JMeter笔记11 | JMeter事务

Posted 2022-08-23 NoamaNelson

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11 | JMeter事务

1 事务
2 逻辑控制器
3 事务控制器
- 3.1 参数说明
4 实例说明
5 本文涉及到的脚本

1 事务

性能测试比较关注TPS，而TPS代表每秒事务数；
每个事务对应的是每个请求；
JMeter把每个请求统计成一个事务；
JMeter也可以把多个操作统计成一个事务，可通过逻辑控制器中的事务控制器来完成。

2 逻辑控制器

逻辑控制器从字面理解就是控制程序的逻辑；
JMeter逻辑控制器有很多个，本文主要用到的是事务控制器；
JMeter逻辑控制器如下：

3 事务控制器

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
`Generate parent sample`	1、若事务控制器下有多个请求，勾选后在“查看结果树”中可同时看到事务控制器和每个取样器（请求）；2、是否控制器的成功取决于子事务是否成功；3、任何一个失败代表整个事务失败
`Include duration of timer and pre-post processors in generated sample`	是否包括定时器、预处理和后期处理延迟的时间

4 实例说明

在JMeter笔记10 | JMeter检查点基础上我们添加事务控制器；
控制器添加在线程组下。

4.1 添加【事务控制器】

在线程组“禅道接口”下添加事务控制器，如下：

直接运行脚本，发现“查看结果树”中没有事务控制器的显示

4.2 勾选Generate parent sample

勾选Generate parent sample，运行脚本，发现“查看结果树”中有事务控制器的显示；
从上图中为什么事务控制器是成功的，因为它下边没有任何取样器。

4.3 在事务控制器下添加取样器

我们把之前脚本中的“1-获取token”和“1-1-获取用户列表”拖放到事务控制器下；
运行后发现，事务控制器是成功的，且下边的取样器也可以看到。

我们再把“2-创建用户”这个失败的请求放到事务控制器下，再次运行，会发现事务是失败的，那就满足规则“事务控制器下任何一个取样器失败，则整个事务失败”

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">1</stringProp>
        <stringProp name="ThreadGroup.ramp_time">1</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">
            <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;admin&quot;, &quot;password&quot;: &quot;123456&quot;</stringProp>
                  <stringProp name="Argument.metadata">=</stringProp>
                </elementProp>
              </collectionProp>
            </elementProp>
            <stringProp name="HTTPSampler.domain"></stringProp>
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            <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>
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            <hashTree/>
          </hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="1-1-获取用户列表" enabled="true">
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            <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">$token</stringProp>
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            </HeaderManager>
            <hashTree/>
            <ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="响应断言-响应文本" enabled="true">
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            </ResponseAssertion>
            <hashTree/>
          </hashTree>
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              <collectionProp name="Arguments.arguments">
                <elementProp name="" elementType="HTTPArgument">
                  <boolProp name="HTTPArgument.always_encode">false</boolProp>
                  <stringProp name="Argument.value">&quot;account&quot;: &quot;$account&quot;, &quot;password&quot;: &quot;$password&quot;, &quot;realname&quot;: &quot;测试用户&quot;</stringProp>
                  <stringProp name="Argument.metadata">=</stringProp>
                </elementProp>
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            <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
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