jmeter java请求参数配置

<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">
            <elementProp name="rw" elementType="Argument">
            <stringProp name="Argument.name">rw</stringProp>
            <stringProp name="Argument.value">w</stringProp>
            <stringProp name="Argument.metadata">=</stringProp>
            </elementProp>
            </collectionProp>
          </elementProp>
          <stringProp name="classname">TestMongodb</stringProp>
        </JavaSampler>