java在Jmeter中生成会话ID
我必须使用JMeter创建负载测试。最简单的测试版本应该创建包含特定内容的HTTP POST请求。URL应该如下所示:
/myapp/SESSION-ID/SEQIENCE
在哪里
SESSION-ID
是自定义UUID
SEQUENCE
-序列号(1,2,3,…)进入会议
我在JMeter中定义了HTTP请求,如下所示:
/myapp/${sessionid}/${__counter(true)}
我的问题是生成会话ID。我想为每个用户使用不同的会话,但对特定用户的所有点击都应该相同。听起来很简单
我将用户定义的变量添加到我的线程组:sessionid=${__UUID}
。
这将为所有请求和线程生成全局UUID。我试图将用户定义的变量配置元素与HTTP请求采样器和简单控制器包装在一起,以减少变量可见性的范围,但没有帮助
我做错了什么
这是我的测试计划。顶部的一些元素显示了我为实现上述目标所做的尝试,但被禁用
<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="2.8" jmeter="2.13 r1665067">
<hashTree>
<TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Cligate1" enabled="true">
<stringProp name="TestPlan.comments">My first attempt to run simple test again cligate</stringProp>
<boolProp name="TestPlan.functional_mode">false</boolProp>
<boolProp name="TestPlan.serialize_threadgroups">true</boolProp>
<elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
<collectionProp name="Arguments.arguments">
<elementProp name="host" elementType="Argument">
<stringProp name="Argument.name">host</stringProp>
<stringProp name="Argument.value">localhost</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="port" elementType="Argument">
<stringProp name="Argument.name">port</stringProp>
<stringProp name="Argument.value">8080</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</collectionProp>
</elementProp>
<stringProp name="TestPlan.user_define_classpath"></stringProp>
</TestPlan>
<hashTree>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thick client POST screenshot thread pool" enabled="true">
<stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
<elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
<boolProp name="LoopController.continue_forever">false</boolProp>
<stringProp name="LoopController.loops">10</stringProp>
</elementProp>
<stringProp name="ThreadGroup.num_threads">1</stringProp>
<stringProp name="ThreadGroup.ramp_time">1</stringProp>
<longProp name="ThreadGroup.start_time">1443949496000</longProp>
<longProp name="ThreadGroup.end_time">1443949496000</longProp>
<boolProp name="ThreadGroup.scheduler">false</boolProp>
<stringProp name="ThreadGroup.duration"></stringProp>
<stringProp name="ThreadGroup.delay"></stringProp>
</ThreadGroup>
<hashTree>
<CSVDataSet guiclass="TestBeanGUI" testclass="CSVDataSet" testname="SingleSessionId per file" enabled="false">
<stringProp name="delimiter">,</stringProp>
<stringProp name="fileEncoding"></stringProp>
<stringProp name="filename">sessionid${__threadNum}.csv</stringProp>
<boolProp name="quotedData">false</boolProp>
<boolProp name="recycle">true</boolProp>
<stringProp name="shareMode">shareMode.all</stringProp>
<boolProp name="stopThread">false</boolProp>
<stringProp name="variableNames">sessionid</stringProp>
</CSVDataSet>
<hashTree/>
<CSVDataSet guiclass="TestBeanGUI" testclass="CSVDataSet" testname="File with all session IDs" enabled="false">
<stringProp name="delimiter">,</stringProp>
<stringProp name="fileEncoding"></stringProp>
<stringProp name="filename">sessionids.csv</stringProp>
<boolProp name="quotedData">false</boolProp>
<boolProp name="recycle">true</boolProp>
<stringProp name="shareMode">shareMode.all</stringProp>
<boolProp name="stopThread">false</boolProp>
<stringProp name="variableNames">sessionid</stringProp>
</CSVDataSet>
<hashTree/>
<Arguments guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="false">
<collectionProp name="Arguments.arguments">
<elementProp name="sessionid" elementType="Argument">
<stringProp name="Argument.name">sessionid</stringProp>
<stringProp name="Argument.value">${__UUID}</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</collectionProp>
</Arguments>
<hashTree/>
<UserParameters guiclass="UserParametersGui" testclass="UserParameters" testname="User Parameters" enabled="true">
<collectionProp name="UserParameters.names">
<stringProp name="607797809">sessionid</stringProp>
</collectionProp>
<collectionProp name="UserParameters.thread_values">
