当客户端与服务器断开连接时，将未解码的消息从webSocket客户端获取到服务器

Question

Click this for Image result attached 我正在设置服务器（Java），客户端将是webApp（WebSocket）。当客户端断开与服务器的连接时，它将发送无法编码的数据。

PTR

//这是客户端代码

public final class MyServer implements Runnable{

    public void run(){
        InputStream inputStream = null;;
        OutputStream outputStream = null;

        BufferedReader bufferedReader = null;

        try{
            server = new ServerSocket(tcpPort);

            while(isRunning){
                clientSocket = server.accept(); //waits until a client connects


                inputStream  = clientSocket.getInputStream();
                outputStream  = clientSocket.getOutputStream();

                doHandShakeToInitializeWebSocketConnection(inputStream, outputStream);

                printInputStream(inputStream);

            }//while end        
        }catch(final Exception e){
            logger.log(LogLevel.SEVERE, "TCP server error", e);
            System.out.println(" catch exception in server>>>");
            e.printStackTrace();

            unsetIsRunning();
        }finally{

            if(null != outputStream){
                try {
                    System.out.println(">>> closing outputStream");
                    outputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            if(null != inputStream){
                try {
                    System.out.println(">>> closing inputStream");
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            if(null != clientSocket){
                try {
                    System.out.println(">>> closing clientSocket");
                    clientSocket.close();
                    server.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }

    //this is how message from client is decoded    
    private void printInputStream(InputStream inputStream) throws IOException { 
        int len = 0;            
        byte[] b = new byte[1024];
        //rawIn is a Socket.getInputStream();
        int x=0;
        while(isRunning){
            System.out.println("inside while x is " + x++);
            len = inputStream.read(b);
            if(len!=-1){

                byte rLength = 0;
                int rMaskIndex = 2;
                int rDataStart = 0;
                //b[0] is always text in my case so no need to check;
                byte data = b[1];
                byte op = (byte) 127;
                rLength = (byte) (data & op);

                if(rLength==(byte)126) rMaskIndex=4;
                if(rLength==(byte)127) rMaskIndex=10;

                byte[] masks = new byte[4];

                int j=0;
                int i=0;
                for(i=rMaskIndex;i<(rMaskIndex+4);i++){
                    masks[j] = b[i];
                    j++;
                }

                rDataStart = rMaskIndex + 4;
                int messLen = len - rDataStart;
                byte[] message = new byte[messLen];

                for(i=rDataStart, j=0; i<len; i++, j++){
                    message[j] = (byte) (b[i] ^ masks[j % 4]);
                }

                b = new byte[1024];

                System.out.println("[][][] Printing from inputStream : " + new String(message)); 
                listener.eventReceived(new String(message));

            }
        }

    }
}

下面是我单击客户端断开连接按钮后的结果。请注意所附结果emage中的“第一个”字符。我不确定解码代码是否错误。

[] [] []从inputStream打印：è工作完成