JavaGUI版聊天室

刚接触Java中的GUI编程和网络编程时觉得很有意思，所以就结合了这两个方面并结合IO、多线程的知识，做了一个GUI版的聊天室。

这个聊天室是两端开发，服务器端和客户端

服务器端功能：

开启和关闭服务器
总览聊天室内的聊天内容
监听连接对象
转发给客户端聊天信息

客户端功能：

输入基本信息，服务器IP地址和端口号即可连接服务器。
查看聊天室和接收聊天室的消息记录
查看了聊天室在线成员
给服务器发送聊天信息

开发工具：

eclipse、WindowBuilder插件
顺便附上WindowBuilder快速教程：https://www.jianshu.com/p/232f72f55d79

基本思路：

服务器端：由服务器监听连接，每接收到一个连接就创建一个服务端线程，在服务端线程中，一是读取信息文件，并将读取到的信息发送给客户端，二是开启user线程，用于将此用户添加至在线用户的集合中。
客户端：用户登录完成时，与服务器建立连接，并发送用户输入的用户信息，服务端将聊天信息和连接信息发送给客户端，由客户端接送并显示信息。
目录结构：

效果展示：

基本的User类

package cn.hehewocao_User;public class User {private String username;private String sex;public User() {}public User( String username, String sex) {this.username = username;this.sex = sex;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}
}

服务器监听类：ServerAcceptThread

package cn.hehewocao_Server;import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;import javax.swing.JOptionPane;import cn.hehewocao_ServerTools.ServerTools;
import cn.hehewocao_User.User;
import cn.hehewocao_User.UserThread;public class ServerAcceptThread implements Runnable {private ServerSocket ss;public static ArrayList<Socket> arraySocket = new ArrayList<Socket>();public static ArrayList<String> arrayUser = new ArrayList<String>();public static int i = 1;public ServerAcceptThread(ServerSocket ss) {this.ss = ss;}@Overridepublic void run() {while (true) {try {Socket s = ss.accept();arraySocket.add(s);String IP = s.getInetAddress().getHostAddress();System.out.println("IP:" + IP + "  已连接服务器！");ServerThread st = new ServerThread(s);Thread thread = new Thread(st);thread.start();} catch (IOException e) {JOptionPane.showMessageDialog(null, "服务器接收连接出现异常！");}}}
}

服务器线程类：

package cn.hehewocao_Server;import java.io.IOException;
import java.net.Socket;
import java.util.ArrayList;import javax.swing.JOptionPane;import cn.hehewocao_ServerTools.ServerTools;public class ServerThread implements Runnable {private static Socket socket;private String username;public ServerThread(Socket socket) {this.socket = socket;}@Overridepublic void run() {try {start();} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}public static void start() throws IOException {Socket s = socket;ServerReciveThread srt = new ServerReciveThread(s);Thread rt = new Thread(srt);rt.start();}
}

