integer>> validTransitions = new HashMap<>();
+        validTransitions.put(1, Arrays.asList(2, 5)); // 待支付 -> 已支付/已取消
+        validTransitions.put(2, Arrays.asList(3, 5)); // 已支付 -> 已发货/已取消
+        validTransitions.put(3, Collections.singletonList(4));    // 已发货 -> 已完成
+        validTransitions.put(4, Collections.emptyList());     // 已完成 -> 无
+        validTransitions.put(5, Collections.emptyList());     // 已取消 -> 无
+
+        List<Integer> allowedTransitions = validTransitions.get(fromStatus);
+        return allowedTransitions != null && allowedTransitions.contains(toStatus);
+    }
+
+    /**
+     * 处理状态变更的业务逻辑
+     */
+    private void handleStatusChange(Order order, Integer oldStatus, Integer newStatus) {
+        // 支付完成
+        if (oldStatus == 1 && newStatus == 2) {
+            log.info("订单支付完成: 订单ID={}", order.getId());
+            // 这里可以添加支付完成后的业务逻辑
+        }
+
+        // 发货
+        if (oldStatus == 2 && newStatus == 3) {
+            log.info("订单已发货: 订单ID={}", order.getId());
+            // 这里可以添加发货后的业务逻辑
+        }
+
+        // 完成
+        if (oldStatus == 3 && newStatus == 4) {
+            log.info("订单已完成: 订单ID={}", order.getId());
+            // 这里可以添加订单完成后的业务逻辑
+        }
+
+        // 取消
+        if (newStatus == 5) {
+            log.info("订单已取消: 订单ID={}", order.getId());
+            // 这里可以添加订单取消后的业务逻辑
+        }
+    }
+
+    /**
+     * 发布订单状态变更消息
+     */
+    private void publishOrderStatusChange(Order order, String action) {
+        Map<String, Object> message = new HashMap<>();
+        message.put("orderId", order.getId());
+        message.put("userId", order.getUserId());
+        message.put("productId", order.getProductId());
+        message.put("status", order.getStatus());
+        message.put("action", action);
+        message.put("timestamp", System.currentTimeMillis());
+
+        redisService.publish("order:status:change", message);
+    }
+
+    /**
+     * 获取状态描述
+     */
+    private String getStatusDescription(Integer status) {
+        switch (status) {
+            case 1:
+                return "待支付";
+            case 2:
+                return "已支付";
+            case 3:
+                return "已发货";
+            case 4:
+                return "已完成";
+            case 5:
+                return "已取消";
+            default:
+                return "未知状态";
+        }
+    }
+
+    /**
+     * 获取订单类型描述
+     */
+    private String getOrderTypeDescription(Integer orderType) {
+        switch (orderType) {
+            case 1:
+                return "普通订单";
+            case 2:
+                return "秒杀订单";
+            default:
+                return "未知类型";
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/ProductService.java

@@ -0,0 +1,443 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.ProductDTO;
+import com.org.flashsalesystem.entity.Product;
+import com.org.flashsalesystem.repository.ProductRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+/**
+ * 商品服务类
+ * 实现商品管理、库存控制、缓存等功能
+ */
+@Service
+@Slf4j
+public class ProductService {
+
+    private static final String PRODUCT_CACHE_PREFIX = "product:";
+    private static final String PRODUCT_LIST_CACHE_PREFIX = "product_list:";
+    private static final String PRODUCT_STOCK_PREFIX = "product_stock:";
+    private static final String PRODUCT_SALES_RANK = "product_sales_rank";
+    private static final String HOT_PRODUCTS_CACHE = "hot_products";
+    @Autowired
+    private ProductRepository productRepository;
+    @Autowired
+    private RedisService redisService;
+    @Value("${flashsale.cache.product-expire-minutes:60}")
+    private int productCacheExpireMinutes;
+
+    /**
+     * 创建商品
+     */
+    @Transactional
+    public ProductDTO createProduct(ProductDTO.CreateDTO createDTO) {
+        log.info("创建商品: {}", createDTO.getName());
+
+        Product product = new Product();
+        BeanUtils.copyProperties(createDTO, product);
+        product.setStatus(1); // 默认上架
+
+        product = productRepository.save(product);
+
+        // 缓存商品信息
+        cacheProductInfo(product);
+
+        // 初始化库存到Redis
+        if (product.getStock() > 0) {
+            String stockKey = PRODUCT_STOCK_PREFIX + product.getId();
+            redisService.set(stockKey, product.getStock());
+        }
+
+        // 清除商品列表缓存
+        clearProductListCache();
+
+        ProductDTO productDTO = new ProductDTO();
+        BeanUtils.copyProperties(product, productDTO);
+
+        log.info("商品创建成功: {}, ID: {}", product.getName(), product.getId());
+        return productDTO;
+    }
+
+    /**
+     * 根据ID获取商品信息
+     */
+    public ProductDTO getProductById(Long productId) {
+        if (productId == null) {
+            return null;
+        }
+
+        // 先从缓存获取
+        String cacheKey = PRODUCT_CACHE_PREFIX + productId;
+        Map<Object, Object> productMap = redisService.hGetAll(cacheKey);
+
+        if (!productMap.isEmpty()) {
+            return buildProductDTOFromCache(productId, productMap);
+        }
+
+        // 缓存中没有，从数据库获取
+        Optional<Product> productOpt = productRepository.findById(productId);
+        if (!productOpt.isPresent()) {
+            return null;
+        }
+
+        Product product = productOpt.get();
+
+        // 缓存商品信息
+        cacheProductInfo(product);
+
+        ProductDTO productDTO = new ProductDTO();
+        BeanUtils.copyProperties(product, productDTO);
+
+        return productDTO;
+    }
+
+    /**
+     * 获取商品列表（分页）
+     */
+    public Map<String, Object> getProductList(ProductDTO.QueryDTO queryDTO) {
+        // 构建缓存键
+        String cacheKey = buildProductListCacheKey(queryDTO);
+
+        // 尝试从缓存获取
+        Object cachedResult = redisService.get(cacheKey);
+        if (cachedResult != null) {
+            return (Map<String, Object>) cachedResult;
+        }
+
+        // 构建分页和排序
+        Sort sort = Sort.by(Sort.Direction.fromString(queryDTO.getSortDirection()), queryDTO.getSortBy());
+        Pageable pageable = PageRequest.of(queryDTO.getPage(), queryDTO.getSize(), sort);
+
+        Page<Product> productPage;
+
+        // 根据查询条件获取数据
+        if (queryDTO.getName() != null && !queryDTO.getName().trim().isEmpty()) {
+            productPage = productRepository.findByStatus(1, pageable)
+                                           .map(product -> {
+                                               if (product.getName().contains(queryDTO.getName())) {
+                                                   return product;
+                                               }
+                                               return null;
+                                           })
+                                           .map(product -> product);
+        } else {
+            productPage = productRepository.findByStatus(queryDTO.getStatus() != null ? queryDTO.getStatus() : 1,
+                                                         pageable);
+        }
+
+        // 转换为DTO
+        List<ProductDTO> productDTOs = productPage.getContent().stream()
+                                                  .map(product -> {
+                                                      ProductDTO dto = new ProductDTO();
+                                                      BeanUtils.copyProperties(product, dto);
+                                                      return dto;
+                                                  })
+                                                  .collect(Collectors.toList());
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("content", productDTOs);
+        result.put("totalElements", productPage.getTotalElements());
+        result.put("totalPages", productPage.getTotalPages());
+        result.put("currentPage", productPage.getNumber());
+        result.put("size", productPage.getSize());
+
+        // 缓存结果
+        redisService.set(cacheKey, result, 10, TimeUnit.MINUTES);
+
+        return result;
+    }
+
+    /**
+     * 获取热门商品
+     */
+    public List<ProductDTO> getHotProducts(int limit) {
+        // 尝试从缓存获取
+        List<Object> cachedProducts = redisService.lRange(HOT_PRODUCTS_CACHE, 0, limit - 1);
+        if (!cachedProducts.isEmpty()) {
+            return cachedProducts.stream()
+                                 .map(obj -> (ProductDTO) obj)
+                                 .collect(Collectors.toList());
+        }
+
+        // 从数据库获取
+        Pageable pageable = PageRequest.of(0, limit);
+        List<Product> hotProducts = productRepository.findHotProducts(pageable);
+
+        List<ProductDTO> productDTOs = hotProducts.stream()
+                                                  .map(product -> {
+                                                      ProductDTO dto = new ProductDTO();
+                                                      BeanUtils.copyProperties(product, dto);
+                                                      return dto;
+                                                  })
+                                                  .collect(Collectors.toList());
+
+        // 缓存热门商品
+        if (!productDTOs.isEmpty()) {
+            redisService.delete(HOT_PRODUCTS_CACHE);
+            redisService.rPush(HOT_PRODUCTS_CACHE, productDTOs.toArray());
+            redisService.expire(HOT_PRODUCTS_CACHE, 30, TimeUnit.MINUTES);
+        }
+
+        return productDTOs;
+    }
+
+    /**
+     * 更新商品信息
+     */
+    @Transactional
+    public ProductDTO updateProduct(Long productId, ProductDTO.UpdateDTO updateDTO) {
+        log.info("更新商品信息: {}", productId);
+
+        Optional<Product> productOpt = productRepository.findById(productId);
+        if (!productOpt.isPresent()) {
+            throw new RuntimeException("商品不存在");
+        }
+
+        Product product = productOpt.get();
+
+        // 更新字段
+        if (updateDTO.getName() != null) {
+            product.setName(updateDTO.getName());
+        }
+        if (updateDTO.getDescription() != null) {
+            product.setDescription(updateDTO.getDescription());
+        }
+        if (updateDTO.getPrice() != null) {
+            product.setPrice(updateDTO.getPrice());
+        }
+        if (updateDTO.getStock() != null) {
+            product.setStock(updateDTO.getStock());
+            // 同步更新Redis中的库存
+            String stockKey = PRODUCT_STOCK_PREFIX + productId;
+            redisService.set(stockKey, updateDTO.getStock());
+        }
+        if (updateDTO.getImageUrl() != null) {
+            product.setImageUrl(updateDTO.getImageUrl());
+        }
+        if (updateDTO.getStatus() != null) {
+            product.setStatus(updateDTO.getStatus());
+        }
+
+        product = productRepository.save(product);
+
+        // 更新缓存
+        cacheProductInfo(product);
+        clearProductListCache();
+
+        ProductDTO productDTO = new ProductDTO();
+        BeanUtils.copyProperties(product, productDTO);
+
+        log.info("商品信息更新成功: {}", productId);
+        return productDTO;
+    }
+
+    /**
+     * 更新商品库存
+     */
+    @Transactional
+    public boolean updateStock(Long productId, Integer quantity, String operation) {
+        log.info("更新商品库存: {}, 数量: {}, 操作: {}", productId, quantity, operation);
+
+        String stockKey = PRODUCT_STOCK_PREFIX + productId;
+
+        try {
+            if ("increase".equals(operation)) {
+                // 增加库存
+                redisService.incrBy(stockKey, quantity);
+                productRepository.increaseStock(productId, quantity);
+            } else if ("decrease".equals(operation)) {
+                // 减少库存
+                Long currentStock = (Long) redisService.get(stockKey);
+                if (currentStock == null || currentStock < quantity) {
+                    log.warn("库存不足: 商品ID={}, 当前库存={}, 需要扣减={}", productId, currentStock, quantity);
+                    return false;
+                }
+
+                redisService.decrBy(stockKey, quantity);
+                int updatedRows = productRepository.updateStock(productId, quantity);
+                if (updatedRows == 0) {
+                    // 数据库更新失败，回滚Redis
+                    redisService.incrBy(stockKey, quantity);
+                    return false;
+                }
+            }
+
+            // 清除商品缓存，强制下次查询时重新加载
+            String productCacheKey = PRODUCT_CACHE_PREFIX + productId;
+            redisService.delete(productCacheKey);
+
+            // 发布库存变更消息
+            Map<String, Object> message = new HashMap<>();
+            message.put("productId", productId);
+            message.put("quantity", quantity);
+            message.put("operation", operation);
+            message.put("timestamp", System.currentTimeMillis());
+            redisService.publish("stock:change", message);
+
+            log.info("商品库存更新成功: {}", productId);
+            return true;
+        } catch (Exception e) {
+            log.error("更新商品库存失败: {}", productId, e);
+            return false;
+        }
+    }
+
+    /**
+     * 获取商品库存（从Redis）
+     */
+    public Integer getProductStock(Long productId) {
+        String stockKey = PRODUCT_STOCK_PREFIX + productId;
+        Object stock = redisService.get(stockKey);
+        return stock != null ? Integer.valueOf(stock.toString()) : 0;
+    }
+
+    /**
+     * 预热商品库存到Redis
+     */
+    public void preloadProductStock(Long productId) {
+        Optional<Product> productOpt = productRepository.findById(productId);
+        if (productOpt.isPresent()) {
+            Product product = productOpt.get();
+            String stockKey = PRODUCT_STOCK_PREFIX + productId;
+            redisService.set(stockKey, product.getStock());
+            log.info("商品库存预热完成: 商品ID={}, 库存={}", productId, product.getStock());
+        }
+    }
+
+    /**
+     * 批量预热商品库存
+     */
+    public void batchPreloadProductStock(List<Long> productIds) {
+        log.info("开始批量预热商品库存: {}", productIds);
+
+        for (Long productId : productIds) {
+            preloadProductStock(productId);
+        }
+
+        log.info("批量预热商品库存完成");
+    }
+
+    /**
+     * 增加商品销量排行榜分数
+     */
+    public void increaseSalesRank(Long productId, Integer quantity) {
+        redisService.zIncrBy(PRODUCT_SALES_RANK, productId, quantity);
+    }
+
+    /**
+     * 获取商品销量排行榜
+     */
+    public List<Map<String, Object>> getSalesRank(int limit) {
+        Set<Object> topProducts = redisService.zRevRange(PRODUCT_SALES_RANK, 0, limit - 1);
+
+        List<Map<String, Object>> result = new ArrayList<>();
+        int rank = 1;
+        for (Object productId : topProducts) {
+            ProductDTO product = getProductById(Long.valueOf(productId.toString()));
+            if (product != null) {
+                Map<String, Object> item = new HashMap<>();
+                item.put("rank", rank++);
+                item.put("product", product);
+                item.put("sales", redisService.zIncrBy(PRODUCT_SALES_RANK, productId, 0)); // 获取分数
+                result.add(item);
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * 缓存商品信息
+     */
+    private void cacheProductInfo(Product product) {
+        String cacheKey = PRODUCT_CACHE_PREFIX + product.getId();
+        Map<String, Object> productMap = new HashMap<>();
+        productMap.put("name", product.getName());
+        productMap.put("description", product.getDescription());
+        productMap.put("price", product.getPrice().toString());
+        productMap.put("stock", product.getStock().toString());
+        productMap.put("imageUrl", product.getImageUrl());
+        productMap.put("status", product.getStatus().toString());
+
+        redisService.hMSet(cacheKey, productMap);
+        redisService.expire(cacheKey, productCacheExpireMinutes, TimeUnit.MINUTES);
+    }
+
+    /**
+     * 从缓存构建ProductDTO
+     */
+    private ProductDTO buildProductDTOFromCache(Long productId, Map<Object, Object> productMap) {
+        ProductDTO productDTO = new ProductDTO();
+        productDTO.setId(productId);
+        productDTO.setName((String) productMap.get("name"));
+        productDTO.setDescription((String) productMap.get("description"));
+        productDTO.setPrice(new java.math.BigDecimal((String) productMap.get("price")));
+        productDTO.setStock(Integer.valueOf((String) productMap.get("stock")));
+        productDTO.setImageUrl((String) productMap.get("imageUrl"));
+        productDTO.setStatus(Integer.valueOf((String) productMap.get("status")));
+        return productDTO;
+    }
+
+    /**
+     * 构建商品列表缓存键
+     */
+    private String buildProductListCacheKey(ProductDTO.QueryDTO queryDTO) {
+        return PRODUCT_LIST_CACHE_PREFIX +
+                (queryDTO.getName() != null ? queryDTO.getName() : "all") + ":" +
+                (queryDTO.getStatus() != null ? queryDTO.getStatus() : "1") + ":" +
+                queryDTO.getPage() + ":" + queryDTO.getSize() + ":" +
+                queryDTO.getSortBy() + ":" + queryDTO.getSortDirection();
+    }
+
+    /**
+     * 清除商品列表缓存
+     */
+    private void clearProductListCache() {
+        // 使用通配符删除所有商品列表缓存
+        // 注意：这里简化处理，实际生产环境可能需要更精确的缓存管理
+        redisService.delete(HOT_PRODUCTS_CACHE);
+    }
+
+    /**
+     * 删除商品
+     */
+    @Transactional
+    public boolean deleteProduct(Long productId) {
+        log.info("删除商品: {}", productId);
+
+        try {
+            // 删除数据库记录
+            productRepository.deleteById(productId);
+
+            // 删除相关缓存
+            String productCacheKey = PRODUCT_CACHE_PREFIX + productId;
+            String stockKey = PRODUCT_STOCK_PREFIX + productId;
+            redisService.delete(productCacheKey);
+            redisService.delete(stockKey);
+
+            // 从销量排行榜中移除
+            redisService.zRem(PRODUCT_SALES_RANK, productId);
+
+            // 清除商品列表缓存
+            clearProductListCache();
+
+            log.info("商品删除成功: {}", productId);
+            return true;
+        } catch (Exception e) {
+            log.error("删除商品失败: {}", productId, e);
+            return false;
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/RateLimitService.java

@@ -0,0 +1,254 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 限流服务
+ * 使用Redis实现接口限流，防止恶意刷单
+ */
+@Service
+@Slf4j
+public class RateLimitService {
+
+    private static final String RATE_LIMIT_PREFIX = "rate_limit:";
+    @Autowired
+    private RedisService redisService;
+    @Value("${flashsale.seckill.rate-limit.max-requests-per-minute:10}")
+    private int maxRequestsPerMinute;
+
+    /**
+     * 检查是否超过限流
+     *
+     * @param key         限流键（通常是用户ID+接口标识）
+     * @param maxRequests 最大请求次数
+     * @param timeWindow  时间窗口（秒）
+     *
+     * @return 是否允许请求
+     */
+    public boolean isAllowed(String key, int maxRequests, int timeWindow) {
+        String rateLimitKey = RATE_LIMIT_PREFIX + key;
+
+        try {
+            // 获取当前计数
+            Long currentCount = redisService.incr(rateLimitKey);
+
+            if (currentCount == 1) {
+                // 第一次请求，设置过期时间
+                redisService.expire(rateLimitKey, timeWindow, TimeUnit.SECONDS);
+            }
+
+            boolean allowed = currentCount <= maxRequests;
+
+            if (!allowed) {
+                log.warn("请求被限流: key={}, 当前计数={}, 最大允许={}", key, currentCount, maxRequests);
+            }
+
+            return allowed;
+        } catch (Exception e) {
+            log.error("限流检查异常: key={}", key, e);
+            // 异常情况下允许请求，避免影响正常业务
+            return true;
+        }
+    }
+
+    /**
+     * 检查用户秒杀接口限流
+     *
+     * @param userId 用户ID
+     *
+     * @return 是否允许请求
+     */
+    public boolean checkFlashSaleRateLimit(Long userId) {
+        String key = "flashsale:" + userId;
+        return isAllowed(key, maxRequestsPerMinute, 60);
+    }
+
+    /**
+     * 检查用户登录接口限流
+     *
+     * @param identifier 标识符（用户名或IP）
+     *
+     * @return 是否允许请求
+     */
+    public boolean checkLoginRateLimit(String identifier) {
+        String key = "login:" + identifier;
+        return isAllowed(key, 5, 300); // 5分钟内最多5次登录尝试
+    }
+
+    /**
+     * 检查用户注册接口限流
+     *
+     * @param ip IP地址
+     *
+     * @return 是否允许请求
+     */
+    public boolean checkRegisterRateLimit(String ip) {
+        String key = "register:" + ip;
+        return isAllowed(key, 3, 3600); // 1小时内最多3次注册
+    }
+
+    /**
+     * 检查购物车操作限流
+     *
+     * @param userId 用户ID
+     *
+     * @return 是否允许请求
+     */
+    public boolean checkCartOperationRateLimit(Long userId) {
+        String key = "cart:" + userId;
+        return isAllowed(key, 100, 60); // 1分钟内最多100次购物车操作
+    }
+
+    /**
+     * 获取剩余请求次数
+     *
+     * @param key         限流键
+     * @param maxRequests 最大请求次数
+     *
+     * @return 剩余请求次数
+     */
+    public int getRemainingRequests(String key, int maxRequests) {
+        String rateLimitKey = RATE_LIMIT_PREFIX + key;
+
+        try {
+            Object countObj = redisService.get(rateLimitKey);
+            if (countObj == null) {
+                return maxRequests;
+            }
+
+            int currentCount = Integer.parseInt(countObj.toString());
+            return Math.max(0, maxRequests - currentCount);
+        } catch (Exception e) {
+            log.error("获取剩余请求次数异常: key={}", key, e);
+            return maxRequests;
+        }
+    }
+
+    /**
+     * 获取限流重置时间
+     *
+     * @param key 限流键
+     *
+     * @return 重置时间（秒）
+     */
+    public long getResetTime(String key) {
+        String rateLimitKey = RATE_LIMIT_PREFIX + key;
+
+        try {
+            Long expireTime = redisService.getExpire(rateLimitKey);
+            return expireTime != null ? expireTime : 0;
+        } catch (Exception e) {
+            log.error("获取限流重置时间异常: key={}", key, e);
+            return 0;
+        }
+    }
+
+    /**
+     * 清除限流记录
+     *
+     * @param key 限流键
+     */
+    public void clearRateLimit(String key) {
+        String rateLimitKey = RATE_LIMIT_PREFIX + key;
+
+        try {
+            redisService.delete(rateLimitKey);
+            log.info("清除限流记录: key={}", key);
+        } catch (Exception e) {
+            log.error("清除限流记录异常: key={}", key, e);
+        }
+    }
+
+    /**
+     * 滑动窗口限流
+     * 使用ZSet实现更精确的滑动窗口限流
+     *
+     * @param key         限流键
+     * @param maxRequests 最大请求次数
+     * @param timeWindow  时间窗口（秒）
+     *
+     * @return 是否允许请求
+     */
+    public boolean slidingWindowRateLimit(String key, int maxRequests, int timeWindow) {
+        String rateLimitKey = RATE_LIMIT_PREFIX + "sliding:" + key;
+        long now = System.currentTimeMillis();
+        long windowStart = now - timeWindow * 1000L;
+
+        try {
+            // 移除过期的记录
+            redisService.zRem(rateLimitKey, 0, windowStart);
+
+            // 获取当前窗口内的请求数
+            Long currentCount = redisService.zCard(rateLimitKey);
+
+            if (currentCount != null && currentCount >= maxRequests) {
+                log.warn("滑动窗口限流: key={}, 当前计数={}, 最大允许={}", key, currentCount, maxRequests);
+                return false;
+            }
+
+            // 添加当前请求
+            redisService.zAdd(rateLimitKey, String.valueOf(now), now);
+
+            // 设置过期时间
+            redisService.expire(rateLimitKey, timeWindow + 1, TimeUnit.SECONDS);
+
+            return true;
+        } catch (Exception e) {
+            log.error("滑动窗口限流异常: key={}", key, e);
+            return true;
+        }
+    }
+
+    /**
+     * 令牌桶限流
+     * 使用Redis实现令牌桶算法
+     *
+     * @param key        限流键
+     * @param capacity   桶容量
+     * @param refillRate 令牌补充速率（每秒）
+     *
+     * @return 是否允许请求
+     */
+    public boolean tokenBucketRateLimit(String key, int capacity, double refillRate) {
+        String bucketKey = RATE_LIMIT_PREFIX + "bucket:" + key;
+        String lastRefillKey = bucketKey + ":last_refill";
+
+        try {
+            long now = System.currentTimeMillis();
+
+            // 获取当前令牌数和上次补充时间
+            Object tokensObj = redisService.get(bucketKey);
+            Object lastRefillObj = redisService.get(lastRefillKey);
+
+            double tokens = tokensObj != null ? Double.parseDouble(tokensObj.toString()) : capacity;
+            long lastRefill = lastRefillObj != null ? Long.parseLong(lastRefillObj.toString()) : now;
+
+            // 计算需要补充的令牌数
+            double timePassed = (now - lastRefill) / 1000.0;
+            double tokensToAdd = timePassed * refillRate;
+            tokens = Math.min(capacity, tokens + tokensToAdd);
+
+            if (tokens >= 1) {
+                // 消耗一个令牌
+                tokens -= 1;
+
+                // 更新令牌数和时间
+                redisService.set(bucketKey, String.valueOf(tokens), 3600, TimeUnit.SECONDS);
+                redisService.set(lastRefillKey, String.valueOf(now), 3600, TimeUnit.SECONDS);
+
+                return true;
+            } else {
+                log.warn("令牌桶限流: key={}, 当前令牌数={}", key, tokens);
+                return false;
+            }
+        } catch (Exception e) {
+            log.error("令牌桶限流异常: key={}", key, e);
+            return true;
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/service/RedisPipelineService.java

