HttpClient在HTTP协议接口测试中的使用

TTP协议的接口测试中，使用到最多的就是GET请求与POST请求，其中POST请求有FORM参数提交请求与RAW请求，下面我将结合HttpClient来实现一下这三种形式：

一.GET请求: GET请求时，参数一般是写在链接上的，代码如下：

 public void get(String url){
     CloseableHttpClient httpClient = null;
     HttpGet httpGet = null;
     try {
         httpClient = HttpClients.createDefault();
         RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(20000).setConnectTimeout(20000).build();
         httpGet = new HttpGet(url);
         httpGet.setConfig(requestConfig);
         CloseableHttpResponse response = httpClient.execute(httpGet);
         HttpEntity httpEntity = response.getEntity();
         System.out.println(EntityUtils.toString(httpEntity,"utf-8"));
     } catch (ClientProtocolException e) {
         e.printStackTrace();
     } catch (IOException e) {
         e.printStackTrace();
     }finally{
         try {
             if(httpGet!=null){
                 httpGet.releaseConnection();
             }
             if(httpClient!=null){
                 httpClient.close();
             }
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }

二. POST请求的表单提交方式,代码如下:

 public void post(String url, Map<String, String> params){
     CloseableHttpClient httpClient = null;
     HttpPost httpPost = null;
     try {
         httpClient = HttpClients.createDefault();
         RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(20000).setConnectTimeout(20000).build();
         httpPost = new HttpPost(url);
         httpPost.setConfig(requestConfig);
         List<NameValuePair> ps = new ArrayList<NameValuePair>();
         for (String pKey : params.keySet()) {
             ps.add(new BasicNameValuePair(pKey, params.get(pKey)));
         }
         httpPost.setEntity(new UrlEncodedFormEntity(ps));
         CloseableHttpResponse response = httpClient.execute(httpPost);
         HttpEntity httpEntity = response.getEntity();
         System.out.println(EntityUtils.toString(httpEntity,"utf-8"));
     } catch (ClientProtocolException e) {
         e.printStackTrace();
     } catch (IOException e) {
         e.printStackTrace();
     }finally{
         try {
             if(httpPost!=null){
                 httpPost.releaseConnection();
             }
             if(httpClient!=null){
                 httpClient.close();
             }
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }

三. POST请求的RAW参数传递:

 public void post(String url, String body){
     CloseableHttpClient httpClient = null;
     HttpPost httpPost = null;
     try {
         httpClient = HttpClients.createDefault();
         RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(20000).setConnectTimeout(20000).build();
         httpPost = new HttpPost(url);
         httpPost.setConfig(requestConfig);
         httpPost.setEntity(new StringEntity(body));
         CloseableHttpResponse response = httpClient.execute(httpPost);
         HttpEntity httpEntity = response.getEntity();
         System.out.println(EntityUtils.toString(httpEntity,"utf-8"));
     } catch (ClientProtocolException e) {
         e.printStackTrace();
     } catch (IOException e) {
         e.printStackTrace();
     }finally{
         try {
             if(httpPost!=null){
                 httpPost.releaseConnection();
             }
             if(httpClient!=null){
                 httpClient.close();
             }
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }

原文：http://www.cnblogs.com/zhangfei