代码参考这个
java 随机生成身份证代码

Java的身份证号码工具类

pom文件添加

 <dependency><groupId>org.apache.jmeter</groupId><artifactId>ApacheJMeter_core</artifactId><version>5.4.1</version></dependency><dependency><groupId>org.apache.jmeter</groupId><artifactId>ApacheJMeter_java</artifactId><version>5.6.2</version></dependency>

创建

import com.saic.ptest.sign.IdCardGenerator;
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 java.util.ArrayList;
import java.util.Collection;
import java.util.List;public class IdCardGeneratorFunction extends AbstractFunction {private static final List<String> desc = new ArrayList();//定义函数参数列表@Overridepublic List<String> getArgumentDesc() {return desc;}//用来接收、处理用户调用函数时所传入的参数值@Overridepublic void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {this.checkParameterCount(parameters, 0, 0);}//函数的执行主体，执行具体的业务逻辑、功能@Overridepublic String execute(SampleResult sampleResult, Sampler sampler)  {IdCardGenerator idCardGenerator = new IdCardGenerator();return idCardGenerator.generate(); //把执行结构返回给用户}//要调用的函数名称@Overridepublic String getReferenceKey() {String key = "__IdCardGenerator";return key ;}
}

打成包，放到jmeter的/lib/ext路径下

效果演示

参考的是/lib/ext路径下的
ApacheJMeter_functions.jar反编译后的文件–uuid

package org.apache.jmeter.functions;import com.google.auto.service.AutoService;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.UUID;
import org.apache.jmeter.engine.util.CompoundVariable;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.samplers.Sampler;@AutoService({Function.class})
public class Uuid extends AbstractFunction {private static final List<String> desc = new ArrayList();private static final String KEY = "__UUID";public String execute(SampleResult previousResult, Sampler currentSampler) throws InvalidVariableException {return UUID.randomUUID().toString();}public void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {this.checkParameterCount(parameters, 0, 0);}public String getReferenceKey() {return "__UUID";}public List<String> getArgumentDesc() {return desc;}
}