UDP多线程实现学生教师聊天

学生类

package com.zy.UdpThreadChat;

public class Student {
    
    public static void main(String[] args) throws Exception {
    
        new Thread(new StudentSend(7777,"localhost",9999)).start();
        new Thread(new StudentRecevice(8888,"老师")).start();
    }
}

学生发送：

package com.zy.UdpThreadChat;

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

public class StudentSend implements Runnable{
    
    DatagramSocket socket = null;
    BufferedReader reader = null;

    private int formPort ;//发送端的端口
    private String toIp ;//接收端的地址
    private int toPort ;//接收端的端口

    public StudentSend(int formPort, String toIp, int toPort) {
    
        this.formPort = formPort;
        this.toIp = toIp;
        this.toPort = toPort;
        try {
    
            //创建自己的端口
            socket = new DatagramSocket(formPort);
            //获取键盘输入的内容
            reader = new BufferedReader(new InputStreamReader(System.in));
        } catch (SocketException e) {
    
            e.printStackTrace();
        }
    }
    @Override
    public void run() {
    
        while (true)
        {
    
            try {
    
                String data = reader.readLine();
                DatagramPacket packet = new DatagramPacket(data.getBytes(), 0, data.getBytes().length,new InetSocketAddress(this.toIp,this.toPort));
                socket.send(packet);
                if(data.equals("bye"))
                {
    
                    break;
                }
            }catch (Exception e){
    
                e.printStackTrace();
            }
        }
        socket.close();
    }
}

学生接收：

package com.zy.UdpThreadChat;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;

public class StudentRecevice implements Runnable{
    
    DatagramSocket socket = null;

    private int port;//本身端口
    private String name;//接收到的信息的发送人

    public StudentRecevice(int port, String name) throws SocketException {
    
        this.port = port;
        this.name = name;
        //创建自己的端口
        socket = new DatagramSocket(port);
    }
    @Override
    public void run() {
    
        while (true)
        {
    
            try {
    
                //准备接收包裹
                byte[] bytes = new byte[1024];
                DatagramPacket packet = new DatagramPacket(bytes, 0, bytes.length);
                socket.receive(packet);
                //接收后
                byte[] bytes1 = packet.getData();
                String data = new String(bytes1,0,bytes1.length);
                System.out.println(this.name+":"+data);
                //断开连接条件 bye
                if(data.equals("bye"))
                {
    
                    break;
                }
            }catch (Exception e){
    
                e.printStackTrace();
            }
        }
        socket.close();
    }
}

老师类

package com.zy.UdpThreadChat;

public class Teacher {
    
    public static void main(String[] args) throws Exception {
    
        new Thread(new TeacherSend(8989,"localhost",8888)).start();
        new Thread(new TeacherRecevice(9999,"学生")).start();
    }
}

老师发送：

package com.zy.UdpThreadChat;

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

public class TeacherSend implements Runnable{
    
    DatagramSocket socket = null;
    BufferedReader reader = null;

    private int formPort ;//发送端的端口
    private String toIp ;//接收端的地址
    private int toPort ;//接收端的端口

    public TeacherSend(int formPort, String toIp, int toPort) {
    
        this.formPort = formPort;
        this.toIp = toIp;
        this.toPort = toPort;
        try {
    
            //创建自己的端口
            socket = new DatagramSocket(formPort);
            //获取键盘输入的内容
            reader = new BufferedReader(new InputStreamReader(System.in));
        } catch (SocketException e) {
    
            e.printStackTrace();
        }
    }
    @Override
    public void run() {
    
        while (true)
        {
    
            try {
    
                String data = reader.readLine();
                DatagramPacket packet = new DatagramPacket(data.getBytes(), 0, data.getBytes().length,new InetSocketAddress(this.toIp,this.toPort));
                socket.send(packet);
                if(data.equals("bye"))
                {
    
                    break;
                }
            }catch (Exception e){
    
                e.printStackTrace();
            }
        }
        socket.close();
    }
}

老师接收：

package com.zy.UdpThreadChat;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;

public class TeacherRecevice implements Runnable{
    
    DatagramSocket socket = null;

    private int port;//本身端口
    private String name;//接收到的信息的发送人

    public TeacherRecevice(int port, String name) throws SocketException {
    
        this.port = port;
        this.name = name;
        //创建自己的端口
        socket = new DatagramSocket(port);
    }
    @Override
    public void run() {
    
        while (true)
        {
    
            try {
    
                //准备接收包裹
                byte[] bytes = new byte[1024];
                DatagramPacket packet = new DatagramPacket(bytes, 0, bytes.length);
                socket.receive(packet);
                //接收后
                byte[] bytes1 = packet.getData();
                String data = new String(bytes1,0,bytes1.length);
                System.out.println(this.name+":"+data);
                //断开连接条件 bye
                if(data.equals("bye"))
                {
    
                    break;
                }
            }catch (Exception e){
    
                e.printStackTrace();
            }
        }
        socket.close();
    }
}