package 多人聊天;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
public class Gserver implements Runnable {
private int Port = 9999;
private ServerSocket SS;
private Socket socket;
private ArrayList clients = new ArrayList(); //保存客户端线程
public Gserver(){
try{
SS = new ServerSocket(Port);
new Thread(this).start();
}catch(Exception ex){
}
}
public void run(){
try{
while(true){
socket = SS.accept();
ChatThread ct = new ChatThread(socket);
clients.add(ct);
ct.start();
}
}catch(Exception ex){
}
}
class ChatThread extends Thread{
private Socket s;
private InputStream is;
private OutputStream os;
private BufferedReader br;
private PrintStream ps;
public ChatThread(Socket socket) throws Exception{
this.s = socket;
is = this.s.getInputStream();
os = this.s.getOutputStream();
br = new BufferedReader(new InputStreamReader(is));
ps = new PrintStream(os);
}
public void run(){
try{
while(true){
String str = br.readLine();
sendMessage(str);
}
}catch (Exception ex){
}
}
public void sendMessage(String str){
for(int i=0; i<clients.size(); i++){
ChatThread ct = (ChatThread)clients.get(i);
ct.ps.println(str);
}
}
}
public static void main(String[] args){
new Gserver();
}
}
客户端
package 多人聊天;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.InetAddress;
import java.net.Socket;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
public class Gclient extends JFrame implements ActionListener, Runnable {
private Socket socket;
private int Port = 9999;
private InetAddress ip;
private String name;
private JTextArea area = new JTextArea("以下是聊天内容：\n");
private JTextField field = new JTextField("");
public Gclient(){
this.setTitle("客户端");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.add(field,BorderLayout.NORTH);
field.addActionListener(this);
this.add(area, BorderLayout.CENTER);
this.setSize(240, 260);
this.setVisible(true);
name = JOptionPane.showInputDialog("输入昵称：");
try{
ip = InetAddress.getByName("Localhost");
socket = new Socket(ip,Port);
JOptionPane.showMessageDialog(this, "连接成功");
this.setTitle("客户端：" + name);
new Thread(this).start();
}catch (Exception ex){
}
}
public void run(){
try{
while(true){
InputStream is = socket.getInputStream();
BufferedReader bf = new BufferedReader(new InputStreamReader(is));
String str = bf.readLine();
area.append(str + '\n');
}
}catch (Exception ex){
}
}
public void actionPerformed(ActionEvent e){
try{
OutputStream os = socket.getOutputStream();
PrintStream ps = new PrintStream(os);
ps.println(name + "说：" + field.getText());
field.setText("");
}catch (Exception ex){
}
}
public static void main(String[] args) {
new Gclient();
}
}
就是随便输出昵称
数字的：
