dgmsend.java

来自「client server using socket programing 」· Java 代码 · 共 27 行

// DgmSend.java sends a little UDP message via DatagramPacket

import java.net.*;
import java.io.*;

public class DgmSend
{
  static final int PORT = 3030;

  public static void main(String[] args)
    throws Exception
  {
    String msg =
      (args.length > 0) ? args[0] : "DatagramDemo";
    InetAddress dest =
      InetAddress.getByName( (args.length > 1) ? args[1] : "127.0.0.1" );
    
    DatagramSocket sock = new DatagramSocket();
    byte[] buf = msg.getBytes();
    DatagramPacket pack = new DatagramPacket(buf, buf.length, dest, PORT);

    sock.send(pack);
  }

}