后台完成修复，初始化项目

2025-07-01 17:18:04 +08:00
commit 5916f076b7
74 changed files with 17444 additions and 0 deletions
--- a/src/main/java/com/org/flashsalesystem/entity/FlashSale.java
+++ b/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;
+    }
+}