Jmeter的Beanshell断言使用

我真的不知道取啥名
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Jmeter的Beanshell断言使用

  • jmeter如何将英文切换为中文

    • ${jmeter_home}/bin
      • 修改jmeter.properties
        • 新增一条记录：language=zh_CN
          • 注意：如果文件中已经存在language这个key，且该key处于放开的状态，那么需要在此上进行value的替换

  • jmeter中beanshell的log日志如何看？

    • ${jmeter_home}/bin下的jmeter.log
      • 通过tail命令就可以看到了beanshell中输出的日志

  • 解决痛点

    1. jmeter没有怎么使用过的人
    2. beanshell刚刚开始入门的同学
    3. 大多数文章处于断章取义吧，只给到部分截图，导致学习的人理解的不是很清晰；

实例场景如下

  • GET请求：http://localhost:9200/_cat/health?format=json

    • 看下最终的返回数据：

      [
  {
    "epoch" : "1648050037",
    "timestamp" : "15:40:37",
    "cluster" : "elasticsearch",
    "status" : "yellow",
    "node.total" : "1",
    "node.data" : "11",
    "shards" : "143",
    "pri" : "143",
    "relo" : "0",
    "init" : "0",
    "unassign" : "2",
    "pending_tasks" : "0",
    "max_task_wait_time" : "-",
    "active_shards_percent" : "98.6%"
  }
]

  • 需求是这样的：

    • 场景一
      • 通过Jmeter进行结果断言获取数组的大小，当size==1，证明该请求正确；
    • 场景二
      • 通过json path进行断言结果判断，当node.total==1,证明该请求正确

场景一

  1. 创建一个事件，如下图所示；

    image-20220323234539604

  2. 将json相关的包放到${jmeter_home}/lib目录下面，同时避免jmeter没有扫描到我们已经放置好的包，做到如下的配置，可最大避免找到问题的错误；

    1. 图一：当指定的包引入${jmeter_home}/lib目录下面，我们以fastjson和json为例子，如图：

      image-20220323235221985

    2. 为了避免jmeter没有扫描到指定的包，同时我们创建的事件下引入lib目录，如图：

      image-20220323235837262

  3. 创建一个线程组，这里就不做演示了

  4. 我们创建一个请求，由于该请求带有验证，所以我们会通过如下步骤创建两个小的事件

    1. 添加一个请求，如图所示

      image-20220324000301173

    2. 添加一个http的认证，如图所示

      image-20220324000339754

  5. 在http请求目录下，分别添加,截图如下

    image-20220324000530445

    1. BeanShell断言，截图如下：

      image-20220324000603837

      • 由于接下来有两组测试

        • 判断结果size==1，脚本如下

          import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;


String response = prev.getResponseDataAsString();
JSONArray objects = JSON.parseArray(response);
int length = objects.size();
log.info("msg value:{}", length);
if (length == 1) {
	Failure = false;
	FailureMessage = "交易成功！";
	
} else {
	Failure = true;
	FailureMessage = "交易失败！";
}

        • 判断结果size==0,脚本如下

          import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;


String response = prev.getResponseDataAsString();
JSONArray objects = JSON.parseArray(response);
int length = objects.size();
log.info("msg value:{}", length);
if (length == 0) {
	Failure = false;
	FailureMessage = "交易成功！";
	
} else {
	Failure = true;
	FailureMessage = "交易失败！";
}

    2. 察看结果树

      image-20220324000809324

  6. 以上，完成了整个配置，可以看下最终结果，两组测试，分别会是一红一绿

    • 判断结果size==1：绿色，上图

      image-20220324001245769

    • 判断结果size==0：红色，上图

      image-20220324001130813

  7. 以上是整个fastjson的beanshell断言的实现

场景二

这里我们使用json-path来进行断言实现，这里采用的json-path的maven如下

<!-- https://mvnrepository.com/artifact/com.jayway.jsonpath/json-path -->
<dependency>
    <groupId>com.jayway.jsonpath</groupId>
    <artifactId>json-path</artifactId>
    <version>2.7.0</version>
</dependency>

  • 这里说明一下,和[场景一](# 场景一)唯一的区别就在于第5步，所以这里我们只做对第5步骤的演示

  • 重点：这里必须引入json-path包，放置在jmeter下面，另外jmeter不支持直接引用·json-path的静态方法，所以只能绕弯路了，如果有人知道，也可以告诉我怎么在beanshell中引入

