quoteudpclient.java

《Java TCP/IP应用开发详解》的部分源程序,开发环境为ECLIPSE3.1

package section20;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

public class QuoteUDPClient {

	
	public static void main(String[] args)throws IOException {
		DatagramSocket socket=new DatagramSocket();
		byte[]buf=new byte[256];
		InetAddress address=InetAddress.getByName("127.0.0.1");
		DatagramPacket packet=new DatagramPacket(buf,buf.length,address,1111);
		socket.send(packet);
		packet=new DatagramPacket(buf,buf.length);
		socket.receive(packet);
		String received=new String(packet.getData());
		System.out.println(packet.getAddress().toString());
		System.out.println("Quote:"+received.substring(0,packet.getLength()));
		socket.close();

	}

}