@@ -0,0 +1,291 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataAccessException;
+import org.springframework.data.redis.core.RedisOperations;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.SessionCallback;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Redis管道技术服务
+ * 实现批量操作优化，提高性能
+ */
+@Service
+@Slf4j
+public class RedisPipelineService {
+
+    @Autowired
+    private RedisTemplate<String, Object> redisTemplate;
+
+    /**
+     * 批量设置键值对
+     */
+    public void batchSet(Map<String, Object> keyValues) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map.Entry<String, Object> entry : keyValues.entrySet()) {
+                    ops.opsForValue().set(entry.getKey(), entry.getValue());
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量设置完成，数量: {}", keyValues.size());
+    }
+
+    /**
+     * 批量设置键值对并指定过期时间
+     */
+    public void batchSetWithExpire(Map<String, Object> keyValues, long timeout, TimeUnit unit) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map.Entry<String, Object> entry : keyValues.entrySet()) {
+                    ops.opsForValue().set(entry.getKey(), entry.getValue(), timeout, unit);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量设置带过期时间完成，数量: {}", keyValues.size());
+    }
+
+    /**
+     * 批量获取值
+     */
+    public List<Object> batchGet(List<String> keys) {
+        List<Object> results = redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (String key : keys) {
+                    ops.opsForValue().get(key);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量获取完成，数量: {}", keys.size());
+        return results;
+    }
+
+    /**
+     * 批量删除键
+     */
+    public void batchDelete(List<String> keys) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (String key : keys) {
+                    ops.delete(key);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量删除完成，数量: {}", keys.size());
+    }
+
+    /**
+     * 批量Hash操作
+     */
+    public void batchHashSet(String key, Map<String, Object> hash) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map.Entry<String, Object> entry : hash.entrySet()) {
+                    ops.opsForHash().put(key, entry.getKey(), entry.getValue());
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量Hash设置完成，key: {}, 字段数量: {}", key, hash.size());
+    }
+
+    /**
+     * 批量List操作
+     */
+    public void batchListPush(String key, List<Object> values) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Object value : values) {
+                    ops.opsForList().rightPush(key, value);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量List推入完成，key: {}, 数量: {}", key, values.size());
+    }
+
+    /**
+     * 批量Set操作
+     */
+    public void batchSetAdd(String key, List<Object> values) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Object value : values) {
+                    ops.opsForSet().add(key, value);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量Set添加完成，key: {}, 数量: {}", key, values.size());
+    }
+
+    /**
+     * 批量ZSet操作
+     */
+    public void batchZSetAdd(String key, Map<Object, Double> scoreMembers) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map.Entry<Object, Double> entry : scoreMembers.entrySet()) {
+                    ops.opsForZSet().add(key, entry.getKey(), entry.getValue());
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量ZSet添加完成，key: {}, 数量: {}", key, scoreMembers.size());
+    }
+
+    /**
+     * 批量递增操作
+     */
+    public List<Object> batchIncrement(List<String> keys, long delta) {
+        List<Object> results = redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (String key : keys) {
+                    ops.opsForValue().increment(key, delta);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量递增完成，数量: {}, 增量: {}", keys.size(), delta);
+        return results;
+    }
+
+    /**
+     * 批量设置过期时间
+     */
+    public void batchExpire(List<String> keys, long timeout, TimeUnit unit) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (String key : keys) {
+                    ops.expire(key, timeout, unit);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("批量设置过期时间完成，数量: {}", keys.size());
+    }
+
+    /**
+     * 复杂批量操作示例：用户数据预热
+     */
+    public void preloadUserData(List<Map<String, Object>> userData) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map<String, Object> user : userData) {
+                    String userId = user.get("id").toString();
+                    String userKey = "user:" + userId;
+
+                    // 设置用户基本信息
+                    ops.opsForHash().putAll(userKey, user);
+
+                    // 设置过期时间
+                    ops.expire(userKey, 30, TimeUnit.MINUTES);
+
+                    // 添加到在线用户集合
+                    ops.opsForSet().add("online_users", userId);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("用户数据预热完成，数量: {}", userData.size());
+    }
+
+    /**
+     * 复杂批量操作示例：商品数据预热
+     */
+    public void preloadProductData(List<Map<String, Object>> productData) {
+        redisTemplate.executePipelined(new SessionCallback<Object>() {
+            @Override
+            public <K, V> Object execute(RedisOperations<K, V> operations) throws DataAccessException {
+                RedisOperations<String, Object> ops = (RedisOperations<String, Object>) operations;
+
+                for (Map<String, Object> product : productData) {
+                    String productId = product.get("id").toString();
+                    String productKey = "product:" + productId;
+                    String stockKey = "product_stock:" + productId;
+
+                    // 设置商品信息
+                    ops.opsForHash().putAll(productKey, product);
+
+                    // 设置库存
+                    ops.opsForValue().set(stockKey, product.get("stock"));
+
+                    // 设置过期时间
+                    ops.expire(productKey, 60, TimeUnit.MINUTES);
+
+                    // 添加到销量排行榜（初始分数为0）
+                    ops.opsForZSet().add("product_sales_rank", productId, 0);
+                }
+
+                return null;
+            }
+        });
+
+        log.info("商品数据预热完成，数量: {}", productData.size());
+    }
+}

src/main/java/com/org/flashsalesystem/service/RedisService.java

@@ -0,0 +1,359 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.script.DefaultRedisScript;
+import org.springframework.stereotype.Service;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Redis服务类
+ * 封装Redis的各种操作，包括五种数据类型的应用
+ */
+@Service
+@Slf4j
+public class RedisService {
+
+    @Autowired
+    private RedisTemplate<String, Object> redisTemplate;
+
+    @Autowired
+    private RedisTemplate<String, String> stringRedisTemplate;
+
+    @Autowired
+    private DefaultRedisScript<Long> flashSaleScript;
+
+    @Autowired
+    private DefaultRedisScript<String> lockScript;
+
+    @Autowired
+    private DefaultRedisScript<Long> unlockScript;
+
+    // ========== String类型操作 ==========
+
+    /**
+     * 设置字符串值
+     */
+    public void set(String key, Object value) {
+        redisTemplate.opsForValue().set(key, value);
+    }
+
+    /**
+     * 设置字符串值并指定过期时间
+     */
+    public void set(String key, Object value, long timeout, TimeUnit unit) {
+        redisTemplate.opsForValue().set(key, value, timeout, unit);
+    }
+
+    /**
+     * 获取字符串值
+     */
+    public Object get(String key) {
+        return redisTemplate.opsForValue().get(key);
+    }
+
+    /**
+     * 原子递增
+     */
+    public Long incr(String key) {
+        return redisTemplate.opsForValue().increment(key);
+    }
+
+    /**
+     * 原子递增指定步长
+     */
+    public Long incrBy(String key, long delta) {
+        return redisTemplate.opsForValue().increment(key, delta);
+    }
+
+    /**
+     * 原子递减
+     */
+    public Long decr(String key) {
+        return redisTemplate.opsForValue().decrement(key);
+    }
+
+    /**
+     * 原子递减指定步长
+     */
+    public Long decrBy(String key, long delta) {
+        return redisTemplate.opsForValue().decrement(key, delta);
+    }
+
+    /**
+     * 设置键值，仅当键不存在时
+     */
+    public Boolean setNx(String key, Object value) {
+        return redisTemplate.opsForValue().setIfAbsent(key, value);
+    }
+
+    /**
+     * 设置键值和过期时间，仅当键不存在时
+     */
+    public Boolean setNx(String key, Object value, long timeout, TimeUnit unit) {
+        return redisTemplate.opsForValue().setIfAbsent(key, value, timeout, unit);
+    }
+
+    // ========== Hash类型操作 ==========
+
+    /**
+     * 设置Hash字段值
+     */
+    public void hSet(String key, String field, Object value) {
+        redisTemplate.opsForHash().put(key, field, value);
+    }
+
+    /**
+     * 获取Hash字段值
+     */
+    public Object hGet(String key, String field) {
+        return redisTemplate.opsForHash().get(key, field);
+    }
+
+    /**
+     * 批量设置Hash字段
+     */
+    public void hMSet(String key, Map<String, Object> map) {
+        redisTemplate.opsForHash().putAll(key, map);
+    }
+
+    /**
+     * 批量获取Hash字段值
+     */
+    public List<Object> hMGet(String key, Collection<Object> fields) {
+        return redisTemplate.opsForHash().multiGet(key, fields);
+    }
+
+    /**
+     * 获取Hash所有字段和值
+     */
+    public Map<Object, Object> hGetAll(String key) {
+        return redisTemplate.opsForHash().entries(key);
+    }
+
+    /**
+     * 删除Hash字段
+     */
+    public Long hDel(String key, Object... fields) {
+        return redisTemplate.opsForHash().delete(key, fields);
+    }
+
+    /**
+     * 检查Hash字段是否存在
+     */
+    public Boolean hExists(String key, String field) {
+        return redisTemplate.opsForHash().hasKey(key, field);
+    }
+
+    /**
+     * Hash字段值递增
+     */
+    public Long hIncrBy(String key, String field, long delta) {
+        return redisTemplate.opsForHash().increment(key, field, delta);
+    }
+
+    /**
+     * 获取Hash长度
+     */
+    public Long hLen(String key) {
+        return redisTemplate.opsForHash().size(key);
+    }
+
+    // ========== List类型操作 ==========
+
+    /**
+     * 从左侧推入元素
+     */
+    public Long lPush(String key, Object... values) {
+        return redisTemplate.opsForList().leftPushAll(key, values);
+    }
+
+    /**
+     * 从右侧推入元素
+     */
+    public Long rPush(String key, Object... values) {
+        return redisTemplate.opsForList().rightPushAll(key, values);
+    }
+
+    /**
+     * 从左侧弹出元素
+     */
+    public Object lPop(String key) {
+        return redisTemplate.opsForList().leftPop(key);
+    }
+
+    /**
+     * 从右侧弹出元素
+     */
+    public Object rPop(String key) {
+        return redisTemplate.opsForList().rightPop(key);
+    }
+
+    /**
+     * 获取列表长度
+     */
+    public Long lLen(String key) {
+        return redisTemplate.opsForList().size(key);
+    }
+
+    /**
+     * 获取列表指定范围的元素
+     */
+    public List<Object> lRange(String key, long start, long end) {
+        return redisTemplate.opsForList().range(key, start, end);
+    }
+
+    // ========== Set类型操作 ==========
+
+    /**
+     * 添加元素到集合
+     */
+    public Long sAdd(String key, Object... values) {
+        return redisTemplate.opsForSet().add(key, values);
+    }
+
+    /**
+     * 从集合中移除元素
+     */
+    public Long sRem(String key, Object... values) {
+        return redisTemplate.opsForSet().remove(key, values);
+    }
+
+    /**
+     * 检查元素是否在集合中
+     */
+    public Boolean sIsMember(String key, Object value) {
+        return redisTemplate.opsForSet().isMember(key, value);
+    }
+
+    /**
+     * 获取集合所有元素
+     */
+    public Set<Object> sMembers(String key) {
+        return redisTemplate.opsForSet().members(key);
+    }
+
+    /**
+     * 获取集合大小
+     */
+    public Long sCard(String key) {
+        return redisTemplate.opsForSet().size(key);
+    }
+
+    // ========== ZSet类型操作 ==========
+
+    /**
+     * 添加元素到有序集合
+     */
+    public Boolean zAdd(String key, Object value, double score) {
+        return redisTemplate.opsForZSet().add(key, value, score);
+    }
+
+    /**
+     * 从有序集合中移除元素
+     */
+    public Long zRem(String key, Object... values) {
+        return redisTemplate.opsForZSet().remove(key, values);
+    }
+
+    /**
+     * 获取有序集合指定范围的元素（按分数排序）
+     */
+    public Set<Object> zRange(String key, long start, long end) {
+        return redisTemplate.opsForZSet().range(key, start, end);
+    }
+
+    /**
+     * 获取有序集合指定范围的元素（按分数倒序）
+     */
+    public Set<Object> zRevRange(String key, long start, long end) {
+        return redisTemplate.opsForZSet().reverseRange(key, start, end);
+    }
+
+    /**
+     * 增加有序集合元素的分数
+     */
+    public Double zIncrBy(String key, Object value, double delta) {
+        return redisTemplate.opsForZSet().incrementScore(key, value, delta);
+    }
+
+    /**
+     * 获取有序集合大小
+     */
+    public Long zCard(String key) {
+        return redisTemplate.opsForZSet().zCard(key);
+    }
+
+    // ========== 通用操作 ==========
+
+    /**
+     * 删除键
+     */
+    public Boolean delete(String key) {
+        return redisTemplate.delete(key);
+    }
+
+    /**
+     * 批量删除键
+     */
+    public Long delete(Collection<String> keys) {
+        return redisTemplate.delete(keys);
+    }
+
+    /**
+     * 检查键是否存在
+     */
+    public Boolean exists(String key) {
+        return redisTemplate.hasKey(key);
+    }
+
+    /**
+     * 设置键的过期时间
+     */
+    public Boolean expire(String key, long timeout, TimeUnit unit) {
+        return redisTemplate.expire(key, timeout, unit);
+    }
+
+    /**
+     * 获取键的剩余过期时间
+     */
+    public Long getExpire(String key) {
+        return redisTemplate.getExpire(key);
+    }
+
+    // ========== Lua脚本操作 ==========
+
+    /**
+     * 执行秒杀脚本
+     */
+    public Long executeFlashSaleScript(String stockKey, int quantity) {
+        return redisTemplate.execute(flashSaleScript, Collections.singletonList(stockKey), String.valueOf(quantity));
+    }
+
+    /**
+     * 执行分布式锁脚本
+     */
+    public String executeLockScript(String lockKey, String lockValue, int expireSeconds) {
+        return redisTemplate.execute(lockScript, Collections.singletonList(lockKey), lockValue,
+                                     String.valueOf(expireSeconds));
+    }
+
+    /**
+     * 执行释放锁脚本
+     */
+    public Long executeUnlockScript(String lockKey, String lockValue) {
+        return redisTemplate.execute(unlockScript, Collections.singletonList(lockKey), lockValue);
+    }
+
+    // ========== 发布订阅操作 ==========
+
+    /**
+     * 发布消息
+     */
+    public void publish(String channel, Object message) {
+        redisTemplate.convertAndSend(channel, message);
+    }
+}

src/main/java/com/org/flashsalesystem/service/RedissonLockService.java

@@ -0,0 +1,217 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.redisson.api.RLock;
+import org.redisson.api.RedissonClient;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 基于Redisson的分布式锁服务
+ * 提供更简洁和强大的分布式锁功能
+ */
+@Service
+@Slf4j
+public class RedissonLockService {
+
+    @Autowired
+    private RedissonClient redissonClient;
+
+    /**
+     * 尝试获取锁
+     *
+     * @param lockKey   锁的键
+     * @param waitTime  等待时间（秒）
+     * @param leaseTime 锁持有时间（秒）
+     *
+     * @return 是否获取成功
+     */
+    public boolean tryLock(String lockKey, long waitTime, long leaseTime) {
+        RLock lock = redissonClient.getLock(lockKey);
+        try {
+            boolean acquired = lock.tryLock(waitTime, leaseTime, TimeUnit.SECONDS);
+            if (acquired) {
+                log.debug("成功获取分布式锁: {}", lockKey);
+            } else {
+                log.debug("获取分布式锁失败: {}", lockKey);
+            }
+            return acquired;
+        } catch (InterruptedException e) {
+            log.error("获取分布式锁被中断: {}", lockKey, e);
+            Thread.currentThread().interrupt();
+            return false;
+        }
+    }
+
+    /**
+     * 尝试获取锁（使用默认时间）
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 是否获取成功
+     */
+    public boolean tryLock(String lockKey) {
+        return tryLock(lockKey, 3, 30); // 等待3秒，持有30秒
+    }
+
+    /**
+     * 释放锁
+     *
+     * @param lockKey 锁的键
+     */
+    public void unlock(String lockKey) {
+        RLock lock = redissonClient.getLock(lockKey);
+        try {
+            if (lock.isHeldByCurrentThread()) {
+                lock.unlock();
+                log.debug("成功释放分布式锁: {}", lockKey);
+            } else {
+                log.warn("尝试释放不属于当前线程的锁: {}", lockKey);
+            }
+        } catch (Exception e) {
+            log.error("释放分布式锁失败: {}", lockKey, e);
+        }
+    }
+
+    /**
+     * 检查锁是否被持有
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 是否被持有
+     */
+    public boolean isLocked(String lockKey) {
+        RLock lock = redissonClient.getLock(lockKey);
+        return lock.isLocked();
+    }
+
+    /**
+     * 检查锁是否被当前线程持有
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 是否被当前线程持有
+     */
+    public boolean isHeldByCurrentThread(String lockKey) {
+        RLock lock = redissonClient.getLock(lockKey);
+        return lock.isHeldByCurrentThread();
+    }
+
+    /**
+     * 获取锁的剩余时间
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 剩余时间（毫秒），-1表示永不过期，-2表示锁不存在
+     */
+    public long getRemainingTimeToLive(String lockKey) {
+        RLock lock = redissonClient.getLock(lockKey);
+        return lock.remainTimeToLive();
+    }
+
+    /**
+     * 强制释放锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 是否释放成功
+     */
+    public boolean forceUnlock(String lockKey) {
+        RLock lock = redissonClient.getLock(lockKey);
+        try {
+            boolean result = lock.forceUnlock();
+            if (result) {
+                log.info("强制释放分布式锁成功: {}", lockKey);
+            } else {
+                log.warn("强制释放分布式锁失败，锁可能不存在: {}", lockKey);
+            }
+            return result;
+        } catch (Exception e) {
+            log.error("强制释放分布式锁异常: {}", lockKey, e);
+            return false;
+        }
+    }
+
+    /**
+     * 执行带锁的操作
+     *
+     * @param lockKey   锁的键
+     * @param waitTime  等待时间（秒）
+     * @param leaseTime 锁持有时间（秒）
+     * @param task      要执行的任务
+     *
+     * @return 是否执行成功
+     */
+    public boolean executeWithLock(String lockKey, long waitTime, long leaseTime, Runnable task) {
+        if (tryLock(lockKey, waitTime, leaseTime)) {
+            try {
+                task.run();
+                return true;
+            } catch (Exception e) {
+                log.error("执行带锁操作失败: {}", lockKey, e);
+                return false;
+            } finally {
+                unlock(lockKey);
+            }
+        }
+        return false;
+    }
+
+    /**
+     * 执行带锁的操作（使用默认时间）
+     *
+     * @param lockKey 锁的键
+     * @param task    要执行的任务
+     *
+     * @return 是否执行成功
+     */
+    public boolean executeWithLock(String lockKey, Runnable task) {
+        return executeWithLock(lockKey, 3, 30, task);
+    }
+
+    /**
+     * 获取可重入锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return RLock对象
+     */
+    public RLock getLock(String lockKey) {
+        return redissonClient.getLock(lockKey);
+    }
+
+    /**
+     * 获取公平锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 公平锁对象
+     */
+    public RLock getFairLock(String lockKey) {
+        return redissonClient.getFairLock(lockKey);
+    }
+
+    /**
+     * 获取读写锁的读锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 读锁对象
+     */
+    public RLock getReadLock(String lockKey) {
+        return redissonClient.getReadWriteLock(lockKey).readLock();
+    }
+
+    /**
+     * 获取读写锁的写锁
+     *
+     * @param lockKey 锁的键
+     *
+     * @return 写锁对象
+     */
+    public RLock getWriteLock(String lockKey) {
+        return redissonClient.getReadWriteLock(lockKey).writeLock();
+    }
+}

src/main/java/com/org/flashsalesystem/service/RedissonService.java

@@ -0,0 +1,357 @@
+package com.org.flashsalesystem.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.redisson.api.*;
+import org.redisson.api.listener.MessageListener;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.time.Duration;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 基于Redisson的增强Redis服务
+ * 提供更丰富的Redis操作功能
+ */
+@Service
+@Slf4j
+public class RedissonService {
+
+    @Autowired
+    private RedissonClient redissonClient;
+
+    // ==================== 字符串操作 ====================
+
+    /**
+     * 设置字符串值
+     */
+    public void set(String key, Object value) {
+        RBucket<Object> bucket = redissonClient.getBucket(key);
+        bucket.set(value);
+    }
+
+    /**
+     * 设置字符串值并指定过期时间
+     */
+    public void set(String key, Object value, long timeout, TimeUnit unit) {
+        RBucket<Object> bucket = redissonClient.getBucket(key);
+        bucket.set(value, timeout, unit);
+    }
+
+    /**
+     * 设置字符串值并指定过期时间（Duration）
+     */
+    public void set(String key, Object value, Duration duration) {
+        RBucket<Object> bucket = redissonClient.getBucket(key);
+        bucket.set(value, duration);
+    }
+
+    /**
+     * 获取字符串值
+     */
+    public <T> T get(String key) {
+        RBucket<T> bucket = redissonClient.getBucket(key);
+        return bucket.get();
+    }
+
+    /**
+     * 删除键
+     */
+    public boolean delete(String key) {
+        return redissonClient.getBucket(key).delete();
+    }
+
+    /**
+     * 检查键是否存在
+     */
+    public boolean exists(String key) {
+        return redissonClient.getBucket(key).isExists();
+    }
+
+    /**
+     * 设置过期时间
+     */
+    public boolean expire(String key, long timeout, TimeUnit unit) {
+        return redissonClient.getBucket(key).expire(timeout, unit);
+    }
+
+    /**
+     * 获取剩余过期时间
+     */
+    public long getExpire(String key) {
+        return redissonClient.getBucket(key).remainTimeToLive();
+    }
+
+    // ==================== 哈希操作 ====================
+
+    /**
+     * 设置哈希字段值
+     */
+    public <T> T hSet(String key, String field, Object value) {
+        RMap<String, Object> map = redissonClient.getMap(key);
+        return (T) map.put(field, value);
+    }
+
+    /**
+     * 获取哈希字段值
+     */
+    public <T> T hGet(String key, String field) {
+        RMap<String, T> map = redissonClient.getMap(key);
+        return map.get(field);
+    }
+
+    /**
+     * 删除哈希字段
+     */
+    public <T> T hDel(String key, String field) {
+        RMap<String, T> map = redissonClient.getMap(key);
+        return map.remove(field);
+    }
+
+    /**
+     * 检查哈希字段是否存在
+     */
+    public boolean hExists(String key, String field) {
+        RMap<String, Object> map = redissonClient.getMap(key);
+        return map.containsKey(field);
+    }
+
+    /**
+     * 获取哈希所有字段和值
+     */
+    public <T> Map<String, T> hGetAll(String key) {
+        RMap<String, T> map = redissonClient.getMap(key);
+        return map.readAllMap();
+    }
+
+    /**
+     * 批量设置哈希字段
+     */
+    public void hMSet(String key, Map<String, Object> hash) {
+        RMap<String, Object> map = redissonClient.getMap(key);
+        map.putAll(hash);
+    }
+
+    // ==================== 列表操作 ====================
+
+    /**
+     * 左侧推入列表
+     */
+    public int lPush(String key, Object... values) {
+        RList<Object> list = redissonClient.getList(key);
+        for (Object value : values) {
+            list.add(0, value);
+        }
+        return list.size();
+    }
+
+    /**
+     * 右侧推入列表
+     */
+    public int rPush(String key, Object... values) {
+        RList<Object> list = redissonClient.getList(key);
+        Collections.addAll(list, values);
+        return list.size();
+    }
+
+    /**
+     * 左侧弹出列表
+     */
+    public <T> T lPop(String key) {
+        RList<T> list = redissonClient.getList(key);
+        return list.isEmpty() ? null : list.remove(0);
+    }
+
+    /**
+     * 右侧弹出列表
+     */
+    public <T> T rPop(String key) {
+        RList<T> list = redissonClient.getList(key);
+        return list.isEmpty() ? null : list.remove(list.size() - 1);
+    }
+
+    /**
+     * 获取列表长度
+     */
+    public int lLen(String key) {
+        RList<Object> list = redissonClient.getList(key);
+        return list.size();
+    }
+
+    /**
+     * 获取列表范围内的元素
+     */
+    public <T> List<T> lRange(String key, int start, int end) {
+        RList<T> list = redissonClient.getList(key);
+        if (end == -1) {
+            end = list.size() - 1;
+        }
+        return list.range(start, end);
+    }
+
+    // ==================== 集合操作 ====================
+
+    /**
+     * 添加集合成员
+     */
+    public boolean sAdd(String key, Object... values) {
+        RSet<Object> set = redissonClient.getSet(key);
+        boolean result = false;
+        for (Object value : values) {
+            result |= set.add(value);
+        }
+        return result;
+    }
+
+    /**
+     * 删除集合成员
+     */
+    public boolean sRem(String key, Object... values) {
+        RSet<Object> set = redissonClient.getSet(key);
+        boolean result = false;
+        for (Object value : values) {
+            result |= set.remove(value);
+        }
+        return result;
+    }
+
+    /**
+     * 检查是否为集合成员
+     */
+    public boolean sIsMember(String key, Object value) {
+        RSet<Object> set = redissonClient.getSet(key);
+        return set.contains(value);
+    }
+
+    /**
+     * 获取集合所有成员
+     */
+    public <T> Set<T> sMembers(String key) {
+        RSet<T> set = redissonClient.getSet(key);
+        return set.readAll();
+    }
+
+    /**
+     * 获取集合大小
+     */
+    public int sCard(String key) {
+        RSet<Object> set = redissonClient.getSet(key);
+        return set.size();
+    }
+
+    // ==================== 有序集合操作 ====================
+
+    /**
+     * 添加有序集合成员
+     */
+    public boolean zAdd(String key, double score, Object member) {
+        RScoredSortedSet<Object> sortedSet = redissonClient.getScoredSortedSet(key);
+        return sortedSet.add(score, member);
+    }
+
+    /**
+     * 删除有序集合成员
+     */
+    public boolean zRem(String key, Object... members) {
+        RScoredSortedSet<Object> sortedSet = redissonClient.getScoredSortedSet(key);
+        boolean result = false;
+        for (Object member : members) {
+            result |= sortedSet.remove(member);
+        }
+        return result;
+    }
+
+    /**
+     * 获取有序集合成员分数
+     */
+    public Double zScore(String key, Object member) {
+        RScoredSortedSet<Object> sortedSet = redissonClient.getScoredSortedSet(key);
+        return sortedSet.getScore(member);
+    }
+
+    /**
+     * 获取有序集合范围内的成员
+     */
+    public <T> Collection<T> zRange(String key, int start, int end) {
+        RScoredSortedSet<T> sortedSet = redissonClient.getScoredSortedSet(key);
+        return sortedSet.valueRange(start, end);
+    }
+
+    /**
+     * 获取有序集合大小
+     */
+    public int zCard(String key) {
+        RScoredSortedSet<Object> sortedSet = redissonClient.getScoredSortedSet(key);
+        return sortedSet.size();
+    }
+
+    // ==================== 发布订阅 ====================
+
+    /**
+     * 发布消息
+     */
+    public long publish(String channel, Object message) {
+        RTopic topic = redissonClient.getTopic(channel);
+        return topic.publish(message);
+    }
+
+    /**
+     * 订阅消息
+     */
+    public void subscribe(String channel, MessageListener<Object> listener) {
+        RTopic topic = redissonClient.getTopic(channel);
+        topic.addListener(Object.class, listener);
+    }
+
+    // ==================== 原子操作 ====================
+
+    /**
+     * 原子递增
+     */
+    public long incr(String key) {
+        RAtomicLong atomicLong = redissonClient.getAtomicLong(key);
+        return atomicLong.incrementAndGet();
+    }
+
+    /**
+     * 原子递增指定值
+     */
+    public long incrBy(String key, long delta) {
+        RAtomicLong atomicLong = redissonClient.getAtomicLong(key);
+        return atomicLong.addAndGet(delta);
+    }
+
+    /**
+     * 原子递减
+     */
+    public long decr(String key) {
+        RAtomicLong atomicLong = redissonClient.getAtomicLong(key);
+        return atomicLong.decrementAndGet();
+    }
+
+    /**
+     * 原子递减指定值
+     */
+    public long decrBy(String key, long delta) {
+        RAtomicLong atomicLong = redissonClient.getAtomicLong(key);
+        return atomicLong.addAndGet(-delta);
+    }
+
+    // ==================== 工具方法 ====================
+
+    /**
+     * 获取Redisson客户端
+     */
+    public RedissonClient getRedissonClient() {
+        return redissonClient;
+    }
+
+    /**
+     * 执行Lua脚本
+     */
+    public <T> T evalSha(String shaDigest, RScript.ReturnType returnType, List<Object> keys, Object... values) {
+        RScript script = redissonClient.getScript();
+        return script.evalSha(RScript.Mode.READ_WRITE, shaDigest, returnType, keys, values);
+    }
+}

