daybcast.txt

利用TCP协议编程（使用SeverSocket和Socket编程）

import java.net.*;
import java.util.*;
public class DayBcast
{
	private DatagramSocket ds;
	private DatagramPacket dp;
	private InetAddress addr;
	public static void main(String[] args) throws Exception
	{
		DayBcast db = new DayBcast("localhost");
		db.go();
	}
	public DayBcast(String target) throws Exception
	{
		addr = ...;//将target转换为InetAddress对象
		ds = ...;//新建的数据报套接字
	}
	public void go() throws Exception
	{
		byte[] buff;
			
		...//循环
		{
			Thread.sleep(1000);//1s间隔
			System.out.println("Sending...");
			...//取得服务器系统当前时间
			buff =...;//将系统时间转换为字节型数组
			dp =...;//构造发送数据报
			...;//发送dp
		}
	}
}