Jmeter custom Java development request

First, the purpose of this experiment

IDEA new maven project using java to develop custom jmeter request.

The development of the code used, will Baidu cloud to others.

Second, this experimental environment

 

Idea	2017.02
Jmeter	5.1.1

Third, the new maven project

pom.xml file import dependent.

 

 

 <dependencies>

    <!-- https://mvnrepository.com/artifact/org.apache.jmeter/ApacheJMeter_functions --> <dependency> <groupId>org.apache.jmeter</groupId> <artifactId>ApacheJMeter_functions</artifactId> <version>5.1.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.jmeter/ApacheJMeter_core --> <dependency> <groupId>org.apache.jmeter</groupId> <artifactId>ApacheJMeter_core</artifactId> <version>5.1.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.jmeter/ApacheJMeter_java --> <dependency> <groupId>org.apache.jmeter</groupId> <artifactId>ApacheJMeter_java</artifactId> <version>5.1.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient --> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.5</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.47</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> </dependencies>

 

Fourth, coding

4.1, more than one monitor two interfaces demo of realized, for example, to write custom requests fulfill the request of

Open jmeter, add javarequest shown below:

By default only two class.

4.2, the new class interface to implement JavaSamplerClient

 

 

package com.jmeter.functions;
import org.apache.jmeter.config.Arguments; import org.apache.jmeter.protocol.java.sampler.JavaSamplerClient; import org.apache.jmeter.protocol.java.sampler.JavaSamplerContext; import org.apache.jmeter.samplers.SampleResult; public class CustemRequest implements JavaSamplerClient { @Override public void setupTest(JavaSamplerContext javaSamplerContext) { } @Override public SampleResult runTest(JavaSamplerContext javaSamplerContext) { return null; } @Override public void teardownTest(JavaSamplerContext javaSamplerContext) { } @Override public Arguments getDefaultParameters() { return null; } }

 

我们可以看到，具体会实现4个方法。

4.3、实现具体方法

启动上一节实现的应用。localhost:8086

具体实现代码如下：

 

 

package com.jmeter.functions;

import com.alibaba.fastjson.JSONObject; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.utils.URIBuilder; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicHeader; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.apache.jmeter.config.Arguments; import org.apache.jmeter.protocol.java.sampler.JavaSamplerClient; import org.apache.jmeter.protocol.java.sampler.JavaSamplerContext; import org.apache.jmeter.samplers.SampleResult; import java.net.URISyntaxException; import java.util.LinkedList; import java.util.List; import java.util.Random; public class CustemRequest implements JavaSamplerClient { //定义显示请求地址的变量名 private static final String REQUEST_RUL = "URL"; //定义默认请求的URL地址 private static final String DEFAULT_URL = "http://localhost:8086/user/get"; //用户输入的URL private String inputUrl; //用来保存http请求的响应结果，并把结果放到jmeter的查看结果树里面 private String ResponseResult; //返回成功的状态码 private static final int SUCCESS_CODE = 200; //以下方法，打印输出的目的就是检验此4个方法的执行顺序，大家执行的时候可以后台结果详细查看 @Override public void setupTest(JavaSamplerContext javaSamplerContext) { System.out.println("******setupTest******"); inputUrl = javaSamplerContext.getParameter(REQUEST_RUL,DEFAULT_URL); System.out.println("用户默认输出的URL地址------>:" + inputUrl); } /** * 真正执行的方法 * @param javaSamplerContext * @return */ @Override public SampleResult runTest(JavaSamplerContext javaSamplerContext) { SampleResult sampleResult = new SampleResult(); Object[] param = new Object[]{"id"}; Object[] value = new Object[]{26}; List<NameValuePair> nameValuePairs = getParam(param, value); /** * 标记一个事务的开始 */ sampleResult.sampleStart(); try { ResponseResult = (String) sentGetRequest(inputUrl, nameValuePairs); } catch (Exception e) { e.printStackTrace(); } sampleResult.setSampleLabel("自定义本地的请求访问"); sampleResult.setSuccessful(true); //告诉查看结果树是否成功 sampleResult.setResponseData(ResponseResult,"utf-8"); sampleResult.setDataType(SampleResult.TEXT); return sampleResult; } @Override public void teardownTest(JavaSamplerContext javaSamplerContext) { } @Override public Arguments getDefaultParameters() { //在jmeter显示属性 Arguments arguments = new Arguments(); arguments.addArgument(REQUEST_RUL,DEFAULT_URL); return arguments; } //自定义实现get请求 /** * 发送get请求 * @param url 请求URL地址 * @param nameValuePairs 请求参数 * @return JSON或者字符串 * @throws Exception */ public static Object sentGetRequest(String url, List<NameValuePair> nameValuePairs) throws Exception{ CloseableHttpClient client = null; CloseableHttpResponse response = null; try { /** * 新建HttpClient对象 */ client = HttpClients.createDefault(); /** * 新建URIBuilder */ URIBuilder uriBuilder = new URIBuilder(url); /** * 设置参数 */ uriBuilder.addParameters(nameValuePairs); /** * 创建HttpGet */ HttpGet httpGet = new HttpGet(uriBuilder.build()); /** * 设置请求头部编码 */ httpGet.setHeader(new BasicHeader("content-Type","application/x-www-form-urlencoded; charset=utf-8")); /** * 请求服务 */ response = client.execute(httpGet); int statusCode = response.getStatusLine().getStatusCode(); if (SUCCESS_CODE == statusCode){ /** * 获取返回对象 */ HttpEntity entity = response.getEntity(); /** * 通过EntityUtils获取返回内容 */ String result = EntityUtils.toString(entity,"utf-8"); return result; }else { System.out.println("请求失败！！！！！！"); } } catch (URISyntaxException e) { e.printStackTrace(); }finally { response.close(); client.close(); } return null; } private static List<NameValuePair> getParam(Object[] params,Object[] values){ /** * 参数简单校验合法性 */ boolean flag = params.length>0 && values.length>0 && params.length == values.length; if (flag){ List<NameValuePair> nameValuePairs = new LinkedList<>(); for (int i = 0 ; i<params.length; i++){ nameValuePairs.add(new BasicNameValuePair(params[i].toString(),values[i].toString())); } return nameValuePairs; }else { System.out.println("请求参数为空且参数长度不一致"); } return null; } public static void main(String[] args) { Object[] param = new Object[]{"id"}; Object[] value = new Object[]{26}; final String DEFAULT_URL = "http://localhost:8086/user/get"; List<NameValuePair> nameValuePairs = getParam(param, value); try { String o = (String) sentGetRequest(DEFAULT_URL, nameValuePairs); System.out.println(o); } catch (Exception e) { e.printStackTrace(); } } } 

 

4.4, maven jar full package

• Put jmeter G: \ apache-jmeter-5.1.1 \ lib \ ext directory
• Reopen jmeter

 

V. Summary

At this point the request of the request of our custom java already been developed.

There are two problems? Later it will come true.

1. How to get id parameter of the request in your code?
2. How to write a post request in the code?