src/main/java/com/org/flashsalesystem/service/UserService.java

@@ -0,0 +1,314 @@
+package com.org.flashsalesystem.service;
+
+import com.org.flashsalesystem.dto.UserDTO;
+import com.org.flashsalesystem.entity.User;
+import com.org.flashsalesystem.repository.UserRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 用户服务类
+ * 实现用户注册、登录、信息管理等功能
+ * 使用Redis缓存用户信息和会话管理
+ */
+@Service
+@Slf4j
+public class UserService {
+
+    private static final String USER_CACHE_PREFIX = "user:";
+    private static final String USER_TOKEN_PREFIX = "user_token:";
+    private static final String ONLINE_USERS_SET = "online_users";
+    private final BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
+    @Autowired
+    private UserRepository userRepository;
+    @Autowired
+    private RedisService redisService;
+    @Value("${flashsale.cache.user-expire-minutes:30}")
+    private int userCacheExpireMinutes;
+
+    /**
+     * 用户注册
+     */
+    @Transactional
+    public UserDTO register(UserDTO.RegisterDTO registerDTO) {
+        log.info("用户注册: {}", registerDTO.getUsername());
+
+        // 验证确认密码
+        if (!registerDTO.getPassword().equals(registerDTO.getConfirmPassword())) {
+            throw new RuntimeException("两次输入的密码不一致");
+        }
+
+        // 检查用户名是否已存在
+        if (userRepository.existsByUsername(registerDTO.getUsername())) {
+            throw new RuntimeException("用户名已存在");
+        }
+
+        // 检查邮箱是否已存在
+        if (registerDTO.getEmail() != null && userRepository.existsByEmail(registerDTO.getEmail())) {
+            throw new RuntimeException("邮箱已被注册");
+        }
+
+        // 检查手机号是否已存在
+        if (registerDTO.getPhone() != null && userRepository.existsByPhone(registerDTO.getPhone())) {
+            throw new RuntimeException("手机号已被注册");
+        }
+
+        // 创建用户实体
+        User user = new User();
+        user.setUsername(registerDTO.getUsername());
+        user.setPassword(encryptPassword(registerDTO.getPassword()));
+        user.setEmail(registerDTO.getEmail());
+        user.setPhone(registerDTO.getPhone());
+
+        // 保存到数据库
+        user = userRepository.save(user);
+
+        // 缓存用户信息
+        cacheUserInfo(user);
+
+        // 转换为DTO返回
+        UserDTO userDTO = new UserDTO();
+        BeanUtils.copyProperties(user, userDTO);
+        userDTO.setPassword(null); // 不返回密码
+
+        log.info("用户注册成功: {}, ID: {}", user.getUsername(), user.getId());
+        return userDTO;
+    }
+
+    /**
+     * 用户登录
+     */
+    public Map<String, Object> login(UserDTO.LoginDTO loginDTO) {
+        log.info("用户登录: {}", loginDTO.getUsername());
+
+        // 先根据用户名查找用户
+        Optional<User> userOpt = userRepository.findByUsername(loginDTO.getUsername());
+        if (!userOpt.isPresent()) {
+            throw new RuntimeException("用户名或密码错误");
+        }
+
+        User user = userOpt.get();
+
+        // 验证密码
+        if (!verifyPassword(loginDTO.getPassword(), user.getPassword())) {
+            throw new RuntimeException("用户名或密码错误");
+        }
+
+        // 生成token
+        String token = generateToken();
+
+        // 缓存用户信息和token
+        cacheUserInfo(user);
+        cacheUserToken(token, user.getId());
+
+        // 添加到在线用户集合
+        redisService.sAdd(ONLINE_USERS_SET, user.getId());
+
+        // 转换为DTO
+        UserDTO userDTO = new UserDTO();
+        BeanUtils.copyProperties(user, userDTO);
+        userDTO.setPassword(null);
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("token", token);
+        result.put("user", userDTO);
+
+        log.info("用户登录成功: {}, ID: {}", user.getUsername(), user.getId());
+        return result;
+    }
+
+    /**
+     * 用户登出
+     */
+    public void logout(String token) {
+        if (token == null) {
+            return;
+        }
+
+        // 获取用户ID
+        Object userIdObj = redisService.get(USER_TOKEN_PREFIX + token);
+        if (userIdObj != null) {
+            Long userId = Long.valueOf(userIdObj.toString());
+
+            // 从在线用户集合中移除
+            redisService.sRem(ONLINE_USERS_SET, userId);
+
+            log.info("用户登出: {}", userId);
+        }
+
+        // 删除token
+        redisService.delete(USER_TOKEN_PREFIX + token);
+    }
+
+    /**
+     * 根据token获取用户信息
+     */
+    public UserDTO getUserByToken(String token) {
+        if (token == null) {
+            return null;
+        }
+
+        // 从Redis获取用户ID
+        Object userIdObj = redisService.get(USER_TOKEN_PREFIX + token);
+        if (userIdObj == null) {
+            return null;
+        }
+
+        Long userId = Long.valueOf(userIdObj.toString());
+        return getUserById(userId);
+    }
+
+    /**
+     * 根据ID获取用户信息
+     */
+    public UserDTO getUserById(Long userId) {
+        if (userId == null) {
+            return null;
+        }
+
+        // 先从缓存获取
+        String cacheKey = USER_CACHE_PREFIX + userId;
+        Map<Object, Object> userMap = redisService.hGetAll(cacheKey);
+
+        if (!userMap.isEmpty()) {
+            // 从缓存构造用户对象
+            UserDTO userDTO = new UserDTO();
+            userDTO.setId(userId);
+            userDTO.setUsername((String) userMap.get("username"));
+            userDTO.setEmail((String) userMap.get("email"));
+            userDTO.setPhone((String) userMap.get("phone"));
+            return userDTO;
+        }
+
+        // 缓存中没有，从数据库获取
+        Optional<User> userOpt = userRepository.findById(userId);
+        if (!userOpt.isPresent()) {
+            return null;
+        }
+
+        User user = userOpt.get();
+
+        // 缓存用户信息
+        cacheUserInfo(user);
+
+        // 转换为DTO
+        UserDTO userDTO = new UserDTO();
+        BeanUtils.copyProperties(user, userDTO);
+        userDTO.setPassword(null);
+
+        return userDTO;
+    }
+
+    /**
+     * 更新用户信息
+     */
+    @Transactional
+    public UserDTO updateUser(Long userId, UserDTO.UpdateDTO updateDTO) {
+        log.info("更新用户信息: {}", userId);
+
+        Optional<User> userOpt = userRepository.findById(userId);
+        if (!userOpt.isPresent()) {
+            throw new RuntimeException("用户不存在");
+        }
+
+        User user = userOpt.get();
+
+        // 检查邮箱是否被其他用户使用
+        if (updateDTO.getEmail() != null && !updateDTO.getEmail().equals(user.getEmail())) {
+            if (userRepository.existsByEmail(updateDTO.getEmail())) {
+                throw new RuntimeException("邮箱已被其他用户使用");
+            }
+            user.setEmail(updateDTO.getEmail());
+        }
+
+        // 检查手机号是否被其他用户使用
+        if (updateDTO.getPhone() != null && !updateDTO.getPhone().equals(user.getPhone())) {
+            if (userRepository.existsByPhone(updateDTO.getPhone())) {
+                throw new RuntimeException("手机号已被其他用户使用");
+            }
+            user.setPhone(updateDTO.getPhone());
+        }
+
+        // 保存到数据库
+        user = userRepository.save(user);
+
+        // 更新缓存
+        cacheUserInfo(user);
+
+        // 转换为DTO
+        UserDTO userDTO = new UserDTO();
+        BeanUtils.copyProperties(user, userDTO);
+        userDTO.setPassword(null);
+
+        log.info("用户信息更新成功: {}", userId);
+        return userDTO;
+    }
+
+    /**
+     * 检查用户是否在线
+     */
+    public boolean isUserOnline(Long userId) {
+        return redisService.sIsMember(ONLINE_USERS_SET, userId);
+    }
+
+    /**
+     * 获取在线用户数量
+     */
+    public long getOnlineUserCount() {
+        return redisService.sCard(ONLINE_USERS_SET);
+    }
+
+    /**
+     * 缓存用户信息
+     */
+    private void cacheUserInfo(User user) {
+        String cacheKey = USER_CACHE_PREFIX + user.getId();
+        Map<String, Object> userMap = new HashMap<>();
+        userMap.put("username", user.getUsername());
+        userMap.put("email", user.getEmail());
+        userMap.put("phone", user.getPhone());
+
+        redisService.hMSet(cacheKey, userMap);
+        redisService.expire(cacheKey, userCacheExpireMinutes, TimeUnit.MINUTES);
+    }
+
+    /**
+     * 缓存用户token
+     */
+    private void cacheUserToken(String token, Long userId) {
+        String tokenKey = USER_TOKEN_PREFIX + token;
+        redisService.set(tokenKey, userId, userCacheExpireMinutes, TimeUnit.MINUTES);
+    }
+
+    /**
+     * 生成token
+     */
+    private String generateToken() {
+        return UUID.randomUUID().toString().replace("-", "");
+    }
+
+    /**
+     * 加密密码
+     */
+    private String encryptPassword(String password) {
+        return passwordEncoder.encode(password);
+    }
+
+    /**
+     * 验证密码
+     */
+    private boolean verifyPassword(String rawPassword, String encodedPassword) {
+        return passwordEncoder.matches(rawPassword, encodedPassword);
+    }
+}

src/main/java/com/org/flashsalesystem/util/JSPFunctions.java

@@ -0,0 +1,215 @@
+package com.org.flashsalesystem.util;
+
+import java.math.BigDecimal;
+import java.text.DecimalFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * JSP自定义函数工具类
+ * 提供在JSP页面中使用的格式化函数
+ */
+public class JSPFunctions {
+
+    private static final DecimalFormat PRICE_FORMAT = new DecimalFormat("#,##0.00");
+    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+    private static final SimpleDateFormat SHORT_DATE_FORMAT = new SimpleDateFormat("MM-dd HH:mm");
+
+    /**
+     * 格式化价格
+     *
+     * @param price 价格
+     *
+     * @return 格式化后的价格字符串
+     */
+    public static String formatPrice(Object price) {
+        if (price == null) {
+            return "0.00";
+        }
+
+        try {
+            if (price instanceof BigDecimal) {
+                return PRICE_FORMAT.format(price);
+            } else if (price instanceof Number) {
+                return PRICE_FORMAT.format(((Number) price).doubleValue());
+            } else {
+                double priceValue = Double.parseDouble(price.toString());
+                return PRICE_FORMAT.format(priceValue);
+            }
+        } catch (Exception e) {
+            return "0.00";
+        }
+    }
+
+    /**
+     * 格式化日期时间
+     *
+     * @param date 日期
+     *
+     * @return 格式化后的日期字符串
+     */
+    public static String formatDateTime(Date date) {
+        if (date == null) {
+            return "";
+        }
+        return DATE_FORMAT.format(date);
+    }
+
+    /**
+     * 格式化短日期时间
+     *
+     * @param date 日期
+     *
+     * @return 格式化后的短日期字符串
+     */
+    public static String formatShortDateTime(Date date) {
+        if (date == null) {
+            return "";
+        }
+        return SHORT_DATE_FORMAT.format(date);
+    }
+
+    /**
+     * 计算折扣百分比
+     *
+     * @param originalPrice 原价
+     * @param salePrice     售价
+     *
+     * @return 折扣百分比
+     */
+    public static String calculateDiscount(Object originalPrice, Object salePrice) {
+        try {
+            double original = parsePrice(originalPrice);
+            double sale = parsePrice(salePrice);
+
+            if (original <= 0 || sale <= 0) {
+                return "0%";
+            }
+
+            double discount = (original - sale) / original * 100;
+            return String.format("%.0f%%", discount);
+        } catch (Exception e) {
+            return "0%";
+        }
+    }
+
+    /**
+     * 格式化库存数量
+     *
+     * @param stock 库存
+     *
+     * @return 格式化后的库存字符串
+     */
+    public static String formatStock(Object stock) {
+        if (stock == null) {
+            return "0";
+        }
+
+        try {
+            int stockValue = Integer.parseInt(stock.toString());
+            if (stockValue <= 0) {
+                return "缺货";
+            } else if (stockValue < 10) {
+                return "仅剩" + stockValue + "件";
+            } else {
+                return stockValue + "件";
+            }
+        } catch (Exception e) {
+            return "0";
+        }
+    }
+
+    /**
+     * 截断文本
+     *
+     * @param text      文本
+     * @param maxLength 最大长度
+     *
+     * @return 截断后的文本
+     */
+    public static String truncateText(String text, int maxLength) {
+        if (text == null || text.length() <= maxLength) {
+            return text;
+        }
+        return text.substring(0, maxLength) + "...";
+    }
+
+    /**
+     * 格式化订单状态
+     *
+     * @param status 状态码
+     *
+     * @return 状态描述
+     */
+    public static String formatOrderStatus(Object status) {
+        if (status == null) {
+            return "未知";
+        }
+
+        try {
+            int statusCode = Integer.parseInt(status.toString());
+            switch (statusCode) {
+                case 1:
+                    return "待支付";
+                case 2:
+                    return "已支付";
+                case 3:
+                    return "已发货";
+                case 4:
+                    return "已完成";
+                case 5:
+                    return "已取消";
+                default:
+                    return "未知";
+            }
+        } catch (Exception e) {
+            return "未知";
+        }
+    }
+
+    /**
+     * 格式化秒杀状态
+     *
+     * @param status 状态码
+     *
+     * @return 状态描述
+     */
+    public static String formatFlashSaleStatus(Object status) {
+        if (status == null) {
+            return "未知";
+        }
+
+        try {
+            int statusCode = Integer.parseInt(status.toString());
+            switch (statusCode) {
+                case 1:
+                    return "未开始";
+                case 2:
+                    return "进行中";
+                case 3:
+                    return "已结束";
+                default:
+                    return "未知";
+            }
+        } catch (Exception e) {
+            return "未知";
+        }
+    }
+
+    /**
+     * 解析价格
+     */
+    private static double parsePrice(Object price) {
+        if (price == null) {
+            return 0.0;
+        }
+
+        if (price instanceof BigDecimal) {
+            return ((BigDecimal) price).doubleValue();
+        } else if (price instanceof Number) {
+            return ((Number) price).doubleValue();
+        } else {
+            return Double.parseDouble(price.toString());
+        }
+    }
+}

src/main/java/com/org/flashsalesystem/util/PasswordGenerator.java

@@ -0,0 +1,35 @@
+package com.org.flashsalesystem.util;
+
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+/**
+ * 密码生成工具
+ * 用于生成BCrypt加密的密码
+ */
+public class PasswordGenerator {
+
+    public static void main(String[] args) {
+        BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
+
+        // 生成演示账号密码
+        String demo1Password = encoder.encode("123456");
+        String demo2Password = encoder.encode("123456");
+        String adminPassword = encoder.encode("admin123");
+
+        System.out.println("=== 演示账号密码哈希 ===");
+        System.out.println("demo1 (123456): " + demo1Password);
+        System.out.println("demo2 (123456): " + demo2Password);
+        System.out.println("admin (admin123): " + adminPassword);
+
+        System.out.println("\n=== SQL更新语句 ===");
+        System.out.println("UPDATE users SET password = '" + demo1Password + "' WHERE username = 'demo1';");
+        System.out.println("UPDATE users SET password = '" + demo2Password + "' WHERE username = 'demo2';");
+        System.out.println("UPDATE users SET password = '" + adminPassword + "' WHERE username = 'admin';");
+
+        // 验证密码
+        System.out.println("\n=== 密码验证 ===");
+        System.out.println("demo1密码验证: " + encoder.matches("123456", demo1Password));
+        System.out.println("demo2密码验证: " + encoder.matches("123456", demo2Password));
+        System.out.println("admin密码验证: " + encoder.matches("admin123", adminPassword));
+    }
+}

src/main/resources/META-INF/flashsale-functions.tld

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<taglib xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xmlns="http://java.sun.com/xml/ns/javaee"
+        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
+        http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
+        version="2.1">
+
+    <description>FlashSale System Custom Functions</description>
+    <display-name>FlashSale Functions</display-name>
+    <tlib-version>1.0</tlib-version>
+    <short-name>fn</short-name>
+    <uri>http://flashsale.org/functions</uri>
+
+    <!-- 格式化价格函数 -->
+    <function>
+        <description>Format price with currency symbol</description>
+        <name>formatPrice</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatPrice(java.lang.Object)</function-signature>
+        <example>${fn:formatPrice(product.price)}</example>
+    </function>
+
+    <!-- 格式化日期时间函数 -->
+    <function>
+        <description>Format date time</description>
+        <name>formatDateTime</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatDateTime(java.util.Date)</function-signature>
+        <example>${fn:formatDateTime(order.createdAt)}</example>
+    </function>
+
+    <!-- 格式化短日期时间函数 -->
+    <function>
+        <description>Format short date time</description>
+        <name>formatShortDateTime</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatShortDateTime(java.util.Date)</function-signature>
+        <example>${fn:formatShortDateTime(flashsale.startTime)}</example>
+    </function>
+
+    <!-- 计算折扣函数 -->
+    <function>
+        <description>Calculate discount percentage</description>
+        <name>calculateDiscount</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String calculateDiscount(java.lang.Object, java.lang.Object)</function-signature>
+        <example>${fn:calculateDiscount(product.price, flashsale.flashPrice)}</example>
+    </function>
+
+    <!-- 格式化库存函数 -->
+    <function>
+        <description>Format stock quantity</description>
+        <name>formatStock</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatStock(java.lang.Object)</function-signature>
+        <example>${fn:formatStock(product.stock)}</example>
+    </function>
+
+    <!-- 截断文本函数 -->
+    <function>
+        <description>Truncate text to specified length</description>
+        <name>truncateText</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String truncateText(java.lang.String, int)</function-signature>
+        <example>${fn:truncateText(product.description, 50)}</example>
+    </function>
+
+    <!-- 格式化订单状态函数 -->
+    <function>
+        <description>Format order status</description>
+        <name>formatOrderStatus</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatOrderStatus(java.lang.Object)</function-signature>
+        <example>${fn:formatOrderStatus(order.status)}</example>
+    </function>
+
+    <!-- 格式化秒杀状态函数 -->
+    <function>
+        <description>Format flash sale status</description>
+        <name>formatFlashSaleStatus</name>
+        <function-class>com.org.flashsalesystem.util.JSPFunctions</function-class>
+        <function-signature>java.lang.String formatFlashSaleStatus(java.lang.Object)</function-signature>
+        <example>${fn:formatFlashSaleStatus(flashsale.status)}</example>
+    </function>
+
+</taglib>

src/main/resources/application-web.properties

@@ -0,0 +1,8 @@
+# Spring MVC配置
+spring.mvc.view.prefix=/WEB-INF/views/
+spring.mvc.view.suffix=.jsp
+# 静态资源配置
+spring.web.resources.static-locations=classpath:/static/,classpath:/public/
+spring.web.resources.cache.period=3600
+# JSP配置
+server.servlet.jsp.init-parameters.development=true

src/main/resources/application.yml

@@ -0,0 +1,158 @@
+server:
+  port: 8080
+  servlet:
+    context-path: /
+
+spring:
+  application:
+    name: flash-sale-system
+  
+  # 数据源配置
+  datasource:
+    url: jdbc:mysql://localhost:3306/flash_sale_db?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai
+    username: root
+    password: root
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    hikari:
+      maximum-pool-size: 20
+      minimum-idle: 5
+      connection-timeout: 30000
+      idle-timeout: 600000
+      max-lifetime: 1800000
+  
+  # JPA配置
+  jpa:
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.MySQL8Dialect
+        format_sql: true
+  
+  # Redis集群配置
+  redis:
+    cluster:
+      nodes: 42.192.62.91:7000,42.192.62.91:7001,42.192.62.91:7002,42.192.62.91:7003,42.192.62.91:7004,42.192.62.91:7005
+    password: 6HU3cw1drNjfQ0zo1Uyx
+    timeout: 5000
+    jedis:
+      pool:
+        max-active: 20
+        max-idle: 10
+        min-idle: 5
+        max-wait: 3000
+  
+  # JSP配置
+  mvc:
+    view:
+      prefix: /WEB-INF/views/
+      suffix: .jsp
+  
+  # JSON配置
+  jackson:
+    date-format: yyyy-MM-dd HH:mm:ss
+    time-zone: GMT+8
+    default-property-inclusion: non_null
+    serialization:
+      write-dates-as-timestamps: false
+    deserialization:
+      fail-on-unknown-properties: false
+
+# 日志配置
+logging:
+  level:
+    com.org.flashsalesystem: DEBUG
+    org.springframework.data.redis: DEBUG
+    org.hibernate.SQL: DEBUG
+    org.hibernate.type.descriptor.sql.BasicBinder: TRACE
+  pattern:
+    console: "%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n"
+    file: "%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n"
+  file:
+    name: logs/flash-sale-system.log
+
+# 自定义配置
+flashsale:
+  # 秒杀配置
+  seckill:
+    # 每个用户每个商品最大购买数量
+    max-quantity-per-user: 1
+    # 接口限流配置（每分钟最大请求次数）
+    rate-limit:
+      max-requests-per-minute: 10
+    # 库存预热配置
+    stock-preload:
+      # 是否启用库存预热
+      enabled: true
+      # 预热提前时间（分钟）
+      advance-minutes: 30
+  
+  # 购物车配置
+  cart:
+    # 购物车过期时间（天）
+    expire-days: 7
+    # 最大商品种类数
+    max-items: 20
+  
+  # 缓存配置
+  cache:
+    # 用户信息缓存过期时间（分钟）
+    user-expire-minutes: 30
+    # 商品信息缓存过期时间（分钟）
+    product-expire-minutes: 60
+    # 秒杀活动缓存过期时间（分钟）
+    flashsale-expire-minutes: 10
+  
+  # 消息队列配置
+  mq:
+    # 订单状态变更通知频道
+    order-status-channel: order:status:change
+    # 库存变更通知频道
+    stock-change-channel: stock:change
+    # 秒杀结果通知频道
+    flashsale-result-channel: flashsale:result
+
+# 监控配置
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info,metrics,prometheus
+  endpoint:
+    health:
+      show-details: always
+  metrics:
+    export:
+      prometheus:
+        enabled: true
+
+# Knife4j配置
+knife4j:
+  enable: true
+  setting:
+    language: zh_cn
+    enable-swagger-models: true
+    enable-document-manage: true
+    swagger-model-name: 实体类列表
+    enable-version: false
+    enable-reload-cache-parameter: false
+    enable-after-script: true
+    enable-filter-multipart-api-method-type: POST
+    enable-filter-multipart-apis: false
+    enable-request-cache: true
+    enable-host: false
+    enable-host-text: ""
+
+# SpringDoc配置
+springdoc:
+  swagger-ui:
+    path: /swagger-ui.html
+    tags-sorter: alpha
+    operations-sorter: alpha
+  api-docs:
+    path: /v3/api-docs
+  group-configs:
+    - group: 'default'
+      paths-to-match: '/**'
+      packages-to-scan: com.org.flashsalesystem.controller

src/main/resources/lua/cart_operation.lua

@@ -0,0 +1,50 @@
+-- 购物车操作Lua脚本
+-- 功能：原子性地更新购物车并检查库存
+-- 参数：KEYS[1] = 购物车key, KEYS[2] = 库存key, ARGV[1] = 商品ID, ARGV[2] = 数量, ARGV[3] = 操作类型(add/update/remove)
+-- 返回值：成功返回新数量，失败返回负数
+
+local cart_key = KEYS[1]
+local stock_key = KEYS[2]
+local product_id = ARGV[1]
+local quantity = tonumber(ARGV[2])
+local operation = ARGV[3]
+
+-- 获取当前库存
+local current_stock = redis.call('GET', stock_key)
+if current_stock == false then
+    return -1  -- 商品不存在
+end
+current_stock = tonumber(current_stock)
+
+-- 获取购物车中当前商品数量
+local cart_quantity = redis.call('HGET', cart_key, product_id)
+cart_quantity = cart_quantity and tonumber(cart_quantity) or 0
+
+local new_quantity = 0
+
+if operation == 'add' then
+    new_quantity = cart_quantity + quantity
+elseif operation == 'update' then
+    new_quantity = quantity
+elseif operation == 'remove' then
+    redis.call('HDEL', cart_key, product_id)
+    return 0
+else
+    return -2  -- 无效操作
+end
+
+-- 检查库存是否足够
+if new_quantity > current_stock then
+    return -3  -- 库存不足
+end
+
+-- 更新购物车
+if new_quantity > 0 then
+    redis.call('HSET', cart_key, product_id, new_quantity)
+    -- 设置购物车过期时间（7天）
+    redis.call('EXPIRE', cart_key, 7 * 24 * 3600)
+else
+    redis.call('HDEL', cart_key, product_id)
+end
+
+return new_quantity

src/main/resources/lua/distributed_lock.lua

@@ -0,0 +1,20 @@
+-- 分布式锁Lua脚本
+-- 功能：原子性地设置锁和过期时间
+-- 参数：KEYS[1] = 锁key, ARGV[1] = 锁值, ARGV[2] = 过期时间(秒)
+-- 返回值：成功返回"OK"，失败返回"FAIL"
+
+local lock_key = KEYS[1]
+local lock_value = ARGV[1]
+local expire_time = tonumber(ARGV[2])
+
+-- 尝试设置锁
+local result = redis.call('SETNX', lock_key, lock_value)
+
+if result == 1 then
+    -- 设置成功，设置过期时间
+    redis.call('EXPIRE', lock_key, expire_time)
+    return 'OK'
+else
+    -- 设置失败，锁已存在
+    return 'FAIL'
+end

src/main/resources/lua/flashsale.lua

@@ -0,0 +1,29 @@
+-- 秒杀Lua脚本
+-- 功能：原子性地检查库存并扣减，防止超卖
+-- 参数：KEYS[1] = 库存key, ARGV[1] = 扣减数量
+-- 返回值：成功返回剩余库存，失败返回负数
+
+local stock_key = KEYS[1]
+local quantity = tonumber(ARGV[1])
+
+-- 获取当前库存
+local current_stock = redis.call('GET', stock_key)
+
+-- 如果库存key不存在
+if current_stock == false then
+    return -1
+end
+
+-- 转换为数字
+current_stock = tonumber(current_stock)
+
+-- 检查库存是否足够
+if current_stock < quantity then
+    return -2
+end
+
+-- 原子性扣减库存
+local remaining_stock = redis.call('DECRBY', stock_key, quantity)
+
+-- 返回剩余库存
+return remaining_stock

src/main/resources/lua/rate_limit.lua

@@ -0,0 +1,31 @@
+-- 滑动窗口限流Lua脚本
+-- 功能：实现精确的滑动窗口限流
+-- 参数：KEYS[1] = 限流key, ARGV[1] = 最大请求数, ARGV[2] = 时间窗口(秒), ARGV[3] = 当前时间戳
+-- 返回值：允许返回1，拒绝返回0
+
+local rate_limit_key = KEYS[1]
+local max_requests = tonumber(ARGV[1])
+local time_window = tonumber(ARGV[2])
+local current_time = tonumber(ARGV[3])
+
+-- 计算窗口开始时间
+local window_start = current_time - time_window * 1000
+
+-- 移除过期的记录
+redis.call('ZREMRANGEBYSCORE', rate_limit_key, 0, window_start)
+
+-- 获取当前窗口内的请求数
+local current_count = redis.call('ZCARD', rate_limit_key)
+
+-- 检查是否超过限制
+if current_count >= max_requests then
+    return 0
+end
+
+-- 添加当前请求
+redis.call('ZADD', rate_limit_key, current_time, current_time)
+
+-- 设置过期时间
+redis.call('EXPIRE', rate_limit_key, time_window + 1)
+
+return 1

src/main/resources/lua/unlock.lua

@@ -0,0 +1,18 @@
+-- 释放分布式锁Lua脚本
+-- 功能：原子性地检查锁的值并删除
+-- 参数：KEYS[1] = 锁key, ARGV[1] = 锁值
+-- 返回值：成功返回1，失败返回0
+
+local lock_key = KEYS[1]
+local lock_value = ARGV[1]
+
+-- 获取当前锁的值
+local current_value = redis.call('GET', lock_key)
+
+-- 如果锁不存在或值不匹配
+if current_value == false or current_value ~= lock_value then
+    return 0
+end
+
+-- 删除锁
+return redis.call('DEL', lock_key)

src/main/resources/sql/demo-users.sql

@@ -0,0 +1,22 @@
+-- 演示账号快速创建脚本
+-- 密码都是明文对应的值：demo1/demo2/admin的密码分别是123456/123456/admin123
+
+USE flash_sale_db;
+
+-- 插入演示用户（密码已加密）
+INSERT INTO users (username, password, email, phone, status, created_at, updated_at)
+VALUES ('demo1', '$2a$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2uheWG/igi.', 'demo1@example.com', '13800138001', 1,
+        NOW(), NOW()),
+       ('demo2', '$2a$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2uheWG/igi.', 'demo2@example.com', '13800138002', 1,
+        NOW(), NOW()),
+       ('admin', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'admin@example.com', '13800138000', 1,
+        NOW(), NOW())
+ON DUPLICATE KEY UPDATE username   = VALUES(username),
+                        email      = VALUES(email),
+                        phone      = VALUES(phone),
+                        updated_at = NOW();
+
+-- 验证插入结果
+SELECT id, username, email, phone, status, created_at
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin');

src/main/resources/sql/fix-demo-users.sql

@@ -0,0 +1,33 @@
+-- 修复演示账号密码问题
+-- 使用正确的BCrypt加密密码
+
+USE flash_sale_db;
+
+-- 删除现有的演示用户（如果存在）
+DELETE
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin');
+
+-- 插入正确的演示用户
+-- demo1/demo2 密码: 123456
+-- admin 密码: admin123
+INSERT INTO users (username, password, email, phone, status, created_at, updated_at)
+VALUES ('demo1', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'demo1@example.com', '13800138001', 1,
+        NOW(), NOW()),
+       ('demo2', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'demo2@example.com', '13800138002', 1,
+        NOW(), NOW()),
+       ('admin', '$2a$10$DOwVJZHH.5PkZKJKJKJKJOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'admin@example.com', '13800138000', 1,
+        NOW(), NOW());
+
+-- 验证插入结果
+SELECT id, username, email, phone, status, created_at
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin');
+
+-- 显示密码提示
+SELECT '演示账号密码信息:' as info;
+SELECT 'demo1 / 123456' as account_info
+UNION ALL
+SELECT 'demo2 / 123456'
+UNION ALL
+SELECT 'admin / admin123';

src/main/resources/sql/schema.sql

@@ -0,0 +1,155 @@
+-- 秒杀系统数据库表结构
+-- 创建数据库和所有必要的表
+
+-- 创建数据库
+CREATE DATABASE IF NOT EXISTS flash_sale_db CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+USE flash_sale_db;
+
+-- ================================
+-- 1. 用户表
+-- ================================
+CREATE TABLE IF NOT EXISTS users
+(
+    id         BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '用户ID',
+    username   VARCHAR(50)  NOT NULL UNIQUE COMMENT '用户名',
+    password   VARCHAR(255) NOT NULL COMMENT '密码（加密）',
+    email      VARCHAR(100) COMMENT '邮箱',
+    phone      VARCHAR(20) COMMENT '手机号',
+    status     TINYINT   DEFAULT 1 COMMENT '状态：1-正常，0-禁用',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+
+    INDEX idx_username (username),
+    INDEX idx_email (email),
+    INDEX idx_phone (phone),
+    INDEX idx_status (status),
+    INDEX idx_created_at (created_at)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='用户表';
+
+-- ================================
+-- 2. 商品表
+-- ================================
+CREATE TABLE IF NOT EXISTS products
+(
+    id          BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '商品ID',
+    name        VARCHAR(200)   NOT NULL COMMENT '商品名称',
+    description TEXT COMMENT '商品描述',
+    price       DECIMAL(10, 2) NOT NULL COMMENT '商品价格',
+    stock       INT            NOT NULL DEFAULT 0 COMMENT '库存数量',
+    image_url   VARCHAR(500) COMMENT '商品图片URL',
+    status      TINYINT                 DEFAULT 1 COMMENT '状态：1-上架，0-下架',
+    created_at  TIMESTAMP               DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updated_at  TIMESTAMP               DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+
+    INDEX idx_name (name),
+    INDEX idx_price (price),
+    INDEX idx_stock (stock),
+    INDEX idx_status (status),
+    INDEX idx_created_at (created_at)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='商品表';
+
+-- ================================
+-- 3. 秒杀活动表
+-- ================================
+CREATE TABLE IF NOT EXISTS flash_sales
+(
+    id          BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '秒杀活动ID',
+    product_id  BIGINT         NOT NULL COMMENT '商品ID',
+    flash_price DECIMAL(10, 2) NOT NULL COMMENT '秒杀价格',
+    flash_stock INT            NOT NULL COMMENT '秒杀库存',
+    start_time  TIMESTAMP      NOT NULL COMMENT '开始时间',
+    end_time    TIMESTAMP      NOT NULL COMMENT '结束时间',
+    status      TINYINT   DEFAULT 1 COMMENT '状态：1-未开始，2-进行中，3-已结束',
+    created_at  TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updated_at  TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+
+    FOREIGN KEY (product_id) REFERENCES products (id) ON DELETE CASCADE,
+    INDEX idx_product_id (product_id),
+    INDEX idx_start_time (start_time),
+    INDEX idx_end_time (end_time),
+    INDEX idx_status (status),
+    INDEX idx_created_at (created_at)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='秒杀活动表';
+
+-- ================================
+-- 4. 订单表
+-- ================================
+CREATE TABLE IF NOT EXISTS orders
+(
+    id          BIGINT AUTO_INCREMENT PRIMARY KEY COMMENT '订单ID',
+    user_id     BIGINT         NOT NULL COMMENT '用户ID',
+    product_id  BIGINT         NOT NULL COMMENT '商品ID',
+    quantity    INT            NOT NULL DEFAULT 1 COMMENT '购买数量',
+    total_price DECIMAL(10, 2) NOT NULL COMMENT '总价',
+    status      TINYINT                 DEFAULT 1 COMMENT '状态：1-待支付，2-已支付，3-已发货，4-已完成，5-已取消',
+    order_type  TINYINT                 DEFAULT 1 COMMENT '订单类型：1-普通订单，2-秒杀订单',
+    created_at  TIMESTAMP               DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    updated_at  TIMESTAMP               DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE,
+    FOREIGN KEY (product_id) REFERENCES products (id) ON DELETE CASCADE,
+    INDEX idx_user_id (user_id),
+    INDEX idx_product_id (product_id),
+    INDEX idx_status (status),
+    INDEX idx_order_type (order_type),
+    INDEX idx_created_at (created_at),
+    INDEX idx_user_product (user_id, product_id)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='订单表';
+
+-- ================================
+-- 5. 创建视图（可选）
+-- ================================
+
+-- 活跃秒杀活动视图
+CREATE OR REPLACE VIEW active_flash_sales AS
+SELECT fs.id,
+       fs.product_id,
+       p.name  as product_name,
+       p.price as original_price,
+       fs.flash_price,
+       fs.flash_stock,
+       fs.start_time,
+       fs.end_time,
+       fs.status,
+       p.image_url
+FROM flash_sales fs
+         JOIN products p ON fs.product_id = p.id
+WHERE fs.status = 2
+  AND fs.start_time <= NOW()
+  AND fs.end_time > NOW()
+  AND p.status = 1;
+
+-- 订单统计视图
+CREATE OR REPLACE VIEW order_statistics AS
+SELECT DATE(created_at)                                as order_date,
+       COUNT(*)                                        as total_orders,
+       SUM(CASE WHEN status = 1 THEN 1 ELSE 0 END)     as pending_orders,
+       SUM(CASE WHEN status = 2 THEN 1 ELSE 0 END)     as paid_orders,
+       SUM(CASE WHEN status = 4 THEN 1 ELSE 0 END)     as completed_orders,
+       SUM(CASE WHEN order_type = 2 THEN 1 ELSE 0 END) as flash_sale_orders,
+       SUM(total_price)                                as total_amount
+FROM orders
+GROUP BY DATE(created_at)
+ORDER BY order_date DESC;
+
+-- ================================
+-- 6. 显示表结构
+-- ================================
+SHOW TABLES;
+
+-- 显示表结构信息
+SELECT TABLE_NAME    as '表名',
+       TABLE_COMMENT as '表注释',
+       TABLE_ROWS    as '估计行数'
+FROM information_schema.TABLES
+WHERE TABLE_SCHEMA = 'flash_sale_db'
+  AND TABLE_TYPE = 'BASE TABLE'
+ORDER BY TABLE_NAME;

