38

我想使用 Apache JMeter 提供的 API 从 Java 程序创建和运行测试脚本。我已经了解了 ThreadGroup 和 Samplers 的基础知识。我可以使用 JMeter API 在我的 Java 类中创建它们。

ThreadGroup threadGroup = new ThreadGroup();
    LoopController lc = new LoopController();
    lc.setLoops(5);
    lc.setContinueForever(true);
    threadGroup.setSamplerController(lc);
    threadGroup.setNumThreads(5);
    threadGroup.setRampUp(1);

HTTPSampler sampler = new HTTPSampler();
    sampler.setDomain("localhost");
    sampler.setPort(8080);
    sampler.setPath("/jpetstore/shop/viewCategory.shtml");
    sampler.setMethod("GET");

    Arguments arg = new Arguments();
    arg.addArgument("categoryId", "FISH");

    sampler.setArguments(arg);

但是，我不知道如何创建一个结合线程组和采样器的测试脚本，然后从同一个程序中执行它。有任何想法吗？

4

5 回答 5

58

如果我理解正确，您想从 Java 程序中以编程方式运行整个测试计划。就个人而言，我发现创建一个测试计划 .JMX 文件并在 JMeter 非 GUI 模式下运行它更容易:)

这是一个基于原始问题中使用的控制器和采样器的简单 Java 示例。

import org.apache.jmeter.control.LoopController;
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.protocol.http.sampler.HTTPSampler;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.TestPlan;
import org.apache.jmeter.threads.SetupThreadGroup;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;

public class JMeterTestFromCode {

    public static void main(String[] args){
        // Engine
        StandardJMeterEngine jm = new StandardJMeterEngine();
        // jmeter.properties
        JMeterUtils.loadJMeterProperties("c:/tmp/jmeter.properties");

        HashTree hashTree = new HashTree();     

        // HTTP Sampler
        HTTPSampler httpSampler = new HTTPSampler();
        httpSampler.setDomain("www.google.com");
        httpSampler.setPort(80);
        httpSampler.setPath("/");
        httpSampler.setMethod("GET");

        // Loop Controller
        TestElement loopCtrl = new LoopController();
        ((LoopController)loopCtrl).setLoops(1);
        ((LoopController)loopCtrl).addTestElement(httpSampler);
        ((LoopController)loopCtrl).setFirst(true);

        // Thread Group
        SetupThreadGroup threadGroup = new SetupThreadGroup();
        threadGroup.setNumThreads(1);
        threadGroup.setRampUp(1);
        threadGroup.setSamplerController((LoopController)loopCtrl);

        // Test plan
        TestPlan testPlan = new TestPlan("MY TEST PLAN");

        hashTree.add("testPlan", testPlan);
        hashTree.add("loopCtrl", loopCtrl);
        hashTree.add("threadGroup", threadGroup);
        hashTree.add("httpSampler", httpSampler);       

        jm.configure(hashTree);

        jm.run();
    }
}

依赖项

这些是基于 JMeter 2.9 和使用的 HTTPSampler 所需的最小 JAR。其他采样器很可能具有不同的库 JAR 依赖项。

  • ApacheJMeter_core.jar
  • 乔丹.jar
  • avalon-framework-4.1.4.jar
  • ApacheJMeter_http.jar
  • commons-logging-1.1.1.jar
  • logkit-2.0.jar
  • oro-2.0.8.jar
  • commons-io-2.2.jar
  • commons-lang3-3.1.jar

笔记

  • 在第一次从 JMeter 安装 /bin 目录复制它之后，我还在 Windows 上的 c:\tmp 中硬连线了 jmeter.properties 的路径。
  • 我不确定如何为 HTTPSampler 设置转发代理。
于 2013-10-07T23:39:39.490 回答
14 
package jMeter;

import java.io.File;
import java.io.FileOutputStream;

