diff --git a/flash-sale-frontend/src/api/modules/admin.ts b/flash-sale-frontend/src/api/modules/admin.ts
index cd80f23..1727c87 100644
--- a/flash-sale-frontend/src/api/modules/admin.ts
+++ b/flash-sale-frontend/src/api/modules/admin.ts
@@ -102,7 +102,10 @@ export const adminApi = {
     return request.post<ApiResponse<any>>('/api/admin/products', data).then((res) => ({ ...res, data: normalizeAdminProduct(res.data) }))
   },
   updateProduct(id: number, data: Record<string, unknown>): Promise<ApiResponse<AdminProductRow>> {
-    return request.put<ApiResponse<any>>(`/api/admin/products/${id}`, data).then((res) => ({ ...res, data: normalizeAdminProduct(res.data) }))
+    return request.put<ApiResponse<any>>(`/api/admin/products/${id}`, data).then((res) => ({
+      ...res,
+      data: res.data ? normalizeAdminProduct(res.data) : undefined,
+    }))
   },
   deleteProduct(id: number): Promise<ApiResponse> { return request.delete(`/api/admin/products/${id}`) },
   getReviewStats(): Promise<ApiResponse<AdminReviewStats>> { return request.get('/api/admin/reviews/stats') },
diff --git a/flash-sale-frontend/src/components/common/ImageUpload.vue b/flash-sale-frontend/src/components/common/ImageUpload.vue
index cadcb56..334da85 100644
--- a/flash-sale-frontend/src/components/common/ImageUpload.vue
+++ b/flash-sale-frontend/src/components/common/ImageUpload.vue
@@ -4,6 +4,7 @@
       :class="{ 'hide-upload': fileList.length >= limit }"
       :action="uploadUrl"
       :headers="headers"
+      :with-credentials="true"
       :file-list="fileList"
       :limit="limit"
       :multiple="multiple"
@@ -67,7 +68,7 @@ import { ref, computed, watch } from 'vue'
 import { ElMessage } from 'element-plus'
 import { resolveImageUrl } from '@/utils/image'
 import { useUserStore } from '@/stores/user'
-import type { UploadFile, UploadFiles, UploadRawFile } from 'element-plus'
+import type { UploadFile, UploadRawFile } from 'element-plus'
 
 interface Props {
   modelValue?: string | string[]
@@ -92,6 +93,10 @@ const emit = defineEmits<{
   change: [value: string | string[]]
 }>()
 
+interface UploadFileWithRawUrl extends UploadFile {
+  rawUrl?: string
+}
+
 const userStore = useUserStore()
 
 // 上传相关
@@ -100,32 +105,42 @@ const headers = computed(() => ({
   Authorization: `Bearer ${userStore.token}`
 }))
 
-const fileList = ref<UploadFile[]>([])
+const fileList = ref<UploadFileWithRawUrl[]>([])
 const previewVisible = ref(false)
 const previewUrl = ref('')
 const previewName = ref('')
 const previewSize = ref(0)
 
+const buildFileItem = (rawUrl: string, index: number): UploadFileWithRawUrl => ({
+  name: props.multiple ? `image-${index}` : 'image',
+  url: resolveImageUrl(rawUrl),
+  status: 'success',
+  uid: `${Date.now()}-${index}`,
+  rawUrl,
+})
+
+const getRawUrl = (file: UploadFile) => {
+  const currentFile = file as UploadFileWithRawUrl
+  return currentFile.rawUrl?.trim() || file.url?.trim() || ''
+}
+
 // 初始化文件列表
 watch(
   () => props.modelValue,
   (val) => {
-    if (val) {
-      if (Array.isArray(val)) {
-        fileList.value = val.map((url, index) => ({
-          name: `image-${index}`,
-          url: resolveImageUrl(url),
-          status: 'success',
-          uid: Date.now() + index
-        } as UploadFile))
-      } else {
-        fileList.value = [{
-          name: 'image',
-          url: resolveImageUrl(val),
-          status: 'success',
-          uid: Date.now()
-        } as UploadFile]
-      }
+    const nextFiles = Array.isArray(val)
+      ? val
+          .map((url) => String(url || '').trim())
+          .filter(Boolean)
+          .map((url, index) => buildFileItem(url, index))
+      : val && String(val).trim()
+        ? [buildFileItem(String(val).trim(), 0)]
+        : []
+
+    const currentRawUrls = fileList.value.map((file) => getRawUrl(file))
+    const nextRawUrls = nextFiles.map((file) => getRawUrl(file))
+    if (JSON.stringify(currentRawUrls) !== JSON.stringify(nextRawUrls)) {
+      fileList.value = nextFiles
     }
   },
   { immediate: true }
@@ -185,9 +200,33 @@ const beforeUpload = (rawFile: UploadRawFile) => {
 }
 