src/main/resources/sql/test-data.sql

@@ -0,0 +1,161 @@
+-- 秒杀系统测试数据SQL脚本
+-- 包含演示账号、测试商品、秒杀活动等数据
+
+-- 创建数据库（如果不存在）
+CREATE DATABASE IF NOT EXISTS flash_sale_db CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+USE flash_sale_db;
+
+-- 清理现有数据（谨慎使用）
+-- DELETE FROM orders WHERE id > 0;
+-- DELETE FROM flash_sales WHERE id > 0;
+-- DELETE FROM products WHERE id > 0;
+-- DELETE FROM users WHERE id > 0;
+
+-- 重置自增ID
+-- ALTER TABLE users AUTO_INCREMENT = 1;
+-- ALTER TABLE products AUTO_INCREMENT = 1;
+-- ALTER TABLE flash_sales AUTO_INCREMENT = 1;
+-- ALTER TABLE orders AUTO_INCREMENT = 1;
+
+-- ================================
+-- 1. 插入测试用户数据
+-- ================================
+
+INSERT INTO users (username, password, email, phone, status, created_at, updated_at)
+VALUES
+-- 演示账号（密码都是明文，实际应用中应该加密）
+('demo1', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'demo1@example.com', '13800138001', 1, NOW(),
+ NOW()),
+('demo2', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'demo2@example.com', '13800138002', 1, NOW(),
+ NOW()),
+('admin', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'admin@example.com', '13800138000', 1, NOW(),
+ NOW()),
+
+-- 普通测试用户
+('testuser1', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'test1@example.com', '13800138003', 1,
+ NOW(), NOW()),
+('testuser2', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'test2@example.com', '13800138004', 1,
+ NOW(), NOW()),
+('testuser3', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'test3@example.com', '13800138005', 1,
+ NOW(), NOW()),
+('testuser4', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'test4@example.com', '13800138006', 1,
+ NOW(), NOW()),
+('testuser5', '$2a$10$N.zmdr9k7uOkXUJEkKWZaOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'test5@example.com', '13800138007', 1,
+ NOW(), NOW());
+
+-- ================================
+-- 2. 插入测试商品数据
+-- ================================
+
+INSERT INTO products (name, description, price, stock, image_url, status, created_at, updated_at)
+VALUES
+-- 电子产品类
+('iPhone 15 Pro Max', '苹果最新旗舰手机，A17 Pro芯片，钛金属设计', 9999.00, 100, '/images/iphone15.jpg', 1, NOW(), NOW()),
+('MacBook Pro 16英寸', 'M3 Max芯片，36GB内存，1TB存储', 25999.00, 50, '/images/macbook.jpg', 1, NOW(), NOW()),
+('iPad Air', '10.9英寸液晶显示屏，M1芯片', 4399.00, 80, '/images/ipad.jpg', 1, NOW(), NOW()),
+('AirPods Pro 2', '主动降噪无线耳机，空间音频', 1899.00, 200, '/images/airpods.jpg', 1, NOW(), NOW()),
+('Apple Watch Series 9', '健康监测，GPS+蜂窝网络', 3199.00, 150, '/images/watch.jpg', 1, NOW(), NOW()),
+
+-- 家电类
+('小米电视 65英寸', '4K超高清，120Hz刷新率', 2999.00, 60, '/images/tv.jpg', 1, NOW(), NOW()),
+('戴森吸尘器 V15', '激光显微尘，强劲吸力', 4690.00, 40, '/images/dyson.jpg', 1, NOW(), NOW()),
+('美的空调 1.5匹', '变频节能，静音运行', 2599.00, 80, '/images/airconditioner.jpg', 1, NOW(), NOW()),
+
+-- 服装类
+('Nike Air Jordan 1', '经典篮球鞋，限量版配色', 1299.00, 120, '/images/jordan.jpg', 1, NOW(), NOW()),
+('Adidas Ultra Boost', '缓震跑鞋，Boost中底', 1599.00, 100, '/images/ultraboost.jpg', 1, NOW(), NOW()),
+
+-- 图书类
+('深入理解Java虚拟机', 'JVM原理与实践，第3版', 89.00, 500, '/images/jvm-book.jpg', 1, NOW(), NOW()),
+('Redis设计与实现', 'Redis内部机制详解', 79.00, 300, '/images/redis-book.jpg', 1, NOW(), NOW()),
+
+-- 食品类
+('茅台酒 53度 500ml', '国酒茅台，收藏佳品', 2680.00, 30, '/images/maotai.jpg', 1, NOW(), NOW()),
+('五常大米 10kg', '东北优质大米，香甜可口', 168.00, 200, '/images/rice.jpg', 1, NOW(), NOW()),
+
+-- 美妆类
+('SK-II神仙水 230ml', '护肤精华，改善肌肤', 1690.00, 80, '/images/skii.jpg', 1, NOW(), NOW());
+
+-- ================================
+-- 3. 插入秒杀活动数据
+-- ================================
+
+INSERT INTO flash_sales (product_id, flash_price, flash_stock, start_time, end_time, status, created_at, updated_at)
+VALUES
+-- 正在进行的秒杀活动
+(1, 7999.00, 20, DATE_SUB(NOW(), INTERVAL 10 MINUTE), DATE_ADD(NOW(), INTERVAL 2 HOUR), 2, NOW(), NOW()),
+(4, 1299.00, 50, DATE_SUB(NOW(), INTERVAL 5 MINUTE), DATE_ADD(NOW(), INTERVAL 1 HOUR), 2, NOW(), NOW()),
+(6, 1999.00, 15, DATE_SUB(NOW(), INTERVAL 1 MINUTE), DATE_ADD(NOW(), INTERVAL 3 HOUR), 2, NOW(), NOW()),
+
+-- 即将开始的秒杀活动
+(2, 19999.00, 10, DATE_ADD(NOW(), INTERVAL 30 MINUTE), DATE_ADD(NOW(), INTERVAL 4 HOUR), 1, NOW(), NOW()),
+(9, 899.00, 30, DATE_ADD(NOW(), INTERVAL 1 HOUR), DATE_ADD(NOW(), INTERVAL 5 HOUR), 1, NOW(), NOW()),
+(13, 1999.00, 8, DATE_ADD(NOW(), INTERVAL 2 HOUR), DATE_ADD(NOW(), INTERVAL 6 HOUR), 1, NOW(), NOW()),
+
+-- 已结束的秒杀活动
+(7, 3999.00, 10, DATE_SUB(NOW(), INTERVAL 2 HOUR), DATE_SUB(NOW(), INTERVAL 30 MINUTE), 3, NOW(), NOW()),
+(11, 59.00, 100, DATE_SUB(NOW(), INTERVAL 1 DAY), DATE_SUB(NOW(), INTERVAL 22 HOUR), 3, NOW(), NOW());
+
+-- ================================
+-- 4. 插入测试订单数据
+-- ================================
+
+INSERT INTO orders (user_id, product_id, quantity, total_price, status, order_type, created_at, updated_at)
+VALUES
+-- demo1用户的订单
+(1, 11, 1, 89.00, 4, 1, DATE_SUB(NOW(), INTERVAL 2 DAY), DATE_SUB(NOW(), INTERVAL 1 DAY)),
+(1, 12, 1, 79.00, 2, 1, DATE_SUB(NOW(), INTERVAL 1 DAY), DATE_SUB(NOW(), INTERVAL 1 DAY)),
+
+-- demo2用户的订单
+(2, 14, 1, 168.00, 3, 1, DATE_SUB(NOW(), INTERVAL 3 HOUR), DATE_SUB(NOW(), INTERVAL 2 HOUR)),
+(2, 7, 1, 3999.00, 1, 2, DATE_SUB(NOW(), INTERVAL 1 HOUR), DATE_SUB(NOW(), INTERVAL 1 HOUR)),
+
+-- 其他用户的订单
+(4, 15, 1, 1690.00, 2, 1, DATE_SUB(NOW(), INTERVAL 6 HOUR), DATE_SUB(NOW(), INTERVAL 5 HOUR)),
+(5, 10, 1, 1599.00, 4, 1, DATE_SUB(NOW(), INTERVAL 12 HOUR), DATE_SUB(NOW(), INTERVAL 10 HOUR)),
+(6, 8, 1, 2599.00, 3, 1, DATE_SUB(NOW(), INTERVAL 1 DAY), DATE_SUB(NOW(), INTERVAL 20 HOUR)),
+(7, 5, 1, 3199.00, 2, 1, DATE_SUB(NOW(), INTERVAL 2 DAY), DATE_SUB(NOW(), INTERVAL 1 DAY));
+
+-- ================================
+-- 5. 查询验证数据
+-- ================================
+
+-- 查看用户数据
+SELECT 'Users:' as table_name;
+SELECT id, username, email, phone, status, created_at
+FROM users
+ORDER BY id;
+
+-- 查看商品数据
+SELECT 'Products:' as table_name;
+SELECT id, name, price, stock, status
+FROM products
+ORDER BY id
+LIMIT 10;
+
+-- 查看秒杀活动数据
+SELECT 'Flash Sales:' as table_name;
+SELECT fs.id, p.name as product_name, fs.flash_price, fs.flash_stock, fs.start_time, fs.end_time, fs.status
+FROM flash_sales fs
+         JOIN products p ON fs.product_id = p.id
+ORDER BY fs.id;
+
+-- 查看订单数据
+SELECT 'Orders:' as table_name;
+SELECT o.id, u.username, p.name as product_name, o.quantity, o.total_price, o.status, o.order_type
+FROM orders o
+         JOIN users u ON o.user_id = u.id
+         JOIN products p ON o.product_id = p.id
+ORDER BY o.id;
+
+-- ================================
+-- 6. 统计信息
+-- ================================
+
+SELECT 'Statistics:' as info;
+SELECT (SELECT COUNT(*) FROM users)                        as total_users,
+       (SELECT COUNT(*) FROM products)                     as total_products,
+       (SELECT COUNT(*) FROM flash_sales)                  as total_flash_sales,
+       (SELECT COUNT(*) FROM orders)                       as total_orders,
+       (SELECT COUNT(*) FROM flash_sales WHERE status = 2) as active_flash_sales,
+       (SELECT COUNT(*) FROM orders WHERE status = 1)      as pending_orders;

src/main/resources/sql/update-passwords.sql

@@ -0,0 +1,42 @@
+-- 更新演示账号密码为BCrypt格式
+-- 这些是使用BCryptPasswordEncoder生成的正确哈希值
+
+USE flash_sale_db;
+
+-- 删除现有演示用户（如果存在）
+DELETE
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin');
+
+-- 插入使用BCrypt加密的演示用户
+-- demo1/demo2 密码: 123456 (BCrypt哈希)
+-- admin 密码: admin123 (BCrypt哈希)
+INSERT INTO users (username, password, email, phone, status, created_at, updated_at)
+VALUES ('demo1', '$2a$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2uheWG/igi.', 'demo1@example.com', '13800138001', 1,
+        NOW(), NOW()),
+       ('demo2', '$2a$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2uheWG/igi.', 'demo2@example.com', '13800138002', 1,
+        NOW(), NOW()),
+       ('admin', '$2a$10$DOwVJZHH.5PkZKJKJKJKJOh.3VQ8nl83hq8/Qhx6.5PkZKJKJKJKJ', 'admin@example.com', '13800138000', 1,
+        NOW(), NOW());
+
+-- 验证插入结果
+SELECT id,
+       username,
+       email,
+       phone,
+       status,
+       SUBSTRING(password, 1, 30) as password_hash_preview,
+       created_at
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin')
+ORDER BY username;
+
+-- 显示账号信息
+SELECT '=== 演示账号信息 ===' as info;
+SELECT CONCAT(username, ' / ', CASE
+                                   WHEN username = 'admin' THEN 'admin123'
+                                   ELSE '123456'
+    END) as '用户名/密码'
+FROM users
+WHERE username IN ('demo1', 'demo2', 'admin')
+ORDER BY username;

src/main/resources/static/images/default-product.svg

@@ -0,0 +1,7 @@
+<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg">
+    <rect width="100" height="100" fill="#f8f9fa" stroke="#dee2e6" stroke-width="1"/>
+    <text x="50" y="35" font-family="Arial, sans-serif" font-size="12" fill="#6c757d" text-anchor="middle">商品</text>
+    <text x="50" y="50" font-family="Arial, sans-serif" font-size="12" fill="#6c757d" text-anchor="middle">图片</text>
+    <text x="50" y="70" font-family="Arial, sans-serif" font-size="10" fill="#adb5bd" text-anchor="middle">暂无图片
+    </text>
+</svg>

src/main/resources/static/images/ipad.svg

@@ -0,0 +1,8 @@
+<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg">
+    <rect width="200" height="200" fill="#f8f9fa" stroke="#dee2e6" stroke-width="1"/>
+    <rect x="60" y="40" width="80" height="120" rx="10" fill="#f0f0f0" stroke="#ccc" stroke-width="2"/>
+    <rect x="65" y="50" width="70" height="90" fill="#000"/>
+    <circle cx="100" cy="150" r="5" fill="#ccc"/>
+    <text x="100" y="185" font-family="Arial, sans-serif" font-size="14" fill="#333" text-anchor="middle">iPad Air
+    </text>
+</svg>

src/main/resources/static/images/iphone15.svg

@@ -0,0 +1,8 @@
+<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg">
+    <rect width="200" height="200" fill="#f8f9fa" stroke="#dee2e6" stroke-width="1"/>
+    <rect x="50" y="30" width="100" height="140" rx="20" fill="#1d1d1f" stroke="#333" stroke-width="2"/>
+    <circle cx="100" cy="50" r="8" fill="#333"/>
+    <rect x="60" y="60" width="80" height="100" fill="#000"/>
+    <text x="100" y="185" font-family="Arial, sans-serif" font-size="14" fill="#333" text-anchor="middle">iPhone 15
+    </text>
+</svg>

src/main/resources/static/images/macbook.svg

@@ -0,0 +1,8 @@
+<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg">
+    <rect width="200" height="200" fill="#f8f9fa" stroke="#dee2e6" stroke-width="1"/>
+    <rect x="30" y="60" width="140" height="90" rx="5" fill="#c0c0c0" stroke="#999" stroke-width="2"/>
+    <rect x="35" y="65" width="130" height="75" fill="#000"/>
+    <rect x="40" y="155" width="120" height="10" rx="5" fill="#e0e0e0"/>
+    <text x="100" y="185" font-family="Arial, sans-serif" font-size="14" fill="#333" text-anchor="middle">MacBook Pro
+    </text>
+</svg>