import org.apache.jmeter.config.Arguments;
import org.apache.jmeter.config.gui.ArgumentsPanel;
import org.apache.jmeter.control.LoopController;
import org.apache.jmeter.control.gui.LoopControlPanel;
import org.apache.jmeter.control.gui.TestPlanGui;
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.protocol.http.control.gui.HttpTestSampleGui;
import org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy;
import org.apache.jmeter.reporters.ResultCollector;
import org.apache.jmeter.reporters.Summariser;
import org.apache.jmeter.save.SaveService;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.TestPlan;
import org.apache.jmeter.threads.ThreadGroup;
import org.apache.jmeter.threads.gui.ThreadGroupGui;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;

public class JMeterFromScratch {

        public static void main(String[] argv) throws Exception {

            String jmeterHome1 = "/home/ksahu/apache-jmeter-2.13";
            File jmeterHome=new File(jmeterHome1);
//          JMeterUtils.setJMeterHome(jmeterHome);
            String slash = System.getProperty("file.separator");

            if (jmeterHome.exists()) {
                File jmeterProperties = new File(jmeterHome.getPath() + slash + "bin" + slash + "jmeter.properties");
                if (jmeterProperties.exists()) {
                    //JMeter Engine
                    StandardJMeterEngine jmeter = new StandardJMeterEngine();

                    //JMeter initialization (properties, log levels, locale, etc)
                    JMeterUtils.setJMeterHome(jmeterHome.getPath());
                    JMeterUtils.loadJMeterProperties(jmeterProperties.getPath());
                    JMeterUtils.initLogging();// you can comment this line out to see extra log messages of i.e. DEBUG level
                    JMeterUtils.initLocale();

                    // JMeter Test Plan, basically JOrphan HashTree
                    HashTree testPlanTree = new HashTree();

                    // First HTTP Sampler - open example.com
                    HTTPSamplerProxy examplecomSampler = new HTTPSamplerProxy();
                    examplecomSampler.setDomain("www.google.com");
                    examplecomSampler.setPort(80);
                    examplecomSampler.setPath("/");
                    examplecomSampler.setMethod("GET");
                    examplecomSampler.setName("Open example.com");
                    examplecomSampler.setProperty(TestElement.TEST_CLASS, HTTPSamplerProxy.class.getName());
                    examplecomSampler.setProperty(TestElement.GUI_CLASS, HttpTestSampleGui.class.getName());


                    // Second HTTP Sampler - open blazemeter.com
                    HTTPSamplerProxy blazemetercomSampler = new HTTPSamplerProxy();
                    blazemetercomSampler.setDomain("www.tripodtech.net");
                    blazemetercomSampler.setPort(80);
                    blazemetercomSampler.setPath("/");
                    blazemetercomSampler.setMethod("GET");
                    blazemetercomSampler.setName("Open blazemeter.com");
                    blazemetercomSampler.setProperty(TestElement.TEST_CLASS, HTTPSamplerProxy.class.getName());
                    blazemetercomSampler.setProperty(TestElement.GUI_CLASS, HttpTestSampleGui.class.getName());


                    // Loop Controller
                    LoopController loopController = new LoopController();
                    loopController.setLoops(1);
                    loopController.setFirst(true);
                    loopController.setProperty(TestElement.TEST_CLASS, LoopController.class.getName());
                    loopController.setProperty(TestElement.GUI_CLASS, LoopControlPanel.class.getName());
                    loopController.initialize();

                    // Thread Group
                    ThreadGroup threadGroup = new ThreadGroup();
                    threadGroup.setName("Example Thread Group");
                    threadGroup.setNumThreads(1);
                    threadGroup.setRampUp(1);
                    threadGroup.setSamplerController(loopController);
                    threadGroup.setProperty(TestElement.TEST_CLASS, ThreadGroup.class.getName());
                    threadGroup.setProperty(TestElement.GUI_CLASS, ThreadGroupGui.class.getName());

                    // Test Plan
                    TestPlan testPlan = new TestPlan("Create JMeter Script From Java Code");
                    testPlan.setProperty(TestElement.TEST_CLASS, TestPlan.class.getName());
                    testPlan.setProperty(TestElement.GUI_CLASS, TestPlanGui.class.getName());
                    testPlan.setUserDefinedVariables((Arguments) new ArgumentsPanel().createTestElement());

