UDP通讯demo

要求：使得接受者可以连续接收发送者发送的数据
发送的数据是可变的，如可以从控制台上输入；

public void sendSocket() throws IOException {
        DatagramSocket socket = new DatagramSocket(10001);
        while (true) {
            byte[] bs = new byte[1024];
            DatagramPacket pack = new DatagramPacket(bs, bs.length);
            socket.receive(pack);
            InetAddress adress = pack.getAddress();
            byte[] b = pack.getData();
            int port = pack.getPort();
            System.out.print(adress + "  ");
            System.out.print(port + "  ");
            System.out.println(new String(b, 0, b.length));
        }

 }

//键盘接收数据的发送端
public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String str = null;
        DatagramSocket socket = new DatagramSocket();
        DatagramPacket pack = null;
        byte[] bs = null;
        while ((str = br.readLine()) != null) {
            if (str.equals("finish"))
                break;
            bs = str.getBytes();
            pack = new DatagramPacket(bs, bs.length, InetAddress.getByName("127.0.0.1"), 10001);
            socket.send(pack);
        }
        socket.close();
    }