I. Function realization

1. Modify functions (password, nickname, and signature) 2. Add and delete friends 3. 4. Check whether your friends are online

Two. Module division

Three. Knowledge of use

• netty
• swing
• SynchronousQueue, such as collection
• CRUD in MySQL database
• C3p0 connection pool
• JSON string

Four. Part of the code implementation

1. nettyController.java

It receives a message from the client, interacts with the DAO layer, and the DAO layer interacts with its databaseCopy the code

Change the password

Add buddy

I took a lot of detours from the implementation of the add friends logic and frequently accessed the database, which was a bad thing

package chat.Project.controller;

import chat.Project.bean.information;
import chat.Project.constant.EnMsgType;
import chat.Project.dao.*;
import chat.utils.CacheUtil;
import chat.utils.JsonUtils;
import com.fasterxml.jackson.databind.node.ObjectNode;
import io.netty.channel.Channel;

import java.util.ArrayList;
import java.util.Iterator;

public class NettyController {

    private static UserDao userDao = new UserDaoImpl();
    private static informationDao informationDao = new informationDaoImpl();
    private static friendDao friendDao = new friendDaoImpl();

    public static String processing(String message, Channel channel){

        //解析客户端发送的消息
        ObjectNode jsonNodes = JsonUtils.getObjectNode(message);
        String msgtype = jsonNodes.get("msgtype").asText();
        if (EnMsgType.EN_MSG_LOGIN.toString().equals(msgtype)){
            //登录操作
            return loginOperation(jsonNodes,channel);
        }else if (EnMsgType.EN_MSG_MODIFY_SIGNATURE.toString().equals(msgtype)){
            //修改签名
            return modifySignature(jsonNodes);
        }else if (EnMsgType.EN_MSG_MODIFY_NICKNAME.toString().equals(msgtype)){
            //修改昵称
            return modifyNickname(jsonNodes);
        }else if (EnMsgType.EN_MSG_GETINFORMATION.toString().equals(msgtype)){
            //获取登录信息
            return getInformation(jsonNodes);
        }else if (EnMsgType.EN_MSG_VERIFY_PASSWORD.toString().equals(msgtype)){
            //进行修改密码
            return verifyPasswd(jsonNodes);
        }else if (EnMsgType.EN_MSG_CHAT.toString().equals(msgtype)){
            //单聊模式
            return SingleChat(jsonNodes);
        }else if (EnMsgType.EN_MSG_GET_ID.toString().equals(msgtype)){
            //获取id
            return getId(jsonNodes);
        }else if (EnMsgType.EN_MSG_GET_FRIEND.toString().equals(msgtype)){
            //获取好友列表
            return getFriend(jsonNodes);
        }else if (EnMsgType.EN_MSG_ADD_FRIEND.toString().equals(msgtype)){
            //添加好友
            return addFriends(jsonNodes);
        }else if (EnMsgType.EN_MSG_DEL_FRIEND.toString().equals(msgtype)){
            //删除好友
            return delFriend(jsonNodes);
        }else if (EnMsgType.EN_MSG_ACTIVE_STATE.toString().equals(msgtype)){
            //判断好友的在线状态
            return friendIsActive(jsonNodes);
        }
        return "";
    }

    //判断好友在线状态
    private static String friendIsActive(ObjectNode jsonNodes) {
        int friendId = jsonNodes.get("friendId").asInt();

        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_ACTIVE_STATE.toString());

        //客户端保证用户独立存在且是好友
        Channel channel = CacheUtil.get(friendId);
        //判断用户是否在线
        if (channel == null){
            //用户不在线
            objectNode.put("code",200);
        }else {
            //用户在线
            objectNode.put("code",300);
        }
        return objectNode.toString();
    }

    //添加好友
    private static String delFriend(ObjectNode jsonNodes) {
        Integer friendId = jsonNodes.get("friendId").asInt();
        int userId = jsonNodes.get("id").asInt();
        String localName = jsonNodes.get("localName").asText();

        //封装发回客户端的JSON
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_DEL_FRIEND.toString());
        objectNode.put("code",200);

        //验证是否存在当前好友
        information information = informationDao.getInformation(friendId);
        String friendName = information.getNickname();
        //查询自己是否有该好友
        boolean exist = friendDao.isExist(friendName,userId);
        if (exist){
            //存在当前好友进行删除操作
            friendDao.delFriend(userId,friendName);
            friendDao.delFriend(friendId,localName);
            objectNode.put("code",300);
        }
        return objectNode.toString();
    }