                    // Construct Test Plan from previously initialized elements
                    testPlanTree.add(testPlan);
                    HashTree threadGroupHashTree = testPlanTree.add(testPlan, threadGroup);
                    threadGroupHashTree.add(blazemetercomSampler);
                    threadGroupHashTree.add(examplecomSampler);

                    // save generated test plan to JMeter's .jmx file format
                    SaveService.saveTree(testPlanTree, new FileOutputStream(jmeterHome + slash + "example.jmx"));

                    //add Summarizer output to get test progress in stdout like:
                    // summary =      2 in   1.3s =    1.5/s Avg:   631 Min:   290 Max:   973 Err:     0 (0.00%)
                    Summariser summer = null;
                    String summariserName = JMeterUtils.getPropDefault("summariser.name", "summary");
                    if (summariserName.length() > 0) {
                        summer = new Summariser(summariserName);
                    }


                    // Store execution results into a .jtl file
                    String logFile = jmeterHome + slash + "example.jtl";
                    ResultCollector logger = new ResultCollector(summer);
                    logger.setFilename(logFile);
                    testPlanTree.add(testPlanTree.getArray()[0], logger);

                    // Run Test Plan
                    jmeter.configure(testPlanTree);
                    jmeter.run();

                    System.out.println("Test completed. See " + jmeterHome + slash + "example.jtl file for results");
                    System.out.println("JMeter .jmx script is available at " + jmeterHome + slash + "example.jmx");
                    System.exit(0);

                }
            }

            System.err.println("jmeter.home property is not set or pointing to incorrect location");
            System.exit(1);


        }
    }
于 2016-03-09T11:42:51.097 回答
7

自 2020 年 8 月起，您可以尝试使用此库：

使用 Maven，添加到 pom.xml：

<dependency>
   <groupId>us.abstracta.jmeter</groupId>
   <projectId>jmeter-java-dsl</projectId>
   <version>0.1</version>
 </dependency>

示例代码：

 import static org.assertj.core.api.Assertions.assertThat;
 import static us.abstracta.jmeter.javadsl.JmeterDsl.*;

 import java.time.Duration;
 import org.eclipse.jetty.http.MimeTypes.Type;
 import org.junit.jupiter.api.Test;
 import us.abstracta.jmeter.javadsl.TestPlanStats;

 public class PerformanceTest {

   @Test
   public void testPerformance() throws IOException {
     TestPlanStats stats = testPlan(
        threadGroup(2, 10,
        httpSampler("http://my.service")
           .post("{\"name\": \"test\"}", Type.APPLICATION_JSON)
     ),
      //this is just to log details of each request stats
     jtlWriter("test.jtl")
     ).run();
              assertThat(stats.overall().elapsedTimePercentile99()).isLessThan(Duration.ofSeconds(5));
  }

 }
于 2020-08-14T08:20:28.410 回答
5

我使用具有 Maven 依赖关系的 JMeter Java Api 创建了一个简单的概念证明项目： https ://github.com/piotrbo/jmeterpoc

您可以生成 JMeter 项目 jmx 文件并从命令行执行它，也可以直接从 java 代码执行它。

这有点棘手，因为 jmx 文件要求每个 TestElement 都存在“guiclass”属性。要执行 jmx，添加就足够了guiclass（即使值不正确）。要在 JMeter GUI 中打开，需要为每个guiclass.

更烦人的问题是基于条件的流控制器。JMeter API 并没有为您提供比 GUI 更多的功能。您仍然需要将conditionegIfController作为常规传递String。字符串应包含 javascript。因此，您有基于 Java 的项目，其中包含带有语法错误的 javascript，直到您执行性能测试才会知道它:-(

保留代码和支持 IDE 而不是 JMeter GUI 的更好选择可能是学习 Scala 并使用http://gatling.io/

于 2017-03-16T20:21:13.083 回答
1

在非 GUI 模式下运行要快得多。做了一个项目，在后端模式下使用 Jmeter，然后解析 XML 文件以显示测试结果。看看这个回购 - https://github.com/rohitjaryal/RESTApiAutomation.git

于 2017-10-09T10:39:22.683 回答