Java Http協議處理類，javahttp協議處理

Java Http協議處理類，javahttp協議處理

public class HttpRequest {    public static String doGet(String url,String params) throws Exception{        return null;    }            public static String doPost(String url,String params) throws Exception{        HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();        conn.setRequestMethod("POST");        conn.setDoOutput(true);        conn.setDoInput(true);//        conn.setRequestProperty("Content-type", "application/x-www-form-urlencoded");//        conn.setRequestProperty("Connection", "Close");//        conn.setRequestProperty("Content-length", String.valueOf(params.length()));//        conn.connect();        OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");        out.write(params);        out.flush();        out.close();                InputStreamReader r = new InputStreamReader(conn.getInputStream(), "UTF-8");        BufferedReader reader = new BufferedReader(r);        String line = null;        StringBuffer sb = new StringBuffer();        while ((line = reader.readLine()) != null)        {            sb.append(line);        }        return sb.toString();    }}