    //添加好友
    private static String addFriends(ObjectNode jsonNodes) {
        Integer friendId = jsonNodes.get("friendId").asInt();
        int userId = jsonNodes.get("id").asInt();
        String localName = jsonNodes.get("localName").asText();

        //验证是否有ID
        boolean exists = userDao.verifyExistFriend(friendId);
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_ADD_FRIEND.toString());
        objectNode.put("code",200);

        if(exists){
            //表示存在此id
            objectNode.put("code",300);
            //获取好友昵称
            information information = informationDao.getInformation(friendId);
            String friendNickname = information.getNickname();
            //进行添加好友的操作   两个对应的信息都应该添加
            friendDao.addFriends(userId,localName,friendNickname);
            friendDao.addFriends(friendId,friendNickname,localName);
        }
        return objectNode.toString();
    }

    //获取好友列表
    private static String getFriend(ObjectNode jsonNodes) {

        int uid = jsonNodes.get("uid").asInt();

        //返回ArrayLis集合
        ArrayList<String> friends = friendDao.getFriends(uid);
        //封装JSON
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_GET_FRIEND.toString());

        //写回friend集合
        Iterator<String> iterator = friends.iterator();
        int i = 0;
        while (iterator.hasNext()){
            objectNode.put("res"+i,iterator.next());
            i++;
        }
        //记录好友个数
        objectNode.put("count",i);

        return objectNode.toString();
    }

    //获取id
    private static String getId(ObjectNode jsonNodes) {
        String nickname = jsonNodes.get("nickname").asText();
        information information = informationDao.nicknameGetId(nickname);
        //联系人的id
        int uid = information.getUid();
        //封装JSON
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_GET_ID.toString());
        objectNode.put("uid",uid);
        return objectNode.toString();
    }

    //单聊模式
    private static String SingleChat(ObjectNode jsonNodes) {

        int id = jsonNodes.get("id").asInt();

        //根据id在friend表获取登录用户名

        //封装JSON数据服务端转发数据
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_CHAT.toString());

        //客户端保证用户独立存在且是好友
        Channel channel = CacheUtil.get(id);
        //判断用户是否在线
        if (channel == null){
            //用户不在线
            objectNode.put("code",200);
        }else{
            //用户在线
            objectNode.put("code",300);
            //消息转发
            channel.writeAndFlush(jsonNodes.toString());
        }
        return objectNode.toString();
    }

    //修改密码
    private static String verifyPasswd(ObjectNode jsonNodes) {
        int id = jsonNodes.get("id").asInt();
        String oldPasswd = jsonNodes.get("oldPasswd").asText();
        String newPasswd = jsonNodes.get("newPasswd").asText();

        boolean exits = userDao.verifyPassword(oldPasswd, id);

        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_VERIFY_PASSWORD.toString());
        objectNode.put("code",200);
        if (exits){
            //验证成功
            userDao.modifyPasswd(newPasswd,id);
            objectNode.put("code",300);
        }
        return objectNode.toString();
    }

    //获取信息
    private static String getInformation(ObjectNode jsonNodes) {
        int id = jsonNodes.get("id").asInt();

        information information = informationDao.getInformation(id);

        //封装JSON发回客户端
        ObjectNode objectNode = JsonUtils.getObjectNode();
        objectNode.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        objectNode.put("srctype",EnMsgType.EN_MSG_GETINFORMATION.toString());
        objectNode.put("Nickname",information.getNickname());
        objectNode.put("Signature",information.getSignature());

        return objectNode.toString();
    }

    //修改昵称
    private static String modifyNickname(ObjectNode jsonNodes) {
        int id = jsonNodes.get("id").asInt();
        String nickname = jsonNodes.get("nickname").asText();
        //进行存储
        informationDao.storeNickname(nickname,id);
        return "";
    }

    //修改签名
    private static String modifySignature(ObjectNode jsonNodes) {
        int id = jsonNodes.get("id").asInt();
        String signature = jsonNodes.get("signature").asText();
        //进行存储
        informationDao.storeSignature(signature,id);
        return "";
    }

    //登录操作
    private static String loginOperation(ObjectNode objectNode,Channel channel) {

        int id = objectNode.get("id").asInt();
        String passwd = objectNode.get("passwd").asText();
        //进行数据库查询
        boolean exits = userDao.getInformation(id, passwd);

        ObjectNode jsonNodes = JsonUtils.getObjectNode();
        jsonNodes.put("msgtype",EnMsgType.EN_MSG_ACK.toString());
        jsonNodes.put("srctype",EnMsgType.EN_MSG_LOGIN.toString());
        jsonNodes.put("code",300);
        //返回状态码
        if (exits){
            jsonNodes.put("code",200);

