fix: 添加判断cateId2Relevance是否为空

boyang
1 parent 3989db1b
Showing 3 changed files with 16 additions and 15 deletions
shop/src/main/java/com/canrd/shop/service/impl/ProductServiceImpl.java
shop/src/main/resources/application-local.yml
shop/src/main/resources/application.yml
@@ -178,19 +178,20 @@ public class ProductServiceImpl extends ServiceImpl&lt;ProductMapper, ProductDO&gt; im
         TreeMap<String, Integer> cateId2Relevance = new TreeMap<>(relatedCateId2Relevance);
         StringJoiner orderByJoiner = new StringJoiner(" when "," order by case pc.id when "," else 0 end ");
         cateId2Relevance.forEach((k,v)->orderByJoiner.add("'"+k+"'"+" then "+v));
-        QueryWrapper<ProductDO> objectQueryWrapper = new QueryWrapper<ProductDO>()
-                .in("pc.id", cateId2Relevance.keySet())
-                .select("distinct p.id","pc.id")
-                .last(orderByJoiner.toString());
-        List<ProductDO> relatedProducts = this
-                .list(objectQueryWrapper);
-        List<String> relatedProductIds = relatedProducts.stream()
-                .map(ProductDO::getId)
-                .distinct()
-                .limit(10)
-                .collect(Collectors.toList());
-        productVO.setRelatedProductIds(relatedProductIds);
-
+        if(CollUtil.isNotEmpty(cateId2Relevance)) {
+            QueryWrapper<ProductDO> objectQueryWrapper = new QueryWrapper<ProductDO>()
+                    .in("pc.id", cateId2Relevance.keySet())
+                    .select("distinct p.id", "pc.id")
+                    .last(orderByJoiner.toString());
+            List<ProductDO> relatedProducts = this
+                    .list(objectQueryWrapper);
+            List<String> relatedProductIds = relatedProducts.stream()
+                    .map(ProductDO::getId)
+                    .distinct()
+                    .limit(10)
+                    .collect(Collectors.toList());
+            productVO.setRelatedProductIds(relatedProductIds);
+        }
         productVO.setPriceShow(productPriceShow);
  
  
@@ -59,7 +59,7 @@ spring:
     testOnReturn: true
     password: 123456
     time-between-eviction-runs-millis: 1000
-    url: jdbc:mysql://127.0.0.1:3306/canrd_overseas?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=Asia/Shanghai&useSSL=false&autoReconnect=true&failOverReadOnly=false&maxReconnects=10&allowMultiQueries=true&useAffectedRows=true&autoReconnectForPools=true
+    url: jdbc:mysql://192.168.31.242:13306/canrd_overseas?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=Asia/Shanghai&useSSL=false&autoReconnect=true&failOverReadOnly=false&maxReconnects=10&allowMultiQueries=true&useAffectedRows=true&autoReconnectForPools=true
     username: root
  
  
@@ -3,7 +3,7 @@ server:
  
 spring:
   profiles:
-    active: test
+    active: prod
   mvc:
     throw-exception-if-no-handler-found: true
   resources: