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JMeter笔记12 | JMeter集合点

虫无涯发表于 2023/02/03 09:09:37 2023/02/03

【摘要】 1 集合点性能测试需要模拟大量用户并发，而集合点就是尽量让虚拟用户同一时刻发送请求；JMeter中集合点通过定时器来完成。 2 定时器定时器主要是用来控制取样器的执行时机；有固定定时器、随机定时器等；本文主要介绍的是同步定时器。 3 同步定时器同步定时器用来保证取样器在同一时刻向服务器发起负载。 3.1 参数说明参数说明名称随意设置具有业务含义即可注释随意设置，可为空模拟用户组的数量设置多...

1 集合点

性能测试需要模拟大量用户并发，而集合点就是尽量让虚拟用户同一时刻发送请求；
JMeter中集合点通过定时器来完成。

2 定时器

定时器主要是用来控制取样器的执行时机；
有固定定时器、随机定时器等；
本文主要介绍的是同步定时器。

3 同步定时器

同步定时器用来保证取样器在同一时刻向服务器发起负载。

3.1 参数说明

参数	说明
名称	随意设置具有业务含义即可
注释	随意设置，可为空
模拟用户组的数量	设置多少用户进行同步操作；0表示执行线程组的线程数；设为3则只会执行三个线程数；
超时时间	以第一个到达同步定时器的用户开始，如果在设置的时间内所有用户都达到了，就立即释放后续操作，如果在设置的时间内还没达到，则目前到达集合点的用户先进行释放做后续操作；设置为0则一直等待；如果设置为3，线程设置为永远循环，每凑够三个就会执行释放；

4 实例说明

模拟10秒并发50；
同步定时器：模拟用户组的数量为5，超时时间为10ms，相当于每秒5个；
从【监听元件】中添加【用表格查看结果】，可以看到有50个请求。

5 本文涉及到的脚本

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="测试计划" enabled="true">
      <stringProp name="TestPlan.comments"></stringProp>
      <boolProp name="TestPlan.functional_mode">false</boolProp>
      <boolProp name="TestPlan.tearDown_on_shutdown">true</boolProp>
      <boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="用户定义的变量" enabled="true">
        <collectionProp name="Arguments.arguments">
          <elementProp name="COMMON" elementType="Argument">
            <stringProp name="Argument.name">COMMON</stringProp>
            <stringProp name="Argument.value">/zentao/api.php/v1</stringProp>
            <stringProp name="Argument.metadata">=</stringProp>
          </elementProp>
        </collectionProp>
      </elementProp>
      <stringProp name="TestPlan.user_define_classpath"></stringProp>
    </TestPlan>
    <hashTree>
      <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="HTTP信息头管理器" enabled="true">
        <collectionProp name="HeaderManager.headers">
          <elementProp name="" elementType="Header">
            <stringProp name="Header.name">Content-Type</stringProp>
            <stringProp name="Header.value">application/json</stringProp>
          </elementProp>
        </collectionProp>
      </HeaderManager>
      <hashTree/>
      <ConfigTestElement guiclass="HttpDefaultsGui" testclass="ConfigTestElement" testname="HTTP请求默认值" enabled="true">
        <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="用户定义的变量" enabled="true">
          <collectionProp name="Arguments.arguments"/>
        </elementProp>
        <stringProp name="HTTPSampler.domain">127.0.0.1</stringProp>
        <stringProp name="HTTPSampler.port">80</stringProp>
        <stringProp name="HTTPSampler.protocol">http</stringProp>
        <stringProp name="HTTPSampler.contentEncoding">UTF-8</stringProp>
        <stringProp name="HTTPSampler.path"></stringProp>
        <stringProp name="HTTPSampler.concurrentPool">6</stringProp>
        <stringProp name="HTTPSampler.connect_timeout"></stringProp>
        <stringProp name="HTTPSampler.response_timeout"></stringProp>
      </ConfigTestElement>
      <hashTree/>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="禅道接口" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="循环控制器" enabled="true">
          <boolProp name="LoopController.continue_forever">false</boolProp>
          <stringProp name="LoopController.loops">1</stringProp>
        </elementProp>
        <stringProp name="ThreadGroup.num_threads">50</stringProp>
        <stringProp name="ThreadGroup.ramp_time">10</stringProp>
        <boolProp name="ThreadGroup.scheduler">false</boolProp>
        <stringProp name="ThreadGroup.duration"></stringProp>
        <stringProp name="ThreadGroup.delay"></stringProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
      </ThreadGroup>
      <hashTree>
        <TransactionController guiclass="TransactionControllerGui" testclass="TransactionController" testname="事务控制器" enabled="true">
          <boolProp name="TransactionController.includeTimers">false</boolProp>
          <boolProp name="TransactionController.parent">true</boolProp>
        </TransactionController>
        <hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="1-获取token" enabled="true">
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            <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
              <collectionProp name="Arguments.arguments">
                <elementProp name="" elementType="HTTPArgument">
                  <boolProp name="HTTPArgument.always_encode">false</boolProp>
                  <stringProp name="Argument.value">{&quot;account&quot;: &quot;admin&quot;, &quot;password&quot;: &quot;123456&quot;}</stringProp>
                  <stringProp name="Argument.metadata">=</stringProp>
                </elementProp>
              </collectionProp>
            </elementProp>
            <stringProp name="HTTPSampler.domain"></stringProp>
            <stringProp name="HTTPSampler.port"></stringProp>
            <stringProp name="HTTPSampler.protocol"></stringProp>
            <stringProp name="HTTPSampler.contentEncoding">UTF-8</stringProp>
            <stringProp name="HTTPSampler.path">/${COMMON}/tokens</stringProp>
            <stringProp name="HTTPSampler.method">POST</stringProp>
            <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
            <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
            <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
            <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
            <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
            <stringProp name="HTTPSampler.connect_timeout"></stringProp>
            <stringProp name="HTTPSampler.response_timeout"></stringProp>
          </HTTPSamplerProxy>
          <hashTree>
            <JSONPostProcessor guiclass="JSONPostProcessorGui" testclass="JSONPostProcessor" testname="JSON提取器-提取返回的token" enabled="false">
              <stringProp name="JSONPostProcessor.referenceNames">token</stringProp>
              <stringProp name="JSONPostProcessor.jsonPathExprs">$.token</stringProp>
              <stringProp name="JSONPostProcessor.match_numbers">1</stringProp>
              <stringProp name="JSONPostProcessor.defaultValues">无</stringProp>
            </JSONPostProcessor>
            <hashTree/>
            <RegexExtractor guiclass="RegexExtractorGui" testclass="RegexExtractor" testname="正则表达式提取器" enabled="true">
              <stringProp name="RegexExtractor.useHeaders">false</stringProp>
              <stringProp name="RegexExtractor.refname">token</stringProp>
              <stringProp name="RegexExtractor.regex">&quot;token&quot;:&quot;(.*?)&quot;</stringProp>
              <stringProp name="RegexExtractor.template">$1$</stringProp>
              <stringProp name="RegexExtractor.default"></stringProp>
              <stringProp name="RegexExtractor.match_number">1</stringProp>
            </RegexExtractor>
            <hashTree/>
            <ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="响应断言-响应代码" enabled="true">
              <collectionProp name="Asserion.test_strings">
                <stringProp name="49587">201</stringProp>
              </collectionProp>
              <stringProp name="Assertion.custom_message"></stringProp>
              <stringProp name="Assertion.test_field">Assertion.response_code</stringProp>
              <boolProp name="Assertion.assume_success">false</boolProp>
              <intProp name="Assertion.test_type">2</intProp>
            </ResponseAssertion>
            <hashTree/>
          </hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="1-1-获取用户列表" enabled="true">
            <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
            <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
              <collectionProp name="Arguments.arguments">
                <elementProp name="" elementType="HTTPArgument">
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                  <stringProp name="Argument.value">{&quot;page&quot;: 1,&quot;limit&quot;: 20}</stringProp>
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                </elementProp>
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            </elementProp>
            <stringProp name="HTTPSampler.domain"></stringProp>
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            <stringProp name="HTTPSampler.path">/${COMMON}/users</stringProp>
            <stringProp name="HTTPSampler.method">GET</stringProp>
