本文實例為大家分享了java控制臺實現聊天程序的具體代碼，供大家參考，具體內容如下

發送端

package ip.chat;import java.io.BufferedReader;import java.io.InputStreamReader;import java.net.DatagramPacket;import java.net.DatagramSocket;import java.net.InetSocketAddress;public class TalkSend implements Runnable{ DatagramSocket socket = null; BufferedReader reader = null; private int formIP; private String toIP; private int toPort; public TalkSend(int formIP, String toIP, int toPort) {this.formIP = formIP;this.toIP = toIP;this.toPort = toPort;try { socket = new DatagramSocket(); reader = new BufferedReader(new InputStreamReader(System.in));}catch (Exception e){ e.printStackTrace();} } @Override public void run() {while (true){ try {String data = reader.readLine();byte[] datas = data.getBytes();DatagramPacket packet = new DatagramPacket(datas, 0, datas.length, new InetSocketAddress(this.toIP, this.toPort));socket.send(packet);if (data.equals('bye')){ break;} }catch (Exception e){e.printStackTrace(); }}//關閉socket.close(); }}

服務端

package ip.chat;import java.io.IOException;import java.net.DatagramPacket;import java.net.DatagramSocket;import java.net.SocketException;public class TalkReceive implements Runnable{ DatagramSocket socket = null; private int port; //設置消息來源 private String msgFrom; public TalkReceive(int port ,String msgFrom) {this.port = port;this.msgFrom = msgFrom;try { socket = new DatagramSocket(port);} catch (SocketException e) { e.printStackTrace();} } @Override public void run() {while(true){ try {//準備接收包裹byte[] container = new byte[1024];DatagramPacket packet = new DatagramPacket(container,0,container.length);socket.receive(packet);//接收包裹//斷開連接byte[] data = packet.getData();String receiveData = new String(data, 0, data.length);System.out.println(msgFrom+'：'+receiveData);if (receiveData.equals('bye')){ break;} } catch (IOException e) {e.printStackTrace(); }}socket.close(); }}

學生端代碼

package ip.chat;public class TalkStudent { public static void main(String[] args) {//開啟兩個線程new Thread(new TalkSend(7777,'localhost',9999)).start();new Thread(new TalkReceive(8888,'老師')).start(); }}

教師端代碼

package ip.chat;public class TalkTeacher { public static void main(String[] args) {new Thread(new TalkSend(5555,'localhost',8888)).start();new Thread(new TalkReceive(9999,'學生')).start(); }}

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持好吧啦網。