URL url = new URL(sb.toString());//请求的地址

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        connection.setRequestMethod("POST");//请求方式

        BufferedReader in = new BufferedReader(new InputStreamReader(

                url.openStream()));
　　　　 //返回结果
        String inputline = in.readLine();
　　　　 System.out.println(inputline);