服务器发送信息线程：ServerReciveThread

package cn.hehewocao_Server;import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.ListIterator;import javax.swing.JOptionPane;import cn.hehewocao_ServerTools.ServerTools;
import cn.hehewocao_User.UserThread;
import cn.hehewocao_Windows.WindowClientChatRoom;
import cn.hehewocao_Windows.WindowServer;public class ServerReciveThread implements Runnable {private Socket socket;public ServerReciveThread(Socket socket) {this.socket = socket;}@Overridepublic void run() {Socket s = socket;try {BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));String ns = ServerAcceptThread.i + "=" + br.readLine();ServerAcceptThread.arrayUser.add(ns);ServerAcceptThread.i++;ServerTools.ServerSendMessage(ServerAcceptThread.arraySocket);// 开启用户连接线程UserThread ut = new UserThread(ServerAcceptThread.arraySocket);Thread t = new Thread(ut);t.start();String Messagestr = null;while ((Messagestr = br.readLine()) != null) {String[] close = Messagestr.split("=");//多增加一个判断，防止下标越界异常if (close.length!=1 && close[1].equals("Socket is closed!")) {ServerAcceptThread.arraySocket.remove(s);ListIterator<String> lit = ServerAcceptThread.arrayUser.listIterator();while (lit.hasNext()) {String[] userinfo = lit.next().split("=");if (userinfo[1].equals(close[0])) {lit.remove();}}UserThread ut1 = new UserThread(ServerAcceptThread.arraySocket);Thread t1 = new Thread(ut1);t1.start();return;}SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 设置日期格式String time = df.format(new Date());String IP = s.getInetAddress().getHostAddress();String displayMessagestr = time + "  " + Messagestr;Messagestr = time + "=" + IP + "=" + Messagestr;writerFile(Messagestr);System.out.println("收到客户端数据：" + Messagestr);WindowServer.infortextArea.append(displayMessagestr);WindowServer.infortextArea.append("\n");//设置光标在末尾WindowServer.infortextArea.setCaretPosition(WindowServer.infortextArea.getText().length());ServerTools.ServerSendMessage(ServerAcceptThread.arraySocket);}} catch (IOException e) {JOptionPane.showMessageDialog(null, "接收数据失败！");}}public boolean writerFile(String str) {try {BufferedWriter bw = new BufferedWriter(new FileWriter("MessageRecord.txt", true));bw.write(str);bw.newLine();bw.flush();bw.close();} catch (IOException e) {e.printStackTrace();return false;}return true;}}

**服务器工具类：ServerTools **

package cn.hehewocao_ServerTools;import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.ArrayList;
import java.util.ListIterator;
import java.util.Vector;import javax.swing.JOptionPane;import cn.hehewocao_Server.ServerAcceptThread;
import cn.hehewocao_User.UserThread;
import cn.hehewocao_Windows.WindowServer;public class ServerTools {public static void ServerSendMessage(ArrayList<Socket> arraySocket) {try {ListIterator<Socket> it = arraySocket.listIterator();while (it.hasNext()) {Socket socket = it.next();Socket s = new Socket(socket.getInetAddress().getHostAddress(), 5555);BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));BufferedReader br = new BufferedReader(new FileReader("MessageRecord.txt"));String message = null;while ((message = br.readLine()) != null) {String[] str = message.split("=");String newMessage = null;try {newMessage = str[0] + "  " + str[2];} catch (Exception e) {ServerAcceptThread.arraySocket.remove(s);UserThread ut1 = new UserThread(ServerAcceptThread.arraySocket);Thread t1 = new Thread(ut1);t1.start();return;}bw.write(newMessage);bw.newLine();bw.flush();}br.close();bw.close();}} catch (IOException e) {JOptionPane.showMessageDialog(null, "服务器发送数据失败！");}}// 服务器发送连接信息public static void ServerSendLink(ArrayList<Socket> arraySocket) {try {ListIterator<Socket> it = arraySocket.listIterator();while (it.hasNext()) {Socket socket = it.next();Socket s = new Socket(socket.getInetAddress().getHostAddress(), 1111);BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));// 获取table内的数据ArrayList<String> array = new ArrayList<String>();for (int i = 0; i < WindowServer.table.getRowCount(); i++) {String info = null;for (int j = 0; j < 4; j++) {if (info == null) {info = (String) WindowServer.table.getValueAt(i, j);} else {info = info + "=" + (String) WindowServer.table.getValueAt(i, j);}}array.add(info);}// 发送数据ListIterator<String> Lit = array.listIterator();while (Lit.hasNext()) {bw.write(Lit.next());bw.newLine();bw.flush();}s.close();}} catch (IOException e) {// JOptionPane.showMessageDialog(null, "服务器发送连接数据失败！");e.printStackTrace();}}public static boolean writerFile() {try {BufferedWriter bw = new BufferedWriter(new FileWriter("MessageRecord.txt"));bw.write("");bw.flush();bw.close();} catch (IOException e) {e.printStackTrace();return false;}return true;}
}