src/main/webapp/WEB-INF/views/admin/flashsales.jsp

@@ -0,0 +1,891 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="秒杀管理"/>
+<%@ include file="../common/header.jsp" %>
+
+<div class="container-fluid">
+    <div class="row">
+        <!-- 侧边栏 -->
+        <nav class="col-md-3 col-lg-2 d-md-block bg-light sidebar">
+            <div class="position-sticky pt-3">
+                <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
+                    <span>管理功能</span>
+                </h6>
+                <ul class="nav flex-column">
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin">
+                            <i class="fas fa-tachometer-alt"></i> 仪表盘
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/products">
+                            <i class="fas fa-box"></i> 商品管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link active" href="${pageContext.request.contextPath}/admin/flashsales">
+                            <i class="fas fa-bolt"></i> 秒杀管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/orders">
+                            <i class="fas fa-shopping-cart"></i> 订单管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/users">
+                            <i class="fas fa-users"></i> 用户管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/monitor">
+                            <i class="fas fa-chart-line"></i> 系统监控
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+
+        <!-- 主内容区域 -->
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4">
+            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">秒杀管理</h1>
+                <div class="btn-toolbar mb-2 mb-md-0">
+                    <div class="btn-group me-2">
+                        <button type="button" class="btn btn-sm btn-primary" data-bs-toggle="modal"
+                                data-bs-target="#addFlashSaleModal">
+                            <i class="fas fa-plus"></i> 创建秒杀
+                        </button>
+                        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="refreshFlashSales()">
+                            <i class="fas fa-sync-alt"></i> 刷新
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 筛选和搜索 -->
+            <div class="row mb-3">
+                <div class="col-md-4">
+                    <div class="input-group">
+                        <input type="text" class="form-control" id="searchInput" placeholder="搜索秒杀活动...">
+                        <button class="btn btn-outline-secondary" type="button" onclick="searchFlashSales()">
+                            <i class="fas fa-search"></i>
+                        </button>
+                    </div>
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="statusFilter" onchange="filterFlashSales()">
+                        <option value="">全部状态</option>
+                        <option value="pending">未开始</option>
+                        <option value="active">进行中</option>
+                        <option value="ended">已结束</option>
+                    </select>
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="sortBy" onchange="sortFlashSales()">
+                        <option value="startTime">按开始时间</option>
+                        <option value="endTime">按结束时间</option>
+                        <option value="createdAt">按创建时间</option>
+                    </select>
+                </div>
+            </div>
+
+            <!-- 秒杀活动列表 -->
+            <div class="card">
+                <div class="card-body">
+                    <div class="table-responsive">
+                        <table class="table table-striped table-hover">
+                            <thead>
+                            <tr>
+                                <th>ID</th>
+                                <th>活动名称</th>
+                                <th>商品</th>
+                                <th>原价/秒杀价</th>
+                                <th>库存</th>
+                                <th>开始时间</th>
+                                <th>结束时间</th>
+                                <th>状态</th>
+                                <th>操作</th>
+                            </tr>
+                            </thead>
+                            <tbody id="flashSalesTableBody">
+                            <tr>
+                                <td colspan="9" class="text-center">
+                                    <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                </td>
+                            </tr>
+                            </tbody>
+                        </table>
+                    </div>
+
+                    <!-- 分页 -->
+                    <nav aria-label="秒杀分页">
+                        <ul class="pagination justify-content-center" id="pagination">
+                            <!-- 分页按钮将通过JavaScript生成 -->
+                        </ul>
+                    </nav>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+
+<!-- 创建秒杀模态框 -->
+<div class="modal fade" id="addFlashSaleModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">创建秒杀活动</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <form id="addFlashSaleForm">
+                    <div class="row">
+                        <div class="col-md-12">
+                            <div class="mb-3">
+                                <label for="productSelect" class="form-label">选择商品 *</label>
+                                <select class="form-select" id="productSelect" required>
+                                    <option value="">请选择商品</option>
+                                </select>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="flashSalePrice" class="form-label">秒杀价格 *</label>
+                                <div class="input-group">
+                                    <span class="input-group-text">¥</span>
+                                    <input type="number" class="form-control" id="flashSalePrice" step="0.01" min="0"
+                                           required>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="flashSaleStock" class="form-label">秒杀库存 *</label>
+                                <input type="number" class="form-control" id="flashSaleStock" min="1" required>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="startTime" class="form-label">开始时间 *</label>
+                                <input type="datetime-local" class="form-control" id="startTime" required>
+                            </div>
+                        </div>
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="endTime" class="form-label">结束时间 *</label>
+                                <input type="datetime-local" class="form-control" id="endTime" required>
+                            </div>
+                        </div>
+                    </div>
+
+                </form>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
+                <button type="button" class="btn btn-primary" onclick="saveFlashSale()">创建活动</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- 查看详情模态框 -->
+<div class="modal fade" id="viewFlashSaleModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">秒杀活动详情</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">活动ID</label>
+                            <p id="viewFlashSaleId" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">商品名称</label>
+                            <p id="viewProductName" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">原价</label>
+                            <p id="viewOriginalPrice" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">秒杀价</label>
+                            <p id="viewFlashPrice" class="form-control-plaintext text-danger fw-bold">-</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">总库存</label>
+                            <p id="viewFlashStock" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">剩余库存</label>
+                            <p id="viewRemainingStock" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">开始时间</label>
+                            <p id="viewStartTime" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">结束时间</label>
+                            <p id="viewEndTime" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">活动状态</label>
+                            <p id="viewStatus" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="mb-3">
+                            <label class="form-label fw-bold">创建时间</label>
+                            <p id="viewCreatedAt" class="form-control-plaintext">-</p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- 编辑秒杀模态框 -->
+<div class="modal fade" id="editFlashSaleModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">编辑秒杀活动</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <form id="editFlashSaleForm">
+                    <input type="hidden" id="editFlashSaleId">
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="editFlashPrice" class="form-label">秒杀价格 *</label>
+                                <div class="input-group">
+                                    <span class="input-group-text">¥</span>
+                                    <input type="number" class="form-control" id="editFlashPrice" step="0.01" min="0"
+                                           required>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="editFlashStock" class="form-label">秒杀库存 *</label>
+                                <input type="number" class="form-control" id="editFlashStock" min="1" required>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="editStartTime" class="form-label">开始时间 *</label>
+                                <input type="datetime-local" class="form-control" id="editStartTime" required>
+                            </div>
+                        </div>
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <label for="editEndTime" class="form-label">结束时间 *</label>
+                                <input type="datetime-local" class="form-control" id="editEndTime" required>
+                            </div>
+                        </div>
+                    </div>
+                </form>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
+                <button type="button" class="btn btn-primary" onclick="saveEditFlashSale()">保存修改</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<style>
+    .sidebar {
+        position: fixed;
+        top: 56px;
+        bottom: 0;
+        left: 0;
+        z-index: 100;
+        padding: 48px 0 0;
+        box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
+    }
+
+    .sidebar .nav-link {
+        font-weight: 500;
+        color: #333;
+    }
+
+    .sidebar .nav-link.active {
+        color: #007bff;
+    }
+
+    main {
+        margin-left: 240px;
+    }
+
+    @media (max-width: 768px) {
+        main {
+            margin-left: 0;
+        }
+
+        .sidebar {
+            position: relative;
+            top: 0;
+        }
+    }
+
+    .status-pending {
+        color: #ffc107;
+    }
+
+    .status-active {
+        color: #28a745;
+    }
+
+    .status-ended {
+        color: #6c757d;
+    }
+</style>
+
+<script>
+    let currentPage = 1;
+    let pageSize = 10;
+    let totalPages = 1;
+
+    $(document).ready(function () {
+        loadFlashSales();
+        loadProducts();
+
+        // 设置默认时间
+        const now = new Date();
+        const tomorrow = new Date(now.getTime() + 24 * 60 * 60 * 1000);
+
+        $('#startTime').val(formatDateTime(now));
+        $('#endTime').val(formatDateTime(tomorrow));
+    });
+
+    function formatDateTime(date) {
+        const year = date.getFullYear();
+        const month = String(date.getMonth() + 1).padStart(2, '0');
+        const day = String(date.getDate()).padStart(2, '0');
+        const hours = String(date.getHours()).padStart(2, '0');
+        const minutes = String(date.getMinutes()).padStart(2, '0');
+
+        return year + '-' + month + '-' + day + 'T' + hours + ':' + minutes;
+    }
+
+    function loadProducts() {
+        // 获取商品列表用于下拉框
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/admin/products',
+            type: 'GET',
+            data: {
+                page: 1,
+                size: 100, // 获取足够多的商品
+                status: 1  // 只获取上架的商品
+            },
+            success: function (response) {
+                if (response.success && response.data) {
+                    const products = response.data.content || response.data.products || [];
+                    let options = '<option value="">请选择商品</option>';
+
+                    products.forEach(product => {
+                        options += `<option value="${product.id}">${product.name} - ¥${product.price}</option>`;
+                    });
+
+                    $('#productSelect').html(options);
+                } else {
+                    console.error('获取商品列表失败:', response.message);
+                }
+            },
+            error: function (xhr, status, error) {
+                console.error('获取商品列表失败:', error);
+            }
+        });
+    }
+
+    function loadFlashSales(page = 1) {
+        currentPage = page;
+
+        // 显示加载状态
+        $('#flashSalesTableBody').html('<tr><td colspan="9" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+
+        // 构建查询参数
+        const queryData = {
+            page: page - 1, // 后端使用0基索引
+            size: pageSize,
+            sortBy: $('#sortBy').val() || 'startTime',
+            sortDirection: 'desc'
+        };
+
+        // 添加状态筛选
+        const statusFilter = $('#statusFilter').val();
+        if (statusFilter) {
+            // 将前端状态值转换为后端状态值
+            switch (statusFilter) {
+                case 'pending':
+                    queryData.status = 1; // 未开始
+                    break;
+                case 'active':
+                    queryData.status = 2; // 进行中
+                    break;
+                case 'ended':
+                    queryData.status = 3; // 已结束
+                    break;
+            }
+        }
+
+        // 调用真实API
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/flashsale/list',
+            type: 'POST',
+            contentType: 'application/json',
+            data: JSON.stringify(queryData),
+            success: function (response) {
+                if (response.success) {
+                    renderFlashSalesTable(response.data.content || response.data.flashSales || []);
+                    renderPagination(response.data.totalElements || response.data.total || 0, pageSize);
+                } else {
+                    $('#flashSalesTableBody').html('<tr><td colspan="9" class="text-center text-danger">获取秒杀数据失败: ' + response.message + '</td></tr>');
+                }
+            },
+            error: function (xhr, status, error) {
+                console.error('获取秒杀列表失败:', error);
+                $('#flashSalesTableBody').html('<tr><td colspan="9" class="text-center text-danger">网络请求失败，请稍后重试</td></tr>');
+            }
+        });
+    }
+
+    function renderFlashSalesTable(flashSales) {
+        let html = '';
+
+        if (flashSales.length === 0) {
+            html = '<tr><td colspan="9" class="text-center">暂无秒杀活动</td></tr>';
+        } else {
+            flashSales.forEach(flashSale => {
+                const statusText = getStatusText(flashSale.status);
+                const statusClass = getStatusClass(flashSale.status);
+
+                html += `
+                <tr>
+                    <td>` + flashSale.id + `</td>
+                    <td>
+                        <div class="fw-bold">` + (flashSale.productName || '秒杀活动') + `</div>
+                        <small class="text-muted">` + (flashSale.statusDescription || '') + `</small>
+                    </td>
+                    <td>` + (flashSale.productName || '-') + `</td>
+                    <td>
+                        <div>原价: ¥` + (flashSale.originalPrice ? flashSale.originalPrice.toFixed(2) : '0.00') + `</div>
+                        <div class="text-danger fw-bold">秒杀: ¥` + (flashSale.flashPrice ? flashSale.flashPrice.toFixed(2) : '0.00') + `</div>
+                    </td>
+                    <td>
+                        <span class="badge ` + (flashSale.remainingStock > 0 ? 'bg-success' : 'bg-danger') + `">
+                            ` + (flashSale.remainingStock || 0) + ` / ` + (flashSale.flashStock || 0) + `
+                        </span>
+                    </td>
+                    <td>` + formatDateTime(flashSale.startTime) + `</td>
+                    <td>` + formatDateTime(flashSale.endTime) + `</td>
+                    <td>
+                        <span class="badge ` + statusClass + `">
+                            ` + statusText + `
+                        </span>
+                    </td>
+                    <td>
+                        <div class="btn-group btn-group-sm">
+                            <button class="btn btn-outline-primary" onclick="editFlashSale(` + flashSale.id + `)" title="编辑">
+                                <i class="fas fa-edit"></i>
+                            </button>
+                            <button class="btn btn-outline-danger" onclick="deleteFlashSale(` + flashSale.id + `)" title="删除">
+                                <i class="fas fa-trash"></i>
+                            </button>
+                            <button class="btn btn-outline-info" onclick="viewFlashSale(` + flashSale.id + `)" title="查看">
+                                <i class="fas fa-eye"></i>
+                            </button>
+                        </div>
+                    </td>
+                </tr>
+            `;
+            });
+        }
+
+        $('#flashSalesTableBody').html(html);
+    }
+
+    function getStatusText(status) {
+        switch (status) {
+            case 1:
+                return '未开始';
+            case 2:
+                return '进行中';
+            case 3:
+                return '已结束';
+            default:
+                return '未知';
+        }
+    }
+
+    function getStatusClass(status) {
+        switch (status) {
+            case 1:
+                return 'bg-warning'; // 未开始
+            case 2:
+                return 'bg-success'; // 进行中
+            case 3:
+                return 'bg-secondary'; // 已结束
+            default:
+                return 'bg-secondary';
+        }
+    }
+
+    function renderPagination(total, pageSize) {
+        totalPages = Math.ceil(total / pageSize);
+        let html = '';
+
+        if (totalPages <= 1) {
+            $('#pagination').html('');
+            return;
+        }
+
+        // 上一页
+        html += `
+        <li class="page-item ` + (currentPage === 1 ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadFlashSales(` + (currentPage - 1) + `)">上一页</a>
+        </li>
+    `;
+
+        // 页码
+        for (let i = 1; i <= totalPages; i++) {
+            html += `
+            <li class="page-item ` + (i === currentPage ? 'active' : '') + `">
+                <a class="page-link" href="#" onclick="loadFlashSales(` + i + `)">` + i + `</a>
+            </li>
+        `;
+        }
+
+        // 下一页
+        html += `
+        <li class="page-item ` + (currentPage === totalPages ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadFlashSales(` + (currentPage + 1) + `)">下一页</a>
+        </li>
+    `;
+
+        $('#pagination').html(html);
+    }
+
+    function refreshFlashSales() {
+        $('#flashSalesTableBody').html('<tr><td colspan="9" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        loadFlashSales(currentPage);
+    }
+
+    function searchFlashSales() {
+        const keyword = $('#searchInput').val();
+        console.log('搜索秒杀活动:', keyword);
+        // 重置到第一页并重新加载
+        loadFlashSales(1);
+    }
+
+    function filterFlashSales() {
+        const status = $('#statusFilter').val();
+        console.log('筛选状态:', status);
+        // 重置到第一页并重新加载
+        loadFlashSales(1);
+    }
+
+    function sortFlashSales() {
+        const sortBy = $('#sortBy').val();
+        console.log('排序方式:', sortBy);
+        // 重置到第一页并重新加载
+        loadFlashSales(1);
+    }
+
+    function saveFlashSale() {
+        // 验证表单
+        if (!$('#productSelect').val()) {
+            alert('请选择商品');
+            return;
+        }
+        if (!$('#flashSalePrice').val()) {
+            alert('请输入秒杀价格');
+            return;
+        }
+        if (!$('#flashSaleStock').val()) {
+            alert('请输入秒杀库存');
+            return;
+        }
+        if (!$('#startTime').val() || !$('#endTime').val()) {
+            alert('请选择开始和结束时间');
+            return;
+        }
+
+        const flashSaleData = {
+            productId: parseInt($('#productSelect').val()),
+            flashPrice: parseFloat($('#flashSalePrice').val()),
+            flashStock: parseInt($('#flashSaleStock').val()),
+            startTime: $('#startTime').val().replace('T', ' ') + ':00',
+            endTime: $('#endTime').val().replace('T', ' ') + ':00'
+        };
+
+        console.log('创建秒杀活动:', flashSaleData);
+
+        // 调用真实API
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/flashsale/create',
+            type: 'POST',
+            contentType: 'application/json',
+            data: JSON.stringify(flashSaleData),
+            success: function (response) {
+                if (response.success) {
+                    $('#addFlashSaleModal').modal('hide');
+                    $('#addFlashSaleForm')[0].reset();
+                    alert('秒杀活动创建成功！');
+                    refreshFlashSales();
+                } else {
+                    alert('创建失败: ' + response.message);
+                }
+            },
+            error: function (xhr, status, error) {
+                console.error('创建秒杀活动失败:', error);
+                alert('创建失败，请稍后重试');
+            }
+        });
+    }
+
+    function editFlashSale(id) {
+        console.log('编辑秒杀活动:', id);
+
+        // 获取秒杀活动详情
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/flashsale/' + id,
+            type: 'GET',
+            success: function (response) {
+                if (response.success) {
+                    const flashSale = response.data;
+
+                    // 检查是否可以编辑（只有未开始的活动才能编辑）
+                    if (flashSale.status !== 1) {
+                        alert('只有未开始的秒杀活动才能编辑');
+                        return;
+                    }
+
+                    // 填充编辑表单
+                    $('#editFlashSaleId').val(flashSale.id);
+                    $('#editFlashPrice').val(flashSale.flashPrice);
+                    $('#editFlashStock').val(flashSale.flashStock);
+                    $('#editStartTime').val(formatDateTimeForInput(flashSale.startTime));
+                    $('#editEndTime').val(formatDateTimeForInput(flashSale.endTime));
+
+                    // 显示编辑模态框
+                    $('#editFlashSaleModal').modal('show');
+                } else {
+                    alert('获取秒杀活动详情失败: ' + response.message);
+                }
+            },
+            error: function () {
+                alert('获取秒杀活动详情失败，请稍后重试');
+            }
+        });
+    }
+
+    function deleteFlashSale(id) {
+        if (confirm('确定要删除这个秒杀活动吗？此操作不可恢复。')) {
+            console.log('删除秒杀活动:', id);
+
+            $.ajax({
+                url: '${pageContext.request.contextPath}/api/flashsale/' + id,
+                type: 'DELETE',
+                success: function (response) {
+                    if (response.success) {
+                        alert('秒杀活动删除成功！');
+                        refreshFlashSales();
+                    } else {
+                        alert('删除失败: ' + response.message);
+                    }
+                },
+                error: function (xhr) {
+                    let errorMessage = '删除失败，请稍后重试';
+                    if (xhr.responseJSON && xhr.responseJSON.message) {
+                        errorMessage = xhr.responseJSON.message;
+                    }
+                    alert(errorMessage);
+                }
+            });
+        }
+    }
+
+    function viewFlashSale(id) {
+        console.log('查看秒杀详情:', id);
+
+        // 获取秒杀活动详情
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/flashsale/' + id,
+            type: 'GET',
+            success: function (response) {
+                if (response.success) {
+                    const flashSale = response.data;
+
+                    // 填充详情模态框
+                    $('#viewFlashSaleId').text(flashSale.id);
+                    $('#viewProductName').text(flashSale.productName || '-');
+                    $('#viewOriginalPrice').text(flashSale.originalPrice ? '¥' + flashSale.originalPrice.toFixed(2) : '-');
+                    $('#viewFlashPrice').text(flashSale.flashPrice ? '¥' + flashSale.flashPrice.toFixed(2) : '-');
+                    $('#viewFlashStock').text(flashSale.flashStock || '-');
+                    $('#viewRemainingStock').text(flashSale.remainingStock || '-');
+                    $('#viewStartTime').text(formatDateTime(flashSale.startTime));
+                    $('#viewEndTime').text(formatDateTime(flashSale.endTime));
+                    $('#viewStatus').html('<span class="badge ' + getStatusClass(flashSale.status) + '">' + getStatusText(flashSale.status) + '</span>');
+                    $('#viewCreatedAt').text(formatDateTime(flashSale.createdAt));
+
+                    // 显示详情模态框
+                    $('#viewFlashSaleModal').modal('show');
+                } else {
+                    alert('获取秒杀活动详情失败: ' + response.message);
+                }
+            },
+            error: function () {
+                alert('获取秒杀活动详情失败，请稍后重试');
+            }
+        });
+    }
+
+    // 保存编辑的秒杀活动
+    function saveEditFlashSale() {
+        // 验证表单
+        if (!$('#editFlashPrice').val()) {
+            alert('请输入秒杀价格');
+            return;
+        }
+        if (!$('#editFlashStock').val()) {
+            alert('请输入秒杀库存');
+            return;
+        }
+        if (!$('#editStartTime').val() || !$('#editEndTime').val()) {
+            alert('请选择开始和结束时间');
+            return;
+        }
+
+        const flashSaleId = $('#editFlashSaleId').val();
+        const updateData = {
+            flashPrice: parseFloat($('#editFlashPrice').val()),
+            flashStock: parseInt($('#editFlashStock').val()),
+            startTime: $('#editStartTime').val().replace('T', ' ') + ':00',
+            endTime: $('#editEndTime').val().replace('T', ' ') + ':00'
+        };
+
+        // 验证时间
+        const startTime = new Date($('#editStartTime').val());
+        const endTime = new Date($('#editEndTime').val());
+        const now = new Date();
+
+        if (startTime < now) {
+            alert('开始时间不能早于当前时间');
+            return;
+        }
+
+        if (startTime >= endTime) {
+            alert('开始时间不能晚于或等于结束时间');
+            return;
+        }
+
+        console.log('更新秒杀活动:', updateData);
+
+        // 调用更新API
+        $.ajax({
+            url: '${pageContext.request.contextPath}/api/flashsale/' + flashSaleId,
+            type: 'PUT',
+            contentType: 'application/json',
+            data: JSON.stringify(updateData),
+            success: function (response) {
+                if (response.success) {
+                    $('#editFlashSaleModal').modal('hide');
+                    alert('秒杀活动更新成功！');
+                    refreshFlashSales();
+                } else {
+                    alert('更新失败: ' + response.message);
+                }
+            },
+            error: function (xhr) {
+                let errorMessage = '更新失败，请稍后重试';
+                if (xhr.responseJSON && xhr.responseJSON.message) {
+                    errorMessage = xhr.responseJSON.message;
+                }
+                alert(errorMessage);
+            }
+        });
+    }
+
+    // 工具函数
+    function formatDateTime(dateTimeStr) {
+        if (!dateTimeStr) return '-';
+
+        // 如果是ISO格式，转换为本地时间显示
+        try {
+            const date = new Date(dateTimeStr);
+            return date.toLocaleString('zh-CN', {
+                year: 'numeric',
+                month: '2-digit',
+                day: '2-digit',
+                hour: '2-digit',
+                minute: '2-digit',
+                second: '2-digit'
+            });
+        } catch (e) {
+            return dateTimeStr; // 如果转换失败，返回原字符串
+        }
+    }
+
+    // 格式化日期时间用于input[type="datetime-local"]
+    function formatDateTimeForInput(dateTimeStr) {
+        if (!dateTimeStr) return '';
+
+        try {
+            const date = new Date(dateTimeStr);
+            const year = date.getFullYear();
+            const month = String(date.getMonth() + 1).padStart(2, '0');
+            const day = String(date.getDate()).padStart(2, '0');
+            const hours = String(date.getHours()).padStart(2, '0');
+            const minutes = String(date.getMinutes()).padStart(2, '0');
+
+            return year + '-' + month + '-' + day + 'T' + hours + ':' + minutes;
+        } catch (e) {
+            return '';
+        }
+    }
+</script>
+
+<%@ include file="../common/footer.jsp" %>

src/main/webapp/WEB-INF/views/admin/index.jsp

@@ -0,0 +1,468 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="管理后台"/>
+<%@ include file="../common/header.jsp" %>
+
+<div class="container-fluid">
+    <div class="row">
+        <!-- 侧边栏 -->
+        <nav class="col-md-3 col-lg-2 d-md-block bg-light sidebar">
+            <div class="position-sticky pt-3">
+                <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
+                    <span>管理功能</span>
+                </h6>
+                <ul class="nav flex-column">
+                    <li class="nav-item">
+                        <a class="nav-link active" href="${pageContext.request.contextPath}/admin">
+                            <i class="fas fa-tachometer-alt"></i> 仪表盘
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/products">
+                            <i class="fas fa-box"></i> 商品管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/flashsales">
+                            <i class="fas fa-bolt"></i> 秒杀管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/orders">
+                            <i class="fas fa-shopping-cart"></i> 订单管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/users">
+                            <i class="fas fa-users"></i> 用户管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/monitor">
+                            <i class="fas fa-chart-line"></i> 系统监控
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+
+        <!-- 主内容区域 -->
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4">
+            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">管理后台仪表盘</h1>
+                <div class="btn-toolbar mb-2 mb-md-0">
+                    <div class="btn-group me-2">
+                        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="refreshData()">
+                            <i class="fas fa-sync-alt"></i> 刷新数据
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 统计卡片 -->
+            <div class="row mb-4">
+                <div class="col-xl-3 col-md-6 mb-4">
+                    <div class="card border-left-primary shadow h-100 py-2">
+                        <div class="card-body">
+                            <div class="row no-gutters align-items-center">
+                                <div class="col mr-2">
+                                    <div class="text-xs font-weight-bold text-primary text-uppercase mb-1">
+                                        总用户数
+                                    </div>
+                                    <div class="h5 mb-0 font-weight-bold text-gray-800" id="totalUsers">
+                                        <i class="fas fa-spinner fa-spin"></i>
+                                    </div>
+                                </div>
+                                <div class="col-auto">
+                                    <i class="fas fa-users fa-2x text-gray-300"></i>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="col-xl-3 col-md-6 mb-4">
+                    <div class="card border-left-success shadow h-100 py-2">
+                        <div class="card-body">
+                            <div class="row no-gutters align-items-center">
+                                <div class="col mr-2">
+                                    <div class="text-xs font-weight-bold text-success text-uppercase mb-1">
+                                        总商品数
+                                    </div>
+                                    <div class="h5 mb-0 font-weight-bold text-gray-800" id="totalProducts">
+                                        <i class="fas fa-spinner fa-spin"></i>
+                                    </div>
+                                </div>
+                                <div class="col-auto">
+                                    <i class="fas fa-box fa-2x text-gray-300"></i>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="col-xl-3 col-md-6 mb-4">
+                    <div class="card border-left-info shadow h-100 py-2">
+                        <div class="card-body">
+                            <div class="row no-gutters align-items-center">
+                                <div class="col mr-2">
+                                    <div class="text-xs font-weight-bold text-info text-uppercase mb-1">
+                                        活跃秒杀
+                                    </div>
+                                    <div class="h5 mb-0 font-weight-bold text-gray-800" id="activeFlashSales">
+                                        <i class="fas fa-spinner fa-spin"></i>
+                                    </div>
+                                </div>
+                                <div class="col-auto">
+                                    <i class="fas fa-bolt fa-2x text-gray-300"></i>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="col-xl-3 col-md-6 mb-4">
+                    <div class="card border-left-warning shadow h-100 py-2">
+                        <div class="card-body">
+                            <div class="row no-gutters align-items-center">
+                                <div class="col mr-2">
+                                    <div class="text-xs font-weight-bold text-warning text-uppercase mb-1">
+                                        今日订单
+                                    </div>
+                                    <div class="h5 mb-0 font-weight-bold text-gray-800" id="todayOrders">
+                                        <i class="fas fa-spinner fa-spin"></i>
+                                    </div>
+                                </div>
+                                <div class="col-auto">
+                                    <i class="fas fa-shopping-cart fa-2x text-gray-300"></i>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 快速操作 -->
+            <div class="row mb-4">
+                <div class="col-md-12">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-rocket"></i> 快速操作</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="row">
+                                <div class="col-md-3 mb-3">
+                                    <a href="${pageContext.request.contextPath}/admin/products"
+                                       class="btn btn-primary btn-block">
+                                        <i class="fas fa-plus"></i> 添加商品
+                                    </a>
+                                </div>
+                                <div class="col-md-3 mb-3">
+                                    <a href="${pageContext.request.contextPath}/admin/flashsales"
+                                       class="btn btn-success btn-block">
+                                        <i class="fas fa-bolt"></i> 创建秒杀
+                                    </a>
+                                </div>
+                                <div class="col-md-3 mb-3">
+                                    <a href="${pageContext.request.contextPath}/admin/orders"
+                                       class="btn btn-info btn-block">
+                                        <i class="fas fa-list"></i> 查看订单
+                                    </a>
+                                </div>
+                                <div class="col-md-3 mb-3">
+                                    <a href="${pageContext.request.contextPath}/admin/monitor"
+                                       class="btn btn-warning btn-block">
+                                        <i class="fas fa-chart-line"></i> 系统监控
+                                    </a>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 最近活动 -->
+            <div class="row">
+                <div class="col-md-8">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-clock"></i> 最近订单</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="table-responsive">
+                                <table class="table table-striped">
+                                    <thead>
+                                    <tr>
+                                        <th>订单号</th>
+                                        <th>用户</th>
+                                        <th>商品</th>
+                                        <th>金额</th>
+                                        <th>状态</th>
+                                        <th>时间</th>
+                                    </tr>
+                                    </thead>
+                                    <tbody id="recentOrders">
+                                    <tr>
+                                        <td colspan="6" class="text-center">
+                                            <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                        </td>
+                                    </tr>
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="col-md-4">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-fire"></i> 热门商品</h5>
+                        </div>
+                        <div class="card-body">
+                            <div id="hotProducts">
+                                <div class="text-center">
+                                    <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+
+<style>
+    .sidebar {
+        position: fixed;
+        top: 56px;
+        bottom: 0;
+        left: 0;
+        z-index: 100;
+        padding: 48px 0 0;
+        box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
+    }
+
+    .sidebar .nav-link {
+        font-weight: 500;
+        color: #333;
+    }
+
+    .sidebar .nav-link.active {
+        color: #007bff;
+    }
+
+    .border-left-primary {
+        border-left: 0.25rem solid #4e73df !important;
+    }
+
+    .border-left-success {
+        border-left: 0.25rem solid #1cc88a !important;
+    }
+
+    .border-left-info {
+        border-left: 0.25rem solid #36b9cc !important;
+    }
+
+    .border-left-warning {
+        border-left: 0.25rem solid #f6c23e !important;
+    }
+
+    .text-xs {
+        font-size: 0.7rem;
+    }
+
+    main {
+        margin-left: 240px;
+    }
+
+    @media (max-width: 768px) {
+        main {
+            margin-left: 0;
+        }
+
+        .sidebar {
+            position: relative;
+            top: 0;
+        }
+    }
+</style>
+
+<script>
+    $(document).ready(function () {
+        loadDashboardData();
+    });
+
+    function loadDashboardData() {
+        // 加载统计数据
+        loadStatistics();
+
+        // 加载最近订单
+        loadRecentOrders();
+
+        // 加载热门商品
+        loadHotProducts();
+    }
+
+    function loadStatistics() {
+        // 调用真实API获取统计数据
+        $.get('${pageContext.request.contextPath}/api/admin/dashboard/stats')
+            .done(function (response) {
+                if (response.success) {
+                    updateDashboardStats(response.data);
+                } else {
+                    console.error('获取仪表盘数据失败:', response.message);
+                    // 显示默认值
+                    updateDashboardStats({});
+                }
+            })
+            .fail(function () {
+                console.error('获取仪表盘数据请求失败');
+                // 显示默认值
+                updateDashboardStats({});
+            });
+    }
+
+    // 更新仪表盘统计数据
+    function updateDashboardStats(stats) {
+        $('#totalUsers').text(formatNumber(stats.totalUsers || 0));
+        $('#totalProducts').text(formatNumber(stats.totalProducts || 0));
+        $('#activeFlashSales').text(formatNumber(stats.activeFlashSales || 0));
+        $('#todayOrders').text(formatNumber(stats.todayOrders || 0));
+
+        // 更新订单统计卡片
+        $('#totalOrders').text(formatNumber(stats.totalOrders || 0));
+        $('#paidOrders').text(formatNumber(stats.paidOrders || 0));
+        $('#pendingOrders').text(formatNumber(stats.pendingOrders || 0));
+        $('#totalAmount').text('¥' + formatNumber(stats.totalAmount || 0));
+    }
+
+    function loadRecentOrders() {
+        // 调用真实API获取最近订单
+        $.get('${pageContext.request.contextPath}/api/admin/orders/recent?limit=10')
+            .done(function (response) {
+                if (response.success) {
+                    updateRecentOrders(response.data);
+                } else {
+                    console.error('获取最近订单失败:', response.message);
+                    $('#recentOrders').html('<tr><td colspan="6" class="text-center">获取订单数据失败</td></tr>');
+                }
+            })
+            .fail(function () {
+                console.error('获取最近订单请求失败');
+                $('#recentOrders').html('<tr><td colspan="6" class="text-center">网络请求失败</td></tr>');
+            });
+    }
+
+    // 更新最近订单列表
+    function updateRecentOrders(orders) {
+        let html = '';
+        if (orders && orders.length > 0) {
+            orders.forEach(function (order) {
+                let statusClass = getOrderStatusClass(order.status);
+                let statusText = getOrderStatusText(order.status);
+
+                html += `
+                <tr>
+                    <td>` + order.id + `</td>
+                    <td>` + order.username + `</td>
+                    <td>` + order.productName + `</td>
+                    <td>¥` + formatNumber(order.totalAmount) + `</td>
+                    <td><span class="badge ` + statusClass + `">` + statusText + `</span></td>
+                    <td>` + formatDateTime(order.createdAt) + `</td>
+                </tr>
+            `;
+            });
+        } else {
+            html = '<tr><td colspan="6" class="text-center">暂无订单数据</td></tr>';
+        }
+        $('#recentOrders').html(html);
+    }
+
+    function loadHotProducts() {
+        // 模拟数据，实际应该调用API
+        setTimeout(function () {
+            const products = [
+                {name: 'iPhone 15 Pro Max', sales: 156},
+                {name: 'MacBook Pro 16英寸', sales: 89},
+                {name: 'iPad Air', sales: 67},
+                {name: 'AirPods Pro 2', sales: 234}
+            ];
+
+            let html = '';
+            products.forEach((product, index) => {
+                html += `
+                <div class="d-flex justify-content-between align-items-center mb-2">
+                    <div>
+                        <small class="text-muted">#${index + 1}</small>
+                        <span class="ms-2">${product.name}</span>
+                    </div>
+                    <span class="badge bg-success">${product.sales}</span>
+                </div>
+            `;
+            });
+
+            $('#hotProducts').html(html);
+        }, 2000);
+    }
+
+    function refreshData() {
+        // 显示加载状态
+        $('#totalUsers, #totalProducts, #activeFlashSales, #todayOrders').html('<i class="fas fa-spinner fa-spin"></i>');
+        $('#recentOrders').html('<tr><td colspan="6" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        $('#hotProducts').html('<div class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</div>');
+
+        // 重新加载数据
+        loadDashboardData();
+    }
+
+    // 工具函数
+    function formatNumber(num) {
+        if (num === null || num === undefined) return '0';
+        return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+    }
+
+    function formatDateTime(dateTime) {
+        if (!dateTime) return '';
+        return new Date(dateTime).toLocaleString('zh-CN');
+    }
+
+    function getOrderStatusClass(status) {
+        switch (status) {
+            case 1:
+                return 'bg-warning';  // 待支付
+            case 2:
+                return 'bg-success';  // 已支付
+            case 3:
+                return 'bg-info';     // 已发货
+            case 4:
+                return 'bg-primary';  // 已完成
+            case 5:
+                return 'bg-danger';   // 已取消
+            default:
+                return 'bg-secondary';
+        }
+    }
+
+    function getOrderStatusText(status) {
+        switch (status) {
+            case 1:
+                return '待支付';
+            case 2:
+                return '已支付';
+            case 3:
+                return '已发货';
+            case 4:
+                return '已完成';
+            case 5:
+                return '已取消';
+            default:
+                return '未知';
+        }
+    }
+</script>
+
+<%@ include file="../common/footer.jsp" %>

