fix: 修复推荐数据为空时显示默认图片并优化精品推荐加载逻辑

修复首页推荐数据为空时未显示默认图片的问题
优化精品推荐组件的数据加载逻辑，添加循环查询和错误处理

@@ -8,8 +8,8 @@
       </view>
     </view>
     <view class="grid grid-cols-2 gap-3">
-      <view v-for="scooter in featuredScooters" :key="scooter.id"
-        class="bg-white rounded-lg shadow-sm overflow-hidden" @tap="() => onProductClick(scooter)">
+      <view v-for="scooter in featuredScooters" :key="scooter.id" class="bg-white rounded-lg shadow-sm overflow-hidden"
+        @tap="() => onProductClick(scooter)">
         <view class="relative p-2">
           <image :src="scooter.front_photo" mode="aspectFill" class="w-full h-36 object-cover rounded-lg" />
           <view
@@ -81,23 +81,45 @@ const onProductClick = (scooter) => {
 
 /**
  * 加载精品推荐数据
+ * 循环查询直到获取到数据或确认没有更多数据
  */
 const loadFeaturedData = async () => {
   try {
-    const res = await getRecommendVehicleAPI({ section: 3, page: 0, limit: 4 })
-    if (res.code) {
-      // 处理图片数据
-      const processedData = res.data.list.map(item => ({
-        ...item,
-        front_photo: item.front_photo || DEFAULT_COVER_IMG,
-        // 确保价格为数字类型
-        price: Number(item.price) || 0,
-        market_price: Number(item.market_price) || 0
-      }))
-      featuredScooters.value = processedData
+    let page = 0
+    let hasData = false
+    let maxPages = 10 // 设置最大查询页数，避免无限循环
+
+    while (!hasData && page < maxPages) {
+      const res = await getRecommendVehicleAPI({ section: 3, page, limit: 4 })
+
+      if (res.code && res.data && res.data.list && res.data.list.length > 0) {
+        // 找到数据，处理并返回
+        const processedData = res.data.list.map(item => ({
+          ...item,
+          front_photo: item.front_photo || DEFAULT_COVER_IMG,
+          // 确保价格为数字类型
+          price: Number(item.price) || 0,
+          market_price: Number(item.market_price) || 0
+        }))
+
+        // 最多显示4个
+        featuredScooters.value = processedData.slice(0, 4)
+        hasData = true
+      } else if (res.code && res.data && res.data.total === 0) {
+        // 确认没有数据，停止查询
+        break
+      } else {
+        // 当前页没有数据，查询下一页
+        page++
+      }
+    }
+
+    if (!hasData) {
+      featuredScooters.value = []
     }
   } catch (error) {
     console.error('加载精品推荐数据失败:', error)
+    featuredScooters.value = []
   }
 }
 
@@ -125,4 +147,4 @@ onMounted(() => {
 image {
   display: block;
 }
-</style>
\ No newline at end of file
+</style>

 <!--
  * @Date: 2025-06-28 10:33:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-07-15 15:58:51
+ * @LastEditTime: 2025-07-16 09:25:38
  * @FilePath: /jgdl/src/pages/index/index.vue
  * @Description: 捡个电驴首页
 -->
@@ -238,6 +238,9 @@ onMounted(async () => {
   const res1 = await getRecommendVehicleAPI({ section: 1 })
   if (res1.code) {
     bannerImages.value = res1.data.list.map(item => item.front_photo);
+    if (!bannerImages.value.length) {
+      bannerImages.value = [DEFAULT_COVER_IMG]
+    }
   }
   // 获取最新上架
   const res3 = await getVehicleListAPI({ page: 0, limit: 5 })