基于UDP的socket聊天室

今天学习了一下利用UDP传输协议进行的socket通讯。

先上代码：

class Send implements Runnable {

	private DatagramSocket ds;

	Send(DatagramSocket ds) {
		this.ds = ds;
	}

	@Override
	public void run() {
		try {
			BufferedReader bufr = new BufferedReader(new InputStreamReader(
					System.in));
			String line = null;
			while ((line = bufr.readLine()) != null) {
				if ("886".equals(line)) {
					break;
				}
				byte[] buf = line.getBytes();
				DatagramPacket dp = new DatagramPacket(buf, buf.length,
						InetAddress.getByName("211.64.154.152"), 10002);
				ds.send(dp);
			}

		} catch (Exception e) {
			throw new RuntimeException("发送端失败");
		}
	}

}

class Rece implements Runnable {

	private DatagramSocket ds;

	Rece(DatagramSocket ds) {
		this.ds = ds;
	}

	@Override
	public void run() {
		try {

			while (true) {
				byte[] buf = new byte[1024];
				DatagramPacket dp = new DatagramPacket(buf, buf.length);
				ds.receive(dp);
				String ip = dp.getAddress().getHostAddress();
				String data = new String(dp.getData(), 0, dp.getLength());
				System.out.println(ip + "::" + data);
			}

		} catch (Exception e) {
			throw new RuntimeException("接收失败");
		}
	}

}

class ChatDemo {

	public static void main(String[] args) {
		try {
			DatagramSocket sendSocket = new DatagramSocket();
			DatagramSocket receSocket = new DatagramSocket(10002);
			new Thread(new Send(sendSocket)).start();
			new Thread(new Rece(receSocket)).start();

		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}

在主函数中，利用DatagramSocket，写出两个线程，一个用于发送，一个用于接收。