    1. 这里必须去实现一个class文件，小弟能力有限，不晓得怎么引入 .java文件，索引只能用反编译之后的class文件了

      
import com.jayway.jsonpath.JsonPath;
import com.jayway.jsonpath.internal.ParseContextImpl;

public class JsonUtil {
	
	//public static void main(String[] args) {
	//	String response = "[\n"
	//			+ "  {\n"
	//			+ "    \"epoch\" : \"1648050037\",\n"
	//			+ "    \"timestamp\" : \"15:40:37\",\n"
	//			+ "    \"cluster\" : \"elasticsearch\",\n"
	//			+ "    \"status\" : \"yellow\",\n"
	//			+ "    \"node.total\" : \"1\",\n"
	//			+ "    \"node.data\" : \"11\",\n"
	//			+ "    \"shards\" : \"143\",\n"
	//			+ "    \"pri\" : \"143\",\n"
	//			+ "    \"relo\" : \"0\",\n"
	//			+ "    \"init\" : \"0\",\n"
	//			+ "    \"unassign\" : \"2\",\n"
	//			+ "    \"pending_tasks\" : \"0\",\n"
	//			+ "    \"max_task_wait_time\" : \"-\",\n"
	//			+ "    \"active_shards_percent\" : \"98.6%\"\n"
	//			+ "  }\n"
	//			+ "]";
	//
	//	ParseContextImpl parseContext = new ParseContextImpl();
	//	Object read = JsonPath.read(response, "$.*.cluster");
	//	//Object read1 = parseContext.parse(read).read("[0]");
	//	//boolean elasticsearch = Objects.equals(read1, "elasticsearch");
	//	//System.out.println(elasticsearch);
	//	JsonUtil jsonUtil = new JsonUtil();
	//	String data = jsonUtil.getData(response, "$.*.cluster");
	//	String data1 = jsonUtil.getData(data, "[0]");
	//	boolean elasticsearch = jsonUtil.equals(data1, "elasticsearch");
	//	System.out.println(elasticsearch);
	//
	//
	//}
	
	
	public String getData(String json, String jsonPath) {
		Object read = JsonPath.read(json, jsonPath);
		
		return read == null ? "" : read.toString();
	}
	
	public boolean equals(Object obj1, Object obj2) {
		return obj1.equals(obj2);
	}
}

    2. beanshell断言脚本如下：

      #我把JsonUtil.class放在D盘下面
addClassPath("D:\\");
import JsonUtil;
String response = prev.getResponseDataAsString();
log.info("msg value:{}", response);
JsonUtil jsonUtil = new JsonUtil();
String data = jsonUtil.getData(response, "$.*.cluster");
String data1 = jsonUtil.getData(data,"[0]");
boolean elasticsearch = jsonUtil.equals(data1, "elasticsearch");
log.info("value:{}",elasticsearch);
if (elasticsearch) {
	Failure = false;
	FailureMessage = "交易成功！";
	
} else {
	Failure = true;
	FailureMessage = "交易失败！";
}

    • 这里执行结果就能发现结果是对的

    最后附上jmx内容，希望有人可以用到

    <?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.4.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="事件一（一级目录）" enabled="true">
      <stringProp name="TestPlan.comments">测试fastjson解析 最终结果判断 size==1 为正确</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>
      <stringProp name="TestPlan.user_define_classpath">D:\software\apache-jmeter-5.4.3\lib,D:\software\apache-jmeter-5.4.3\lib\ext\JsonPath.jar</stringProp>
    </TestPlan>
    <hashTree>
      <SetupThreadGroup guiclass="SetupThreadGroupGui" testclass="SetupThreadGroup" testname="线程组（二级目录）" 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>
      </SetupThreadGroup>
      <hashTree>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="请求（3级目录）" 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">locahost</stringProp>
          <stringProp name="HTTPSampler.port">9200</stringProp>
          <stringProp name="HTTPSampler.protocol"></stringProp>
          <stringProp name="HTTPSampler.contentEncoding"></stringProp>
          <stringProp name="HTTPSampler.path">_cat/health?format=json</stringProp>
          <stringProp name="HTTPSampler.method">GET</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>
          <BeanShellAssertion guiclass="BeanShellAssertionGui" testclass="BeanShellAssertion" testname="BeanShell断言（四级目录）" enabled="true">
            <stringProp name="BeanShellAssertion.query">import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;


String response = prev.getResponseDataAsString();
JSONArray objects = JSON.parseArray(response);
int length = objects.size();
log.info(&quot;msg value:{}&quot;, length);
if (length == 1) {
	Failure = false;
	FailureMessage = &quot;交易成功！&quot;;
	
