java扩展jmeter依赖

前置条件

创建一个maven项目，引入依赖

<dependency><groupId>org.apache.jmeter</groupId><artifactId>ApacheJMeter_core</artifactId><version>3.2</version>
</dependency>
<dependency><groupId>org.apache.jmeter</groupId><artifactId>ApacheJMeter_java</artifactId><version>3.2</version>
</dependency>// 用于函数助手开发
<dependency><groupId>org.apache.jmeter</groupId><artifactId>ApacheJMeter_functions</artifactId><version>3.2</version>
</dependency>

若引入依赖失败，找到仓库内的文件，删除，reimport一下依赖即可

默认路径 /Users/lvxueqing/.m2/repository/org/apache/jmeter

一、Java请求开发

方式1 继承AbstractJavaSamplerClient类

public class First extends AbstractJavaSamplerClient {public SampleResult runTest(JavaSamplerContext javaSamplerContext) {System.out.println(" 我的demo！！！！");return null;}
}

使用方式：

1）到idea终端打包 mvn clean package

2）将打包后生成的文件，放到jmeter的/apache-jmeter-5.2.1/lib/ext路径下

3）重启jemter

4）添加线程组，添加java请求，可看到刚刚写好的类

5）点击运行日志打印了

方式2 实现JavaSamplerClient接口

public class Second implements JavaSamplerClient {private static final String URLNAME="URL"; //jmeter属性中显示的变量名称private static final String DEFAULTURL="http://www.baidu.com"; //jmeter属性中显示的变量值private String resultData; // 存储响应数据，将结果放到查看结果树里/*** 决定了jmeter中要展示哪些属性， 第一个运行*/public Arguments getDefaultParameters() {System.out.println("getDefaultParameters  run!! ");Arguments arguments = new  Arguments();arguments.addArgument(URLNAME,DEFAULTURL);return arguments;}//接收用户输入的URLprivate String inputUrl ;/*** 初始化的方法*/public void setupTest(JavaSamplerContext javaSamplerContext) {System.out.println("setupTest  run!! ");inputUrl = javaSamplerContext.getParameter(URLNAME,DEFAULTURL);System.out.println("用户输入的url地址是  " + inputUrl);}/*** 具体功能逻辑的方法*/public SampleResult runTest(JavaSamplerContext javaSamplerContext) {System.out.println("runTest  run!! ");SampleResult sampleResult = new SampleResult();StringBuilder sb = new StringBuilder();try {URL url = new URL(inputUrl);URLConnection conn = url.openConnection();byte[] buffer = new byte[1024];int len;sampleResult.sampleStart(); // 标记事务开始InputStream in = conn.getInputStream();while ((len=in.read(buffer)) != -1){resultData = new String(buffer,"UTF-8");sb.append(resultData);}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}//        resultData = "这就是响应结果";resultData = sb.toString();sampleResult.setSuccessful(true); // 告诉查看结果树 请求是否成功sampleResult.setSampleLabel("自定义java访问请求");sampleResult.setResponseData(resultData,"UTF-8");sampleResult.setDataType(SampleResult.TEXT);return sampleResult;}/*** 做一些收尾工作的方法*/public void teardownTest(JavaSamplerContext javaSamplerContext) {System.out.println("teardownTest  run!! ");}}

结果展示

二、函数助手开发

注意：函数相关类要放到functions目录下

public class Plus extends AbstractFunction {private Object[] values;private CompoundVariable first,second; // 存储第一个和第二个参数/*** 执行方法*/public String execute(SampleResult sampleResult, Sampler sampler) throws InvalidVariableException {System.out.println(" execute  run ");first = (CompoundVariable) values[0];System.out.println("第一个参数是 " + first);second = (CompoundVariable) values[1];System.out.println("第二个参数是 " + second);int count = new Integer(first.execute().trim()) + new Integer(second.execute().trim()) ;System.out.println("和 " + count);return String.valueOf(count);}/*** 设置参数， 接收用户传递的参数*/public void setParameters(Collection<CompoundVariable> collection) throws InvalidVariableException {System.out.println(" setParameters  run ");checkParameterCount(collection,2);values = collection.toArray();}/*** 功能名称*/public String getReferenceKey() {System.out.println(" getReferenceKey  run ");return "__MyDemoPlus";}/*** 功能描述 参数描述*/public List<String> getArgumentDesc() {System.out.println(" getArgumentDesc  run ");List desc = new ArrayList();desc.add("第一个数");desc.add("第二个数");return desc;}
}

使用方式：

1）到idea终端打包 mvn clean package

2) 将打包后生成的jar文件，放到jmeter的/apache-jmeter-5.2.1/lib/ext路径下

3）重启jemter

结果展示