第一步： 创建一个maven项目
这一步：网上很多教程，自行查看
第二步：导入依赖包：
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_core</artifactId>
<version>5.3</version>
</dependency>
<dependency>
<groupId>org.apache.jmeter</groupId>
<artifactId>ApacheJMeter_java</artifactId>
<version>5.3</version>
</dependency>
<build>
<finalName>vapeJmeter</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
注意 包名必须含有 functions ，例如： com.vape.functions
代码：
package com.vape.functions;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.functions.AbstractFunction;
import org.apache.jmeter.functions.InvalidVariableException;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;
import org.apache.jmeter.threads.JMeterVariables;
import org.apache.jmeter.util.JMeterUtils;
/**
*@author created by derrick
*@date 2021年4月19日---上午11:45:40
*@problem
*@answer
*@action
*/
public class MobileFunction extends AbstractFunction {
//function名称
private static final String KEY = "__testMobile";
private static final List<String> desc = new LinkedList<String>();
private static final String[]telFirst = "134,135,136,137,138,139,150,151,152,157,158,159,130,131,132,155,156,133,153".split(",");
//function描述
static{
desc.add(JMeterUtils.getResString("derrick test"));
}
private CompoundVariable varName;
/** 执行部分 */
@Override
public String execute(SampleResult previousResult, Sampler currentSampler) throws InvalidVariableException{
int index =getNum(telFirst.length - 1);
String first = telFirst[index];
String second = String.valueOf(getNum(999) + 10000).substring(1);
String third = String.valueOf(getNum(9990) + 10000).substring(1);
String mobile = first + second + third;
if (varName != null) {
JMeterVariables vars =getVariables();
final String varTrim= varName.execute().trim();
if (vars != null&& varTrim.length() > 0) {
vars.put(varTrim, mobile);
}
}
return mobile;
}
/** 设置参数*/
public void setParameters(Collection<CompoundVariable> parameters)throws InvalidVariableException
{
checkParameterCount(parameters, 0, 1);
Object[] values =parameters.toArray();
if (values.length > 0) {
varName = (CompoundVariable)values[0];
} else {
varName = null;
}
}
@Override
public String getReferenceKey() {
return KEY;
}
public List<String>getArgumentDesc() {
return desc;
}
private static int getNum(int end)
{
return (int)(Math.random()*(end-1));
}
}
然后使用maven打包
最后把生成的jar丢到 \lib\ext 目录下，重启jmeter
