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java - TCP Socket unable to receive packet


I used code below for receiving messages from a server but it only gets one message like "Hello," but the second message which is "How are you?" is not detected by the application. I tried to fix it but I was not able to.

However, there is not any error.

Here is my code:

new Thread(new Runnable() {
                    @Override
                    public void run() {
                        int available = 0;
                        while (true) {
                            try {
                                available = ClientInPutStream.available();
                                if (available > 0) {
                                    break;
                                }
                            } catch (IOException e) {
                                msg = e.toString();
                                showMSG();
                            }
                        }
                        try {
                            char[] ServerMSG = new char[available];
                            Reader.read(ServerMSG, 0, available);
                            StringBuilder sb = new StringBuilder();
                            sb.append(ServerMSG, 0, available);
                            msg = sb.toString();
                            showMSG();
                        } catch (IOException e) {
                            msg = e.toString();
                            showMSG();
                        }
                    }
                }).start();

Thanks in advance!

EDIT:

I tried code below and I got that need to invoke this thread manually by a button which update text view do you have any solution for this? in order to automate it.

 new Thread(new Runnable() {
                    @Override
                    public void run() {
                        byte[] buffer = new byte[128];  // buffer store for the stream
                        int bytes; // bytes returned from read()
                        try {
                            bytes = ClientInPutStream.read(buffer);
                            byte[] readBuf =  buffer;
                            String strIncom = new String(readBuf, 0, bytes);                 
                            msg2+=strIncom;
                            showmsg();
                        }catch (Exception e){msg=e.toString();showError();}
                        }

                }).start();

Solution

  • It does what it is told to. Your code tells to receive only one message. try new Thread().start(); after showMSG(). Hope this helps.

    solution

     new Thread(new Runnable() {
    
              @Override
              public void run() {
    
                   byte[] buffer = new byte[128];  // buffer store for the stream
                   int bytes; // bytes returned from read()
    
                   try {
                         while (true){ // continuously read buffer
                              bytes = ClientInPutStream.read(buffer);
                              byte[] readBuf = buffer;
                              String strIncom = new String(readBuf, 0, bytes);                 // create string from bytes array
                              msg2 += strIncom;
                              showmsg();
                         }
                    }catch (Exception e){msg=e.toString();showError();}
              }
    
     }).start();