摘要：了解.jmx文件格式類型，對jmeter二次開發與拓展有很大的幫助，當然也可以利用python對其進行一些處理（生成一些測試用例，對jmx文件進行 ”增刪改查“）。
一個完整用例的.jmx文件基本結構是這樣，類似於xml結構（樹狀結構）（文章標紅處 均是 可以修改的 地方（也可以說就是一個可控變量））；
python 處理xml文件的模塊，bs4 , xml.dom；
下面按結構自上而下講解各個部分再.jmx文件中的表示：
測試計划 root
<TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="測試計划" enabled="true"> <stringProp name="TestPlan.comments"></stringProp> <boolProp name="TestPlan.functional_mode">false</boolProp> <boolProp name="TestPlan.serialize_threadgroups">false</boolProp> <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="用戶定義的變量" enabled="true"> <collectionProp name="Arguments.arguments"/> </elementProp> <stringProp name="TestPlan.user_define_classpath"></stringProp> </TestPlan>
變量包含： testname, enabled(true啟用，false禁用)
線程組 first Child
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="組織架構管理_業務場景測試" enabled="true"> <stringProp name="ThreadGroup.on_sample_error">continue</stringProp> <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="循環控制器" enabled="true"> <boolProp name="LoopController.continue_forever">false</boolProp> <stringProp name="LoopController.loops">1</stringProp> -- 循環一次 </elementProp> <stringProp name="ThreadGroup.num_threads">1</stringProp> -- 線程數1 <stringProp name="ThreadGroup.ramp_time">1</stringProp> -- Ramp-up Time =1，啟動時間 <longProp name="ThreadGroup.start_time">1472796674000</longProp> <longProp name="ThreadGroup.end_time">1472796674000</longProp> <boolProp name="ThreadGroup.scheduler">false</boolProp> <stringProp name="ThreadGroup.duration"></stringProp> <stringProp name="ThreadGroup.delay"></stringProp> </ThreadGroup>
JDBCDataSource
<JDBCDataSource guiclass="TestBeanGUI" testclass="JDBCDataSource" testname="數據庫連接信息配置" enabled="true"> <boolProp name="autocommit">true</boolProp> <stringProp name="checkQuery">Select 1</stringProp> <stringProp name="connectionAge">5000</stringProp> -- 最大連接age <stringProp name="dataSource">mysql</stringProp> -- 資源池變量 <stringProp name="dbUrl">jdbc:mysql://localhost/db</stringProp> --jdbc連接 <stringProp name="driver">com.mysql.jdbc.Driver</stringProp> -- jdbc驅動（可以設置為常量） <boolProp name="keepAlive">true</boolProp> <stringProp name="password">root</stringProp> -- db密碼 <stringProp name="poolMax">10</stringProp> -- 最大連接數 <stringProp name="timeout">10000</stringProp> <stringProp name="transactionIsolation">DEFAULT</stringProp> <stringProp name="trimInterval">60000</stringProp> <stringProp name="username">name</stringProp> -- 用戶名 </JDBCDataSource>
HTTP請求默認值
<ConfigTestElement guiclass="HttpDefaultsGui" testclass="ConfigTestElement" testname="HTTP請求默認值" enabled="true"> <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="用戶定義的變量" enabled="true"> <collectionProp name="Arguments.arguments"/> </elementProp> <stringProp name="HTTPSampler.domain">host</stringProp> -- host 服務器IP <stringProp name="HTTPSampler.port">port</stringProp> -- port端口 <stringProp name="HTTPSampler.connect_timeout">100000</stringProp> -- 連接超時時間 <stringProp name="HTTPSampler.response_timeout">100000</stringProp> -- 請求超時時間 <stringProp name="HTTPSampler.protocol">http</stringProp> -- 協議類型（變量可填） <stringProp name="HTTPSampler.contentEncoding">utf-8</stringProp> <stringProp name="HTTPSampler.path"></stringProp> <stringProp name="HTTPSampler.implementation">HttpClient4</stringProp> -- 可選擇（java\HttpCliet4） <stringProp name="HTTPSampler.concurrentPool">4</stringProp> </ConfigTestElement>
HTTP信息頭管理器(http請求頭設置，key-value對應)
<HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="HTTP信息頭管理器" 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>
用戶定義的變量