            <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
            <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
            <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
            <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
            <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
            <stringProp name="HTTPSampler.connect_timeout"></stringProp>
            <stringProp name="HTTPSampler.response_timeout"></stringProp>
          </HTTPSamplerProxy>
          <hashTree>
            <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="保持登陆会话" enabled="true">
              <collectionProp name="HeaderManager.headers">
                <elementProp name="" elementType="Header">
                  <stringProp name="Header.name">token</stringProp>
                  <stringProp name="Header.value">${token}</stringProp>
                </elementProp>
              </collectionProp>
            </HeaderManager>
            <hashTree/>
            <ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="响应断言-响应文本" enabled="true">
              <collectionProp name="Asserion.test_strings">
                <stringProp name="-1677599864">&quot;page&quot;:1</stringProp>
              </collectionProp>
              <stringProp name="Assertion.custom_message"></stringProp>
              <stringProp name="Assertion.test_field">Assertion.response_data</stringProp>
              <boolProp name="Assertion.assume_success">false</boolProp>
              <intProp name="Assertion.test_type">2</intProp>
            </ResponseAssertion>
            <hashTree/>
          </hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="2-创建用户" enabled="true">
            <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
            <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
              <collectionProp name="Arguments.arguments">
                <elementProp name="" elementType="HTTPArgument">
                  <boolProp name="HTTPArgument.always_encode">false</boolProp>
                  <stringProp name="Argument.value">{&quot;account&quot;: &quot;${account}&quot;, &quot;password&quot;: &quot;${password}&quot;, &quot;realname&quot;: &quot;测试用户&quot;}</stringProp>
                  <stringProp name="Argument.metadata">=</stringProp>
                </elementProp>
              </collectionProp>
            </elementProp>
            <stringProp name="HTTPSampler.domain"></stringProp>
            <stringProp name="HTTPSampler.port"></stringProp>
            <stringProp name="HTTPSampler.protocol"></stringProp>
            <stringProp name="HTTPSampler.contentEncoding">UTF-8</stringProp>
            <stringProp name="HTTPSampler.path">/${COMMON}/users</stringProp>
            <stringProp name="HTTPSampler.method">POST</stringProp>
            <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
            <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
            <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
            <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
            <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
            <stringProp name="HTTPSampler.connect_timeout"></stringProp>
            <stringProp name="HTTPSampler.response_timeout"></stringProp>
          </HTTPSamplerProxy>
          <hashTree>
            <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="保持登陆会话" enabled="true">
              <collectionProp name="HeaderManager.headers">
                <elementProp name="" elementType="Header">
                  <stringProp name="Header.name">token</stringProp>
                  <stringProp name="Header.value">${token}</stringProp>
                </elementProp>
              </collectionProp>
            </HeaderManager>
            <hashTree/>
            <CSVDataSet guiclass="TestBeanGUI" testclass="CSVDataSet" testname="CSV 数据文件设置" enabled="true">
              <stringProp name="filename">D:/A_jmeter_test/create_user.txt</stringProp>
              <stringProp name="fileEncoding">UTF-8</stringProp>
              <stringProp name="variableNames">account,password</stringProp>
              <boolProp name="ignoreFirstLine">true</boolProp>
              <stringProp name="delimiter">,</stringProp>
              <boolProp name="quotedData">false</boolProp>
              <boolProp name="recycle">true</boolProp>
              <boolProp name="stopThread">false</boolProp>
              <stringProp name="shareMode">shareMode.all</stringProp>
            </CSVDataSet>
            <hashTree/>
            <JSONPostProcessor guiclass="JSONPostProcessorGui" testclass="JSONPostProcessor" testname="JSON提取器" enabled="true">
              <stringProp name="JSONPostProcessor.referenceNames">id</stringProp>
              <stringProp name="JSONPostProcessor.jsonPathExprs">$.id</stringProp>
              <stringProp name="JSONPostProcessor.match_numbers">1</stringProp>
              <stringProp name="JSONPostProcessor.defaultValues">NULL</stringProp>
            </JSONPostProcessor>
            <hashTree/>
          </hashTree>
        </hashTree>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="3-删除用户" enabled="false">
          <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="用户定义的变量" enabled="true">
            <collectionProp name="Arguments.arguments"/>
          </elementProp>
          <stringProp name="HTTPSampler.domain"></stringProp>
          <stringProp name="HTTPSampler.port"></stringProp>
          <stringProp name="HTTPSampler.protocol"></stringProp>
          <stringProp name="HTTPSampler.contentEncoding">UTF-8</stringProp>
          <stringProp name="HTTPSampler.path">/${COMMON}/users/${id}</stringProp>
          <stringProp name="HTTPSampler.method">DELETE</stringProp>
          <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
          <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
          <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
          <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
          <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
          <stringProp name="HTTPSampler.connect_timeout"></stringProp>
          <stringProp name="HTTPSampler.response_timeout"></stringProp>
        </HTTPSamplerProxy>
        <hashTree>
          <HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="保持登陆会话" enabled="true">
            <collectionProp name="HeaderManager.headers">
              <elementProp name="" elementType="Header">
                <stringProp name="Header.name">token</stringProp>
                <stringProp name="Header.value">${token}</stringProp>
              </elementProp>
            </collectionProp>
          </HeaderManager>
          <hashTree/>
        </hashTree>
        <SyncTimer guiclass="TestBeanGUI" testclass="SyncTimer" testname="同步定时器" enabled="true">
          <intProp name="groupSize">5</intProp>
          <longProp name="timeoutInMs">10</longProp>
        </SyncTimer>
        <hashTree/>
      </hashTree>
      <ResultCollector guiclass="TableVisualizer" testclass="ResultCollector" testname="用表格察看结果" enabled="true">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
      <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="察看结果树" enabled="true">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

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JMeter笔记12 | JMeter集合点

1 集合点

2 定时器

3 同步定时器

3.1 参数说明

4 实例说明

5 本文涉及到的脚本

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JMeter笔记12 | JMeter集合点

1 集合点

2 定时器

3 同步定时器

3.1 参数说明

4 实例说明

5 本文涉及到的脚本

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