**用户线程类：UserThread **

package cn.hehewocao_User;import java.net.Socket;
import java.util.ArrayList;
import java.util.ListIterator;
import java.util.Vector;import cn.hehewocao_Server.ServerAcceptThread;
import cn.hehewocao_ServerTools.ServerTools;
import cn.hehewocao_Windows.WindowServer;public class UserThread implements Runnable{private static ArrayList<Socket> arraySocket;public UserThread(ArrayList<Socket> arraySocket) {this.arraySocket = arraySocket;}@Overridepublic void run() {countUser();}public static void countUser() {WindowServer.model.setRowCount(0);Vector<Vector> row = new Vector<Vector>();Vector<String> columnNames = new Vector<String>();columnNames.add("连接编号");columnNames.add("连接IP");columnNames.add("昵称");columnNames.add("性别"); System.out.println("共有" + arraySocket.size()  + "个用户连接！");ListIterator<Socket> it = arraySocket.listIterator();int i = 0;while(it.hasNext()) {Socket socket = it.next();  Vector<String> rowData = new Vector<String>();     String[] userinfo = ServerAcceptThread.arrayUser.get(i).split("=");rowData.add(userinfo[0]);rowData.add(socket.getInetAddress().getHostAddress());rowData.add(userinfo[1]);rowData.add(userinfo[2]);row.add(rowData);                       WindowServer.model.setDataVector(row, columnNames);i++;}ServerTools.ServerSendLink(arraySocket);}
}

用户工具类：UserTools

package cn.hehewocao_User;import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;import javax.swing.JOptionPane;public class UserTools {public static ArrayList<User> fileReader(String filename) {ArrayList<User> array = new ArrayList<User>();try {BufferedReader br = new BufferedReader(new FileReader(filename));String info = null;while ((info = br.readLine()) != null) {String[] s = info.split("=");User user = new User(s[1], s[2]);array.add(user);}br.close();} catch (IOException e) {JOptionPane.showMessageDialog(null, "用户文件读取失败！");return null;}return array;}
}

客户端接收聊天记录线程：ClientReciveThread

package cn.hehewocao_Client;import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;import javax.swing.JOptionPane;import cn.hehewocao_Windows.WindowClient;
import cn.hehewocao_Windows.WindowClientChatRoom;public class ClientReciveThread implements Runnable {private Socket socket;public ClientReciveThread(Socket socket) {this.socket = socket;}public void run() {try {//接收服务器的消息记录ServerSocket ss = new ServerSocket(5555);while (true) {Socket s = ss.accept();BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));String message = null;String allMessage = null;while ((message = br.readLine()) != null) {System.out.println(message);if(allMessage == null) {allMessage = message + "\n";}else {allMessage = allMessage + message + "\n";}WindowClientChatRoom.infotextArea.setText(allMessage);//设置光标在末尾WindowClientChatRoom.infotextArea.setCaretPosition(WindowClientChatRoom.infotextArea.getText().length());}}} catch (IOException e) {try {BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));bw.write(WindowClient.name + "=Socket is closed!");bw.flush();socket.close();} catch (IOException e1) {JOptionPane.showMessageDialog(null, "服务器已关闭！");}JOptionPane.showMessageDialog(null, "该程序不支持多开鸭~");System.exit(0);}}}

客户端接收连接信息线程：ClientReciveLinkInfoThread

package cn.hehewocao_Client;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Vector;import javax.swing.JOptionPane;import cn.hehewocao_Windows.WindowClientChatRoom;public class ClientReciveLinkInfoThread implements Runnable {@Overridepublic void run() {WindowClientChatRoom.model.setRowCount(0);try {ServerSocket ss = new ServerSocket(1111);while (true) {Socket s = ss.accept();BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));    String LinkInfo = null;Vector<Vector> row = new Vector<Vector>();Vector<String> columnNames = new Vector<String>();columnNames.add("连接编号");columnNames.add("昵称");columnNames.add("性别");while((LinkInfo = br.readLine()) != null) {Vector<String> rowData = new Vector<String>();String[] info = LinkInfo.split("=");rowData.add(info[0]);rowData.add(info[2]);rowData.add(info[3]);row.add(rowData);WindowClientChatRoom.model.setDataVector(row, columnNames);}}} catch (IOException e) {}}
}