 // 上传成功
-const handleSuccess = (response: any, file: UploadFile, files: UploadFiles) => {
+const handleSuccess = (response: any, file: UploadFile) => {
   if (response.success) {
-    file.url = resolveImageUrl(response.data?.url || response.imageUrl || response.data?.imageUrl)
+    const rawImageUrl = String(response.imageUrl || response.data?.imageUrl || response.data?.url || '').trim()
+    if (!rawImageUrl) {
+      handleRemove(file)
+      ElMessage.error('上传成功但未返回图片地址')
+      return
+    }
+
+    const uploadedFile = file as UploadFileWithRawUrl
+    uploadedFile.status = 'success'
+    uploadedFile.url = resolveImageUrl(rawImageUrl)
+    uploadedFile.rawUrl = rawImageUrl
+
+    if (props.limit === 1 && !props.multiple) {
+      fileList.value = [uploadedFile]
+    } else {
+      const nextFiles = [...fileList.value]
+      const index = nextFiles.findIndex((item) => item.uid === uploadedFile.uid)
+      if (index > -1) {
+        nextFiles[index] = uploadedFile
+      } else {
+        nextFiles.push(uploadedFile)
+      }
+      fileList.value = nextFiles
+    }
+
     updateValue()
     ElMessage.success('上传成功')
   } else {
@@ -197,13 +236,13 @@ const handleSuccess = (response: any, file: UploadFile, files: UploadFiles) => {
 }
 
 // 上传失败
-const handleError = (error: Error, file: UploadFile) => {
+const handleError = (error: Error) => {
   ElMessage.error('上传失败，请重试')
   console.error('Upload error:', error)
 }
 
 // 超出数量限制
-const handleExceed = (files: File[]) => {
+const handleExceed = () => {
   ElMessage.warning(`最多只能上传 ${props.limit} 张图片`)
 }
 
@@ -225,18 +264,16 @@ const handleDownload = (file: UploadFile) => {
 
 // 删除图片
 const handleRemove = (file: UploadFile) => {
-  const index = fileList.value.findIndex(f => f.uid === file.uid)
-  if (index > -1) {
-    fileList.value.splice(index, 1)
-    updateValue()
-  }
+  fileList.value = fileList.value.filter(f => f.uid !== file.uid)
+  updateValue()
 }
 
 // 更新值
 const updateValue = () => {
   const urls = fileList.value
-    .filter(f => f.status === 'success' && f.url)
-    .map(f => f.url!)
+    .filter(f => f.status === 'success')
+    .map(f => getRawUrl(f))
+    .filter(Boolean)
   
   const value = props.multiple ? urls : urls[0] || ''
   emit('update:modelValue', value)
diff --git a/flash-sale-frontend/src/utils/image.ts b/flash-sale-frontend/src/utils/image.ts
index 5c0927d..b5fe2eb 100644
--- a/flash-sale-frontend/src/utils/image.ts
+++ b/flash-sale-frontend/src/utils/image.ts
@@ -28,6 +28,30 @@ export const resolveImageUrl = (value?: string | null) => {
   return imageUrl.startsWith('/') ? `${baseUrl}${imageUrl}` : `${baseUrl}/${imageUrl}`
 }
 
