java HttpRequest方法

 

   

    

   
   

    

     /**
    
   

   

    

   
   

    

          * http调用
    
   

   

    

   
   

    

          *
    
   

   

    

   
   

    

          * @param httpUrl :请求接口
    
   

   

    

   
   

    

          * @param httpArg :参数
    
   

   

    

   
   

    

          * @return 返回结果
    
   

   

    

   
   

    

          */
    
   

   

    

   
   

    
    
     public static String httpRequest(String httpUrl, String httpArg) {
    
   

   

    

   
   

    

             BufferedReader reader = 
     null;
    
   

   

    

   
   

    

             String result = 
     null;
    
   

   

    

   
   

    

             StringBuffer sbf = 
     new StringBuffer();
    
   

   

    

   
   

    

             httpUrl = httpUrl + 
     "?" + httpArg;
    
   

   

    

   
   

    
 
    
   

   

    

   
   

    
        
     try {
    
   

   

    

   
   

    

                 URL url = 
     new URL(httpUrl);
    
   

   

    

   
   

    

                 HttpURLConnection connection = (HttpURLConnection) url
    
   

   

    

   
   

    

                         .openConnection();
    
   

   

    

   
   

    

                 connection.setConnectTimeout(
     3000);
     //超时时间，单位毫秒，3000是3秒
    
   

   

    

   
   

    

                 connection.setReadTimeout(
     3000);
    
   

   

    

   
   

    

                 connection.setRequestMethod(
     "GET");
    
   

   

    

   
   

    
            
     // 填入apikey到HTTP header（百度接口）
    
   

   

    

   
   

    
            
     //connection.setRequestProperty("apikey", "11111");
    
   

   

    

   
   

    

                 connection.connect();
    
   

   

    

   
   

    

                 InputStream is = connection.getInputStream();
    
   

   

    

   
   

    

                 reader = 
     new BufferedReader(
     new InputStreamReader(is, 
     "UTF-8"));
     //UTF-8
    
   

   

    

   
   

    

                 String strRead = 
     null;
    
   

   

    

   
   

    
            
     while ((strRead = reader.readLine()) != 
     null) {
    
   

   

    

   
   

    

                     sbf.append(strRead);
    
   

   

    

   
   

    

                     sbf.append(
     "\r\n");
    
   

   

    

   
   

    

                 }
    
   

   

    

   
   

    

                 reader.close();
    
   

   

    

   
   

    

                 result = sbf.toString();
    
   

   

    

   
   

    

             } 
     catch (Exception e) {
    
   

   

    

   
   

    

                 e.printStackTrace();
    
   

   

    

   
   

    

             }
    
   

   

    

   
   

    
        
     return result;
    
   

   

    

   
   

    

         }