客户端登录（启动）类：WindowClient

package cn.hehewocao_Windows;import java.awt.EventQueue;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.Socket;import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;public class WindowClient extends JFrame {private JPanel contentPane;private JTextField usernametextField;private JButton cencleButton;private JTextField IPtextField;private JTextField PORTtextField_1;public static String name;public static String sex;public static Socket s;public static void main(String[] args) {/*** Launch the application.*/EventQueue.invokeLater(new Runnable() {public void run() {try {WindowClient frame = new WindowClient();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});/*** Create the frame.*/}public WindowClient() {setTitle("加入聊天室");setResizable(false);setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);int width = Toolkit.getDefaultToolkit().getScreenSize().width;int height = Toolkit.getDefaultToolkit().getScreenSize().height;setBounds((width - 570) / 2, (height - 400) / 2, 570, 400);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);contentPane.setLayout(null);JLabel usernameLabel = new JLabel("昵称：");usernameLabel.setBounds(138, 54, 72, 18);contentPane.add(usernameLabel);JLabel sexLabel = new JLabel("性别：");sexLabel.setBounds(138, 100, 72, 18);contentPane.add(sexLabel);usernametextField = new JTextField();usernametextField.setBounds(224, 51, 204, 24);contentPane.add(usernametextField);usernametextField.setColumns(10);JButton yesButton = new JButton("加入聊天");yesButton.setBounds(377, 283, 113, 27);contentPane.add(yesButton);cencleButton = new JButton("退出");cencleButton.setBounds(97, 283, 113, 27);contentPane.add(cencleButton);JLabel lblip = new JLabel("服务器IP：");lblip.setBounds(122, 155, 88, 18);contentPane.add(lblip);IPtextField = new JTextField();IPtextField.setColumns(10);IPtextField.setBounds(224, 152, 204, 24);contentPane.add(IPtextField);JLabel label_1 = new JLabel("端口号：");label_1.setBounds(126, 211, 72, 21);contentPane.add(label_1);PORTtextField_1 = new JTextField();PORTtextField_1.setBounds(224, 209, 204, 24);contentPane.add(PORTtextField_1);PORTtextField_1.setColumns(10);JComboBox sexcomboBox = new JComboBox();sexcomboBox.setBounds(224, 97, 98, 24);contentPane.add(sexcomboBox);sexcomboBox.addItem("男");sexcomboBox.addItem("女");// 加入聊天室按钮动作yesButton.addActionListener(new ActionListener() {// 如果连接成功，打开聊天室窗口界面！@Overridepublic void actionPerformed(ActionEvent e) {name = usernametextField.getText().trim();sex = sexcomboBox.getSelectedItem().toString();String IP = IPtextField.getText().trim();String port = PORTtextField_1.getText().trim();int PORT = -1;try {PORT = Integer.parseInt(port);} catch (Exception e1) {JOptionPane.showMessageDialog(contentPane, "端口号输入不合法！");}if (name.length() == 0) {JOptionPane.showMessageDialog(contentPane, "昵称不能为空！");} else if (IP.length() == 0) {JOptionPane.showMessageDialog(contentPane, "服务器IP不能为空！");} else if (port.length() == 0 || PORT == -1) {JOptionPane.showMessageDialog(contentPane, "端口号不能为空！");} else {try {//创建与服务器的连接s = new Socket(IP, PORT);dispose();//JOptionPane.showMessageDialog(contentPane, "登陆成功！");// 这里调用客户端聊天室窗口/*** Launch the application.*/EventQueue.invokeLater(new Runnable() {public void run() {try {WindowClientChatRoom frame = new WindowClientChatRoom();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});/*** Create the frame.*/} catch (Exception e1) {JOptionPane.showMessageDialog(contentPane, "连接服务器超时！");}}}});cencleButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {dispose();}});}
}