            //添加用户的在线信息
            CacheUtil.put(id,channel);
        }
        return jsonNodes.toString();
    }
}
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2. ClientHandler.java

The client receives the message returned from the server and determines whether the operation is successful according to the returned status code. import chat.Frame.chat.ChatFrame; import chat.Frame.chat.linkmen; import chat.Frame.chat.login; import chat.Project.constant.EnMsgType; import chat.util.JsonUtils; import com.fasterxml.jackson.databind.node.ObjectNode; import io.netty.channel.ChannelHandlerContext; import io.netty.channel.SimpleChannelInboundHandler; import java.util.concurrent.SynchronousQueue; Public class ClientHandler extends SimpleChannelInboundHandler < String > {/ / define a synchronous blocking queue status code public static SynchronousQueue<Object> queue = new SynchronousQueue<>(); public static String Nickname; public String Signature; @Override protected void channelRead0(ChannelHandlerContext channelHandlerContext, String s) throws Exception {} // Client receives data. @Override public void channelRead(ChannelHandlerContext CTX, Object msg) throws Exception { System.out.println(msg); ObjectNode jsonNodes = jsonutils.getobJectNode ((String) MSG); // Parse the message sent by the server. String msgtype = jsonNodes.get("msgtype").asText(); if (EnMsgType.EN_MSG_ACK.toString().equals(msgtype)) { String srctype = jsonNodes.get("srctype").asText(); If (enmsgtype.en_msg_login.tostring ().equals(srctype)) {queue.offer(jsonnodes.get ("code").asint ()); }else if(enmsgtype.en_msg_getinformation.tostring ().equals(srctype)){// call = jsonNodes.get("Nickname").asText(); Signature = jsonNodes.get("Signature").asText(); linkmen.label_1.setText(Nickname); linkmen.field.setText(Signature); }else if (enmsgtype.en_msg_chat.tostring ().equals(srctype)){queue.offer(jsonnodes.get ("code").asint ()); }else if (EnMsgType.EN_MSG_GET_ID.toString().equals(srctype)){ int uid = jsonNodes.get("uid").asInt(); queue.offer(uid); }else if (enmsgtype.en_msg_get_friend.tostring ().equals(srctype)){// Get the user's friend int count = jsonNodes.get("count").asInt(); login.friend = new String[count]; for ( int i = 0; i<count; i++){ login.friend[i] = jsonNodes.get("res"+i).asText(); System.out.println(jsonNodes.get("res"+i)); }}else if (enmsgtype.en_msg_add_friend.tostring ().equals(srctype)){queue.offer(jsonnodes.get ("code").asint ()); }else if (enmsgtype.en_msg_del_friend.tostring ().equals(srctype)){queue.offer(jsonnodes.get ("code").asint ()); }else if (enmsgtype.en_MSg_active_state.tostring ().equals(srctype)){// Friend status queue.offer(jsonNodes.get("code").asInt()); }}else if (enmsgtype.en_msg_verify_password.tostring ().equals(msgtype)){int code = 0; code = jsonNodes.get("code").asInt(); queue.offer(code); }else if (enmsgtype.en_MSg_chat.tostring ().equals(msgType)){// The receiver accepts the message to wrap the friend's name String message = ""+ jsonNodes.get("message").asText(); Chatframe.sb. Append (message+"\n"); ChatFrame.displayTextPanel.setText(ChatFrame.sb.toString()); }}}Copy the code

3. linkmen.java

这是登录成功的界面



package chat.Frame.chat;

import chat.Frame.operation.alterColumn.changeNickname;
import chat.Frame.operation.alterColumn.changePassword;
import chat.Frame.operation.alterColumn.changeSignature;
import chat.Frame.operation.friendHandle.addFriend;
import chat.Frame.operation.friendHandle.delFriend;
import chat.Frame.tipFrame;
import chat.Project.services.sendServers;
import io.netty.channel.Channel;

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;


