【Jmeter测试】如何使用BeanShell断言判断请求返回的Json相应结果

 

• 脚本结构
  ​
  上图中，queryMaterialApiDTOListByPkIds是返回Json格式响应结果的请求，然后添加BeanShell断言详细判断Json结果中的值是否正确。

• Json格式的相应结果

  

   {
       "code": 0,
       "msg": "success",
       "success": true,
       "data": [
           {
               "materialCode": "6902265111719",
               "materialName": "海天蒸鱼豉油450ml*12",
               "materialType": 1,
               "sixNineCode": "6902265111719",
               "expirationDate": 720,
               "packingSpecification": 12,
               "basicUnit": "BOX",
               "minSaleUnit": "BOT",
               "importFlag": 1,
               "transportFlag": 0,
               "sourceSystem": 10,
               "createrName": "MD自动转换物料",
               "updaterName": "loms",
               "pkId": "6902265111719",
               "mdMaterialCode": "6902265111719",
               "verifyStatus": 2,
               "creater": -2,
               "createTime": 1538984955619,
               "updater": -2,
               "updateTime": 1538984955619,
               "useStatus": 1
           },
           {
               "materialCode": "6902265113003",
               "materialName": "海天特辣黄豆酱230g*15",
               "materialType": 1,
               "sixNineCode": "6902265113003",
               "expirationDate": 720,
               "packingSpecification": 15,
               "basicUnit": "BOX",
               "minSaleUnit": "BOT",
               "importFlag": 1,
               "transportFlag": 0,
               "sourceSystem": 10,
               "createrName": "MD自动转换物料",
               "updaterName": "loms",
               "pkId": "6902265113003",
               "mdMaterialCode": "6902265113003",
               "verifyStatus": 2,
               "creater": -2,
               "createTime": 1538984956726,
               "updater": -2,
               "updateTime": 1538984956726,
               "useStatus": 1
           }
       ],
       "EnumVal": {}
   }

• BeanShell脚本

   import org.json.JSONObject;
   import org.json.JSONArray;
  
   String result = prev.getResponseDataAsString();
  
   JSONObject response = new JSONObject(result);
   JSONArray array = response.getJSONArray("data");
  
   if (array.length() != 2) {
     Failure=true ;
     FailureMessage ="array size < 2";
     return;
   }
  
   int count = 0;
   for (int i = 0; i < 2; i++) {
     JSONObject temp = array.getJSONObject(i);
     String pkId = temp.get("pkId").toString();
     if (pkId.equals("6902265111719")) {
  
         if (!temp.get("materialCode").equals("6902265111719")) {
             Failure=true ;
             FailureMessage ="pkId: " + pkId + ", material code error, code = " + temp.get("materialCode");
             return;
         }
  
         if (!temp.get("materialName").equals("海天蒸鱼豉油450ml*12")) {
             Failure=true ;
             FailureMessage ="pkId: " + pkId + ", material name error, name = " + temp.get("materialName");
             return;
         }
         count++;
     }
  
     if (pkId.equals("6902265113003")) {
         if (!temp.get("materialCode").equals("6902265113003")) {
             Failure=true ;
             FailureMessage ="pkId: " + pkId + ", material code error, code = " + temp.get("materialCode");
             return;
         }
  
         if (!temp.get("materialName").equals("海天特辣黄豆酱230g*15")) {
             Failure=true ;
             FailureMessage ="pkId: " + pkId + ", material name error, name = " + temp.get("materialName");
             return;
         }
         count++;
     }
   }
  
   if (count != 2) {
     log.info("count != 2");
     Failure=true ;
     FailureMessage ="pkId not in range";
     return;
   }
  
   log.info(array.toString())

  1、先通过prev.getResponseDataAsString获取到响应的返回结果，然后通过org.json.JSONObject和org.json.JSONArray两个类来解析返回的相应结果。
  2、解析出想要的Json对象后，在for循环中对Json对象中每一个需要检测的值和期望的进行比对，如果不正确，Failure设置为true，FailureMessage设置具体的错误信息。
  3、for循环中有可能一开始的pkId取值就和期望不一致，所以这时需要计算下遍历的计数count，如果计数和期望的不一致，说明响应结果和期望结果的数量不一致。