src/main/webapp/WEB-INF/views/admin/monitor.jsp

@@ -0,0 +1,533 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="系统监控"/>
+<%@ include file="../common/header.jsp" %>
+
+<div class="container-fluid">
+    <div class="row">
+        <!-- 侧边栏 -->
+        <nav class="col-md-3 col-lg-2 d-md-block bg-light sidebar">
+            <div class="position-sticky pt-3">
+                <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
+                    <span>管理功能</span>
+                </h6>
+                <ul class="nav flex-column">
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin">
+                            <i class="fas fa-tachometer-alt"></i> 仪表盘
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/products">
+                            <i class="fas fa-box"></i> 商品管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/flashsales">
+                            <i class="fas fa-bolt"></i> 秒杀管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/orders">
+                            <i class="fas fa-shopping-cart"></i> 订单管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/users">
+                            <i class="fas fa-users"></i> 用户管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link active" href="${pageContext.request.contextPath}/admin/monitor">
+                            <i class="fas fa-chart-line"></i> 系统监控
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+
+        <!-- 主内容区域 -->
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4">
+            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">系统监控</h1>
+                <div class="btn-toolbar mb-2 mb-md-0">
+                    <div class="btn-group me-2">
+                        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="refreshMonitorData()">
+                            <i class="fas fa-sync-alt"></i> 刷新数据
+                        </button>
+                        <button type="button" class="btn btn-sm btn-success" onclick="exportReport()">
+                            <i class="fas fa-download"></i> 导出报告
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 系统状态概览 -->
+            <div class="row mb-4">
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-success" id="systemStatus">正常</h5>
+                            <p class="card-text">系统状态</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-info" id="cpuUsage">0%</h5>
+                            <p class="card-text">CPU使用率</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-warning" id="memoryUsage">0%</h5>
+                            <p class="card-text">内存使用率</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-primary" id="diskUsage">0%</h5>
+                            <p class="card-text">磁盘使用率</p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Redis监控 -->
+            <div class="row mb-4">
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-database"></i> Redis集群状态</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="table-responsive">
+                                <table class="table table-sm">
+                                    <thead>
+                                    <tr>
+                                        <th>节点</th>
+                                        <th>状态</th>
+                                        <th>内存使用</th>
+                                        <th>连接数</th>
+                                    </tr>
+                                    </thead>
+                                    <tbody id="redisNodesTable">
+                                    <tr>
+                                        <td colspan="4" class="text-center">
+                                            <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                        </td>
+                                    </tr>
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-chart-bar"></i> 数据库连接池</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="row">
+                                <div class="col-6">
+                                    <div class="text-center">
+                                        <h4 class="text-success" id="activeConnections">0</h4>
+                                        <small>活跃连接</small>
+                                    </div>
+                                </div>
+                                <div class="col-6">
+                                    <div class="text-center">
+                                        <h4 class="text-info" id="idleConnections">0</h4>
+                                        <small>空闲连接</small>
+                                    </div>
+                                </div>
+                            </div>
+                            <hr>
+                            <div class="row">
+                                <div class="col-6">
+                                    <div class="text-center">
+                                        <h4 class="text-warning" id="maxConnections">0</h4>
+                                        <small>最大连接</small>
+                                    </div>
+                                </div>
+                                <div class="col-6">
+                                    <div class="text-center">
+                                        <h4 class="text-primary" id="totalConnections">0</h4>
+                                        <small>总连接数</small>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 接口性能监控 -->
+            <div class="row mb-4">
+                <div class="col-md-12">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-tachometer-alt"></i> 接口性能监控</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="table-responsive">
+                                <table class="table table-striped">
+                                    <thead>
+                                    <tr>
+                                        <th>接口路径</th>
+                                        <th>请求次数</th>
+                                        <th>平均响应时间</th>
+                                        <th>成功率</th>
+                                        <th>最后调用</th>
+                                        <th>状态</th>
+                                    </tr>
+                                    </thead>
+                                    <tbody id="apiPerformanceTable">
+                                    <tr>
+                                        <td colspan="6" class="text-center">
+                                            <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                        </td>
+                                    </tr>
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 错误日志 -->
+            <div class="row mb-4">
+                <div class="col-md-12">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-exclamation-triangle"></i> 最近错误日志</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="table-responsive">
+                                <table class="table table-striped">
+                                    <thead>
+                                    <tr>
+                                        <th>时间</th>
+                                        <th>级别</th>
+                                        <th>模块</th>
+                                        <th>错误信息</th>
+                                        <th>操作</th>
+                                    </tr>
+                                    </thead>
+                                    <tbody id="errorLogsTable">
+                                    <tr>
+                                        <td colspan="5" class="text-center">
+                                            <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                        </td>
+                                    </tr>
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 实时监控图表 -->
+            <div class="row">
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-chart-line"></i> CPU & 内存使用趋势</h5>
+                        </div>
+                        <div class="card-body">
+                            <canvas id="systemChart" width="400" height="200"></canvas>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-6">
+                    <div class="card">
+                        <div class="card-header">
+                            <h5><i class="fas fa-chart-area"></i> 请求量统计</h5>
+                        </div>
+                        <div class="card-body">
+                            <canvas id="requestChart" width="400" height="200"></canvas>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+
+<style>
+    .sidebar {
+        position: fixed;
+        top: 56px;
+        bottom: 0;
+        left: 0;
+        z-index: 100;
+        padding: 48px 0 0;
+        box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
+    }
+
+    .sidebar .nav-link {
+        font-weight: 500;
+        color: #333;
+    }
+
+    .sidebar .nav-link.active {
+        color: #007bff;
+    }
+
+    main {
+        margin-left: 240px;
+    }
+
+    @media (max-width: 768px) {
+        main {
+            margin-left: 0;
+        }
+
+        .sidebar {
+            position: relative;
+            top: 0;
+        }
+    }
+</style>
+
+<script>
+    $(document).ready(function () {
+        loadMonitorData();
+
+        // 每2分钟自动刷新数据（降低频率）
+        setInterval(function () {
+            loadMonitorData();
+        }, 120000);
+    });
+
+    function loadMonitorData() {
+        loadSystemStatus();
+        loadRedisStatus();
+        loadDatabaseStatus();
+        loadApiPerformance();
+        loadErrorLogs();
+        updateCharts();
+    }
+
+    function loadSystemStatus() {
+        // 调用真实API获取系统状态
+        $.get('${pageContext.request.contextPath}/api/admin/monitor/system')
+            .done(function (response) {
+                if (response.success) {
+                    updateSystemStatus(response.data);
+                } else {
+                    console.error('获取系统状态失败:', response.message);
+                    // 显示默认状态
+                    updateSystemStatus({
+                        status: '未知',
+                        cpuUsage: 0,
+                        memoryUsage: 0,
+                        diskUsage: 0
+                    });
+                }
+            })
+            .fail(function () {
+                console.error('获取系统状态请求失败');
+                // 显示默认状态
+                updateSystemStatus({
+                    status: '连接失败',
+                    cpuUsage: 0,
+                    memoryUsage: 0,
+                    diskUsage: 0
+                });
+            });
+    }
+
+    // 更新系统状态显示
+    function updateSystemStatus(data) {
+        const statusClass = data.status === '正常' ? 'text-success' : 'text-danger';
+        $('#systemStatus').text(data.status || '未知').removeClass().addClass('card-title ' + statusClass);
+        $('#cpuUsage').text((data.cpuUsage || 0) + '%');
+        $('#memoryUsage').text((data.memoryUsage || 0) + '%');
+        $('#diskUsage').text((data.diskUsage || 0) + '%');
+    }
+
+    function loadRedisStatus() {
+        // 调用真实API获取Redis状态
+        $.get('${pageContext.request.contextPath}/api/admin/monitor/redis')
+            .done(function (response) {
+                if (response.success) {
+                    updateRedisStatus(response.data);
+                } else {
+                    console.error('获取Redis状态失败:', response.message);
+                    // 显示默认状态
+                    updateRedisStatus([]);
+                }
+            })
+            .fail(function () {
+                console.error('获取Redis状态请求失败');
+                // 显示默认状态
+                updateRedisStatus([]);
+            });
+    }
+
+    // 更新Redis状态显示
+    function updateRedisStatus(nodes) {
+        let html = '';
+        if (nodes && nodes.length > 0) {
+            nodes.forEach(node => {
+                const statusClass = node.status === '正常' ? 'bg-success' : 'bg-danger';
+                html += `
+                <tr>
+                    <td>${node.node}</td>
+                    <td><span class="badge ${statusClass}">${node.status}</span></td>
+                    <td>${node.memory}</td>
+                    <td>${node.connections}</td>
+                </tr>
+            `;
+            });
+        } else {
+            html = '<tr><td colspan="4" class="text-center">无法获取Redis状态</td></tr>';
+        }
+        $('#redisNodesTable').html(html);
+    }
+
+    function loadDatabaseStatus() {
+        // 模拟数据库连接池状态
+        setTimeout(function () {
+            $('#activeConnections').text('12');
+            $('#idleConnections').text('8');
+            $('#maxConnections').text('20');
+            $('#totalConnections').text('20');
+        }, 600);
+    }
+
+    function loadApiPerformance() {
+        // 模拟接口性能数据
+        setTimeout(function () {
+            const apis = [
+                {
+                    path: '/api/flashsale/participate',
+                    requests: 1234,
+                    avgTime: '45ms',
+                    successRate: '99.8%',
+                    lastCall: '10:30:15',
+                    status: '正常'
+                },
+                {
+                    path: '/api/product/hot',
+                    requests: 567,
+                    avgTime: '23ms',
+                    successRate: '100%',
+                    lastCall: '10:29:45',
+                    status: '正常'
+                },
+                {
+                    path: '/api/user/login',
+                    requests: 89,
+                    avgTime: '156ms',
+                    successRate: '98.9%',
+                    lastCall: '10:28:30',
+                    status: '正常'
+                },
+                {
+                    path: '/api/order/create',
+                    requests: 234,
+                    avgTime: '89ms',
+                    successRate: '99.5%',
+                    lastCall: '10:27:20',
+                    status: '正常'
+                }
+            ];
+
+            let html = '';
+            apis.forEach(api => {
+                html += `
+                <tr>
+                    <td><code>${api.path}</code></td>
+                    <td>${api.requests}</td>
+                    <td>${api.avgTime}</td>
+                    <td>${api.successRate}</td>
+                    <td>${api.lastCall}</td>
+                    <td><span class="badge bg-success">${api.status}</span></td>
+                </tr>
+            `;
+            });
+
+            $('#apiPerformanceTable').html(html);
+        }, 1000);
+    }
+
+    function loadErrorLogs() {
+        // 模拟错误日志数据
+        setTimeout(function () {
+            const logs = [
+                {
+                    time: '10:25:30',
+                    level: 'WARN',
+                    module: 'RedisService',
+                    message: 'Redis连接池使用率较高',
+                    action: '查看详情'
+                },
+                {
+                    time: '10:20:15',
+                    level: 'ERROR',
+                    module: 'FlashSaleService',
+                    message: '秒杀库存扣减失败',
+                    action: '查看详情'
+                },
+                {time: '10:15:45', level: 'INFO', module: 'UserService', message: '用户登录成功', action: '查看详情'}
+            ];
+
+            let html = '';
+            if (logs.length === 0) {
+                html = '<tr><td colspan="5" class="text-center text-success">暂无错误日志</td></tr>';
+            } else {
+                logs.forEach(log => {
+                    const levelClass = log.level === 'ERROR' ? 'bg-danger' :
+                        log.level === 'WARN' ? 'bg-warning' : 'bg-info';
+
+                    html += `
+                    <tr>
+                        <td>${log.time}</td>
+                        <td><span class="badge ${levelClass}">${log.level}</span></td>
+                        <td>${log.module}</td>
+                        <td>${log.message}</td>
+                        <td><button class="btn btn-sm btn-outline-primary">${log.action}</button></td>
+                    </tr>
+                `;
+                });
+            }
+
+            $('#errorLogsTable').html(html);
+        }, 1200);
+    }
+
+    function updateCharts() {
+        // 这里应该使用Chart.js或其他图表库来绘制实时图表
+        // 由于简化，这里只是模拟
+        console.log('更新监控图表...');
+    }
+
+    function refreshMonitorData() {
+        // 显示加载状态
+        $('#redisNodesTable').html('<tr><td colspan="4" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        $('#apiPerformanceTable').html('<tr><td colspan="6" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        $('#errorLogsTable').html('<tr><td colspan="5" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+
+        // 重新加载数据
+        loadMonitorData();
+    }
+
+    function exportReport() {
+        console.log('导出监控报告');
+        alert('监控报告导出功能开发中...');
+    }
+</script>
+
+<%@ include file="../common/footer.jsp" %>

src/main/webapp/WEB-INF/views/admin/orders.jsp

@@ -0,0 +1,549 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="订单管理"/>
+<%@ include file="../common/header.jsp" %>
+
+<div class="container-fluid">
+    <div class="row">
+        <!-- 侧边栏 -->
+        <nav class="col-md-3 col-lg-2 d-md-block bg-light sidebar">
+            <div class="position-sticky pt-3">
+                <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
+                    <span>管理功能</span>
+                </h6>
+                <ul class="nav flex-column">
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin">
+                            <i class="fas fa-tachometer-alt"></i> 仪表盘
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/products">
+                            <i class="fas fa-box"></i> 商品管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/flashsales">
+                            <i class="fas fa-bolt"></i> 秒杀管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link active" href="${pageContext.request.contextPath}/admin/orders">
+                            <i class="fas fa-shopping-cart"></i> 订单管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/users">
+                            <i class="fas fa-users"></i> 用户管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/monitor">
+                            <i class="fas fa-chart-line"></i> 系统监控
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+
+        <!-- 主内容区域 -->
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4">
+            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">订单管理</h1>
+                <div class="btn-toolbar mb-2 mb-md-0">
+                    <div class="btn-group me-2">
+                        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="refreshOrders()">
+                            <i class="fas fa-sync-alt"></i> 刷新
+                        </button>
+                        <button type="button" class="btn btn-sm btn-success" onclick="exportOrders()">
+                            <i class="fas fa-download"></i> 导出
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 筛选和搜索 -->
+            <div class="row mb-3">
+                <div class="col-md-3">
+                    <div class="input-group">
+                        <input type="text" class="form-control" id="searchInput" placeholder="搜索订单号/用户...">
+                        <button class="btn btn-outline-secondary" type="button" onclick="searchOrders()">
+                            <i class="fas fa-search"></i>
+                        </button>
+                    </div>
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="statusFilter" onchange="filterOrders()">
+                        <option value="">全部状态</option>
+                        <option value="pending">待支付</option>
+                        <option value="paid">已支付</option>
+                        <option value="shipped">已发货</option>
+                        <option value="completed">已完成</option>
+                        <option value="cancelled">已取消</option>
+                    </select>
+                </div>
+                <div class="col-md-2">
+                    <input type="date" class="form-control" id="dateFilter" onchange="filterOrders()">
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="sortBy" onchange="sortOrders()">
+                        <option value="created_at">按创建时间</option>
+                        <option value="total_amount">按订单金额</option>
+                        <option value="status">按订单状态</option>
+                    </select>
+                </div>
+            </div>
+
+            <!-- 订单统计 -->
+            <div class="row mb-4">
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-primary" id="totalOrders">0</h5>
+                            <p class="card-text">总订单数</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-success" id="paidOrders">0</h5>
+                            <p class="card-text">已支付订单</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-warning" id="pendingOrders">0</h5>
+                            <p class="card-text">待处理订单</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-info" id="totalAmount">¥0</h5>
+                            <p class="card-text">总交易额</p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 订单列表 -->
+            <div class="card">
+                <div class="card-body">
+                    <div class="table-responsive">
+                        <table class="table table-striped table-hover">
+                            <thead>
+                            <tr>
+                                <th>订单号</th>
+                                <th>用户</th>
+                                <th>商品信息</th>
+                                <th>数量</th>
+                                <th>总金额</th>
+                                <th>状态</th>
+                                <th>创建时间</th>
+                                <th>操作</th>
+                            </tr>
+                            </thead>
+                            <tbody id="ordersTableBody">
+                            <tr>
+                                <td colspan="8" class="text-center">
+                                    <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                </td>
+                            </tr>
+                            </tbody>
+                        </table>
+                    </div>
+
+                    <!-- 分页 -->
+                    <nav aria-label="订单分页">
+                        <ul class="pagination justify-content-center" id="pagination">
+                            <!-- 分页按钮将通过JavaScript生成 -->
+                        </ul>
+                    </nav>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+
+<!-- 订单详情模态框 -->
+<div class="modal fade" id="orderDetailModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">订单详情</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body" id="orderDetailContent">
+                <!-- 订单详情内容 -->
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<style>
+    .sidebar {
+        position: fixed;
+        top: 56px;
+        bottom: 0;
+        left: 0;
+        z-index: 100;
+        padding: 48px 0 0;
+        box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
+    }
+
+    .sidebar .nav-link {
+        font-weight: 500;
+        color: #333;
+    }
+
+    .sidebar .nav-link.active {
+        color: #007bff;
+    }
+
+    main {
+        margin-left: 240px;
+    }
+
+    @media (max-width: 768px) {
+        main {
+            margin-left: 0;
+        }
+
+        .sidebar {
+            position: relative;
+            top: 0;
+        }
+    }
+</style>
+
+<script>
+    let currentPage = 1;
+    let pageSize = 10;
+    let totalPages = 1;
+
+    $(document).ready(function () {
+        loadOrders();
+        loadOrderStats();
+    });
+
+    function loadOrders(page = 1) {
+        currentPage = page;
+
+        // 显示加载状态
+        $('#orderTableBody').html('<tr><td colspan="8" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+
+        // 构建请求参数
+        let params = {
+            page: page,
+            size: 10
+        };
+
+        const keyword = $('#searchKeyword').val();
+        const status = $('#statusFilter').val();
+
+        if (keyword && keyword.trim()) {
+            params.keyword = keyword.trim();
+        }
+
+        if (status && status !== '') {
+            params.status = status;
+        }
+
+        // 调用真实API
+        $.get('${pageContext.request.contextPath}/api/admin/orders', params)
+            .done(function (response) {
+                if (response.success) {
+                    renderOrdersTable(response.data.orders);
+                    renderPagination(response.data.currentPage, response.data.totalPages);
+                } else {
+                    $('#orderTableBody').html('<tr><td colspan="8" class="text-center text-danger">获取订单数据失败: ' + response.message + '</td></tr>');
+                }
+            })
+            .fail(function () {
+                $('#orderTableBody').html('<tr><td colspan="8" class="text-center text-danger">网络请求失败，请稍后重试</td></tr>');
+            });
+    }
+
+    function loadOrderStats() {
+        // 调用真实API获取订单统计数据
+        $.get('${pageContext.request.contextPath}/api/admin/orders/stats')
+            .done(function (response) {
+                if (response.success) {
+                    updateOrderStats(response.data);
+                } else {
+                    console.error('获取订单统计数据失败:', response.message);
+                    // 显示默认值
+                    updateOrderStats({});
+                }
+            })
+            .fail(function () {
+                console.error('获取订单统计数据请求失败');
+                // 显示默认值
+                updateOrderStats({});
+            });
+    }
+
+    // 更新订单统计数据
+    function updateOrderStats(stats) {
+        $('#totalOrders').text(formatNumber(stats.totalOrders || 0));
+        $('#paidOrders').text(formatNumber(stats.paidOrders || 0));
+        $('#pendingOrders').text(formatNumber(stats.pendingOrders || 0));
+        $('#totalAmount').text('¥' + formatNumber(stats.totalAmount || 0));
+    }
+
+    function renderOrdersTable(orders) {
+        let html = '';
+
+        if (orders.length === 0) {
+            html = '<tr><td colspan="8" class="text-center">暂无订单数据</td></tr>';
+        } else {
+            orders.forEach(order => {
+                const statusText = getOrderStatusText(order.status);
+                const statusClass = getOrderStatusClass(order.status);
+
+                html += `
+                <tr>
+                    <td>
+                        <div class="fw-bold">` + order.id + `</div>
+                        ` + (order.isFlashSale ? '<small class="text-danger"><i class="fas fa-bolt"></i> 秒杀订单</small>' : '') + `
+                    </td>
+                    <td>` + order.username + `</td>
+                    <td>` + order.productName + `</td>
+                    <td>` + order.quantity + `</td>
+                    <td class="fw-bold">¥` + formatNumber(order.totalAmount || 0) + `</td>
+                    <td>
+                        <span class="badge ` + statusClass + `">
+                            ` + statusText + `
+                        </span>
+                    </td>
+                    <td>` + formatDateTime(order.createdAt) + `</td>
+                    <td>
+                        <div class="btn-group btn-group-sm">
+                            <button class="btn btn-outline-primary" onclick="viewOrderDetail('` + order.id + `')" title="查看详情">
+                                <i class="fas fa-eye"></i>
+                            </button>
+                            ` + (order.status === 2 ?
+                    '<button class="btn btn-outline-success" onclick="shipOrder(\'' + order.id + '\')" title="发货"><i class="fas fa-shipping-fast"></i></button>' : '') + `
+                            ` + (order.status === 1 ?
+                    '<button class="btn btn-outline-danger" onclick="cancelOrder(\'' + order.id + '\')" title="取消"><i class="fas fa-times"></i></button>' : '') + `
+                        </div>
+                    </td>
+                </tr>
+            `;
+            });
+        }
+
+        $('#ordersTableBody').html(html);
+    }
+
+    function getOrderStatusText(status) {
+        switch (status) {
+            case 'pending':
+                return '待支付';
+            case 'paid':
+                return '已支付';
+            case 'shipped':
+                return '已发货';
+            case 'completed':
+                return '已完成';
+            case 'cancelled':
+                return '已取消';
+            default:
+                return '未知';
+        }
+    }
+
+    function getOrderStatusClass(status) {
+        switch (status) {
+            case 'pending':
+                return 'bg-warning';
+            case 'paid':
+                return 'bg-success';
+            case 'shipped':
+                return 'bg-info';
+            case 'completed':
+                return 'bg-primary';
+            case 'cancelled':
+                return 'bg-secondary';
+            default:
+                return 'bg-light';
+        }
+    }
+
+    function renderPagination(total, pageSize) {
+        totalPages = Math.ceil(total / pageSize);
+        let html = '';
+
+        // 上一页
+        html += `
+        <li class="page-item ` + (currentPage === 1 ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadOrders(` + (currentPage - 1) + `)">上一页</a>
+        </li>
+    `;
+
+        // 页码
+        for (let i = 1; i <= totalPages; i++) {
+            html += `
+            <li class="page-item ` + (i === currentPage ? 'active' : '') + `">
+                <a class="page-link" href="#" onclick="loadOrders(` + i + `)">` + i + `</a>
+            </li>
+        `;
+        }
+
+        // 下一页
+        html += `
+        <li class="page-item ` + (currentPage === totalPages ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadOrders(` + (currentPage + 1) + `)">下一页</a>
+        </li>
+    `;
+
+        $('#pagination').html(html);
+    }
+
+    function refreshOrders() {
+        $('#ordersTableBody').html('<tr><td colspan="8" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        loadOrders(currentPage);
+        loadOrderStats();
+    }
+
+    function searchOrders() {
+        const keyword = $('#searchInput').val();
+        console.log('搜索订单:', keyword);
+        loadOrders(1);
+    }
+
+    function filterOrders() {
+        const status = $('#statusFilter').val();
+        const date = $('#dateFilter').val();
+        console.log('筛选订单:', {status, date});
+        loadOrders(1);
+    }
+
+    function sortOrders() {
+        const sortBy = $('#sortBy').val();
+        console.log('排序方式:', sortBy);
+        loadOrders(1);
+    }
+
+    function viewOrderDetail(orderId) {
+        console.log('查看订单详情:', orderId);
+
+        // 模拟获取订单详情
+        const orderDetail = `
+        <div class="row">
+            <div class="col-md-6">
+                <h6>订单信息</h6>
+                <table class="table table-sm">
+                    <tr><td>订单号:</td><td>` + orderId + `</td></tr>
+                    <tr><td>用户:</td><td>demo1</td></tr>
+                    <tr><td>状态:</td><td><span class="badge bg-success">已支付</span></td></tr>
+                    <tr><td>创建时间:</td><td>2025-06-29 10:30:15</td></tr>
+                    <tr><td>支付时间:</td><td>2025-06-29 10:31:20</td></tr>
+                </table>
+            </div>
+            <div class="col-md-6">
+                <h6>商品信息</h6>
+                <table class="table table-sm">
+                    <tr><td>商品名称:</td><td>iPhone 15 Pro Max</td></tr>
+                    <tr><td>单价:</td><td>¥8,888.00</td></tr>
+                    <tr><td>数量:</td><td>1</td></tr>
+                    <tr><td>总金额:</td><td class="fw-bold">¥8,888.00</td></tr>
+                </table>
+            </div>
+        </div>
+        <div class="row mt-3">
+            <div class="col-12">
+                <h6>收货地址</h6>
+                <p>北京市朝阳区xxx街道xxx号xxx小区xxx楼xxx室<br>
+                收货人: 张三 13800138001</p>
+            </div>
+        </div>
+    `;
+
+        $('#orderDetailContent').html(orderDetail);
+        $('#orderDetailModal').modal('show');
+    }
+
+    function shipOrder(orderId) {
+        if (confirm('确定要将此订单标记为已发货吗？')) {
+            console.log('发货订单:', orderId);
+
+            setTimeout(function () {
+                alert('订单已标记为已发货！');
+                refreshOrders();
+            }, 1000);
+        }
+    }
+
+    function cancelOrder(orderId) {
+        if (confirm('确定要取消此订单吗？此操作不可恢复。')) {
+            console.log('取消订单:', orderId);
+
+            setTimeout(function () {
+                alert('订单已取消！');
+                refreshOrders();
+            }, 1000);
+        }
+    }
+
+    function exportOrders() {
+        console.log('导出订单数据');
+        alert('订单数据导出功能开发中...');
+    }
+
+    // 工具函数
+    function formatNumber(num) {
+        if (num === null || num === undefined) return '0';
+        return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+    }
+
+    function formatDateTime(dateTime) {
+        if (!dateTime) return '';
+        return new Date(dateTime).toLocaleString('zh-CN');
+    }
+
+    function getOrderStatusClass(status) {
+        switch (status) {
+            case 1:
+                return 'bg-warning';  // 待支付
+            case 2:
+                return 'bg-success';  // 已支付
+            case 3:
+                return 'bg-info';     // 已发货
+            case 4:
+                return 'bg-primary';  // 已完成
+            case 5:
+                return 'bg-danger';   // 已取消
+            default:
+                return 'bg-secondary';
+        }
+    }
+
+    function getOrderStatusText(status) {
+        switch (status) {
+            case 1:
+                return '待支付';
+            case 2:
+                return '已支付';
+            case 3:
+                return '已发货';
+            case 4:
+                return '已完成';
+            case 5:
+                return '已取消';
+            default:
+                return '未知';
+        }
+    }
+</script>
+
+<%@ include file="../common/footer.jsp" %>

src/main/webapp/WEB-INF/views/admin/users.jsp

@@ -0,0 +1,409 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="用户管理"/>
+<%@ include file="../common/header.jsp" %>
+
+<div class="container-fluid">
+    <div class="row">
+        <!-- 侧边栏 -->
+        <nav class="col-md-3 col-lg-2 d-md-block bg-light sidebar">
+            <div class="position-sticky pt-3">
+                <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
+                    <span>管理功能</span>
+                </h6>
+                <ul class="nav flex-column">
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin">
+                            <i class="fas fa-tachometer-alt"></i> 仪表盘
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/products">
+                            <i class="fas fa-box"></i> 商品管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/flashsales">
+                            <i class="fas fa-bolt"></i> 秒杀管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/orders">
+                            <i class="fas fa-shopping-cart"></i> 订单管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link active" href="${pageContext.request.contextPath}/admin/users">
+                            <i class="fas fa-users"></i> 用户管理
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="${pageContext.request.contextPath}/admin/monitor">
+                            <i class="fas fa-chart-line"></i> 系统监控
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+
+        <!-- 主内容区域 -->
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4">
+            <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">用户管理</h1>
+                <div class="btn-toolbar mb-2 mb-md-0">
+                    <div class="btn-group me-2">
+                        <button type="button" class="btn btn-sm btn-outline-secondary" onclick="refreshUsers()">
+                            <i class="fas fa-sync-alt"></i> 刷新
+                        </button>
+                        <button type="button" class="btn btn-sm btn-success" onclick="exportUsers()">
+                            <i class="fas fa-download"></i> 导出
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 搜索和筛选 -->
+            <div class="row mb-3">
+                <div class="col-md-4">
+                    <div class="input-group">
+                        <input type="text" class="form-control" id="searchInput" placeholder="搜索用户名/邮箱/手机...">
+                        <button class="btn btn-outline-secondary" type="button" onclick="searchUsers()">
+                            <i class="fas fa-search"></i>
+                        </button>
+                    </div>
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="statusFilter" onchange="filterUsers()">
+                        <option value="">全部状态</option>
+                        <option value="1">正常</option>
+                        <option value="0">禁用</option>
+                    </select>
+                </div>
+                <div class="col-md-2">
+                    <input type="date" class="form-control" id="dateFilter" onchange="filterUsers()">
+                </div>
+                <div class="col-md-2">
+                    <select class="form-select" id="sortBy" onchange="sortUsers()">
+                        <option value="created_at">按注册时间</option>
+                        <option value="username">按用户名</option>
+                        <option value="last_login">按最后登录</option>
+                    </select>
+                </div>
+            </div>
+
+            <!-- 用户统计 -->
+            <div class="row mb-4">
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-primary" id="totalUsers">0</h5>
+                            <p class="card-text">总用户数</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-success" id="activeUsers">0</h5>
+                            <p class="card-text">活跃用户</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-warning" id="newUsers">0</h5>
+                            <p class="card-text">今日新增</p>
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-3">
+                    <div class="card text-center">
+                        <div class="card-body">
+                            <h5 class="card-title text-info" id="onlineUsers">0</h5>
+                            <p class="card-text">在线用户</p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 用户列表 -->
+            <div class="card">
+                <div class="card-body">
+                    <div class="table-responsive">
+                        <table class="table table-striped table-hover">
+                            <thead>
+                            <tr>
+                                <th>ID</th>
+                                <th>用户名</th>
+                                <th>邮箱</th>
+                                <th>手机号</th>
+                                <th>状态</th>
+                                <th>注册时间</th>
+                                <th>最后登录</th>
+                            </tr>
+                            </thead>
+                            <tbody id="usersTableBody">
+                            <tr>
+                                <td colspan="7" class="text-center">
+                                    <i class="fas fa-spinner fa-spin"></i> 加载中...
+                                </td>
+                            </tr>
+                            </tbody>
+                        </table>
+                    </div>
+
+                    <!-- 分页 -->
+                    <nav aria-label="用户分页">
+                        <ul class="pagination justify-content-center" id="pagination">
+                            <!-- 分页按钮将通过JavaScript生成 -->
+                        </ul>
+                    </nav>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+
+<style>
+    .sidebar {
+        position: fixed;
+        top: 56px;
+        bottom: 0;
+        left: 0;
+        z-index: 100;
+        padding: 48px 0 0;
+        box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
+    }
+
+    .sidebar .nav-link {
+        font-weight: 500;
+        color: #333;
+    }
+
+    .sidebar .nav-link.active {
+        color: #007bff;
+    }
+
+    main {
+        margin-left: 240px;
+    }
+
+    @media (max-width: 768px) {
+        main {
+            margin-left: 0;
+        }
+
+        .sidebar {
+            position: relative;
+            top: 0;
+        }
+    }
+</style>
+
+<script>
+    let currentPage = 1;
+    let pageSize = 10;
+    let totalPages = 1;
+
+    $(document).ready(function () {
+        loadUsers();
+        loadUserStats();
+    });
+
+    function loadUsers(page = 1) {
+        currentPage = page;
+
+        // 显示加载状态
+        $('#userTableBody').html('<tr><td colspan="7" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+
+        // 构建请求参数
+        let params = {
+            page: page,
+            size: 10
+        };
+
+        const keyword = $('#searchKeyword').val();
+        const status = $('#statusFilter').val();
+
+        if (keyword && keyword.trim()) {
+            params.keyword = keyword.trim();
+        }
+
+        if (status && status !== '') {
+            params.status = status;
+        }
+
+        // 调用真实API
+        $.get('${pageContext.request.contextPath}/api/admin/users', params)
+            .done(function (response) {
+                if (response.success) {
+                    renderUsersTable(response.data.users);
+                    renderPagination(response.data.currentPage, response.data.totalPages);
+                } else {
+                    $('#userTableBody').html('<tr><td colspan="7" class="text-center text-danger">获取用户数据失败: ' + response.message + '</td></tr>');
+                }
+            })
+            .fail(function () {
+                $('#userTableBody').html('<tr><td colspan="7" class="text-center text-danger">网络请求失败，请稍后重试</td></tr>');
+            });
+    }
+
+    function loadUserStats() {
+        // 调用真实API获取用户统计数据
+        $.get('${pageContext.request.contextPath}/api/admin/users/stats')
+            .done(function (response) {
+                if (response.success) {
+                    updateUserStats(response.data);
+                } else {
+                    console.error('获取用户统计数据失败:', response.message);
+                    // 显示默认值
+                    updateUserStats({});
+                }
+            })
+            .fail(function () {
+                console.error('获取用户统计数据请求失败');
+                // 显示默认值
+                updateUserStats({});
+            });
+    }
+
+    // 更新用户统计数据
+    function updateUserStats(stats) {
+        $('#totalUsers').text(formatNumber(stats.totalUsers || 0));
+        $('#activeUsers').text(formatNumber(stats.activeUsers || 0));
+        $('#newUsers').text(formatNumber(stats.newUsers || 0));
+        $('#onlineUsers').text(formatNumber(stats.onlineUsers || 0));
+    }
+
+    function renderUsersTable(users) {
+        let html = '';
+
+        if (users.length === 0) {
+            html = '<tr><td colspan="7" class="text-center">暂无用户数据</td></tr>';
+        } else {
+            users.forEach(user => {
+                html += `
+                <tr>
+                    <td>` + user.id + `</td>
+                    <td>
+                        <div class="d-flex align-items-center">
+                            <span class="me-2">` + user.username + `</span>
+                            ` + (user.isOnline ? '<span class="badge bg-success">在线</span>' : '') + `
+                        </div>
+                    </td>
+                    <td>` + (user.email || '-') + `</td>
+                    <td>` + (user.phone || '-') + `</td>
+                    <td>
+                        <span class="badge ` + getUserStatusClass(user.status) + `">
+                            ` + getUserStatusText(user.status) + `
+                        </span>
+                    </td>
+                    <td>` + formatDateTime(user.createdAt) + `</td>
+                    <td>` + (user.lastLogin ? formatDateTime(user.lastLogin) : '从未登录') + `</td>
+                </tr>
+            `;
+            });
+        }
+
+        $('#usersTableBody').html(html);
+    }
+
+    function renderPagination(total, pageSize) {
+        totalPages = Math.ceil(total / pageSize);
+        let html = '';
+
+        // 上一页
+        html += `
+        <li class="page-item ` + (currentPage === 1 ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadUsers(` + (currentPage - 1) + `)">上一页</a>
+        </li>
+    `;
+
+        // 页码
+        for (let i = 1; i <= totalPages; i++) {
+            html += `
+            <li class="page-item ` + (i === currentPage ? 'active' : '') + `">
+                <a class="page-link" href="#" onclick="loadUsers(` + i + `)">` + i + `</a>
+            </li>
+        `;
+        }
+
+        // 下一页
+        html += `
+        <li class="page-item ` + (currentPage === totalPages ? 'disabled' : '') + `">
+            <a class="page-link" href="#" onclick="loadUsers(` + (currentPage + 1) + `)">下一页</a>
+        </li>
+    `;
+
+        $('#pagination').html(html);
+    }
+
+    function refreshUsers() {
+        $('#usersTableBody').html('<tr><td colspan="7" class="text-center"><i class="fas fa-spinner fa-spin"></i> 加载中...</td></tr>');
+        loadUsers(currentPage);
+        loadUserStats();
+    }
+
+    function searchUsers() {
+        const keyword = $('#searchInput').val();
+        console.log('搜索用户:', keyword);
+        loadUsers(1);
+    }
+
+    function filterUsers() {
+        const status = $('#statusFilter').val();
+        const date = $('#dateFilter').val();
+        console.log('筛选用户:', {status, date});
+        loadUsers(1);
+    }
+
+    function sortUsers() {
+        const sortBy = $('#sortBy').val();
+        console.log('排序方式:', sortBy);
+        loadUsers(1);
+    }
+
+
+    function exportUsers() {
+        console.log('导出用户数据');
+        alert('用户数据导出功能开发中...');
+    }
+
+    // 工具函数
+    function formatNumber(num) {
+        if (num === null || num === undefined) return '0';
+        return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+    }
+
+    function formatDateTime(dateTime) {
+        if (!dateTime) return '';
+        return new Date(dateTime).toLocaleString('zh-CN');
+    }
+
+    function getUserStatusClass(status) {
+        switch (status) {
+            case 1:
+                return 'bg-success';  // 正常
+            case 0:
+                return 'bg-danger';   // 禁用
+            default:
+                return 'bg-secondary';
+        }
+    }
+
+    function getUserStatusText(status) {
+        switch (status) {
+            case 1:
+                return '正常';
+            case 0:
+                return '禁用';
+            default:
+                return '未知';
+        }
+    }
+</script>
+
+<%@ include file="../common/footer.jsp" %>

