由于项目中还有其他程序，我是单独启动了一个线程来监听数据

java">public class TestUDPReceive implements Runnable{

    // 创建数据包传输对象DatagramSocket绑定端口号
    DatagramSocket ds;
    //创建字节数据
    byte[] data = new byte[1024];
    // 创建数据包对象，传递字节数组
    DatagramPacket dp;

    public TestUDPReceive(int port){
        try{
            ds = new DatagramSocket(port);
            dp = new DatagramPacket(data, data.length);
        }catch (SocketException e) {
            e.printStackTrace();
        }
    }


    @Override
    public void run() {
        while (true) {
            try {
                ds.receive(dp);
                //获取发送端的IP地址对象
                String ip = dp.getAddress().getHostAddress();
                int port = dp.getPort();

                //获取接收到的字节个数
                int length = dp.getLength();
                for(int i = 0;i < length;i++){
                    System.out.print(data[i] + ",");
                }
                System.out.println();
                System.out.println(ip + "-----------" + port + data.length);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

调用方法：

Thread thread = new Thread(new TestUDPReceive(8888));
thread.start();