客户端聊天室界面类：WindowClientChatRoom

package cn.hehewocao_Windows;import java.awt.EventQueue;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;import cn.hehewocao_Client.ClientReciveLinkInfoThread;
import cn.hehewocao_Client.ClientReciveThread;public class WindowClientChatRoom extends JFrame {private JPanel contentPane;private JTable friendtable;private String presendmessage;public static JTextArea infotextArea;public static JTextArea inputtextArea;public static BufferedWriter bw;public static DefaultTableModel model;/*** Launch the application.*/public static void main(String[] args) {EventQueue.invokeLater(new Runnable() {public void run() {try {WindowClientChatRoom frame = new WindowClientChatRoom();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});}/*** Create the frame.*/public WindowClientChatRoom() {setTitle("聊天室");setResizable(false);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);int width = Toolkit.getDefaultToolkit().getScreenSize().width;int height = Toolkit.getDefaultToolkit().getScreenSize().height;setBounds((width - 830) / 2, (height - 600) / 2, 830, 600);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);contentPane.setLayout(null);infotextArea = new JTextArea();infotextArea.setBounds(45, 71, 483, 283);JScrollPane scrollPane_1 = new JScrollPane();scrollPane_1.setBounds(45, 71, 483, 283);contentPane.add(scrollPane_1);scrollPane_1.setViewportView(infotextArea);//contentPane.add(infotextArea);JLabel label = new JLabel("消息记录：");label.setBounds(45, 27, 85, 18);contentPane.add(label);JLabel label_1 = new JLabel("在线好友：");label_1.setBounds(611, 27, 91, 18);contentPane.add(label_1);inputtextArea = new JTextArea();inputtextArea.setBounds(45, 394, 490, 107);JScrollPane scrollPane_2 = new JScrollPane();scrollPane_2.setBounds(45, 394, 490, 107);contentPane.add(scrollPane_2);scrollPane_2.setViewportView(inputtextArea);//contentPane.add(inputtextArea);JButton clearbutton = new JButton("清除");clearbutton.setBounds(621, 385, 138, 41);contentPane.add(clearbutton);JButton sendbutton = new JButton("发送");sendbutton.setBounds(621, 458, 138, 43);contentPane.add(sendbutton);JScrollPane scrollPane = new JScrollPane();scrollPane.setBounds(560, 72, 226, 282);model = new DefaultTableModel();friendtable = new JTable(model);scrollPane.setViewportView(friendtable);contentPane.add(scrollPane);Socket s = WindowClient.s;try {bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));bw.write(WindowClient.name + "=" + WindowClient.sex);bw.newLine();bw.flush();} catch (IOException e) {JOptionPane.showMessageDialog(contentPane, "用户信息发送失败！");}addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {// TODO Auto-generated method stubsuper.windowClosing(e);try {bw.write(WindowClient.name + "=Socket is closed!");bw.flush();s.close();} catch (IOException e1) {// TODO Auto-generated catch blockJOptionPane.showMessageDialog(null, "服务器已关闭！");}}});// 开启客户端接收进程ClientReciveThread crt = new ClientReciveThread(s);Thread rt = new Thread(crt);rt.start();// 开启客户端接收连接信息线程ClientReciveLinkInfoThread crlit = new ClientReciveLinkInfoThread();Thread rlit = new Thread(crlit);rlit.start();// 发送按钮动作sendbutton.addActionListener(new ActionListener() {private BufferedWriter bw = WindowClientChatRoom.bw;@Overridepublic void actionPerformed(ActionEvent e) {try {String str = inputtextArea.getText().trim();bw.write(WindowClient.name + "说：" + str);bw.newLine();bw.flush();} catch (IOException e1) {JOptionPane.showMessageDialog(null, "与服务器的连接断开，您已经被强制下线！");System.exit(0);}inputtextArea.setText("");}});// 清除按钮动作clearbutton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {inputtextArea.setText("");}});}
}

