Java TCP流終止

我想從tcp流中讀取客戶端發送的消息。事情是讀完最後一行後，我的readline函數沒有返回null，我無法調試爲什麼，因爲控制點丟失。總之，在讀完最後一行後，readLine函數應該返回null，但我沒有得到任何東西。Java TCP流終止

這是我的代碼是什麼樣子消息

 StringBuffer sipBuffer = null; 
     String lineRead = null; 
     readIn = new BufferedReader(new InputStreamReader(socket.getInputStream())); 
     try { 
       sipBuffer = new StringBuffer(); 
       while ((lineRead = readIn.readLine()) != null) { 
        sipBuffer.append(lineRead); 

        sipBuffer.append("\n"); 
       } 
      } catch (Exception ex) { 
       sipConsole.addText("Error in message: \n"); 
       sipConsole.addText(ex.getMessage()); 
       return; 
      }

格式

String inviteReq = "INVITE sip:" + destIP + "@sip.umsy.edu SIP/2.0" + "\n" 
      + "From: \"" + myName + "\" <sip:" + myIP + "@sip.umsy.edu>" + "\n" 
      + "To: <sip:" + destIP + "@sip.umsy.edu>" + "\n" 
      + "Allow: INVITE, ACK, BYE" + "\r\n";

來源

2010-04-26 changed