Question

I created a client in Java and I want simply to send some data to my server that is in C#.

The problem is that if I write in the client for example hello, I get only the first letter. In the byte array there is only one element.

I guess there is some problem with the server side because in my server in JAVA works everything fine so the client in JAVA works fine.

Does anybody see any problem?

Thank you in advance.

Answer 1

problem is prabably in java side because your listener works fine.
I copy pasted your listener code in a test application.
Than I created another test applicationand send hello word and I listened it completely.

public static  void sender()
{
  TcpClient client = new TcpClient();
  IPEndPoint serverEndPoint = new IPEndPoint(IPAddress.Parse("192.168.2.236"), 30000);
  client.Connect(serverEndPoint);
  NetworkStream clientStream = client.GetStream();
  ASCIIEncoding encoder = new ASCIIEncoding();
  byte[] buffer = encoder.GetBytes("Hello Server!");

  clientStream.Write(buffer, 0, buffer.Length);
  clientStream.Flush();
}


Connection accepted from 192.168.2.236:22811
Recieved...
Hello Server!

Btw, this might be better listener.

public void listener()
    {
  TcpListener tcpListener = new TcpListener(IPAddress.Any, 30000);
  tcpListener.Start();

  TcpClient tcpClient = tcpListener.AcceptTcpClient();
  NetworkStream clientStream = tcpClient.GetStream();

  byte[] message = new byte[4096];
  int bytesRead;

  while (true)
  {
    bytesRead = 0;

    try
    {
      //blocks until a client sends a message
      bytesRead = clientStream.Read(message, 0, 4096);
    }
    catch
    {
      //a socket error has occured
      break;
    }

    if (bytesRead == 0)
    {
      //the client has disconnected from the server
      break;
    }

    //message has successfully been received
    ASCIIEncoding encoder = new ASCIIEncoding();
    Console.Write(encoder.GetString(message, 0, bytesRead));
  }

  tcpClient.Close();
}