/**
 * 联系人界面
 */
public class linkmen extends JFrame {
    //容器
    private JFrame frame;
    //标签
    private JLabel  label_2, label_3, label_4, label;
    //昵称
    public static JLabel label_1;
    //状态框
    private JComboBox box, box_1, box_2;
    //图片
    private ImageIcon icon_1, icon;
    //文本
    private JTextField  field_1;
    //个性签名
    public static JTextField field;
    //面板
    private JPanel panel_1, panel_3, panel;
    //滚动面板
    public JScrollPane panel_2;
    //列表
    public static JList list;
    //与服务端通信的通道
    private Channel channel;
    //用户的id
    private Integer id;
    //暂存oldPasswd
    public static JLabel label_5,label_6;
    //好友列表数组
    private String[] fd;
    //列表
    public static DefaultListModel<String> model;

    public linkmen(Integer id, Channel channel,String[] fd) {
        this.id = id;
        this.channel = channel;
        this.fd = fd;
    }

    public void init() {
        //初始化面板1并设置信息
        panel_1 = new JPanel();
        panel_1.setLayout(null);
        panel_1.setLocation(0, 0);
        panel_1.setBorder(BorderFactory.createTitledBorder("资料卡"));
        panel_1.setSize(new Dimension(295, 148));
        panel_1.setOpaque(false);


        //初始化面板3并设置信息
        panel_3 = new JPanel();
        panel_3.setLayout(null);
        panel_3.setBorder(BorderFactory.createTitledBorder("系统设置"));
        panel_3.setLocation(0, 617);
        panel_3.setSize(new Dimension(295, 55));
        panel_3.setOpaque(false);

        //设置头像标签
        label_2 = new JLabel(new ImageIcon("E:\\聊天软件\\untitled\\src\\imageSource\\4.png"));
        label_2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        label_2.setBounds(15, 15, 100, 100);
        panel_1.add(label_2);

        //初始暂存标签
        label_5 = new JLabel();
        label_6 = new JLabel();

        //设置昵称标签
        label_1 = new JLabel("");
        label_1.setBounds(130, 10, 100, 30);
        label_1.setFont(new Font("宋体", Font.PLAIN, 18));
        panel_1.add(label_1);

        list = new JList<String>(model);
        //设置每个列表的高
        list.setFixedCellHeight(20);
        list.setSelectionBackground(new Color(0xD8FF2F));
        list.addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent e) {
                //打开一个聊天窗口
                if (e.getValueIsAdjusting()) {
                    for (int i = 0; i < model.size(); i++) {
                        if (model.get(i).equals(list.getSelectedValue())){
                            //获取id有错误
                            int ids = new sendServers(channel).getId((String) list.getSelectedValue());
                            if (ids!=0) {
                                new sendServers(channel).friendIsActive(ids);
                                new ChatFrame(ids, channel).setVisible(true);
                            }else{
                                System.out.println("好友不存在");
                            }
                        }
                    }
                }
            }
        });

        //初始化面板二
        panel_2 = new JScrollPane(list);
        panel_2.setBorder(BorderFactory.createTitledBorder("联系人"));
        panel_2.setLocation(0, 147);
        panel_2.setSize(new Dimension(295, 470));
        panel_2.getViewport().setOpaque(false);
        list.setOpaque(false);
        panel_2.setOpaque(false);

        //设置在线状态bBox();
        box = new JComboBox();
        box.addItem("✅在线");
        box.addItem("\uD83D\uDCBF隐身");
        box.addItem("\uD83D\uDCBB忙碌");
        box.addItem("❎离线");
        box.setBounds(200, 10, 70, 30);
        panel_1.add(box);

        //设置个性签名的标签
        label_4 = new JLabel("个性签名:");
        label_4.setFont(new Font("宋体", Font.PLAIN, 16));
        label_4.setForeground(Color.BLUE);
        label_4.setBounds(120, 50, 100, 20);
        panel_1.add(label_4);

        //设置文本
        field = new JTextField("");
        field.setBounds(120, 80, 160, 30);
        panel_1.add(field);

        label_3 = new JLabel("\uD83D\uDD0D");
        label_3.setForeground(Color.RED);
        label_3.setBounds(10, 122, 20, 20);
        panel_1.add(label_3);

        //设置搜索栏
        field_1 = new JTextField();
        field_1.setBounds(30, 120, 250, 25);
        panel_1.add(field_1);

