jmeter添加自定函数的实例(jmeter5.3+IntelliJ IDEA)

package org.apache.jmeter.functions;

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.util.JMeterUtils;


public class MyFunction extends AbstractFunction {

	//自定义function的描述
  private static final List<String> desc = new LinkedList<>();
  //function名称
  private static final String KEY = "__MyFunction";

  static {
    desc.add("systemnum");
    desc.add("sizenum");
  }

  private CompoundVariable systemnum;
  private CompoundVariable sizenum;

	// 函数的逻辑执行主体
  /** {@inheritDoc} */
  @Override
  public String execute(SampleResult previousResult, Sampler currentSampler)
      throws InvalidVariableException {

    long num = Long.valueOf(systemnum.execute());
    int size = Integer.valueOf(sizenum.execute());

    String str = Long.toHexString(num);;

    while(str.length()<size){
      str = "0" + str;
    }

    return str;

  }

	// 用来接收和处理GUI界面的参数的传值
  /** {@inheritDoc} */
  @Override
  public void setParameters(Collection<CompoundVariable> parameters) throws InvalidVariableException {
    checkParameterCount(parameters, 2);
    Object[] values = parameters.toArray();

    systemnum = (CompoundVariable) values[0];
    sizenum = (CompoundVariable) values[1];

  }

	// 用来定义函数的名称，把自定义的内容显示在函数对话框中
  /** {@inheritDoc} */
  @Override
  public String getReferenceKey() {
    return KEY;
  }

	// 用来设置GUI界面的函数对话框，把自己定义的参数给显示在jmeter的GUI界面上
  /** {@inheritDoc} */
  @Override
  public List<String> getArgumentDesc() {
    return desc;
  }

}

<build>
    <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>
        </configuration>
      </plugin>
    </plugins>
  </build>