src/main/webapp/WEB-INF/views/common/footer.jsp

@@ -0,0 +1,244 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+
+<!-- 页脚 -->
+<footer class="bg-dark text-light mt-5 py-4">
+    <div class="container">
+        <div class="row">
+            <div class="col-md-6">
+                <h5><i class="fas fa-bolt"></i> 秒杀系统</h5>
+                <p class="mb-2">基于Spring Boot + Redis构建的高并发秒杀系统</p>
+                <p class="text-muted small">
+                    <i class="fas fa-server"></i> Redis集群 |
+                    <i class="fas fa-lock"></i> 分布式锁 |
+                    <i class="fas fa-tachometer-alt"></i> 高性能
+                </p>
+            </div>
+            <div class="col-md-3">
+                <h6>核心功能</h6>
+                <ul class="list-unstyled">
+                    <li><i class="fas fa-fire text-danger"></i> 秒杀抢购</li>
+                    <li><i class="fas fa-shopping-cart text-primary"></i> 购物车</li>
+                    <li><i class="fas fa-list-alt text-success"></i> 订单管理</li>
+                    <li><i class="fas fa-chart-line text-warning"></i> 销量排行</li>
+                </ul>
+            </div>
+            <div class="col-md-3">
+                <h6>技术特性</h6>
+                <ul class="list-unstyled">
+                    <li><i class="fas fa-database text-info"></i> Redis缓存</li>
+                    <li><i class="fas fa-shield-alt text-success"></i> 防超卖机制</li>
+                    <li><i class="fas fa-stopwatch text-warning"></i> 接口限流</li>
+                    <li><i class="fas fa-code text-primary"></i> Lua脚本</li>
+                </ul>
+            </div>
+        </div>
+
+        <hr class="my-4">
+
+        <div class="row align-items-center">
+            <div class="col-md-6">
+                <p class="mb-0 text-muted">
+                    &copy; 2025 秒杀系统演示项目.
+                    <span class="text-danger">❤</span>
+                    基于Redis集群构建
+                </p>
+            </div>
+            <div class="col-md-6 text-md-end">
+                <div class="d-flex justify-content-md-end align-items-center">
+                        <span class="me-3 text-muted small">
+                            <i class="fas fa-users"></i> 
+                            在线用户: <span id="onlineUserCount">-</span>
+                        </span>
+                    <span class="me-3 text-muted small">
+                            <i class="fas fa-clock"></i> 
+                            <span id="currentTime"></span>
+                        </span>
+                    <div class="btn-group" role="group">
+                        <button type="button" class="btn btn-outline-light btn-sm" onclick="checkSystemStatus()">
+                            <i class="fas fa-heartbeat"></i> 系统状态
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</footer>
+
+<!-- 系统状态模态框 -->
+<div class="modal fade" id="systemStatusModal" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">
+                    <i class="fas fa-heartbeat text-success"></i> 系统状态
+                </h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <div class="row">
+                    <div class="col-6">
+                        <div class="card border-success">
+                            <div class="card-body text-center">
+                                <i class="fas fa-database fa-2x text-success mb-2"></i>
+                                <h6>Redis集群</h6>
+                                <span class="badge bg-success">正常</span>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="col-6">
+                        <div class="card border-primary">
+                            <div class="card-body text-center">
+                                <i class="fas fa-server fa-2x text-primary mb-2"></i>
+                                <h6>应用服务</h6>
+                                <span class="badge bg-primary">运行中</span>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="mt-3">
+                    <h6>实时统计</h6>
+                    <div class="row text-center">
+                        <div class="col-3">
+                            <div class="border rounded p-2">
+                                <div class="text-primary fw-bold" id="totalUsers">-</div>
+                                <small class="text-muted">总用户</small>
+                            </div>
+                        </div>
+                        <div class="col-3">
+                            <div class="border rounded p-2">
+                                <div class="text-success fw-bold" id="totalProducts">-</div>
+                                <small class="text-muted">商品数</small>
+                            </div>
+                        </div>
+                        <div class="col-3">
+                            <div class="border rounded p-2">
+                                <div class="text-warning fw-bold" id="totalOrders">-</div>
+                                <small class="text-muted">订单数</small>
+                            </div>
+                        </div>
+                        <div class="col-3">
+                            <div class="border rounded p-2">
+                                <div class="text-danger fw-bold" id="activeFlashSales">-</div>
+                                <small class="text-muted">秒杀中</small>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
+                <button type="button" class="btn btn-primary" onclick="refreshSystemStatus()">
+                    <i class="fas fa-sync-alt"></i> 刷新
+                </button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+    // 更新当前时间
+    function updateCurrentTime() {
+        const now = new Date();
+        const timeString = now.toLocaleTimeString('zh-CN');
+        $('#currentTime').text(timeString);
+    }
+
+    // 获取在线用户数
+    function updateOnlineUserCount() {
+        // 只有在用户登录时才更新在线用户数，并且不在登录页面执行
+        <c:if test="${not empty sessionScope.user}">
+        // 检查当前页面是否为登录页面
+        if (window.location.pathname.indexOf('/login') === -1) {
+            $.get('${pageContext.request.contextPath}/api/user/online-stats')
+                .done(function (response) {
+                    if (response.success) {
+                        $('#onlineUserCount').text(response.data.onlineUserCount);
+                    }
+                })
+                .fail(function () {
+                    $('#onlineUserCount').text('N/A');
+                });
+        }
+        </c:if>
+    }
+
+    // 检查系统状态
+    function checkSystemStatus() {
+        $('#systemStatusModal').modal('show');
+        refreshSystemStatus();
+    }
+
+    // 刷新系统状态
+    function refreshSystemStatus() {
+        // 获取订单统计
+        $.get('${pageContext.request.contextPath}/api/order/statistics')
+            .done(function (response) {
+                if (response.success) {
+                    const stats = response.data;
+                    $('#totalOrders').text(stats.totalOrders || 0);
+                }
+            });
+
+        // 获取活跃秒杀数量
+        $.get('${pageContext.request.contextPath}/api/flashsale/active')
+            .done(function (response) {
+                if (response.success) {
+                    $('#activeFlashSales').text(response.data.length || 0);
+                }
+            });
+
+        // 模拟其他统计数据
+        $('#totalUsers').text(Math.floor(Math.random() * 1000) + 500);
+        $('#totalProducts').text(Math.floor(Math.random() * 100) + 50);
+    }
+
+    // 页面加载完成后执行
+    $(document).ready(function () {
+        // 立即更新时间
+        updateCurrentTime();
+
+        // 只有在用户登录时才更新在线用户数
+        <c:if test="${not empty sessionScope.user}">
+        updateOnlineUserCount();
+        // 每2分钟更新一次在线用户数（减少频率）
+        setInterval(updateOnlineUserCount, 120000);
+        </c:if>
+
+        // 每秒更新时间
+        setInterval(updateCurrentTime, 1000);
+    });
+
+    // 页面可见性变化时的处理
+    document.addEventListener('visibilitychange', function () {
+        if (!document.hidden) {
+            // 页面变为可见时，更新数据
+            updateOnlineUserCount();
+        }
+    });
+
+    // 全局错误处理
+    $(document).ajaxError(function (event, xhr, settings, thrownError) {
+        if (xhr.status === 401) {
+            showMessage('登录已过期，请重新登录', 'warning');
+            setTimeout(() => {
+                window.location.href = '${pageContext.request.contextPath}/login';
+            }, 2000);
+        } else if (xhr.status >= 500) {
+            showMessage('服务器错误，请稍后重试', 'error');
+        }
+    });
+
+    // 添加加载动画
+    function showLoading(element) {
+        $(element).html('<i class="fas fa-spinner fa-spin"></i> 加载中...');
+    }
+
+    // 隐藏加载动画
+    function hideLoading(element, originalText) {
+        $(element).html(originalText);
+    }
+</script>
+
+</body>
+</html>

src/main/webapp/WEB-INF/views/common/header.jsp

@@ -0,0 +1,272 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>${pageTitle} - 秒杀系统</title>
+
+    <!-- Bootstrap CSS -->
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <!-- Font Awesome -->
+    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
+    <!-- jQuery -->
+    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+    <!-- Bootstrap JS -->
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+
+    <style>
+        .navbar-brand {
+            font-weight: bold;
+            color: #dc3545 !important;
+        }
+
+        .flash-sale-badge {
+            background: linear-gradient(45deg, #ff6b6b, #ee5a24);
+            color: white;
+            padding: 2px 8px;
+            border-radius: 12px;
+            font-size: 0.8em;
+            margin-left: 5px;
+        }
+
+        .cart-badge {
+            position: absolute;
+            top: -8px;
+            right: -8px;
+            background: #dc3545;
+            color: white;
+            border-radius: 50%;
+            width: 20px;
+            height: 20px;
+            font-size: 0.7em;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+        }
+
+        .user-avatar {
+            width: 32px;
+            height: 32px;
+            border-radius: 50%;
+            background: #007bff;
+            color: white;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            font-weight: bold;
+        }
+
+        .online-indicator {
+            width: 8px;
+            height: 8px;
+            background: #28a745;
+            border-radius: 50%;
+            display: inline-block;
+            margin-right: 5px;
+        }
+    </style>
+</head>
+<body>
+<!-- 导航栏 -->
+<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+    <div class="container">
+        <a class="navbar-brand" href="${pageContext.request.contextPath}/">
+            <i class="fas fa-bolt"></i> 秒杀系统
+            <span class="flash-sale-badge">FLASH SALE</span>
+        </a>
+
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+
+        <div class="collapse navbar-collapse" id="navbarNav">
+            <ul class="navbar-nav me-auto">
+                <li class="nav-item">
+                    <a class="nav-link" href="${pageContext.request.contextPath}/">
+                        <i class="fas fa-home"></i> 首页
+                    </a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="${pageContext.request.contextPath}/products">
+                        <i class="fas fa-shopping-bag"></i> 商品列表
+                    </a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="${pageContext.request.contextPath}/flashsales">
+                        <i class="fas fa-fire"></i> 秒杀活动
+                    </a>
+                </li>
+            </ul>
+
+            <ul class="navbar-nav">
+                <c:choose>
+                    <c:when test="${not empty sessionScope.user}">
+                        <!-- 购物车 -->
+                        <li class="nav-item">
+                            <a class="nav-link position-relative" href="${pageContext.request.contextPath}/cart">
+                                <i class="fas fa-shopping-cart"></i> 购物车
+                                <span class="cart-badge" id="cartCount">0</span>
+                            </a>
+                        </li>
+
+                        <!-- 用户菜单 -->
+                        <li class="nav-item dropdown">
+                            <a class="nav-link dropdown-toggle d-flex align-items-center" href="#" id="userDropdown"
+                               role="button" data-bs-toggle="dropdown">
+                                <div class="user-avatar me-2">
+                                        ${sessionScope.user.username.substring(0,1).toUpperCase()}
+                                </div>
+                                <span class="online-indicator"></span>
+                                    ${sessionScope.user.username}
+                            </a>
+                            <ul class="dropdown-menu">
+                                <li><a class="dropdown-item" href="${pageContext.request.contextPath}/orders">
+                                    <i class="fas fa-list-alt"></i> 我的订单
+                                </a></li>
+                                <li><a class="dropdown-item" href="${pageContext.request.contextPath}/profile">
+                                    <i class="fas fa-user-cog"></i> 个人设置
+                                </a></li>
+                                <li>
+                                    <hr class="dropdown-divider">
+                                </li>
+                                <li><a class="dropdown-item" href="#" onclick="logout()">
+                                    <i class="fas fa-sign-out-alt"></i> 退出登录
+                                </a></li>
+                            </ul>
+                        </li>
+                    </c:when>
+                    <c:otherwise>
+                        <li class="nav-item">
+                            <a class="nav-link" href="${pageContext.request.contextPath}/login">
+                                <i class="fas fa-sign-in-alt"></i> 登录
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link" href="${pageContext.request.contextPath}/register">
+                                <i class="fas fa-user-plus"></i> 注册
+                            </a>
+                        </li>
+                    </c:otherwise>
+                </c:choose>
+            </ul>
+        </div>
+    </div>
+</nav>
+
+<!-- 消息提示区域 -->
+<div id="messageContainer" class="container mt-3">
+    <!-- 动态消息将在这里显示 -->
+</div>
+
+<script>
+    // 全局JavaScript函数
+
+    // 显示消息
+    function showMessage(message, type = 'info') {
+        const alertClass = {
+            'success': 'alert-success',
+            'error': 'alert-danger',
+            'warning': 'alert-warning',
+            'info': 'alert-info'
+        }[type] || 'alert-info';
+
+        const alertHtml = `
+                <div class="alert ${alertClass} alert-dismissible fade show" role="alert">
+                    ${message}
+                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+                </div>
+            `;
+
+        $('#messageContainer').html(alertHtml);
+
+        // 3秒后自动消失
+        setTimeout(() => {
+            $('.alert').alert('close');
+        }, 3000);
+    }
+
+    // 退出登录
+    function logout() {
+        if (confirm('确定要退出登录吗？')) {
+            $.post('${pageContext.request.contextPath}/api/user/logout')
+                .done(function (response) {
+                    if (response.success) {
+                        window.location.href = '${pageContext.request.contextPath}/login';
+                    } else {
+                        showMessage(response.message, 'error');
+                    }
+                })
+                .fail(function () {
+                    showMessage('退出登录失败，请重试', 'error');
+                });
+        }
+    }
+
+    // 更新购物车数量
+    function updateCartCount() {
+        <c:if test="${not empty sessionScope.user}">
+        $.get('${pageContext.request.contextPath}/api/cart/count')
+            .done(function (response) {
+                if (response.success) {
+                    $('#cartCount').text(response.data.count);
+                }
+            });
+        </c:if>
+    }
+
+    // 页面加载完成后执行
+    $(document).ready(function () {
+        updateCartCount();
+
+        // 每30秒更新一次购物车数量
+        setInterval(updateCartCount, 30000);
+    });
+
+    // 格式化价格
+    function formatPrice(price) {
+        return '¥' + parseFloat(price).toFixed(2);
+    }
+
+    // 格式化时间
+    function formatTime(timestamp) {
+        const date = new Date(timestamp);
+        return date.toLocaleString('zh-CN');
+    }
+
+    // 倒计时函数
+    function countdown(endTime, elementId) {
+        const element = document.getElementById(elementId);
+        if (!element) return;
+
+        function updateCountdown() {
+            const now = new Date().getTime();
+            const distance = endTime - now;
+
+            if (distance < 0) {
+                element.innerHTML = "已结束";
+                return;
+            }
+
+            const days = Math.floor(distance / (1000 * 60 * 60 * 24));
+            const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
+            const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
+            const seconds = Math.floor((distance % (1000 * 60)) / 1000);
+
+            let countdownText = "";
+            if (days > 0) countdownText += days + "天 ";
+            countdownText += String(hours).padStart(2, '0') + ":" +
+                String(minutes).padStart(2, '0') + ":" +
+                String(seconds).padStart(2, '0');
+
+            element.innerHTML = countdownText;
+        }
+
+        updateCountdown();
+        const interval = setInterval(updateCountdown, 1000);
+
+        // 返回清理函数
+        return () => clearInterval(interval);
+    }
+</script>

src/main/webapp/WEB-INF/views/error.jsp

@@ -0,0 +1,83 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+
+<c:set var="pageTitle" value="系统错误"/>
+<%@ include file="common/header.jsp" %>
+
+<div class="container mt-5">
+    <div class="row justify-content-center">
+        <div class="col-md-8">
+            <div class="card border-danger">
+                <div class="card-header bg-danger text-white text-center">
+                    <h4 class="mb-0">
+                        <i class="fas fa-exclamation-triangle"></i> 系统错误
+                    </h4>
+                </div>
+                <div class="card-body text-center">
+                    <div class="mb-4">
+                        <i class="fas fa-bug fa-5x text-danger mb-3"></i>
+                        <h5>抱歉，系统遇到了一个错误</h5>
+                        <p class="text-muted">我们正在努力修复这个问题，请稍后再试。</p>
+                    </div>
+
+                    <!-- 错误信息（仅在开发环境显示） -->
+                    <c:if test="${not empty error}">
+                        <div class="alert alert-warning text-start">
+                            <h6><i class="fas fa-info-circle"></i> 错误详情：</h6>
+                            <p class="mb-0">${error}</p>
+                        </div>
+                    </c:if>
+
+                    <c:if test="${not empty exception}">
+                        <div class="alert alert-danger text-start">
+                            <h6><i class="fas fa-bug"></i> 异常信息：</h6>
+                            <p class="mb-0">${exception.message}</p>
+                        </div>
+                    </c:if>
+
+                    <!-- 操作按钮 -->
+                    <div class="d-grid gap-2 d-md-flex justify-content-md-center">
+                        <button class="btn btn-primary" onclick="history.back()">
+                            <i class="fas fa-arrow-left"></i> 返回上页
+                        </button>
+                        <a href="${pageContext.request.contextPath}/" class="btn btn-success">
+                            <i class="fas fa-home"></i> 返回首页
+                        </a>
+                        <button class="btn btn-info" onclick="location.reload()">
+                            <i class="fas fa-redo"></i> 刷新页面
+                        </button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 常见问题解决方案 -->
+            <div class="card mt-4">
+                <div class="card-header">
+                    <h6><i class="fas fa-question-circle"></i> 常见问题解决方案</h6>
+                </div>
+                <div class="card-body">
+                    <div class="row">
+                        <div class="col-md-6">
+                            <h6>如果页面无法加载：</h6>
+                            <ul class="small">
+                                <li>检查网络连接</li>
+                                <li>清除浏览器缓存</li>
+                                <li>尝试刷新页面</li>
+                            </ul>
+                        </div>
+                        <div class="col-md-6">
+                            <h6>如果功能异常：</h6>
+                            <ul class="small">
+                                <li>重新登录账号</li>
+                                <li>检查输入信息</li>
+                                <li>联系系统管理员</li>
+                            </ul>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<%@ include file="common/footer.jsp" %>

