主要知識點：

• 不能緩存服務器響應，一般用于抓包
• 相較于HttpUrlConnection來說，不需要關心各種輸入輸出流的轉換
• 步驟：獲取HttpUrlConnection，獲取HttpGet、HttpPost、execute獲取響應（判斷狀態(tài)碼）、對響應結果（Entity）進行轉換
• HttpPost/HttpGet.setHeader設置請求頭，從response獲取cookie等響應頭信息

源碼：

public class HttpClientRequest {

        public String getData(String path) throws Exception{
                                
                    HttpClient client = new DefaultHttpClient();
                    HttpGet httpGet = new HttpGet(path);
                    
                    HttpResponse response = client.execute(httpGet);
                    
                    if(response.getStatusLine().getStatusCode()==200){
                        HttpEntity entity = response.getEntity();
                        String data = EntityUtils.toString(entity,"utf-8");
                        return data;
                    }                   
            
            return null;
        }
        
        public String postData(String path,List<NameValuePair> parameters) throws Exception{
            
            HttpClient client = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(path);
                        
            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(parameters);
            httpPost.setEntity(entity);
            
            HttpResponse response = client.execute(httpPost);
            if(response.getStatusLine().getStatusCode()==200){
                HttpEntity responseEntity = response.getEntity();
                String data = EntityUtils.toString(responseEntity,"utf-8");
                return data;
            }
            return null;
        }
        
        
}

調用：

new Thread(){
            public void run() {             
                
                try {
                    HttpClientRequest hcr = new HttpClientRequest();
                    
                    /******************GET方式請求*********************/
                    //String str =hcr.getData("http://192.168.1.183/test.php?name=123");
                    
                    /******************POST方式請求*********************/
                    List<NameValuePair> parameters = new ArrayList<NameValuePair>();
                    parameters.add(new BasicNameValuePair("name", "xiaoming"));
                    
                    String str = hcr.postData("http://192.168.1.183/test.php",parameters);
                    
                    System.out.println(str);
                    
                } catch (Exception e) {                 
                    e.printStackTrace();
                }
                
            };
}.start();

參考自：http://www.runoob.com/w3cnote/android-tutorial-httpclient.html