如何在外部主机（不是本地主机）上连接Android

Question

我决定连接到外部主机我的应用程序，但不工作。我能怎么做？ 这是个例：

String login_url = "http://***.**.**.**/fileman/**/register.php"; 
    // String login_url = "http://10.0.2.2/code/register.php"; 

    String method = params[0]; 

    if (method.equals("register")) { 


     String name = params[1]; 
     String user_name = params[2]; 
     String user_pass = params[3]; 

     try { 
      URL url = new URL(reg_url); 
      HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); 
      httpURLConnection.setRequestMethod("POST"); 
      httpURLConnection.setDoOutput(true); 
      //httpURLConnection.setDoInput(true); 
      OutputStream OS = httpURLConnection.getOutputStream(); 
      BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(OS, "UTF-8")); 
      String data = URLEncoder.encode("user", "UTF-8") + "=" + URLEncoder.encode(name, "UTF-8") + "&" + 
        URLEncoder.encode("user_name", "UTF-8") + "=" + URLEncoder.encode(user_name, "UTF-8") + "&" + 
        URLEncoder.encode("user_pass", "UTF-8") + "=" + URLEncoder.encode(user_pass, "UTF-8"); 
      bufferedWriter.write(data); 
      bufferedWriter.flush(); 
      bufferedWriter.close(); 
      OS.close(); 
      InputStream IS = httpURLConnection.getInputStream(); 
      IS.close(); 
      //httpURLConnection.connect(); 
      httpURLConnection.disconnect(); 


      ritorno = "Registration Success..."; 
      return ritorno; 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

与本地主机的工作，但是当我使用我的网址不工作。（如果用我在谷歌ADRESS网址他工作）

有什么不好？

Answer 1

您是否应该在URL url = new URL(reg_url)中使用login_url而不是reg_url？我认为reg_url是用别的东西初始化的。