Java TCP流终止

我想从tcp流中读取客户端发送的消息。事情是读完最后一行后，我的readline函数没有返回null，我无法调试为什么，因为控制点丢失。总之，在读完最后一行后，readLine函数应该返回null，但我没有得到任何东西。Java TCP流终止

这是我的代码是什么样子消息

 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";

来源

2010-04-26 changed