服务端启动类：WindowServer

package cn.hehewocao_Windows;import java.awt.EventQueue;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;import cn.hehewocao_Server.ServerAcceptThread;
import cn.hehewocao_ServerTools.ServerTools;import java.awt.Color;
import javax.swing.JScrollPane;public class WindowServer extends JFrame {private JPanel contentPane;public static JTable connectTable;final int port = 8868;private ServerSocket ss;private Thread at;public static DefaultTableModel model;public static JTextArea infortextArea;public static JTable table;/*** Launch the application.*/public static void main(String[] args) {EventQueue.invokeLater(new Runnable() {public void run() {try {WindowServer frame = new WindowServer();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});}/*** Create the frame.*/public WindowServer() {setTitle("聊天室服务器");setResizable(false);//setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);int width = Toolkit.getDefaultToolkit().getScreenSize().width;int height = Toolkit.getDefaultToolkit().getScreenSize().height;setBounds((width - 900) / 2, (height - 600) / 2, 900, 600);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);contentPane.setLayout(null);infortextArea = new JTextArea();infortextArea.setBounds(32, 102, 406, 390);JScrollPane scrollPane_1 = new JScrollPane();scrollPane_1.setBounds(32, 102, 406, 390);contentPane.add(scrollPane_1);scrollPane_1.setViewportView(infortextArea);//contentPane.add(infortextArea);JLabel label = new JLabel("聊天信息");label.setBounds(195, 78, 72, 18);contentPane.add(label);JLabel label_1 = new JLabel("连接信息");label_1.setBounds(610, 78, 72, 18);contentPane.add(label_1);JButton startbutton = new JButton("启动服务器");startbutton.setBounds(161, 522, 119, 27);contentPane.add(startbutton);JButton closebutton = new JButton("关闭服务器");closebutton.setBounds(576, 522, 119, 27);contentPane.add(closebutton);JLabel stateinfolabel = new JLabel("服务器未开启！");stateinfolabel.setForeground(Color.RED);stateinfolabel.setBounds(257, 30, 425, 18);contentPane.add(stateinfolabel);JScrollPane scrollPane = new JScrollPane();scrollPane.setBounds(472, 102, 394, 390);model = new DefaultTableModel();table = new JTable(model);scrollPane.setViewportView(table);contentPane.add(scrollPane);addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {// TODO Auto-generated method stubServerTools.writerFile();}});// 开启服务器按钮动作startbutton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {try {//ServerSocket ss = new ServerSocket(port);ss = new ServerSocket(port);InetAddress addr = InetAddress.getLocalHost();String hostip = addr.getHostAddress().toString(); // 获取本机IPstateinfolabel.setText("服务器已开启！服务器IP：" + hostip + "  端口号：" + ss.getLocalPort());JOptionPane.showMessageDialog(null, "服务器已开启！服务器IP：" + hostip + "  端口号：" + ss.getLocalPort());// 开启监听客户端连接ServerAcceptThread sat = new ServerAcceptThread(ss);//Thread at = new Thread(sat);at = new Thread(sat);at.start();} catch (Exception e1) {JOptionPane.showMessageDialog(null, "服务器已开启！");}}});//关闭服务器按钮动作！closebutton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {ServerTools.writerFile();System.exit(0);}});}
}

不足之处：

由于当时基础学的不扎实，刚开始做的时候存放socket和对应的user时没有选择恰当的数据结构。。。ー(￣～￣)ξ 做了一半才发现应该用map集合的。
可能是因为端口的问题，导致客户端无法多开，好伤啊，找了半天也不知道如何修改，所以演示的时候只演示了一个客户端，如果想要实现一对多，只能在另一台电脑再运行一个客户端了。
程序编写的不是很清晰，可阅读性还是太差了

总而言之，作为一名初学者，自己掌握的东西还是很缺乏的，希望自己能通过编写一些大一点的项目，增加自己的编程经验，加油！ ↖(^ω)↗

最后

源码可以在我的GitHub上下载：git@github.com:hehewocao00544/java.git 中的ChatRoomGUI
或CSDN下载：https://download.csdn.net/download/qq_42080839/11383338

至此就是JavaGUI版的聊天室全部内容。

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