Jmeter二次开发

Jmater函数扩展的步骤
1、 导入Jmeter源码，或使用maven项目，引入依赖的jar包

2、 继承AbstractFunction，实现自定义Function

3、 继承JMeterTestCase，对自定义的函数进行单元测试

4、 对自定义函数进行编译打包，并放在lib\ext下

5、 Jmeter ->选项 ->函数助手对话框，选择已开发的函数调用

自定义Function
继上一篇文章已经介绍如何导入Jmeter源码，这里就不做详细介绍，此次主要引用自动生成手机号码为例

import java.util.Collection;

import java.util.LinkedList;

import java.util.List;

import org.apache.jmeter.engine.util.CompoundVariable;

import org.apache.jmeter.samplers.SampleResult;

import org.apache.jmeter.samplers.Sampler;

import org.apache.jmeter.threads.JMeterVariables;

public class MobileGenerator extends AbstractFunction {

private static final List<String> desc = new LinkedList<String>();

//定义function名称

private static final String KEY = "__MobileGenerator";

private static String[] telFirst = "134,135,136,137,138,139,150,151,152,157,158,159,130,131,132,155,156,133,153"

.split(",");

//自定义function的描述

static {

desc.add("Name of variable in which to store the result (optional)");

}

private CompoundVariable varName;

//执行部分

public String execute(SampleResult previousResult, Sampler currentSampler) throws InvalidVariableException {

int index = getNum(0, telFirst.length - 1);

String first = telFirst[index];

String second = String.valueOf(getNum(1, 888) + 10000).substring(1);

String thrid = String.valueOf(getNum(1, 9100) + 10000).substring(1);

String mobile = first + second + thrid;

if (varName != null) {

JMeterVariables vars = getVariables();

final String varTrim = varName.execute().trim();

if (vars != null && varTrim.length() > 0) {// vars will be null

// on TestPlan

vars.put(varTrim, mobile);

}

}

return mobile;

}

//设置参数值

public void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {

//校验参数个数  checkParameterCount(Collection<CompoundVariable> parameters, int min, int max)

checkParameterCount(parameters, 0, 1);

//将值存入变量中

Object[] values = parameters.toArray();

if (values.length > 0) {

varName = (CompoundVariable) values[0];

} else {

varName = null;

}

}

@Override

public String getReferenceKey() {

return KEY;

}

@Override

public List<String> getArgumentDesc() {

return desc;

}

private static int getNum(int start, int end) {

return (int) (Math.random() * (end - 1));

}

}

对开发的函数进行单元测试
import static org.apache.jmeter.functions.FunctionTestHelper.makeParams;

import java.util.Collection;

import org.apache.jmeter.engine.util.CompoundVariable;

import org.apache.jmeter.junit.JMeterTestCase;

import org.junit.Test;

public class MobileGeneratorTest extends JMeterTestCase {

@Test

public void test() throws Exception {

MobileGenerator mobileGenerator = new MobileGenerator();

Collection<CompoundVariable> params = makeParams("mobile",null,null);

mobileGenerator.setParameters(params);

String string = mobileGenerator.execute();

System.out.println(string);

}

}

编译并打包
   编译并打包到lib\ext目录下，覆盖下之前的ApacheJMeter_functions.jar，重启Jmeter

调用自定义函数

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作者：Jerry最胖
来源：CSDN
原文：https://blog.csdn.net/qq_27791709/article/details/78952054
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