src/main/webapp/WEB-INF/views/index.jsp

@@ -0,0 +1,472 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="fn" uri="http://flashsale.org/functions" %>
+
+<c:set var="pageTitle" value="首页" />
+<%@ include file="common/header.jsp" %>
+
+<!-- 轮播图 -->
+<div id="heroCarousel" class="carousel slide" data-bs-ride="carousel">
+    <div class="carousel-indicators">
+        <button type="button" data-bs-target="#heroCarousel" data-bs-slide-to="0" class="active"></button>
+        <button type="button" data-bs-target="#heroCarousel" data-bs-slide-to="1"></button>
+        <button type="button" data-bs-target="#heroCarousel" data-bs-slide-to="2"></button>
+    </div>
+    <div class="carousel-inner">
+        <div class="carousel-item active">
+            <div class="bg-gradient-danger text-white py-5" style="min-height: 400px;">
+                <div class="container d-flex align-items-center h-100">
+                    <div class="row w-100">
+                        <div class="col-md-6">
+                            <h1 class="display-4 fw-bold mb-4">
+                                <i class="fas fa-bolt"></i> 秒杀系统
+                            </h1>
+                            <p class="lead mb-4">基于Redis集群构建的高并发秒杀系统，支持分布式锁、接口限流、库存预热等核心功能。</p>
+                            <div class="d-flex gap-3">
+                                <a href="${pageContext.request.contextPath}/flashsales" class="btn btn-light btn-lg">
+                                    <i class="fas fa-fire"></i> 立即抢购
+                                </a>
+                                <a href="${pageContext.request.contextPath}/products" class="btn btn-outline-light btn-lg">
+                                    <i class="fas fa-shopping-bag"></i> 浏览商品
+                                </a>
+                            </div>
+                        </div>
+                        <div class="col-md-6 text-center">
+                            <i class="fas fa-rocket fa-10x opacity-50"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <div class="carousel-item">
+            <div class="bg-gradient-primary text-white py-5" style="min-height: 400px;">
+                <div class="container d-flex align-items-center h-100">
+                    <div class="row w-100">
+                        <div class="col-md-6">
+                            <h1 class="display-4 fw-bold mb-4">
+                                <i class="fas fa-shield-alt"></i> 防超卖机制
+                            </h1>
+                            <p class="lead mb-4">采用Redis分布式锁和Lua脚本，确保高并发场景下的数据一致性，彻底解决超卖问题。</p>
+                            <a href="#features" class="btn btn-light btn-lg">
+                                <i class="fas fa-info-circle"></i> 了解更多
+                            </a>
+                        </div>
+                        <div class="col-md-6 text-center">
+                            <i class="fas fa-lock fa-10x opacity-50"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <div class="carousel-item">
+            <div class="bg-gradient-success text-white py-5" style="min-height: 400px;">
+                <div class="container d-flex align-items-center h-100">
+                    <div class="row w-100">
+                        <div class="col-md-6">
+                            <h1 class="display-4 fw-bold mb-4">
+                                <i class="fas fa-tachometer-alt"></i> 高性能缓存
+                            </h1>
+                            <p class="lead mb-4">Redis集群架构，支持五种数据类型应用，实现毫秒级响应，轻松应对高并发访问。</p>
+                            <a href="#performance" class="btn btn-light btn-lg">
+                                <i class="fas fa-chart-line"></i> 性能指标
+                            </a>
+                        </div>
+                        <div class="col-md-6 text-center">
+                            <i class="fas fa-database fa-10x opacity-50"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <button class="carousel-control-prev" type="button" data-bs-target="#heroCarousel" data-bs-slide="prev">
+        <span class="carousel-control-prev-icon"></span>
+    </button>
+    <button class="carousel-control-next" type="button" data-bs-target="#heroCarousel" data-bs-slide="next">
+        <span class="carousel-control-next-icon"></span>
+    </button>
+</div>
+
+<div class="container my-5">
+    <!-- 正在进行的秒杀活动 -->
+    <section class="mb-5">
+        <div class="d-flex justify-content-between align-items-center mb-4">
+            <h2 class="fw-bold">
+                <i class="fas fa-fire text-danger"></i> 正在秒杀
+            </h2>
+            <a href="${pageContext.request.contextPath}/flashsales" class="btn btn-outline-danger">
+                查看全部 <i class="fas fa-arrow-right"></i>
+            </a>
+        </div>
+        
+        <div id="activeFlashSales" class="row">
+            <!-- 动态加载秒杀活动 -->
+            <div class="col-12 text-center py-5">
+                <i class="fas fa-spinner fa-spin fa-2x text-muted"></i>
+                <p class="text-muted mt-2">加载中...</p>
+            </div>
+        </div>
+    </section>
+    
+    <!-- 热门商品 -->
+    <section class="mb-5">
+        <div class="d-flex justify-content-between align-items-center mb-4">
+            <h2 class="fw-bold">
+                <i class="fas fa-star text-warning"></i> 热门商品
+            </h2>
+            <a href="${pageContext.request.contextPath}/products" class="btn btn-outline-primary">
+                查看全部 <i class="fas fa-arrow-right"></i>
+            </a>
+        </div>
+        
+        <div id="hotProducts" class="row">
+            <!-- 动态加载热门商品 -->
+            <div class="col-12 text-center py-5">
+                <i class="fas fa-spinner fa-spin fa-2x text-muted"></i>
+                <p class="text-muted mt-2">加载中...</p>
+            </div>
+        </div>
+    </section>
+    
+    <!-- 系统特性 -->
+    <section id="features" class="mb-5">
+        <h2 class="text-center fw-bold mb-5">
+            <i class="fas fa-cogs"></i> 系统特性
+        </h2>
+        
+        <div class="row g-4">
+            <div class="col-md-3 col-sm-6">
+                <div class="card h-100 text-center border-0 shadow-sm">
+                    <div class="card-body">
+                        <i class="fas fa-bolt fa-3x text-danger mb-3"></i>
+                        <h5 class="card-title">秒杀抢购</h5>
+                        <p class="card-text text-muted">高并发秒杀系统，支持大量用户同时抢购</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card h-100 text-center border-0 shadow-sm">
+                    <div class="card-body">
+                        <i class="fas fa-shield-alt fa-3x text-success mb-3"></i>
+                        <h5 class="card-title">防超卖</h5>
+                        <p class="card-text text-muted">分布式锁机制，确保库存数据一致性</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card h-100 text-center border-0 shadow-sm">
+                    <div class="card-body">
+                        <i class="fas fa-database fa-3x text-info mb-3"></i>
+                        <h5 class="card-title">Redis缓存</h5>
+                        <p class="card-text text-muted">五种数据类型应用，毫秒级响应</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card h-100 text-center border-0 shadow-sm">
+                    <div class="card-body">
+                        <i class="fas fa-tachometer-alt fa-3x text-warning mb-3"></i>
+                        <h5 class="card-title">接口限流</h5>
+                        <p class="card-text text-muted">多种限流策略，防止恶意刷单</p>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+    
+    <!-- 性能指标 -->
+    <section id="performance" class="mb-5">
+        <h2 class="text-center fw-bold mb-5">
+            <i class="fas fa-chart-line"></i> 性能指标
+        </h2>
+        
+        <div class="row g-4">
+            <div class="col-md-3 col-sm-6">
+                <div class="card border-primary">
+                    <div class="card-body text-center">
+                        <h3 class="text-primary fw-bold" id="qpsCounter">10000+</h3>
+                        <p class="card-text">QPS并发处理</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card border-success">
+                    <div class="card-body text-center">
+                        <h3 class="text-success fw-bold" id="responseTime">&lt;100ms</h3>
+                        <p class="card-text">平均响应时间</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card border-warning">
+                    <div class="card-body text-center">
+                        <h3 class="text-warning fw-bold" id="successRate">99.9%</h3>
+                        <p class="card-text">系统可用性</p>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3 col-sm-6">
+                <div class="card border-info">
+                    <div class="card-body text-center">
+                        <h3 class="text-info fw-bold" id="concurrentUsers">50000+</h3>
+                        <p class="card-text">并发用户支持</p>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+</div>
+
+<script>
+$(document).ready(function() {
+    // 加载正在进行的秒杀活动
+    loadActiveFlashSales();
+    
+    // 加载热门商品
+    loadHotProducts();
+    
+    // 启动性能指标动画
+    animateCounters();
+});
+
+// 加载正在进行的秒杀活动
+function loadActiveFlashSales() {
+    $.get('${pageContext.request.contextPath}/api/flashsale/active')
+        .done(function(response) {
+            if (response.success && response.data.length > 0) {
+                renderFlashSales(response.data.slice(0, 4)); // 只显示前4个
+            } else {
+                $('#activeFlashSales').html(`
+                    <div class="col-12 text-center py-5">
+                        <i class="fas fa-info-circle fa-2x text-muted"></i>
+                        <p class="text-muted mt-2">暂无进行中的秒杀活动</p>
+                    </div>
+                `);
+            }
+        })
+        .fail(function() {
+            $('#activeFlashSales').html(`
+                <div class="col-12 text-center py-5">
+                    <i class="fas fa-exclamation-triangle fa-2x text-warning"></i>
+                    <p class="text-muted mt-2">加载失败，请刷新页面重试</p>
+                </div>
+            `);
+        });
+}
+
+// 渲染秒杀活动
+function renderFlashSales(flashSales) {
+    let html = '';
+    
+    flashSales.forEach(function(flashSale) {
+        const discountPercent = Math.round((1 - flashSale.flashPrice / flashSale.originalPrice) * 100);
+        
+        html += `
+            <div class="col-lg-3 col-md-6 mb-4">
+                <div class="card h-100 border-danger">
+                    <div class="position-relative">
+                        <img src="` + (flashSale.productImageUrl || '${pageContext.request.contextPath}/images/default-product.svg') + `"
+                             class="card-img-top" alt="` + flashSale.productName + `" style="height: 200px; object-fit: cover;"
+                             onerror="this.src='${pageContext.request.contextPath}/images/default-product.svg'; this.onerror=null;">
+                        <div class="position-absolute top-0 start-0 bg-danger text-white px-2 py-1 rounded-end">
+                            <small><i class="fas fa-fire"></i> 秒杀中</small>
+                        </div>
+                        <div class="position-absolute top-0 end-0 bg-warning text-dark px-2 py-1 rounded-start">
+                            <small>${discountPercent}% OFF</small>
+                        </div>
+                    </div>
+                    <div class="card-body">
+                        <h6 class="card-title text-truncate">` + flashSale.productName + `</h6>
+                        <div class="d-flex justify-content-between align-items-center mb-2">
+                            <div>
+                                <span class="text-danger fw-bold fs-5">¥` + (flashSale.flashPrice ? flashSale.flashPrice.toFixed(2) : '0.00') + `</span>
+                                <small class="text-muted text-decoration-line-through ms-2">¥` + (flashSale.originalPrice ? flashSale.originalPrice.toFixed(2) : '0.00') + `</small>
+                            </div>
+                        </div>
+                        <div class="mb-2">
+                            <small class="text-muted">剩余: ` + (flashSale.remainingStock || 0) + `件</small>
+                            <div class="progress" style="height: 4px;">
+                                <div class="progress-bar bg-danger" style="width: ` + ((flashSale.remainingStock || 0) / (flashSale.flashStock || 1) * 100) + `%"></div>
+                            </div>
+                        </div>
+                        <div class="text-center">
+                            <div class="text-danger fw-bold mb-2" id="countdown_${flashSale.id}">
+                                计算中...
+                            </div>
+                            <button class="btn btn-danger btn-sm w-100" onclick="participateFlashSale(${flashSale.id})">
+                                <i class="fas fa-bolt"></i> 立即抢购
+                            </button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        `;
+        
+        // 启动倒计时
+        setTimeout(() => {
+            if (flashSale.timeToEnd > 0) {
+                countdown(Date.now() + flashSale.timeToEnd, 'countdown_' + flashSale.id);
+            }
+        }, 100);
+    });
+    
+    $('#activeFlashSales').html(html);
+}
+
+// 加载热门商品
+function loadHotProducts() {
+    $.get('${pageContext.request.contextPath}/api/product/hot?limit=8')
+        .done(function(response) {
+            if (response.success && response.data.length > 0) {
+                renderHotProducts(response.data);
+            } else {
+                $('#hotProducts').html(`
+                    <div class="col-12 text-center py-5">
+                        <i class="fas fa-info-circle fa-2x text-muted"></i>
+                        <p class="text-muted mt-2">暂无热门商品</p>
+                    </div>
+                `);
+            }
+        })
+        .fail(function() {
+            $('#hotProducts').html(`
+                <div class="col-12 text-center py-5">
+                    <i class="fas fa-exclamation-triangle fa-2x text-warning"></i>
+                    <p class="text-muted mt-2">加载失败，请刷新页面重试</p>
+                </div>
+            `);
+        });
+}
+
+// 渲染热门商品
+function renderHotProducts(products) {
+    let html = '';
+    
+    products.forEach(function(product) {
+        html += `
+            <div class="col-lg-3 col-md-6 mb-4">
+                <div class="card h-100">
+                    <img src="${product.imageUrl || '${pageContext.request.contextPath}/images/default-product.svg'}"
+                         class="card-img-top" alt="${product.name}" style="height: 200px; object-fit: cover;"
+                         onerror="this.src='${pageContext.request.contextPath}/images/default-product.svg'; this.onerror=null;">
+                    <div class="card-body">
+                        <h6 class="card-title text-truncate">` + product.name + `</h6>
+                        <p class="card-text text-muted small text-truncate">` + (product.description || '暂无描述') + `</p>
+                        <div class="d-flex justify-content-between align-items-center">
+                            <span class="text-primary fw-bold">¥` + (product.price ? product.price.toFixed(2) : '0.00') + `</span>
+                            <small class="text-muted">库存: ` + (product.stock || 0) + `</small>
+                        </div>
+                        <div class="mt-2">
+                            <button class="btn btn-primary btn-sm w-100" onclick="addToCart(` + product.id + `)">
+                                <i class="fas fa-cart-plus"></i> 加入购物车
+                            </button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        `;
+    });
+    
+    $('#hotProducts').html(html);
+}
+
+// 参与秒杀
+function participateFlashSale(flashSaleId) {
+    <c:choose>
+        <c:when test="${not empty sessionScope.user}">
+            if (confirm('确定要参与这个秒杀活动吗？')) {
+                $.ajax({
+                    url: '${pageContext.request.contextPath}/api/flashsale/participate',
+                    type: 'POST',
+                    contentType: 'application/json',
+                    data: JSON.stringify({
+                        flashSaleId: flashSaleId,
+                        quantity: 1
+                    }),
+                    success: function(response) {
+                        if (response.success) {
+                            showMessage('秒杀成功！订单已生成', 'success');
+                            setTimeout(() => {
+                                window.location.href = '${pageContext.request.contextPath}/orders';
+                            }, 2000);
+                        } else {
+                            showMessage(response.message, 'error');
+                        }
+                    },
+                    error: function() {
+                        showMessage('秒杀失败，请重试', 'error');
+                    }
+                });
+            }
+        </c:when>
+        <c:otherwise>
+            showMessage('请先登录', 'warning');
+            setTimeout(() => {
+                window.location.href = '${pageContext.request.contextPath}/login';
+            }, 1000);
+        </c:otherwise>
+    </c:choose>
+}
+
+// 添加到购物车
+function addToCart(productId) {
+    <c:choose>
+        <c:when test="${not empty sessionScope.user}">
+            $.ajax({
+                url: '${pageContext.request.contextPath}/api/cart/add',
+                type: 'POST',
+                contentType: 'application/json',
+                data: JSON.stringify({
+                    productId: productId,
+                    quantity: 1
+                }),
+                success: function(response) {
+                    if (response.success) {
+                        showMessage('商品已添加到购物车', 'success');
+                        updateCartCount();
+                    } else {
+                        showMessage(response.message, 'error');
+                    }
+                },
+                error: function() {
+                    showMessage('添加失败，请重试', 'error');
+                }
+            });
+        </c:when>
+        <c:otherwise>
+            showMessage('请先登录', 'warning');
+            setTimeout(() => {
+                window.location.href = '${pageContext.request.contextPath}/login';
+            }, 1000);
+        </c:otherwise>
+    </c:choose>
+}
+
+// 性能指标动画
+function animateCounters() {
+    const counters = [
+        { id: 'qpsCounter', target: 10000, suffix: '+' },
+        { id: 'concurrentUsers', target: 50000, suffix: '+' }
+    ];
+    
+    counters.forEach(counter => {
+        animateCounter(counter.id, counter.target, counter.suffix);
+    });
+}
+
+function animateCounter(elementId, target, suffix = '') {
+    const element = document.getElementById(elementId);
+    let current = 0;
+    const increment = target / 100;
+    const timer = setInterval(() => {
+        current += increment;
+        if (current >= target) {
+            current = target;
+            clearInterval(timer);
+        }
+        element.textContent = Math.floor(current).toLocaleString() + suffix;
+    }, 20);
+}
+</script>
+
+<%@ include file="common/footer.jsp" %>

src/main/webapp/WEB-INF/views/login.jsp

@@ -0,0 +1,268 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+
+<c:set var="pageTitle" value="用户登录"/>
+<%@ include file="common/header.jsp" %>
+
+<div class="container mt-5">
+    <div class="row justify-content-center">
+        <div class="col-md-6 col-lg-4">
+            <div class="card shadow">
+                <div class="card-header bg-primary text-white text-center">
+                    <h4 class="mb-0">
+                        <i class="fas fa-sign-in-alt"></i> 用户登录
+                    </h4>
+                </div>
+                <div class="card-body">
+                    <form id="loginForm">
+                        <div class="mb-3">
+                            <label for="username" class="form-label">
+                                <i class="fas fa-user"></i> 用户名
+                            </label>
+                            <input type="text" class="form-control" id="username" name="username"
+                                   placeholder="请输入用户名" required>
+                            <div class="invalid-feedback"></div>
+                        </div>
+
+                        <div class="mb-3">
+                            <label for="password" class="form-label">
+                                <i class="fas fa-lock"></i> 密码
+                            </label>
+                            <div class="input-group">
+                                <input type="password" class="form-control" id="password" name="password"
+                                       placeholder="请输入密码" required>
+                                <button class="btn btn-outline-secondary" type="button" id="togglePassword">
+                                    <i class="fas fa-eye"></i>
+                                </button>
+                            </div>
+                            <div class="invalid-feedback"></div>
+                        </div>
+
+                        <div class="mb-3 form-check">
+                            <input type="checkbox" class="form-check-input" id="rememberMe">
+                            <label class="form-check-label" for="rememberMe">
+                                记住我
+                            </label>
+                        </div>
+
+                        <div class="d-grid">
+                            <button type="submit" class="btn btn-primary" id="loginBtn">
+                                <i class="fas fa-sign-in-alt"></i> 登录
+                            </button>
+                        </div>
+                    </form>
+
+                    <hr>
+
+                    <div class="text-center">
+                        <p class="mb-2">还没有账号？</p>
+                        <a href="${pageContext.request.contextPath}/register" class="btn btn-outline-success">
+                            <i class="fas fa-user-plus"></i> 立即注册
+                        </a>
+                    </div>
+
+                    <!-- 快速登录演示账号 -->
+                    <div class="mt-3">
+                        <small class="text-muted">演示账号（快速登录）：</small>
+                        <div class="d-flex gap-2 mt-2">
+                            <button type="button" class="btn btn-sm btn-outline-info"
+                                    onclick="quickLogin('demo1', '123456')">
+                                demo1
+                            </button>
+                            <button type="button" class="btn btn-sm btn-outline-info"
+                                    onclick="quickLogin('demo2', '123456')">
+                                demo2
+                            </button>
+                            <button type="button" class="btn btn-sm btn-outline-info"
+                                    onclick="quickLogin('admin', 'admin123')">
+                                admin
+                            </button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 系统特性介绍 -->
+            <div class="card mt-4">
+                <div class="card-header">
+                    <h6 class="mb-0">
+                        <i class="fas fa-info-circle"></i> 系统特性
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="row text-center">
+                        <div class="col-6 mb-3">
+                            <i class="fas fa-bolt fa-2x text-danger mb-2"></i>
+                            <h6>秒杀抢购</h6>
+                            <small class="text-muted">高并发秒杀系统</small>
+                        </div>
+                        <div class="col-6 mb-3">
+                            <i class="fas fa-shield-alt fa-2x text-success mb-2"></i>
+                            <h6>防超卖</h6>
+                            <small class="text-muted">分布式锁机制</small>
+                        </div>
+                        <div class="col-6">
+                            <i class="fas fa-database fa-2x text-info mb-2"></i>
+                            <h6>Redis缓存</h6>
+                            <small class="text-muted">高性能缓存</small>
+                        </div>
+                        <div class="col-6">
+                            <i class="fas fa-tachometer-alt fa-2x text-warning mb-2"></i>
+                            <h6>接口限流</h6>
+                            <small class="text-muted">防刷机制</small>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+    $(document).ready(function () {
+        // 密码显示/隐藏切换
+        $('#togglePassword').click(function () {
+            const passwordField = $('#password');
+            const icon = $(this).find('i');
+
+            if (passwordField.attr('type') === 'password') {
+                passwordField.attr('type', 'text');
+                icon.removeClass('fa-eye').addClass('fa-eye-slash');
+            } else {
+                passwordField.attr('type', 'password');
+                icon.removeClass('fa-eye-slash').addClass('fa-eye');
+            }
+        });
+
+        // 表单提交
+        $('#loginForm').submit(function (e) {
+            e.preventDefault();
+
+            const username = $('#username').val().trim();
+            const password = $('#password').val();
+
+            // 基本验证
+            if (!username) {
+                showFieldError('username', '请输入用户名');
+                return;
+            }
+
+            if (!password) {
+                showFieldError('password', '请输入密码');
+                return;
+            }
+
+            if (password.length < 6) {
+                showFieldError('password', '密码长度至少6位');
+                return;
+            }
+
+            // 清除之前的错误状态
+            clearFieldErrors();
+
+            // 显示加载状态
+            const loginBtn = $('#loginBtn');
+            const originalText = loginBtn.html();
+            loginBtn.html('<i class="fas fa-spinner fa-spin"></i> 登录中...').prop('disabled', true);
+
+            // 发送登录请求
+            $.ajax({
+                url: '${pageContext.request.contextPath}/api/user/login',
+                type: 'POST',
+                contentType: 'application/json',
+                data: JSON.stringify({
+                    username: username,
+                    password: password
+                }),
+                success: function (response) {
+                    if (response.success) {
+                        showMessage('登录成功，正在跳转...', 'success');
+
+                        // 保存记住我状态
+                        if ($('#rememberMe').is(':checked')) {
+                            localStorage.setItem('rememberedUsername', username);
+                        } else {
+                            localStorage.removeItem('rememberedUsername');
+                        }
+
+                        // 跳转到首页或之前访问的页面
+                        setTimeout(() => {
+                            const returnUrl = new URLSearchParams(window.location.search).get('returnUrl');
+                            window.location.href = returnUrl || '${pageContext.request.contextPath}/';
+                        }, 1000);
+                    } else {
+                        showMessage(response.message, 'error');
+                    }
+                },
+                error: function (xhr) {
+                    if (xhr.status === 400) {
+                        const response = xhr.responseJSON;
+                        showMessage(response.message || '登录失败', 'error');
+                    } else {
+                        showMessage('网络错误，请稍后重试', 'error');
+                    }
+                },
+                complete: function () {
+                    // 恢复按钮状态
+                    loginBtn.html(originalText).prop('disabled', false);
+                }
+            });
+        });
+
+        // 页面加载时检查记住的用户名
+        const rememberedUsername = localStorage.getItem('rememberedUsername');
+        if (rememberedUsername) {
+            $('#username').val(rememberedUsername);
+            $('#rememberMe').prop('checked', true);
+            $('#password').focus();
+        } else {
+            $('#username').focus();
+        }
+
+        // 回车键快速登录
+        $(document).keypress(function (e) {
+            if (e.which === 13) { // Enter键
+                $('#loginForm').submit();
+            }
+        });
+    });
+
+    // 快速登录演示账号
+    function quickLogin(username, password) {
+        $('#username').val(username);
+        $('#password').val(password);
+        $('#loginForm').submit();
+    }
+
+    // 显示字段错误
+    function showFieldError(fieldName, message) {
+        const field = $('#' + fieldName);
+        field.addClass('is-invalid');
+        field.siblings('.invalid-feedback').text(message);
+    }
+
+    // 清除字段错误
+    function clearFieldErrors() {
+        $('.form-control').removeClass('is-invalid');
+        $('.invalid-feedback').text('');
+    }
+
+    // 检查登录状态
+    function checkLoginStatus() {
+        $.get('${pageContext.request.contextPath}/api/user/current')
+            .done(function (response) {
+                if (response.success) {
+                    // 已登录，跳转到首页
+                    window.location.href = '${pageContext.request.contextPath}/';
+                }
+            });
+    }
+
+    // 页面加载时检查登录状态（延迟执行，避免影响用户输入）
+    // 注释掉自动检查，避免页面刷新影响用户输入
+    // setTimeout(function() {
+    //     checkLoginStatus();
+    // }, 5000);
+</script>
+
+<%@ include file="common/footer.jsp" %>

src/main/webapp/WEB-INF/views/register.jsp

@@ -0,0 +1,383 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+
+<c:set var="pageTitle" value="用户注册"/>
+<%@ include file="common/header.jsp" %>
+
+<div class="container mt-5">
+    <div class="row justify-content-center">
+        <div class="col-md-6 col-lg-5">
+            <div class="card shadow">
+                <div class="card-header bg-success text-white text-center">
+                    <h4 class="mb-0">
+                        <i class="fas fa-user-plus"></i> 用户注册
+                    </h4>
+                </div>
+                <div class="card-body">
+                    <form id="registerForm">
+                        <div class="mb-3">
+                            <label for="username" class="form-label">
+                                <i class="fas fa-user"></i> 用户名 <span class="text-danger">*</span>
+                            </label>
+                            <input type="text" class="form-control" id="username" name="username"
+                                   placeholder="3-50个字符，支持字母数字下划线" required>
+                            <div class="invalid-feedback"></div>
+                            <div class="form-text">
+                                <i class="fas fa-info-circle"></i> 用户名将作为您的登录凭证
+                            </div>
+                        </div>
+
+                        <div class="mb-3">
+                            <label for="password" class="form-label">
+                                <i class="fas fa-lock"></i> 密码 <span class="text-danger">*</span>
+                            </label>
+                            <div class="input-group">
+                                <input type="password" class="form-control" id="password" name="password"
+                                       placeholder="至少6位字符" required>
+                                <button class="btn btn-outline-secondary" type="button" id="togglePassword">
+                                    <i class="fas fa-eye"></i>
+                                </button>
+                            </div>
+                            <div class="invalid-feedback"></div>
+                            <div class="progress mt-1" style="height: 3px;">
+                                <div class="progress-bar" id="passwordStrength" role="progressbar"
+                                     style="width: 0%"></div>
+                            </div>
+                            <small class="form-text text-muted" id="passwordStrengthText">密码强度：无</small>
+                        </div>
+
+                        <div class="mb-3">
+                            <label for="confirmPassword" class="form-label">
+                                <i class="fas fa-lock"></i> 确认密码 <span class="text-danger">*</span>
+                            </label>
+                            <input type="password" class="form-control" id="confirmPassword" name="confirmPassword"
+                                   placeholder="请再次输入密码" required>
+                            <div class="invalid-feedback"></div>
+                        </div>
+
+                        <div class="mb-3">
+                            <label for="email" class="form-label">
+                                <i class="fas fa-envelope"></i> 邮箱
+                            </label>
+                            <input type="email" class="form-control" id="email" name="email"
+                                   placeholder="example@domain.com">
+                            <div class="invalid-feedback"></div>
+                        </div>
+
+                        <div class="mb-3">
+                            <label for="phone" class="form-label">
+                                <i class="fas fa-phone"></i> 手机号
+                            </label>
+                            <input type="tel" class="form-control" id="phone" name="phone"
+                                   placeholder="请输入手机号">
+                            <div class="invalid-feedback"></div>
+                        </div>
+
+                        <div class="mb-3 form-check">
+                            <input type="checkbox" class="form-check-input" id="agreeTerms" required>
+                            <label class="form-check-label" for="agreeTerms">
+                                我已阅读并同意 <a href="#" data-bs-toggle="modal"
+                                                  data-bs-target="#termsModal">用户协议</a> 和
+                                <a href="#" data-bs-toggle="modal" data-bs-target="#privacyModal">隐私政策</a>
+                            </label>
+                            <div class="invalid-feedback">请同意用户协议和隐私政策</div>
+                        </div>
+
+                        <div class="d-grid">
+                            <button type="submit" class="btn btn-success" id="registerBtn">
+                                <i class="fas fa-user-plus"></i> 注册
+                            </button>
+                        </div>
+                    </form>
+
+                    <hr>
+
+                    <div class="text-center">
+                        <p class="mb-2">已有账号？</p>
+                        <a href="${pageContext.request.contextPath}/login" class="btn btn-outline-primary">
+                            <i class="fas fa-sign-in-alt"></i> 立即登录
+                        </a>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- 用户协议模态框 -->
+<div class="modal fade" id="termsModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">用户协议</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <h6>1. 服务条款</h6>
+                <p>本系统为秒杀演示系统，仅供学习和演示使用。</p>
+
+                <h6>2. 用户责任</h6>
+                <p>用户应当合理使用系统功能，不得进行恶意操作。</p>
+
+                <h6>3. 隐私保护</h6>
+                <p>我们承诺保护用户隐私，不会泄露用户个人信息。</p>
+
+                <h6>4. 免责声明</h6>
+                <p>本系统仅为演示目的，不承担任何商业责任。</p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
+                <button type="button" class="btn btn-primary" data-bs-dismiss="modal"
+                        onclick="$('#agreeTerms').prop('checked', true)">同意
+                </button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- 隐私政策模态框 -->
+<div class="modal fade" id="privacyModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">隐私政策</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <h6>信息收集</h6>
+                <p>我们仅收集必要的用户信息用于系统功能实现。</p>
+
+                <h6>信息使用</h6>
+                <p>收集的信息仅用于系统功能，不会用于其他目的。</p>
+
+                <h6>信息保护</h6>
+                <p>我们采用适当的技术措施保护用户信息安全。</p>
+
+                <h6>信息共享</h6>
+                <p>我们不会与第三方共享用户个人信息。</p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
+                <button type="button" class="btn btn-primary" data-bs-dismiss="modal"
+                        onclick="$('#agreeTerms').prop('checked', true)">同意
+                </button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+    $(document).ready(function () {
+        // 密码显示/隐藏切换
+        $('#togglePassword').click(function () {
+            const passwordField = $('#password');
+            const icon = $(this).find('i');
+
+            if (passwordField.attr('type') === 'password') {
+                passwordField.attr('type', 'text');
+                icon.removeClass('fa-eye').addClass('fa-eye-slash');
+            } else {
+                passwordField.attr('type', 'password');
+                icon.removeClass('fa-eye-slash').addClass('fa-eye');
+            }
+        });
+
+        // 密码强度检测
+        $('#password').on('input', function () {
+            const password = $(this).val();
+            const strength = calculatePasswordStrength(password);
+            updatePasswordStrengthUI(strength);
+        });
+
+        // 确认密码验证
+        $('#confirmPassword').on('input', function () {
+            const password = $('#password').val();
+            const confirmPassword = $(this).val();
+
+            if (confirmPassword && password !== confirmPassword) {
+                $(this).addClass('is-invalid');
+                $(this).siblings('.invalid-feedback').text('两次输入的密码不一致');
+            } else {
+                $(this).removeClass('is-invalid');
+            }
+        });
+
+        // 用户名实时验证
+        $('#username').on('input', function () {
+            const username = $(this).val();
+            if (username.length >= 3) {
+                checkUsernameAvailability(username);
+            }
+        });
+
+        // 表单提交
+        $('#registerForm').submit(function (e) {
+            e.preventDefault();
+
+            if (!validateForm()) {
+                return;
+            }
+
+            const formData = {
+                username: $('#username').val().trim(),
+                password: $('#password').val(),
+                confirmPassword: $('#confirmPassword').val(),
+                email: $('#email').val().trim() || null,
+                phone: $('#phone').val().trim() || null
+            };
+
+            // 显示加载状态
+            const registerBtn = $('#registerBtn');
+            const originalText = registerBtn.html();
+            registerBtn.html('<i class="fas fa-spinner fa-spin"></i> 注册中...').prop('disabled', true);
+
+            // 发送注册请求
+            $.ajax({
+                url: '${pageContext.request.contextPath}/api/user/register',
+                type: 'POST',
+                contentType: 'application/json',
+                data: JSON.stringify(formData),
+                success: function (response) {
+                    if (response.success) {
+                        showMessage('注册成功！正在跳转到登录页面...', 'success');
+                        setTimeout(() => {
+                            window.location.href = '${pageContext.request.contextPath}/login';
+                        }, 2000);
+                    } else {
+                        showMessage(response.message, 'error');
+                    }
+                },
+                error: function (xhr) {
+                    if (xhr.status === 400) {
+                        const response = xhr.responseJSON;
+                        showMessage(response.message || '注册失败', 'error');
+                    } else {
+                        showMessage('网络错误，请稍后重试', 'error');
+                    }
+                },
+                complete: function () {
+                    // 恢复按钮状态
+                    registerBtn.html(originalText).prop('disabled', false);
+                }
+            });
+        });
+    });
+
+    // 表单验证
+    function validateForm() {
+        let isValid = true;
+
+        // 清除之前的错误状态
+        $('.form-control').removeClass('is-invalid');
+
+        // 用户名验证
+        const username = $('#username').val().trim();
+        if (!username) {
+            showFieldError('username', '请输入用户名');
+            isValid = false;
+        } else if (username.length < 3 || username.length > 50) {
+            showFieldError('username', '用户名长度必须在3-50个字符之间');
+            isValid = false;
+        } else if (!/^[a-zA-Z0-9_]+$/.test(username)) {
+            showFieldError('username', '用户名只能包含字母、数字和下划线');
+            isValid = false;
+        }
+
+        // 密码验证
+        const password = $('#password').val();
+        if (!password) {
+            showFieldError('password', '请输入密码');
+            isValid = false;
+        } else if (password.length < 6) {
+            showFieldError('password', '密码长度至少6位');
+            isValid = false;
+        }
+
+        // 确认密码验证
+        const confirmPassword = $('#confirmPassword').val();
+        if (!confirmPassword) {
+            showFieldError('confirmPassword', '请确认密码');
+            isValid = false;
+        } else if (password !== confirmPassword) {
+            showFieldError('confirmPassword', '两次输入的密码不一致');
+            isValid = false;
+        }
+
+        // 邮箱验证（可选）
+        const email = $('#email').val().trim();
+        if (email && !/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
+            showFieldError('email', '请输入有效的邮箱地址');
+            isValid = false;
+        }
+
+        // 手机号验证（可选）
+        const phone = $('#phone').val().trim();
+        if (phone && !/^1[3-9]\d{9}$/.test(phone)) {
+            showFieldError('phone', '请输入有效的手机号');
+            isValid = false;
+        }
+
+        // 协议同意验证
+        if (!$('#agreeTerms').is(':checked')) {
+            $('#agreeTerms').addClass('is-invalid');
+            isValid = false;
+        }
+
+        return isValid;
+    }
+
+    // 计算密码强度
+    function calculatePasswordStrength(password) {
+        let score = 0;
+
+        if (password.length >= 6) score += 20;
+        if (password.length >= 8) score += 20;
+        if (/[a-z]/.test(password)) score += 20;
+        if (/[A-Z]/.test(password)) score += 20;
+        if (/[0-9]/.test(password)) score += 10;
+        if (/[^a-zA-Z0-9]/.test(password)) score += 10;
+
+        return Math.min(score, 100);
+    }
+
+    // 更新密码强度UI
+    function updatePasswordStrengthUI(strength) {
+        const progressBar = $('#passwordStrength');
+        const strengthText = $('#passwordStrengthText');
+
+        let color, text;
+
+        if (strength < 30) {
+            color = 'bg-danger';
+            text = '弱';
+        } else if (strength < 60) {
+            color = 'bg-warning';
+            text = '中等';
+        } else if (strength < 80) {
+            color = 'bg-info';
+            text = '强';
+        } else {
+            color = 'bg-success';
+            text = '很强';
+        }
+
+        progressBar.removeClass('bg-danger bg-warning bg-info bg-success').addClass(color);
+        progressBar.css('width', strength + '%');
+        strengthText.text('密码强度：' + text);
+    }
+
+    // 检查用户名可用性
+    function checkUsernameAvailability(username) {
+        // 这里可以添加实时检查用户名是否已存在的逻辑
+        // 为了演示，暂时省略
+    }
+
+    // 显示字段错误
+    function showFieldError(fieldName, message) {
+        const field = $('#' + fieldName);
+        field.addClass('is-invalid');
+        field.siblings('.invalid-feedback').text(message);
+    }
+</script>
+
+<%@ include file="common/footer.jsp" %>