<Arguments guiclass="ArgumentsPanel" testclass="Arguments" testname="用戶定義的變量" enabled="true"> <collectionProp name="Arguments.arguments"> <elementProp name="accessToken" elementType="Argument"> <stringProp name="Argument.name">accessToken</stringProp> <stringProp name="Argument.value">${accessToken}</stringProp> <stringProp name="Argument.metadata">=</stringProp> <stringProp name="Argument.desc">description</stringProp> </elementProp> </collectionProp> </Arguments>
僅一次控制器（循環控制器）
<OnceOnlyController guiclass="OnceOnlyControllerGui" testclass="OnceOnlyController" testname="組織管理" enabled="true"/>
查看結果樹（該部分為固定項）
<ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="察看結果樹" enabled="true"> <boolProp name="ResultCollector.error_logging">false</boolProp> <objProp> <name>saveConfig</name> <value class="SampleSaveConfiguration"> <time>true</time> <latency>true</latency> <timestamp>true</timestamp> <success>true</success> <label>true</label> <code>true</code> <message>true</message> <threadName>true</threadName> <dataType>true</dataType> <encoding>false</encoding> <assertions>true</assertions> <subresults>true</subresults> <responseData>false</responseData> <samplerData>false</samplerData> <xml>false</xml> <fieldNames>false</fieldNames> <responseHeaders>false</responseHeaders> <requestHeaders>false</requestHeaders> <responseDataOnError>false</responseDataOnError> <saveAssertionResultsFailureMessage>false</saveAssertionResultsFailureMessage> <assertionsResultsToSave>0</assertionsResultsToSave> <bytes>true</bytes> <url>true</url> <hostname>true</hostname> <threadCounts>true</threadCounts> <sampleCount>true</sampleCount> </value> </objProp> <stringProp name="filename"></stringProp> </ResultCollector>
HTTP請求（Sampler，此處為Json寫法，因為請求類型為Application/Json）
<HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="operatorLogin_操作員登錄" enabled="true"> <boolProp name="HTTPSampler.postBodyRaw">true</boolProp> <elementProp name="HTTPsampler.Arguments" elementType="Arguments"> <collectionProp name="Arguments.arguments"> <elementProp name="" elementType="HTTPArgument"> <boolProp name="HTTPArgument.always_encode">false</boolProp> <stringProp name="Argument.value">{"operatorNo":"${operatorNo}", "password":"${password}", "verifyCode":"${verifyCode}"}</stringProp> <stringProp name="Argument.metadata">=</stringProp> </elementProp> </collectionProp> </elementProp> <stringProp name="HTTPSampler.domain"></stringProp> <stringProp name="HTTPSampler.port"></stringProp> <stringProp name="HTTPSampler.connect_timeout"></stringProp> <stringProp name="HTTPSampler.response_timeout"></stringProp> <stringProp name="HTTPSampler.protocol"></stringProp> <stringProp name="HTTPSampler.contentEncoding"></stringProp> <stringProp name="HTTPSampler.path">/operatorLogin</stringProp> -- 請求路徑 <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> <boolProp name="HTTPSampler.monitor">false</boolProp> <stringProp name="HTTPSampler.embedded_url_re"></stringProp> </HTTPSamplerProxy>
響應斷言
<ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="響應斷言" enabled="true"> <collectionProp name="Asserion.test_strings"> <stringProp name="-1610171759">"errorCode":"0","errorMsg":"操作成功！"</stringProp> </collectionProp> <stringProp name="Assertion.test_field">Assertion.response_data</stringProp> <boolProp name="Assertion.assume_success">false</boolProp> <intProp name="Assertion.test_type">2</intProp> <stringProp name="Assertion.scope">all</stringProp> <stringProp name="Scope.variable">count_1</stringProp> </ResponseAssertion>
Debuger Sampler(固定樣式)
<DebugSampler guiclass="TestBeanGUI" testclass="DebugSampler" testname="Debug Sampler" enabled="true"> <boolProp name="displayJMeterProperties">false</boolProp> <boolProp name="displayJMeterVariables">true</boolProp> <boolProp name="displaySystemProperties">false</boolProp> </DebugSampler>