Outubro 2008
Prof. Ismael H. F. Santos
- ismael@tecgraf.puc-rio.br
2
TCP client
makes connection to server, sends
request and receives reply
import java.net.*;
import java.io.*;
public
class TCPClient {
public static void main (String args[]) {
// arguments supply message and hostname of destination
Socket s = null;
try{
int serverPort = 7896;
s = new
Socket(args[1], serverPort);
DataInputStream in = new DataInputStream(
s.getInputStream());
DataOutputStream out = new DataOutputStream(
s.getOutputStream());
out.writeUTF(args[0]); // UTF is a string encoding
String data = in.readUTF();
System.out.println("Received: "+ data) ;
} catch (UnknownHostException e){
System.out.println("Sock:"+e.getMessage());
} catch (EOFException
e){System.out.println("EOF:"+e.getMessage());
} catch (IOException
e){System.out.println("IO:"+e.getMessage());}
} finally { if(s!=null)
try
{s.close();
}catch
(IOException e){System.out.println("close:"+e.getMessage());}}
}
}