使用Bean Shell后处理器提取JSON响应 [英] Extracting JSON Response using Bean Shell Postprocessor

问题描述

我正在尝试使用Beanshell后处理器提取JSON数组的一个变量的值，但在日志中没有任何响应

I am trying to extract the value of one variable of a JSON array using Beanshell postprocessor but I am not getting any response in log

我的JSON有点像:

"store":
:   [
:   :   {
:   :   :   "storeId":12345,
:   :   :   "storeName":"ABC",
:   :   :   "storeAddress":"DEFGHIJKL",
:   :   :   "storeMinOrderAmount":100,
:   :   :   "mobile":"[phone]",
:   :   :   "mobileSecondary":null,
:   :   :   "city":"Somewhere",
:   :   :   "pincode":123456,
:   :   :   "country":"India",
:   :   :   "email":"[e-mail]",
:   :   :   "pickup":true,
:   :   :   "delivery":false,
:   :   :   "storeSplashPath":null,
:   :   :   "storeSplashType":null,
:   :   :   "distance":"0.10"
:   :   },

我的Beanshell后处理器是:

And my Beanshell Post Processor is:

import org.apache.commons.lang3.StringUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import com.eclipsesource.json.*;

print("*******************");

//Get Store total count
int totalStoreNumber = StringUtils.countMatches(new String(data), "storeId");
print("Total Number of Stores are: " + totalStoreNumber);

if (totalStoreNumber > 0) {
 //Check for Fulfilment type is "Pickup"
String jsonString = prev.getResponseDataAsString();
JsonObject store = JsonObject.readFrom(jsonString);
JsonArray store = store.get("store").asArray();
String pickup = store.get(1).asObject().get("pickup").asString();
vars.put("fulfilmentType_BSH", pickup);
print("Is Pickup allowed: " + pickup);
}
else {
 print("No Stores Nearby");
}

我不知道我要去哪里.我已经阅读了相关的查询，但是无法正确执行此操作. 有想法吗?

I don't know where I am going wrong. I had read the related queries but couldn't get this right. Any Idea?

推荐答案

首先，为什么不使用 JSON路径后处理程序吗?您可以使用单个简单的 JSON Path 表达式获得完全相同的结果，例如:

First of all, why don't you use JSON Path PostProcessor for it? You can get absolutely the same using single simple JSON Path expression like:

$.store[0].pickup

---

如果出于任何原因您仍然需要在Beanshell中进行操作，我有一些想法:

---

If for any reason you still need to do it in Beanshell I have some ideas:

1. 这绝对是错误.您无法在Beanshell脚本中声明两个具有相同名称的变量

1. This is definitely the error. You cannot declare 2 variables with the same name in Beanshell script

JsonObject store = JsonObject.readFrom(jsonString);
JsonArray store = store.get("store").asArray(); 
//        ^^^^^  ka-boom!

可能是问题. IndexOutOfBoundsException 如果只有1家商店响应.在Beanshell集合中，基数从零开始，第一个元素的索引为0.

Possible problem. IndexOutOfBoundsException if there will be only 1 store in the response. In Beanshell collections are zero-based, 1st element will have index of 0.

String pickup = store.get(1).asObject().get("pickup").asString();
//                        ^ ka-boom! 

另一个可能的问题是您的进口商品，以防万一

Another possible problem could be regarding your imports, just in case

import org.json.JSONArray;
import org.json.JSONObject;
import com.eclipsesource.json.*;

您是否已将相关的jar添加到 JMeter Classpath 中，之后重启JMeter吗?您确定使用正确的方法吗?

Have you added the relevant jars to JMeter Classpath and have you restarted JMeter after this? Are you sure you're using methods correctly?

这是您使用JMeter 3.0随附的 json-smart 重新实现的代码(您不需要其他罐子

Here is your code re-implemented using json-smart which comes with JMeter 3.0 (you don't need any other jars)

import net.minidev.json.JSONArray;
import net.minidev.json.JSONObject;
import net.minidev.json.parser.JSONParser;
import org.apache.commons.lang.StringUtils;

//Get Store total count
int totalStoreNumber = StringUtils.countMatches(new String(data), "storeId");
log.info("Total Number of Stores are: " + totalStoreNumber);

if (totalStoreNumber > 0) {
    //Check for Fulfilment type is "Pickup"
    String jsonString = new String(data);
    JSONParser parser = new JSONParser(JSONParser.MODE_JSON_SIMPLE);
    JSONObject store = (JSONObject) parser.parse(data);
    JSONArray storeArray = (JSONArray) store.get("store");
    String pickup = ((JSONObject) storeArray.get(0)).getAsString("pickup");
    vars.put("fulfilmentType_BSH", pickup);
    log.info("Is Pickup allowed: " + pickup);
} else {
    log.info("No Stores Nearby");
}

及其工作证据

请参见如何使用BeanShell:JMeter最喜欢的内置组件指南，以获取有关在JMeter测试中使用Beanshell脚本的更多信息

See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information on using Beanshell scripting in your JMeter tests

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