服务器端：
public class UDPServer{
public static void main(String[] args) throws Exception{
byte buf[] = new byte[1024];
DatagramPacket dp = new DatagramPacket(buf,buf.length);
DatagramSocket ds = new DatagramSocket(5678);
while(true){
ds.receive(dp);
System.out.println(new String(buf,0,dp.getLength()));
}
}
}
客户端：
import java.net.*; import java.io.*;
public class UDPClient{
public static void main(String[] args) throws Exception{
byte[] buf = (new String("Hello Server!")).getBytes();
DatagramPacket dp = new DatagramPacket(buf,buf.length, new InetSocketAddress("127.0.0.1",5678));
DatagramSocket ds = new DatagramSocket(4567);
ds.send(dp);
ds.close();
}
}
