JMeter是一个性能测试的开源框架,它提供了图形界面和非图形界面两种动行方式。最近在研究搭建一个性能测试的平台,希望通过.jmx文件,在非图形界面的linux上运行。.jmx文件通过页面配置。我们平台希望支持Java和Http请求两种方式的性能测试,通过收集性能测试时的QPS, 响应时间,线程数,主机监控等指标来观察应用程序的性能情况。
FreeMarker在百度百科是这样描述的(https://baike.baidu.com/item/freemarker/9489366?fr=aladdin)是一款模板引擎: 即一种基于模板和要改变的数据, 并用来生成输出文本(HTML、网页、电子邮件、配置文件、源代码等)的通用工具。 它不是面向最终用户的,而是一个Java类库,是一款程序员可以嵌入他们所开发产品的组件。
在平台中,我们先根据需要创建.jmx模板文件,Java请求的模板如下:
<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="2.9" jmeter="3.2 r1790748">
<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.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>
<stringProp name="TestPlan.user_define_classpath">${UD_CLASSPATH}</stringProp> <!-- 这里可以写入用户自定义的类路径,可以是目录,可以是jar包;可以添加多项,每一项通过逗号分隔-->
</TestPlan>
<hashTree>
<com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup guiclass="com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroupGui" testclass="com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup" testname="bzm - Concurrency Thread Group" enabled="true">
<elementProp name="ThreadGroup.main_controller" elementType="com.blazemeter.jmeter.control.VirtualUserController"/>
<stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
<stringProp name="TargetLevel">${UD_ThreadNum}</stringProp> <!--这里定义要启动的并发数--> <!---->
<stringProp name="RampUp">${UD_RampUp}</stringProp> <!--这里定义启动这些并发数所需要的时间-->
<stringProp name="Steps">${UD_Steps}</stringProp> <!--这里定义启动这些并发数需要几个阶段-->
<stringProp name="Hold">${UD_HoldTime}</stringProp> <!--这里定义启动这些线后,保持压力多久-->
<stringProp name="LogFilename"></stringProp>
<stringProp name="Iterations"></stringProp>
<stringProp name="Unit">M</stringProp>
</com.blazemeter.jmeter.threads.concurrency.ConcurrencyThreadGroup>
<hashTree>
<CSVDataSet guiclass="TestBeanGUI" testclass="CSVDataSet" testname="CSV Data Set Config" enabled="${UD_isArg}"><!--是否需要数据文件,default false-->
<stringProp name="delimiter">${UD_Delimiter}</stringProp> <!--这里定义数据文件中一条记录的分割方式位置-->
<stringProp name="fileEncoding">utf-8</stringProp>
<stringProp name="filename">${UD_DataFileName}</stringProp> <!--这里定义数据文件的位置-->
<boolProp name="ignoreFirstLine">false</boolProp>
<boolProp name="quotedData">false</boolProp>
<boolProp name="recycle">true</boolProp>
<stringProp name="shareMode">shareMode.all</stringProp>
<boolProp name="stopThread">false</boolProp>
<stringProp name="variableNames">${UD_VariableName}</stringProp> <!--这里定义参数名称,使用逗号分隔-->
</CSVDataSet>
<hashTree/>
<JavaSampler guiclass="JavaTestSamplerGui" testclass="JavaSampler" testname="Java请求" enabled="true">
<elementProp name="arguments" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" enabled="true">
<collectionProp name="Arguments.arguments">
<#list elementProp as elementProp>
<elementProp name="${elementProp.UD_ArgName}" elementType="Argument">
<stringProp name="Argument.name">${elementProp.UD_ArgName}</stringProp> <!-- 这里填写参数名称,有多个时,循环写多段 -->
<stringProp name="Argument.value">${elementProp.UD_ArgValue}</stringProp> <!-- 这里填写参数值,如果是参数数据,需要从数据文件中取出,则写参数名,如 "${elementProp.query}" -->
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</#list>
</collectionProp>
</elementProp>
<stringProp name="classname">${UD_TestClass}</stringProp> <!--这里定义自定义JavaSampler实现类的全路径-->
</JavaSampler>
<hashTree/>
<ConstantTimer guiclass="ConstantTimerGui" testclass="ConstantTimer" testname="固定定时器" enabled="true">
<stringProp name="ConstantTimer.delay">${UD_Timer}</stringProp> <!--这里定义自定义延时器的时长-->
</ConstantTimer>
<hashTree/>
<BackendListener guiclass="BackendListenerGui" testclass="BackendListener" testname="Backend Listener" enabled="true">
