UDP实现循环接收输入

UDP实现循环接收输入

发送端：

package com.example.network;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;

public class ChatSenderDemo01 {
    public static void main(String[] args) throws IOException {
        DatagramSocket socket = new DatagramSocket(6666);
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        while (true) {
            String msg = reader.readLine();
            byte[] dataBytes = msg.getBytes();
            DatagramPacket packet = new DatagramPacket(dataBytes, 0, dataBytes.length, new InetSocketAddress("localhost", 8888));
            socket.send(packet);
            if (msg.equals("bye")) {
                break;
            }
        }


        reader.close();
        socket.close();


    }
}

接收端：

package com.example.network;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;

public class ChatReceiverDemo02 {
    public static void main(String[] args) throws IOException {
        DatagramSocket socket = new DatagramSocket(8888);

        while (true) {
            byte[] msg = new byte[1024];
            DatagramPacket packet = new DatagramPacket(msg, 0, msg.length);
            socket.receive(packet);
            String data = new String(packet.getData(), 0, packet.getLength());
            System.out.println(data);
            if (data.equals("bye")) {
                break;
            }
        }
        socket.close();

    }
}