+export const normalizeStorageImageUrl = (value?: string | null) => {
+  if (!value || !String(value).trim()) {
+    return ''
+  }
+
+  const imageUrl = String(value).trim()
+  if (ABSOLUTE_URL_PATTERN.test(imageUrl)) {
+    try {
+      const parsed = new URL(imageUrl.startsWith('//') ? `http:${imageUrl}` : imageUrl)
+      if (
+        parsed.pathname.startsWith('/uploads/') ||
+        parsed.pathname.startsWith('/images/') ||
+        parsed.pathname.startsWith('/static/')
+      ) {
+        return parsed.pathname
+      }
+    } catch {
+      return imageUrl
+    }
+  }
+
+  return imageUrl
+}
+
 export const applyFallbackImage = (event: Event) => {
   const target = event.target as HTMLImageElement | null
   if (!target) return
diff --git a/flash-sale-frontend/src/utils/normalizers.ts b/flash-sale-frontend/src/utils/normalizers.ts
index 716fb11..28e46b1 100644
--- a/flash-sale-frontend/src/utils/normalizers.ts
+++ b/flash-sale-frontend/src/utils/normalizers.ts
@@ -16,7 +16,7 @@ import type {
   AdminRecentOrderRow,
   AdminUserRow,
 } from '@/types/admin'
-import { DEFAULT_PRODUCT_IMAGE, resolveImageUrl } from '@/utils/image'
+import { DEFAULT_PRODUCT_IMAGE, normalizeStorageImageUrl, resolveImageUrl } from '@/utils/image'
 
 const toNumber = (value: unknown, fallback = 0) => {
   const result = Number(value)
@@ -280,7 +280,7 @@ export const normalizeAdminProduct = (product: Record<string, any>): AdminProduc
   price: toNumber(product.price),
   stock: toNumber(product.stock),
   status: toNumber(product.status, 1),
-  imageUrl: resolveImageUrl(toString(product.imageUrl, '')),
+  imageUrl: normalizeStorageImageUrl(toString(product.imageUrl, '')),
   createdAt: toIsoLikeString(product.createdAt),
   updatedAt: product.updatedAt ? toIsoLikeString(product.updatedAt) : undefined,
   totalSales: toNumber(product.totalSales),
diff --git a/src/main/java/com/org/flashsalesystem/controller/ApiController.java b/src/main/java/com/org/flashsalesystem/controller/ApiController.java
index 53bc446..a6802d5 100644
--- a/src/main/java/com/org/flashsalesystem/controller/ApiController.java
+++ b/src/main/java/com/org/flashsalesystem/controller/ApiController.java
@@ -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());
diff --git a/src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java b/src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java
index 83efe97..cf4873b 100644
--- a/src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java
+++ b/src/main/java/com/org/flashsalesystem/repository/FlashSaleRepository.java
@@ -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
      */
diff --git a/src/main/java/com/org/flashsalesystem/service/AdminService.java b/src/main/java/com/org/flashsalesystem/service/AdminService.java
index 96b8cb9..5158831 100644
--- a/src/main/java/com/org/flashsalesystem/service/AdminService.java
+++ b/src/main/java/com/org/flashsalesystem/service/AdminService.java
@@ -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());
diff --git a/src/main/java/com/org/flashsalesystem/service/FileUploadService.java b/src/main/java/com/org/flashsalesystem/service/FileUploadService.java
index 9173db8..cea69e3 100644
--- a/src/main/java/com/org/flashsalesystem/service/FileUploadService.java
+++ b/src/main/java/com/org/flashsalesystem/service/FileUploadService.java
@@ -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";
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/com/org/flashsalesystem/service/ProductService.java b/src/main/java/com/org/flashsalesystem/service/ProductService.java
index 06530e9..817c198 100644
--- a/src/main/java/com/org/flashsalesystem/service/ProductService.java
+++ b/src/main/java/com/org/flashsalesystem/service/ProductService.java
@@ -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);
     }
 
diff --git a/src/main/java/com/org/flashsalesystem/service/RedisService.java b/src/main/java/com/org/flashsalesystem/service/RedisService.java
index 13e7e99..e2db565 100644
--- a/src/main/java/com/org/flashsalesystem/service/RedisService.java
+++ b/src/main/java/com/org/flashsalesystem/service/RedisService.java
@@ -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
      */