调整购物车逻辑

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

@@ -623,55 +623,41 @@ public class GoodsServiceImpl implements GoodsService {
         //shop car infomation
         String shopRedisKey = "car_" + userIsli;
         JSONObject carjson = new JSONObject();
-        // 购物车列表
-        List carList = new ArrayList();
         // car item
         Map cimap = new HashMap();
-        // {"user_isli":"ssss",data:["sss","sss","sss"]}
-        //object
         Object shopCar = RedisUtil.get(shopRedisKey);
 
         // 购物车中有记录的
         if (shopCar != null) {
+            carjson = JSONObject.parseObject(shopCar.toString());
+            // 提取节点转为jsonarray
             JSONArray jsonArray = carjson.getJSONArray("data");
-            if (jsonArray == null) { //为空需要添新的元素
-                cimap.put("goods_isli", goodsIsli);
-                cimap.put("use_years", userYears);
-                carList.add(cimap);
-            } else {
-                //抽取出goods_isli
+            if (jsonArray != null) { //为空需要添新的元素
                 List cgilist = new ArrayList();
                 for (int x = 0; x < jsonArray.size(); x++) {
                     JSONObject tmpjson = (JSONObject) jsonArray.get(x);
+                    // goods_isli insert into list for checking has exist
                     cgilist.add(tmpjson.getString("goods_isli"));
-                }
-                // goods_isli has been exist in car?
-                if(cgilist.contains(goodsIsli)){
-                    retmap.put("code", 400);
-                    retmap.put("msg", "该标的已添加到购物车");
-                }else {
-                    cimap.put("goods_isli", goodsIsli);
-                    cimap.put("use_years", userYears);
-                    carList.add(cimap);
-                    JSONObject retjson =SzCarUtils.addCart(shopRedisKey,userIsli,cimap);
+                    // goods_isli has been exist in car?
+                    if(cgilist.contains(goodsIsli)){
+                        retmap.put("code", 400);
+                        retmap.put("msg", "该标的已添加到购物车");
+                        return retmap;
+                    }
                 }
             }
-            // 添加到购物车json
-            //carjson.put("user_isli",userIsli);
-            //carjson.put("data",carList);
-            RedisUtil.set(shopRedisKey, carjson.toJSONString());
+            //
         } else {
             //first biuld car item
-            cimap.put("user_isli",goodsIsli);
+            cimap.put("goods_isli",goodsIsli);
             cimap.put("use_years",userYears);
-            // second add to carlist
-            carList.add(cimap);
-            //third add new wraper
-            carjson.put("user_isli",userIsli);
-            carjson.put("data",carList);
-            RedisUtil.set(shopRedisKey, carjson.toJSONString());
         }
         //购物车添加成功
+        JSONObject retjson =SzCarUtils.addCart(shopRedisKey,userIsli,cimap);
+        carjson.put("user_isli",userIsli);
+        carjson.put("data",retjson);
+        RedisUtil.set(shopRedisKey, carjson.toJSONString());
+
         retmap.put("code", 200);
         retmap.put("msg", "成功");
         return retmap;

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

@@ -18,22 +18,23 @@ public class SzCarUtils {
      * @return
      */
     public static JSONObject addCart(String carkey,String userIsli, Map ugmap){
+        List carItem = new ArrayList();
         // get shopping car from redis
         Object shopCar = RedisUtil.get(carkey);
-        JSONObject shopCarJson = JSONObject.parseObject(shopCar.toString());
-        JSONArray jsonArray = shopCarJson.getJSONArray("data");
-        // good list
-        List<JSONObject> carlist =new ArrayList<>();
-        if(jsonArray.size()>0){
-            for (int i=0;i<jsonArray.size();i++){
-                carlist.add(jsonArray.getJSONObject(i));
+        if(shopCar!=null) {
+            JSONObject shopCarJson = JSONObject.parseObject(shopCar.toString());
+            JSONArray jsonArray = shopCarJson.getJSONArray("data");
+            for(int x=0;x<jsonArray.size();x++){
+                carItem.add(jsonArray.getJSONObject(x));
             }
+            // 在jsonArray中集训增加
+            //jsonArray.add(new JSONObject(ugmap));
         }else{
-            carlist.add(new JSONObject(ugmap));
+            carItem.add(new JSONObject(ugmap));
         }
         JSONObject outjson = new JSONObject();
         outjson.put("user_isli",userIsli);
-        outjson.put("data",carlist);
+        outjson.put("data",carItem);
         return outjson;
     }
 }