Jmeter 使用-JAVA请求

1.jmeter测试脚本，有两种方式。

• 实现JavaSamplerClient接口
• 继承AbstractJavaSamplerClient抽象类

本次使用实现JavaSamplerClient接口方式

2.如图，需要重写四个方法

@Override
    public void setupTest(JavaSamplerContext javaSamplerContext) {
        
    }

    @Override
    public SampleResult runTest(JavaSamplerContext javaSamplerContext) {
        return null;
    }

    @Override
    public void teardownTest(JavaSamplerContext javaSamplerContext) {

    }

    @Override
    public Arguments getDefaultParameters() {
        return null;
    }

setupTest 启动时，需要做的处理

getDefaultParameters 传参

runTest方法体

teardownTest结束时，需要做的处理

 3.因为需要在jmeter中进行参数化，所以需要getDefaultParameters 方法进行传参

    // 这个方法是用来自定义java方法入参的。
    // params.addArgument("applyAmount", "966100000000");表示入参名字叫applyAmount，默认值为966100000000。
    //设置可用参数及它的默认值；
    public Arguments getDefaultParameters() {
        Arguments params = new Arguments();
        params.addArgument("applyAmount", "966100000000");
        return params;
    }

  左侧是代码中参数获取，右侧是jmeter页面输入参数

4.runTest中进行业务的代码实现或者调用实现方法即可

 //开始测试，从javaSamplerContext参数可以获得参数值；
    public SampleResult runTest(JavaSamplerContext javaSamplerContext) {
        String applyAmount = javaSamplerContext.getParameter("applyAmount");
        String url = "http://172.28.38.81:40505/czCredit/v1/repaychargeplan/repayTrial";
        System.out.println("[Test Case] url = " + url);
        // 必填
        String productCode="A3";                                //产品编码 信贷核心表product_term.loan_product_code
        String applyDate="2018-08-13";                            //申请日期
        //选填
        String buyInsurance="1";                                //是否购买保险 1是 0否
        String channelCode="O20170809100414";                   //渠道编码

        Map<String,Object> paraMap = new HashMap<String, Object>();
        paraMap.put("productCode",productCode);
        paraMap.put("applyDate",applyDate);
        paraMap.put("applyAmount",applyAmount);
        paraMap.put("buyInsurance",buyInsurance);
        paraMap.put("channelCode",channelCode);
        System.out.println("[request Data]请求参数 paraMap = " + JSONObject.toJSONString(paraMap));

        Map<String, String> headers = new HashMap<String, String>();
        headers.put("appId", "100");
        headers.put("t",t);
        headers.put("X-Real-IP","127.0.0.1");

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(url);
        // 构造 Header
        Iterator i$ = headers.keySet().iterator();
        while (i$.hasNext()) {
            String header = String.valueOf(i$.next());
            httpPost.setHeader(header, String.valueOf(headers.get(header)));
        }
        // 构造 Body
        Iterator t$ = paraMap.keySet().iterator();
        while (t$.hasNext()) {
            String body = String.valueOf(t$.next());
            httpPost.setHeader(body, String.valueOf(paraMap.get(body)));
        }
        String signBodyData = HttpUtils.getSignMap(t, paraMap);
        StringEntity requestEntity = new StringEntity(signBodyData, Consts.UTF_8);
        httpPost.setEntity(requestEntity);

        CloseableHttpResponse httpResponse = null;
        String responseString = null;
        String responseMessage = null;
        String status = null;
        String info = null;
        String result = null;
        SampleResult sampleResult = new SampleResult();

        try {
            httpResponse = httpClient.execute(httpPost);
            HttpEntity responseEntity = httpResponse.getEntity();
            if (responseEntity != null && SC_OK == httpResponse.getStatusLine().getStatusCode()) {
                responseString = EntityUtils.toString(responseEntity, Charset.forName("UTF-8"));
                System.out.println("[Test Case] responseString = " + responseString);
                responseMessage = String.valueOf(JSONPath.eval(JSON.parseObject(responseString),"$message"));
                System.out.println("[Test Case] responseMessage = " + responseMessage);
                info = String.valueOf(JSONPath.eval(JSON.parseObject(responseString),"$info"));
                System.out.println("[Test Case] responseMessage = " + info);
                status = String.valueOf(JSONPath.eval(JSON.parseObject(responseString),"$status"));
                System.out.println("[Test Case] status = " + status);
                result = String.valueOf(JSONPath.eval(JSON.parseObject(responseString),"$result"));
                System.out.println("[Test Case] result = " + result);
            }
            EntityUtils.consume(requestEntity);
            EntityUtils.consume(responseEntity);
            httpResponse.close();
            httpClient.close();

            sampleResult.setSampleLabel(getClass().getName());  //设置标签
            sampleResult.sampleStart();
            sampleResult.setResponseCode(String.valueOf(httpResponse.getStatusLine().getStatusCode())); //设置响应码
            sampleResult.setResponseMessage(responseMessage);   //设置响应信息
            sampleResult.setResponseData(responseString,"utf-8");//设置响应数据
            sampleResult.setSamplerData(paraMap.toString());//设置请求参数
            sampleResult.setDataType(SampleResult.TEXT);//设置数据类型
            if("0000".equals(status) && "success".equals(info) && null != result){
                sampleResult.setSuccessful(true);//设置结果成功
            }else{
                sampleResult.setSuccessful(false);//设置结果成功
            }
        }catch (Exception e){
            sampleResult.setSuccessful(false);
            sampleResult.setResponseMessage(e.toString());
            e.printStackTrace();
        }finally {
            sampleResult.sampleEnd();
            System.out.println("[Test Case] 接口 " + getClass().getName() + " 测试完毕.");
        }
        return sampleResult;
    }

　　

5.代码写好后，将代码进行打包操作，输出jar包，具体操作如下：

1）右键点击工程，选择open Module Settings，进入页面

 2）选择Artifacts->JAR->From modules with dependencies

 3)弹出对话框，点击OK，页面显示jar包的输出路径。点击OK，配置完成

4)在idea菜单栏，点击Build->BuildArtifacts->

5)到指定路径 即可获取jar包

6)jmeter添加java请求

 给jmeter指定jar包路径：进入jmeter/bin下，找到jmeter.properties文件，修改search_paths参数，参数值为jar包所在路径，可以配置多个，用;隔开，如图

 创建线程组->创建Java请求->在jira请求中选择类名称，如图，添加参数->生成脚本

7)linux上执行脚本

a.linux上安装jmeter

   将windows上的zip包直接放到linux上

   进入bin目录，chmod 777 jmeter

   修改环境变量：  

# vim /etc/profile
export PATH=/opt/apache-jmeter-3.3/bin/:$JAVA_HOME/bin:$PHP_HOME/bin:$PATH

# source /etc/profile 使改动生效　

b.在linux的jmeter中导入jar包，执行命令:

脚本执行命令：jmeter -n -t /opt/jmx/push5000.jmx -l log.jtl

-n 非 GUI 模式 -> 在非 GUI 模式下运行 JMeter

-t 测试文件 -> 要运行的 JMeter 测试脚本文件

-l 日志文件 -> 记录结果的文件

注意：
jmeter需要jdk1.8以上版本，否则执行脚本命令时，会报错：
Error: Java version is too low to run JMeter. Needs at least Java >= 1.8.0.
解决办法：
升级即可