调整删除逻辑

src/main/java/cn/chjyj/szwh/service/impl/GoodsServiceImpl.java

@@ -775,8 +775,9 @@ public class GoodsServiceImpl implements GoodsService {
     @Override
     public Map<String,Object> delShoppingCar(String userIsli, String goodsIsli) {
         Map retmap =new HashMap();
-        JSONObject retjson =SzCarUtils.delCart(userIsli,goodsIsli);
-        if(retjson==retjson){
+        // 删除元素
+        int ret =SzCarUtils.delCart(userIsli,goodsIsli);
+        if(ret==-1){
             retmap.put("code",400);
             retmap.put("msg","购物车中没有此标的");
             return retmap;

src/main/java/cn/chjyj/szwh/utils/SzCarUtils.java

@@ -50,19 +50,19 @@ public class SzCarUtils {
      * @param goodsIsli 删除的商品编号
      * @return
      */
-    public static JSONObject delCart(String userIsli, String goodsIsli) {
+    public static int delCart(String userIsli, String goodsIsli) {
         // get shopping car from redis
         String carkey = "car_" + userIsli;
         Object shopCar = RedisUtil.get(carkey);
         if (shopCar == null) {
-            return null;
+            return -1;
         }
         List ncarlist = new ArrayList();
         //find jsonarray
         JSONObject shopCarJson = JSONObject.parseObject(shopCar.toString());
         JSONArray jsonArray = shopCarJson.getJSONArray("data");
         if (jsonArray == null) {
-            return null;
+            return -1;
         }
         // loop and check
         for (int x = 0; x < jsonArray.size(); x++) {
@@ -81,7 +81,7 @@ public class SzCarUtils {
         // 2 add new
         RedisUtil.set(carkey, outjson.toJSONString());
         // 3 retun result
-        return outjson;
+        return 1;
     }
 
     /**