利用JMeter 的 BeanShell 测试SDK

JMeter中有个BeanShellSampler

截图如下：

顾名思义，就是直接写BeanShell来发起请求，其本质上是java代码，如果import相关的jar包，需要将相关的jar包加入jmeter可以引的路径下。

这里，给出一段示例代码：

import java.io.IOException;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.HashMap;import java.util.LinkedList;import java.util.List;import java.util.Map;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;public static void testHttpClinet(){        HttpClient httpClient = new DefaultHttpClient();        HttpPost httpPost = new HttpPost("http://localhost:8080/TimOne/category/queryCategory.do");        List<NameValuePair> params = new ArrayList<NameValuePair>(); //这句话需要修改为List params = new ArrayList();        params.add(new BasicNameValuePair("type", ""));        params.add(new BasicNameValuePair("page", "1"));        params.add(new BasicNameValuePair("rows", "5"));        UrlEncodedFormEntity entity = null;        try {            entity = new UrlEncodedFormEntity(params,"utf-8");        } catch (UnsupportedEncodingException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        httpPost.setEntity(entity);        try {            HttpResponse httpResponse = httpClient.execute(httpPost);            if(httpResponse.getStatusLine().getStatusCode() == 200){                System.out.println("请求和响应成功");                HttpEntity httpEntity = httpResponse.getEntity();                String response = EntityUtils.toString(httpEntity);                System.out.println(response);            }        } catch (ClientProtocolException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }}testHttpClinet(); //执行方法

上述的BeanShell Sample需要注意的地方有，需要定义一个静态方法，如果需要执行，则直接调用静态方法。

执行testHttpClient()，发现报如下错误：

2017/04/28 23:52:04 INFO  - jmeter.threads.JMeterThread: Threadstarted: Thread Group 1-1

2017/04/28 23:52:04 ERROR -jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval   In file: inline evaluation of: ``importjava.io.IOException; import java.io.UnsupportedEncodingException; import  . . . '' Encountered "=" at line23, column 36.

 2017/04/28 23:52:04 WARN  - jmeter.protocol.java.sampler.BeanShellSampler:org.apache.jorphan.util.JMeterException: Error invoking bsh method: eval In file: inline evaluation of: ``importjava.io.IOException; import java.io.UnsupportedEncodingException; import  . . . '' Encountered "=" at line23, column 36.

也就是报这句话异常：List<NameValuePair> params = new ArrayList<NameValuePair>();

修改来修改去，也发现不了为什么这句话有异常，后来改为：

List params = new ArrayList ();

程序可以成功运行。同理，Map中也不能加具体类型Map<String, String>也不可以。

总结：

BeanShell其实就是让我们自己写Java代码来进行接口调用，当然这种方式可以用来测试SDK。