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