Question

我们的要求是我们需要将Json响应转换为Java对象。我可以在Jmeter知道怎么做吗？我们可以使用Beanshell吗？

以下是我的样本回复

{"items":[],"indicators":
[{"name":"location","type":"country","title":"Country"},{"name":"total","type":"number","title":"Entities Total"}]

我们能够存储到Csv或json格式，但如何将其转换为Java对象？能帮助我们吗？

Answer 1

您可以像这样Extracting JSON Response using Bean Shell Postprocessor

使用beanshell

beanshell将帮助您获取JSONObject，并且您可以将JSONObject发送到pojo。 How to efficiently map a org.json.JSONObject to a POJO?

Answer 2

使用JMeter附带的JSON智能库。有关示例代码，请参阅以下答案或上一个答案给出的答案。

然后，您可以使用vars.putObject和vars.getObject来存储和检索对象，并在采样器之间传递它们。

https://stackoverflow.com/a/42859821/7332423

Jmeter测试计划test.jmx

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="2.9" jmeter="3.0 r1743807">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan" enabled="true">
      <stringProp name="TestPlan.comments"></stringProp>
      <boolProp name="TestPlan.functional_mode">false</boolProp>
      <boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
      <stringProp name="TestPlan.user_define_classpath"></stringProp>
    </TestPlan>
    <hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
          <boolProp name="LoopController.continue_forever">false</boolProp>
          <stringProp name="LoopController.loops">1</stringProp>
        </elementProp>
        <stringProp name="ThreadGroup.num_threads">1</stringProp>
        <stringProp name="ThreadGroup.ramp_time">1</stringProp>
        <longProp name="ThreadGroup.start_time">1490275382000</longProp>
        <longProp name="ThreadGroup.end_time">1490275382000</longProp>
        <boolProp name="ThreadGroup.scheduler">false</boolProp>
        <stringProp name="ThreadGroup.duration"></stringProp>
        <stringProp name="ThreadGroup.delay"></stringProp>
      </ThreadGroup>
      <hashTree>
        <DebugSampler guiclass="TestBeanGUI" testclass="DebugSampler" testname="Debug Sampler" enabled="true">
          <boolProp name="displayJMeterProperties">false</boolProp>
          <boolProp name="displayJMeterVariables">true</boolProp>
          <boolProp name="displaySystemProperties">false</boolProp>
        </DebugSampler>
        <hashTree>
          <BeanShellPreProcessor guiclass="TestBeanGUI" testclass="BeanShellPreProcessor" testname="BeanShell PreProcessor" enabled="true">
            <stringProp name="filename"></stringProp>
            <stringProp name="parameters"></stringProp>
            <boolProp name="resetInterpreter">false</boolProp>
            <stringProp name="script">import org.apache.commons.lang3.StringUtils;
import net.minidev.json.parser.JSONParser;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONArray;

String sInputString =  "return {\"items\":[{\"STANDARDRATEFORMAT\":\"0.00\",\"ASSIGNED_HRS\":0,\"RESOURCE_NAME\":\"#Buddhika \",\"COST\":\"0.00\",\"PERCENTASSIGNED\":\"100.00\",\"EMAIL\":\"Buddhika75@mspblank.com\",\"AVAILABLEFROM\":\"10-May-2011\",\"ALLOCATED_HRS\":\"1872.00\",\"RESOURCE_ID\":36197221,\"AVAILABLETO\":\"31-Mar-2012\",\"calendar\":{\"exceptions\":{},\"weekDayHours\":{}}}]}";

//String sInputString = prev.getResponseDataAsString();

try {
     // Use StringUtils to cut the string between the two
    String sCutString = StringUtils.substringBetween(sInputString, "return {\"items", "]}");
    String sFinalString = "{\"items" + sCutString + "]}";
    log.info("sFinalString=" + sFinalString);

    // Use JSONParser to parse the JSON
    JSONParser parser = new JSONParser(JSONParser.ACCEPT_NON_QUOTE|JSONParser.ACCEPT_SIMPLE_QUOTE); 
    JSONObject rootObject = (JSONObject) parser.parse(sFinalString);
    //JSONObject rootObject = (JSONObject) parser.parse(prev.getResponseDataAsString());

    JSONArray jResourceArray = (JSONArray) rootObject.get("items");

    for (int i=0; i &lt; jResourceArray.size(); i++) {
        log.info(jResourceArray.get(i).toString());
        // You can access individual elements using this
        log.info("RESOURCE_ID=" + jResourceArray.get(i).get("RESOURCE_ID"));
    }


}
catch ( Exception ex) {
    log.info("Exception.." + ex);
}</stringProp>
          </BeanShellPreProcessor>
          <hashTree/>
        </hashTree>
      </hashTree>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

Answer 3

您可以使用BeanShell处理此JSON。您可以使用作为JMeter 3.3一部分的json-smart（我不知道以前的版本）。这里有一些示例代码来处理你的json并从数组“indicators”的第一个元素中获取“type”：

import net.minidev.json.parser.JSONParser;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONArray;

JSONParser p = new JSONParser(JSONParser.MODE_PERMISSIVE);

String jsonString = prev.getResponseDataAsString();
JSONObject jsonObj = (JSONObject) p.parse(jsonString);
JSONArray arr = (JSONArray) jsonObj.get("indicators");

JSONObject indicator = (JSONObject) arr.get(0);
String typeString = (String) indicator.get("type");

log.info("TYPE:" + typeString);

vars.put("TYPEVAR", typeString);

顺便说一句，你写的json缺少最后的'}'。

如何在Jmeter中将Json转换为Java对象

3 个答案: