Java聊天室之实现聊天室服务端功能

         cn.hutoolhutool-core5.6.5

package com.xiaoxuzhu; import cn.hutool.core.io.resource.ResourceUtil; import java.awt.BorderLayout; import java.awt.Frame; import java.awt.Image; import java.awt.MenuItem; import java.awt.PopupMenu; import java.awt.SystemTray; import java.awt.TrayIcon; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.IOException; import java.io.ObjectInputStream; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; import java.net.URL; import java.util.Hashtable; import java.util.Iterator; import java.util.Set; import java.util.Vector; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTextArea; /** * Description: * * @author xiaoxuzhu * @version 1.0 * * 
 * 修改记录: * 修改后版本	        修改人		修改日期			修改内容 * 2022/6/5.1	    xiaoxuzhu		2022/6/5		    Create * 
 * @date 2022/6/5 */ public class ChatServerFrame extends JFrame { private JTextArea ta_info; private ServerSocket server; // 声明ServerSocket对象 private Socket socket; // 声明Socket对象socket private Hashtable map = new Hashtable();// 用于存储连接到服务器的用户和客户端套接字对象 public void createSocket() { try { server = new ServerSocket(9527);// 创建服务器套接字对象 while (true) { ta_info.append("等待新客户连接......\n"); socket = server.accept();// 获得套接字对象 ta_info.append("客户端连接成功。" + socket + "\n"); new ServerThread(socket).start();// 创建并启动线程对象 } } catch (IOException e) { e.printStackTrace(); } } class ServerThread extends Thread { Socket socket; public ServerThread(Socket socket) { this.socket = socket; } public void run() { try { ObjectInputStream ins = new ObjectInputStream(socket .getInputStream()); while (true) { Vector v = null; try { v = (Vector) ins.readObject(); } catch (ClassNotFoundException e) { e.printStackTrace(); } if (v != null && v.size() > 0) { for (int i = 0; i  set = map.keySet();// 获得集合中所有键的Set视图 Iterator keyIt = set.iterator();// 获得所有键的迭代器 while (keyIt.hasNext()) { String receiveKey = keyIt.next();// 获得表示接收信息的键 Socket s = map.get(receiveKey);// 获得与该键对应的套接字对象 PrintWriter out = new PrintWriter(s .getOutputStream(), true);// 创建输出流对象 Iterator keyIt1 = set.iterator();// 获得所有键的迭代器 while (keyIt1.hasNext()) { String receiveKey1 = keyIt1.next();// 获得键，用于向客户端添加用户列表 out.println(receiveKey1);// 发送信息 out.flush();// 刷新输出缓冲区 } } } else if (info.startsWith("退出：")) { key = info.substring(3);// 获得退出用户的键 map.remove(key);// 添加键值对 Set set = map.keySet();// 获得集合中所有键的Set视图 Iterator keyIt = set.iterator();// 获得所有键的迭代器 while (keyIt.hasNext()) { String receiveKey = keyIt.next();// 获得表示接收信息的键 Socket s = map.get(receiveKey);// 获得与该键对应的套接字对象 PrintWriter out = new PrintWriter(s .getOutputStream(), true);// 创建输出流对象 out.println("退出：" + key);// 发送信息 out.flush();// 刷新输出缓冲区 } } else {// 转发接收的消息 key = info.substring(info.indexOf("：发送给：") + 5, info.indexOf("：的信息是："));// 获得接收方的key值,即接收方的用户名 String sendUser = info.substring(0, info .indexOf("：发送给："));// 获得发送方的key值,即发送方的用户名 Set set = map.keySet();// 获得集合中所有键的Set视图 Iterator keyIt = set.iterator();// 获得所有键的迭代器 while (keyIt.hasNext()) { String receiveKey = keyIt.next();// 获得表示接收信息的键 if (key.equals(receiveKey) && !sendUser.equals(receiveKey)) {// 与接受用户相同，但不是发送用户 Socket s = map.get(receiveKey);// 获得与该键对应的套接字对象 PrintWriter out = new PrintWriter(s.getOutputStream(), true);// 创建输出流对象 out.println("MSG:" + info);// 发送信息 out.flush();// 刷新输出缓冲区 } } } } } } } catch (IOException e) { ta_info.append(socket + "已经退出。\n"); } } } public static void main(String args[]) { ChatServerFrame frame = new ChatServerFrame(); frame.setVisible(true); frame.createSocket(); } /** * Create the frame */ public ChatServerFrame() { super(); addWindowListener(new WindowAdapter() { public void windowIconified(final WindowEvent e) { setVisible(false); } }); setTitle("聊天室服务器端"); setBounds(100, 100, 385, 266); final JScrollPane scrollPane = new JScrollPane(); getContentPane().add(scrollPane, BorderLayout.CENTER); ta_info = new JTextArea(); scrollPane.setViewportView(ta_info); //托盘 if (SystemTray.isSupported()){                                      // 判断是否支持系统托盘 URL url= ResourceUtil.getResource("server.png-600",null);         // 获取图片所在的URL ImageIcon icon = new ImageIcon(url);                            // 实例化图像对象 Image image=icon.getImage();                                    // 获得Image对象 TrayIcon trayIcon=new TrayIcon(image);                          // 创建托盘图标 trayIcon.addMouseListener(new MouseAdapter(){                   // 为托盘添加鼠标适配器 public void mouseClicked(MouseEvent e){                     // 鼠标事件 if (e.getClickCount()==2){                              // 判断是否双击了鼠标 showFrame();                                    // 调用方法显示窗体 } } }); trayIcon.setToolTip("系统托盘");                                    // 添加工具提示文本 PopupMenu popupMenu=new PopupMenu();                    // 创建弹出菜单 MenuItem exit=new MenuItem("退出");                           // 创建菜单项 exit.addActionListener(new ActionListener() {                   // 添加事件监听器 public void actionPerformed(final ActionEvent arg0) { System.exit(0);                                     // 退出系统 } }); popupMenu.add(exit);                                        // 为弹出菜单添加菜单项 trayIcon.setPopupMenu(popupMenu);                           // 为托盘图标加弹出菜弹 SystemTray systemTray=SystemTray.getSystemTray();           // 获得系统托盘对象 try{ systemTray.add(trayIcon);                               // 为系统托盘加托盘图标 }catch(Exception e){ e.printStackTrace(); } } } public void showFrame(){ this.setVisible(true);                                              // 显示窗体 this.setState(Frame.NORMAL); } } 

  4.0.0com.xiaoxuzhubasics991.0-SNAPSHOT  cn.hutoolhutool-core5.6.5   maven-assembly-plugin   com.xiaoxuzhu.ChatServerFrame . jar-with-dependenciesfalse  make-assemblypackage single