<elementProp name="arguments" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" enabled="true">
<collectionProp name="Arguments.arguments">
<elementProp name="graphiteMetricsSender" elementType="Argument">
<stringProp name="Argument.name">graphiteMetricsSender</stringProp>
<stringProp name="Argument.value">org.apache.jmeter.visualizers.backend.graphite.TextGraphiteMetricsSender</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="graphiteHost" elementType="Argument">
<stringProp name="Argument.name">graphiteHost</stringProp>
<stringProp name="Argument.value">${UD_GraphiteHost}</stringProp> <!--这里填写graphiteHost-->
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="graphitePort" elementType="Argument">
<stringProp name="Argument.name">graphitePort</stringProp>
<stringProp name="Argument.value">${UD_GraphitePort}</stringProp> <!--这里填写graphitePort-->
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="rootMetricsPrefix" elementType="Argument">
<stringProp name="Argument.name">rootMetricsPrefix</stringProp>
<stringProp name="Argument.value">${UD_RootMetricsPrefix}</stringProp> <!--这里填写rootMetricsPrefix,默认值为 "jmeter."-->
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="summaryOnly" elementType="Argument">
<stringProp name="Argument.name">summaryOnly</stringProp>
<stringProp name="Argument.value">true</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="samplersList" elementType="Argument">
<stringProp name="Argument.name">samplersList</stringProp>
<stringProp name="Argument.value"></stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
<elementProp name="percentiles" elementType="Argument">
<stringProp name="Argument.name">percentiles</stringProp>
<stringProp name="Argument.value">90;95;99</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</collectionProp>
</elementProp>
<stringProp name="classname">org.apache.jmeter.visualizers.backend.graphite.GraphiteBackendListenerClient</stringProp>
</BackendListener>
<hashTree/>
</hashTree>
</hashTree>
<WorkBench guiclass="WorkBenchGui" testclass="WorkBench" testname="工作台" enabled="false">
<boolProp name="WorkBench.save">true</boolProp>
</WorkBench>
<hashTree/>
</hashTree>
</jmeterTestPlan>
模板中用${}包起来的字段即为我们要替换的字段
处理的关键代码如下:
Configuration configuration = new Configuration(Configuration.VERSION_2_3_25);
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
configuration.setDirectoryForTemplateLoading(new File(classLoader.getResource("").getPath()));
configuration.setObjectWrapper(new DefaultObjectWrapper(Configuration.VERSION_2_3_25));
Template template = template = configuration.getTemplate("JavaSampler_Templete.jmx","UTF-8");//加载模板文件
Map<String, Object> rootMap = new HashMap<>();//用map处理模板中的字段
rootMap.put("UD_CLASSPATH", "/");
rootMap.put("UD_ThreadNum", 1);
rootMap.put("UD_RampUp", 1);
rootMap.put("UD_Steps", 1);
rootMap.put("UD_HoldTime", 1);
rootMap.put("UD_Timer", "1000");
rootMap.put("UD_isArg", "false");
rootMap.put("UD_Domain", "www.baidu.com");
rootMap.put("UD_Port", "80");
rootMap.put("UD_Protocol", "");
rootMap.put("UD_Path", "");
rootMap.put("UD_Delimiter", "");
rootMap.put("UD_DataFileName", "");
rootMap.put("UD_VariableName", "");
rootMap.put("UD_GraphiteHost", "localhost");
rootMap.put("UD_GraphitePort", "2003");
rootMap.put("UD_RootMetricsPrefix", "jmeter.");
List<Map<String, Object>> paraList = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("UD_ArguName", "");
map.put("UD_ArguValue", "");
map.put("testName", "");
paraList.add(map);
rootMap.put("elementProp", paraList);// 用list处理模板中list的部分
根据上述设置即可生成可执行的模板文件。
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