Problem with Simple TimeServer app using UDP
We have a Server setup in my Distributed apps class which we are meant to write a client program that sends a DatagramPacket to the server and then receives back a packet that has the time and date. We seem to be doing everything correctly but the behavior we are receiving is not what we want. We send a packet that has a 512 byte buffer, and receive back data of length 512 bytes, we then try to make that buffer a string and then simply display it. Here is what we have:
my Declarations:
......
private DatagramSocket socket;
private byte[] data;
private DatagramPacket packet;
.....
Constructor:
....
address = InetAddress.getByName(ipTextField.getText());
try{
socket = new DatagramSocket();
packet = new DatagramPacket(data,512,address,port);
//socket.connect(address, port);
}catch(IOException e){};
.......
//THIS IS WHERE THE ACTUAL WORK IS PERFORMED//
public void actionPerformed(ActionEvent e){
if(e.getSource()==goButton){
try{
socket.send(packet);
byte[] buffer = new byte[512];
DatagramPacket receivePacket = new DatagramPacket(buffer,512);
socket.receive(packet);
buffer = packet.getData();
String date = new String(buffer);
System.out.println("buffer: " + date);
addressInformation.setText(date);
}catch(IOException ex){System.out.println("Error" + ex);};
}
}
This is what the System.out.println fo the date gives us:
buffer: Fri Feb 09 11:59:05 CST 2007[FROM HERE ON IS JUNK CHARACTERS REPEATING]
The GUI output is nothing but the square ascii character, no date is shown (this might be because it is filled with these squares).
