JMeter测试中的吞吐量控制器自动化？

Question

我正在开展一个项目，我必须将 JMeter 测试作为后端服务自动化。我的测试计划是这样的

Thread Group
 -Throughput Controller1
       --sampler1

 -Throughput controller2
       --sampler2

我的一个示例吞吐量实现是这样的。在这里，我正在做的是最初将线程数设置为 10，然后我想将其控制为 3 和其他 7 的线程数，用于另一个采样器。

TestPlan testPlan = new TestPlan();
testPlan.setProperty(TestElement.TEST_CLASS, TestPlan.class.getName());
testPlan.setProperty(TestElement.GUI_CLASS, TestPlanGui.class.getName());
testPlan.setUserDefinedVariables((Arguments) new ArgumentsPanel().createTestElement());

SetupThreadGroup threadGroup = new SetupThreadGroup();
threadGroup.setRampUp(1);
threadGroup.setNumThreads(10);

ThroughputController throughputController = new ThroughputController();
throughputController.setComment("Through Put");
throughputController.setName("Through put");
throughputController.setMaxThroughput(3);
throughputController.setStyle(1);
   :
   :
   :
HTTPSamplerProxy examplecomSampler = loadTestSampler(urlDetails);

ListedHashTree testPlanTree = new ListedHashTree();
HashTree tpConfig = testPlanTree.add(testPlan);
HashTree tgConfig = tpConfig.add(threadGroup);
tgConfig.add(throughputController);
tgConfig.add(examplecomSampler)

当我运行这个时，所有 10 个线程都调用了 examplecomSampler。但我想将其限制为 3 和其他 7 到另一个采样器为什么会这样？

谢谢。

Answer 1

我不认为你初始化吞吐量控制器的方式是正确的，而且如果没有看到你的类的完整代码，很难说还有什么问题。

请注意，您应该使用 JMeter GUI 创建 JMeter 测试计划，官方不支持其他方式，但是您可以尝试使用包装工具，例如 Taurus

一般JMeter jmx scripts 基本上是 XML 文件，因此您可以将使用 JMeter API 生成的测试计划与来自 JMeter GUI 的测试计划进行比较，找出差异并修改您的代码以消除它们。

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如果您仍想进入 JMeter 脚本的编程创建方向，一个示例测试计划具有 2 个吞吐量控制器和 2 个采样器，分别配置为 30% 和 70% 的执行，如下所示：

HashTree testPlanTree = new HashTree();

HTTPSamplerProxy examplecomSampler = new HTTPSamplerProxy();
examplecomSampler.setDomain("example.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());

HTTPSamplerProxy blazemetercomSampler = new HTTPSamplerProxy();
blazemetercomSampler.setDomain("blazemeter.com");
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());

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();

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());

ThroughputController throughputController3 = new ThroughputController();
throughputController3.setComment("Through Put 3");
throughputController3.setName("Through put 3");
FloatProperty throughput3 = new FloatProperty();
throughput3.setName("ThroughputController.percentThroughput");
throughput3.setValue(30.0f);
throughputController3.setProperty(throughput3);
throughputController3.setProperty("ThroughputController.style", 1);
throughputController3.setProperty("ThroughputController.perThread", false);
throughputController3.setProperty(TestElement.TEST_CLASS, ThroughputController.class.getName());
throughputController3.setProperty(TestElement.GUI_CLASS, ThroughputControllerGui.class.getName());

ThroughputController throughputController7 = new ThroughputController();
throughputController7.setComment("Through Put 7");
throughputController7.setName("Through put 7");
FloatProperty throughput7 = new FloatProperty();
throughput7.setName("ThroughputController.percentThroughput");
throughput7.setValue(70.0f);
throughputController7.setProperty(throughput7);
throughputController7.setProperty("ThroughputController.style", 1);
throughputController7.setProperty("ThroughputController.perThread", false);
throughputController7.setProperty(TestElement.TEST_CLASS, ThroughputController.class.getName());
throughputController7.setProperty(TestElement.GUI_CLASS, ThroughputControllerGui.class.getName());

HashTree logicHashTree = new HashTree();

HashTree throughputController3Tree = new HashTree();
HashTree exampleComHashTree = new HashTree();

exampleComHashTree.add(examplecomSampler);
throughputController3Tree.add(throughputController3);
throughputController3Tree.add(throughputController3, exampleComHashTree);

HashTree throughputController7Tree = new HashTree();
HashTree blazemeterComHashTree = new HashTree();

blazemeterComHashTree.add(blazemetercomSampler);
throughputController7Tree.add(throughputController7);
throughputController7Tree.add(throughputController7, blazemeterComHashTree);


logicHashTree.add(throughputController3Tree);
logicHashTree.add(throughputController7Tree);

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());

testPlanTree.add(testPlan);
HashTree threadGroupHashTree = testPlanTree.add(testPlan, threadGroup);
threadGroupHashTree.add(logicHashTree);

查看Five Ways To Launch a JMeter Test without Using the JMeter GUI 文章，了解有关启动 JMeter 测试的各种方法的更多信息，包括使用 Java 语言从头开始创建一个。