} else {
	Failure = true;
	FailureMessage = &quot;交易失败！&quot;;
}</stringProp>
            <stringProp name="BeanShellAssertion.filename"></stringProp>
            <stringProp name="BeanShellAssertion.parameters"></stringProp>
            <boolProp name="BeanShellAssertion.resetInterpreter">false</boolProp>
          </BeanShellAssertion>
          <hashTree/>
          <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="察看结果树（四级目录）" 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>true</fieldNames>
                <responseHeaders>false</responseHeaders>
                <requestHeaders>false</requestHeaders>
                <responseDataOnError>false</responseDataOnError>
                <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
                <assertionsResultsToSave>0</assertionsResultsToSave>
                <bytes>true</bytes>
                <sentBytes>true</sentBytes>
                <url>true</url>
                <threadCounts>true</threadCounts>
                <idleTime>true</idleTime>
                <connectTime>true</connectTime>
              </value>
            </objProp>
            <stringProp name="filename"></stringProp>
          </ResultCollector>
          <hashTree/>
        </hashTree>
        <AuthManager guiclass="AuthPanel" testclass="AuthManager" testname="HTTP授权管理器（3级目录）" enabled="true">
          <collectionProp name="AuthManager.auth_list">
            <elementProp name="" elementType="Authorization">
              <stringProp name="Authorization.url"></stringProp>
              <stringProp name="Authorization.username">1111</stringProp>
              <stringProp name="Authorization.password">111</stringProp>
              <stringProp name="Authorization.domain"></stringProp>
              <stringProp name="Authorization.realm"></stringProp>
            </elementProp>
          </collectionProp>
          <boolProp name="AuthManager.controlledByThreadGroup">false</boolProp>
        </AuthManager>
        <hashTree/>
      </hashTree>
      <SetupThreadGroup guiclass="SetupThreadGroupGui" testclass="SetupThreadGroup" testname="线程组（二级目录）" enabled="true">
        <stringProp name="TestPlan.comments">json-path使用</stringProp>
        <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>
      </SetupThreadGroup>
      <hashTree>
        <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="请求（3级目录）" 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">ip</stringProp>
          <stringProp name="HTTPSampler.port">9200</stringProp>
          <stringProp name="HTTPSampler.protocol"></stringProp>
          <stringProp name="HTTPSampler.contentEncoding"></stringProp>
          <stringProp name="HTTPSampler.path">_cat/health?format=json</stringProp>
          <stringProp name="HTTPSampler.method">GET</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>
          <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="察看结果树（四级目录）" 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>true</fieldNames>
                <responseHeaders>false</responseHeaders>
                <requestHeaders>false</requestHeaders>
                <responseDataOnError>false</responseDataOnError>
                <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
                <assertionsResultsToSave>0</assertionsResultsToSave>
                <bytes>true</bytes>
                <sentBytes>true</sentBytes>
                <url>true</url>
                <threadCounts>true</threadCounts>
                <idleTime>true</idleTime>
                <connectTime>true</connectTime>
              </value>
            </objProp>
            <stringProp name="filename"></stringProp>
          </ResultCollector>
          <hashTree/>
          <BeanShellAssertion guiclass="BeanShellAssertionGui" testclass="BeanShellAssertion" testname="BeanShell断言（四级目录）" enabled="true">
            <stringProp name="BeanShellAssertion.query">addClassPath(&quot;D:\\&quot;);
import JsonUtil;
String response = prev.getResponseDataAsString();
log.info(&quot;msg value:{}&quot;, response);
JsonUtil jsonUtil = new JsonUtil();
String data = jsonUtil.getData(response, &quot;$.*.cluster&quot;);
String data1 = jsonUtil.getData(data,&quot;[0]&quot;);
boolean elasticsearch = jsonUtil.equals(data1, &quot;elasticsearch&quot;);
log.info(&quot;value:{}&quot;,elasticsearch);
if (elasticsearch) {
	Failure = false;
	FailureMessage = &quot;交易成功！&quot;;
	
} else {
	Failure = true;
	FailureMessage = &quot;交易失败！&quot;;
}</stringProp>
            <stringProp name="BeanShellAssertion.filename"></stringProp>
            <stringProp name="BeanShellAssertion.parameters"></stringProp>
            <boolProp name="BeanShellAssertion.resetInterpreter">false</boolProp>
          </BeanShellAssertion>
          <hashTree/>
        </hashTree>
        <AuthManager guiclass="AuthPanel" testclass="AuthManager" testname="HTTP授权管理器（3级目录）" enabled="true">
          <collectionProp name="AuthManager.auth_list">
            <elementProp name="" elementType="Authorization">
              <stringProp name="Authorization.url"></stringProp>
              <stringProp name="Authorization.username">1111</stringProp>
              <stringProp name="Authorization.password">1111</stringProp>
              <stringProp name="Authorization.domain"></stringProp>
              <stringProp name="Authorization.realm"></stringProp>
            </elementProp>
          </collectionProp>
          <boolProp name="AuthManager.controlledByThreadGroup">false</boolProp>
        </AuthManager>
        <hashTree/>
      </hashTree>
    </hashTree>
  </hashTree>
</jmeterTestPlan>
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