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fix: 修复商品图片管理和缓存一致性问题

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- 重构 ImageUpload 组件，使用 rawUrl 跟踪原始路径
- 新增 normalizeStorageImageUrl 避免存储绝对 URL
- 商品增删改后同步清除缓存和旧图片文件
- 修复秒杀活动列表商品图片为空的问题
This commit is contained in:
YoVinchen
2026-03-14 21:05:42 +08:00
parent 0f67f6cc49
commit 098ea9ad02
10 changed files with 193 additions and 39 deletions
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2
src/main/java/com/org/flashsalesystem/controller/ApiController.java
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@@ -93,7 +93,7 @@ public class ApiController {
item.put("id", flashSale.getId());
item.put("productId", flashSale.getProductId());
item.put("productName", flashSale.getProductName());
item.put("productImage", "");
item.put("productImage", flashSale.getProductImageUrl());
item.put("originalPrice", flashSale.getOriginalPrice());
item.put("flashPrice", flashSale.getFlashPrice());
item.put("flashStock", flashSale.getFlashStock());

5
src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java
View File

@@ -112,6 +112,11 @@ public interface FlashSaleRepository extends JpaRepository<FlashSale, Long> {
".flashStock > 0")
List<FlashSale> findActiveFlashSalesWithStock(@Param("now") LocalDateTime now);
/**
* 根据商品ID查找所有秒杀活动
*/
List<FlashSale> findByProductId(Long productId);
/**
* 统计指定时间范围内正在进行的秒杀活动数量
*/

48
src/main/java/com/org/flashsalesystem/service/AdminService.java
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@@ -69,6 +69,12 @@ public class AdminService {
@Autowired
private RequestMetricsService requestMetricsService;
@Autowired
private FileUploadService fileUploadService;
@Autowired
private ProductService productService;
/**
* 获取仪表盘统计数据
*/
@@ -638,6 +644,8 @@ public class AdminService {
Optional<Product> productOpt = productRepository.findById(id);
if (productOpt.isPresent()) {
Product product = productOpt.get();
String oldImageUrl = product.getImageUrl();
boolean stockUpdated = false;
if (productData.containsKey("name")) {
product.setName((String) productData.get("name"));
@@ -647,6 +655,7 @@ public class AdminService {
}
if (productData.containsKey("stock")) {
product.setStock(Integer.parseInt(productData.get("stock").toString()));
stockUpdated = true;
}
if (productData.containsKey("category")) {
product.setCategory((String) productData.get("category"));
@@ -663,6 +672,16 @@ public class AdminService {
product.setUpdatedAt(LocalDateTime.now());
productRepository.save(product);
if (stockUpdated) {
productService.syncProductStockCache(id, product.getStock());
}
productService.invalidateProductCaches(id);
if (!Objects.equals(oldImageUrl, product.getImageUrl())) {
fileUploadService.deleteProductImage(oldImageUrl);
}
// 清除引用该商品的秒杀活动缓存，确保图片/名称/价格更新及时生效
invalidateFlashSaleCacheByProductId(id);
} else {
throw new RuntimeException("商品不存在");
}
@@ -672,12 +691,37 @@ public class AdminService {
}
}
/**
* 清除引用指定商品的所有秒杀活动缓存
*/
private void invalidateFlashSaleCacheByProductId(Long productId) {
try {
List<com.org.flashsalesystem.entity.FlashSale> flashSales =
flashSaleRepository.findByProductId(productId);
for (com.org.flashsalesystem.entity.FlashSale fs : flashSales) {
String cacheKey = "flashsale:" + fs.getId();
redisService.delete(cacheKey);
log.debug("清除秒杀活动缓存: {}", cacheKey);
}
} catch (Exception e) {
log.warn("清除秒杀活动缓存失败: {}", e.getMessage());
}
}
/**
* 删除商品
*/
public void deleteProduct(Long id) {
try {
if (productRepository.existsById(id)) {
Optional<Product> productOpt = productRepository.findById(id);
if (productOpt.isPresent()) {
Product product = productOpt.get();
// 清理磁盘上的图片文件
fileUploadService.deleteProductImage(product.getImageUrl());
productService.invalidateProductCaches(id);
productService.removeProductStockCache(id);
// 清除关联的秒杀活动缓存
invalidateFlashSaleCacheByProductId(id);
productRepository.deleteById(id);
} else {
throw new RuntimeException("商品不存在");
@@ -705,6 +749,8 @@ public class AdminService {
product.setUpdatedAt(LocalDateTime.now());
Product savedProduct = productRepository.save(product);
productService.syncProductStockCache(savedProduct.getId(), savedProduct.getStock());
productService.invalidateProductCaches(savedProduct.getId());
Map<String, Object> result = new HashMap<>();
result.put("id", savedProduct.getId());

14
src/main/java/com/org/flashsalesystem/service/FileUploadService.java
View File

@@ -129,15 +129,23 @@ public class FileUploadService {
return;
}
// 只处理本地上传的图片
String normalizedImageUrl = imageUrl;
if (!imageUrl.startsWith(urlPrefix)) {
int prefixIndex = imageUrl.indexOf(urlPrefix);
if (prefixIndex >= 0) {
normalizedImageUrl = imageUrl.substring(prefixIndex);
}
}
// 只处理本地上传的图片
if (!normalizedImageUrl.startsWith(urlPrefix)) {
log.warn("非本地图片，跳过删除: {}", imageUrl);
return;
}
try {
// 从URL中提取相对路径
String relativePath = imageUrl.substring(urlPrefix.length());
String relativePath = normalizedImageUrl.substring(urlPrefix.length());
Path filePath = Paths.get(uploadPath + relativePath);
if (Files.exists(filePath)) {
@@ -200,4 +208,4 @@ public class FileUploadService {
return "application/octet-stream";
}
}
}
}

27
src/main/java/com/org/flashsalesystem/service/ProductService.java
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@@ -253,6 +253,27 @@ public class ProductService {
return productDTO;
}
public void invalidateProductCaches(Long productId) {
if (productId != null) {
redisService.delete(PRODUCT_CACHE_PREFIX + productId);
}
clearProductListCache();
}
public void syncProductStockCache(Long productId, Integer stock) {
if (productId == null || stock == null) {
return;
}
redisService.set(PRODUCT_STOCK_PREFIX + productId, stock);
}
public void removeProductStockCache(Long productId) {
if (productId == null) {
return;
}
redisService.delete(PRODUCT_STOCK_PREFIX + productId);
}
/**
* 更新商品库存
*/
@@ -452,8 +473,10 @@ public class ProductService {
* 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
Set<String> listCacheKeys = redisService.keys(PRODUCT_LIST_CACHE_PREFIX + "*");
if (!listCacheKeys.isEmpty()) {
redisService.delete(listCacheKeys);
}
redisService.delete(HOT_PRODUCTS_CACHE);
}

8
src/main/java/com/org/flashsalesystem/service/RedisService.java
View File

@@ -319,6 +319,14 @@ public class RedisService {
return redisTemplate.delete(keys);
}
/**
* 根据模式查找键
*/
public Set<String> keys(String pattern) {
Set<String> keys = stringRedisTemplate.keys(pattern);
return keys == null ? Collections.emptySet() : keys;
}
/**
* 检查键是否存在
*/