<collectionProp name="-1753070663">
<stringProp name="187832203">${__UUID}</stringProp>
</collectionProp>
<collectionProp name="2010322626">
<stringProp name="97314">bbb</stringProp>
</collectionProp>
</collectionProp>
<boolProp name="UserParameters.per_iteration">false</boolProp>
</UserParameters>
<hashTree/>
<BeanShellPreProcessor guiclass="TestBeanGUI" testclass="BeanShellPreProcessor" testname="BeanShell PreProcessor" enabled="false">
<stringProp name="filename"></stringProp>
<stringProp name="parameters"></stringProp>
<boolProp name="resetInterpreter">false</boolProp>
<stringProp name="script">String uuid = "${__UUID}"; //assuming you have removed the user defined variables
//String uuid = "${user.defined.UUID}" + (ctx.getThreadNum() + 1);
String sessionid = uuid + (ctx.getThreadNum() + 1);
vars.put("sessionid", uuid);</stringProp>
</BeanShellPreProcessor>
<hashTree/>
<HeaderManager guiclass="HeaderPanel" testclass="HeaderManager" testname="HTTP Header Manager" enabled="true">
<collectionProp name="HeaderManager.headers">
<elementProp name="" elementType="Header">
<stringProp name="Header.name">content-type</stringProp>
<stringProp name="Header.value">image/jpeg</stringProp>
</elementProp>
</collectionProp>
</HeaderManager>
<hashTree/>
<HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="Metadata" enabled="true">
<elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" enabled="true">
<collectionProp name="Arguments.arguments"/>
</elementProp>
<stringProp name="HTTPSampler.domain">${host}</stringProp>
<stringProp name="HTTPSampler.port">${port}</stringProp>
<stringProp name="HTTPSampler.connect_timeout">100</stringProp>
<stringProp name="HTTPSampler.response_timeout">1000</stringProp>
<stringProp name="HTTPSampler.protocol">http</stringProp>
<stringProp name="HTTPSampler.contentEncoding">UTF-8</stringProp>
<stringProp name="HTTPSampler.path">/thickclient/screenshot/3F2504E0-4F89-41D3-9A0C-0305E82C3301/${sessionid}/${__counter(true)}</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.implementation">HttpClient4</stringProp>
<elementProp name="HTTPsampler.Files" elementType="HTTPFileArgs">
<collectionProp name="HTTPFileArgs.files">
<elementProp name="C:\progs\apache-jmeter\apache-jmeter-2.13\bin\clarisite\screenshot.jpg" elementType="HTTPFileArg">
<stringProp name="File.path">C:\progs\apache-jmeter\apache-jmeter-2.13\bin\clarisite\screenshot.jpg</stringProp>
<stringProp name="File.paramname"></stringProp>
<stringProp name="File.mimetype">image/jpeg</stringProp>
</elementProp>
</collectionProp>
</elementProp>
<boolProp name="HTTPSampler.monitor">false</boolProp>
<stringProp name="HTTPSampler.embedded_url_re"></stringProp>
<stringProp name="TestPlan.comments">Empty valid JSON</stringProp>
</HTTPSamplerProxy>
<hashTree/>
<kg.apc.jmeter.vizualizers.CorrectedResultCollector guiclass="kg.apc.jmeter.vizualizers.HitsPerSecondGui" testclass="kg.apc.jmeter.vizualizers.CorrectedResultCollector" testname="jp@gc - Hits per Second" 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>
<threadCounts>true</threadCounts>
</value>
</objProp>
<stringProp name="filename"></stringProp>
<longProp name="interval_grouping">1000</longProp>
<boolProp name="graph_aggregated">false</boolProp>
<stringProp name="include_sample_labels"></stringProp>
<stringProp name="exclude_sample_labels"></stringProp>
<stringProp name="start_offset"></stringProp>
<stringProp name="end_offset"></stringProp>
<boolProp name="include_checkbox_state">false</boolProp>
<boolProp name="exclude_checkbox_state">false</boolProp>
</kg.apc.jmeter.vizualizers.CorrectedResultCollector>
<hashTree/>
</hashTree>
</hashTree>
</hashTree>
</jmeterTestPlan>
# 1 楼答案
将
User Defined Variables
config元素放在哪里并不重要。它们首先被初始化。所有线程的值都相同要创建特定于线程/用户的UUID,请在第一个HTTP请求下添加beanshell预处理器,代码如下
用户。定义UUID是在用户定义变量中用于UUID的变量名。如果sessionid是变量名,则为
在整个测试过程中使用
${UUID}
访问为用户创建的唯一sessionID在对你的测试计划有所了解之后