        //对面板三进行初始化
        box_1 = new JComboBox();
        box_1.addItem("\uD83D\uDD12\uD83D\uDD28\uD83D\uDD13");
        box_1.addItem("修改密码");
        box_1.addItem("修改昵称");
        box_1.addItem("修改签名");
        box_1.setBounds(8, 20, 100, 25);
        panel_3.add(box_1);
        box_1.addItemListener(new ItemListener() {
            @Override
            public void itemStateChanged(ItemEvent e) {
                if ("修改签名".equals(box_1.getSelectedItem())) {
                    //执行一次
                    if (e.getStateChange() == ItemEvent.SELECTED) {
                        changeSignature changeSignature = new changeSignature(linkmen.this);
                        changeSignature.setVisible(true);
                        field.setText(changeSignature.jTextField.getText());
                        String signature = field.getText();
                        //存储签名的方法
                        new sendServers(channel).modifySignature(signature, id);
                    }
                }
                if ("修改密码".equals(box_1.getSelectedItem())) {
                    if (e.getStateChange() == ItemEvent.SELECTED) {
                        changePassword changePassword = new changePassword(linkmen.this);
                        changePassword.setVisible(true);
                        label_5.setText(changePassword.oldPassword.getText());
                        String oldPasswd = label_5.getText();
                        label_6.setText(new String(changePassword.newPassword.getPassword()));
                        String newPasswd = label_6.getText();
                        //进行验证
                        new sendServers(channel).verifyPasswd(oldPasswd, id,newPasswd);

                    }
                }
                if ("修改昵称".equals(box_1.getSelectedItem())) {
                    if (e.getStateChange() == ItemEvent.SELECTED) {
                        changeNickname changeNickname = new changeNickname(linkmen.this);
                        changeNickname.setVisible(true);
                        label_1.setText(changeNickname.jTextField.getText());
                        String nickname = label_1.getText();
                        //存储昵称
                        new sendServers(channel).modifyNickname(nickname, id);
                    }
                }
            }
        });
        //添加好友、删除好友
        box_2 = new JComboBox();
        box_2.addItem("\uD83D\uDC65");
        box_2.addItem("添加好友");
        box_2.addItem("删除好友");
        box_2.setBounds(170, 20, 100, 25);
        box_2.addItemListener(new ItemListener() {
            @Override
            public void itemStateChanged(ItemEvent e) {
                if ("添加好友".equals(box_2.getSelectedItem())) {
                    if (e.getStateChange() == ItemEvent.SELECTED) {
                        addFriend addFriend = new addFriend(linkmen.this);
                        addFriend.setVisible(true);
                        //读取要搜索的ID
                        String friendIds = addFriend.jTextField.getText();
                        //判断是否是字符串
                        if (judgeDigit(friendIds)){
                            int friendId = Integer.parseInt(friendIds);
                            //搜索数据库
                            new sendServers(channel).addFriendOperate(friendId,id,label_1.getText());
                        }else {
                            new tipFrame().init("输入参数错误");
                        }
                    }
                }
                if ("删除好友".equals(box_2.getSelectedItem())) {
                    if (e.getStateChange() == ItemEvent.SELECTED) {
                        delFriend delFriend = new delFriend(linkmen.this);
                        delFriend.setVisible(true);
                        //对其数据库进行删除操作
                        String friendIds = delFriend.TextField.getText();
                        //判断是否是字符串
                        if(judgeDigit(friendIds)){
                            int friendId = Integer.parseInt(friendIds);
                            //操作数据库
                            new sendServers(channel).delFriendOperate(friendId,id,label_1.getText());
                        }else{
                            new tipFrame().init("输入参数错误");
                        }
                    }
                }
            }
        });
        panel_3.add(box_2);
        //设置frame信息
        frame = new JFrame();
        //设置窗体信息
        frame.setTitle("腾讯QQ");
        //给窗体设置图片
        icon_1 = new ImageIcon("E:\\聊天软件\\untitled\\src\\imageSource\\3.png");
        frame.setIconImage(icon_1.getImage());
        icon = new ImageIcon("E:\\聊天软件\\untitled\\src\\imageSource\\5.png");
        label = new JLabel(icon);
        //获取窗口的第二层，将label放入
        frame.getLayeredPane().add(label, new Integer(Integer.MIN_VALUE));
        //获取frame的顶层容器,并设置为透明
        panel = (JPanel) frame.getContentPane();
        panel.setOpaque(false);
        frame.setLayout(null);
        frame.setLocation(750, 150);
        frame.setSize(287, 700);
        frame.setVisible(true);
        frame.setResizable(false);
        label.setBounds(0, 0, 287, 700);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.add(panel_1);
        frame.add(panel_2);
        frame.add(panel_3);
    }

    public void mian() {
        //初始化面板2并设置信息
        model = new DefaultListModel<>();
        for (int i = 0; i < fd.length; i++) {
            model.addElement(fd[i]);
        }
        init();
        //更新昵称和签名
        new sendServers(channel).update(id);
        //获取用户的昵称,和好友列表

        //设置签名和昵称字体初始样式和大小
        label_1.setFont(new Font("宋体", Font.PLAIN, 18));
        field.setFont(new Font("宋体", Font.PLAIN, 18));
    }

    //判断是否是数字
    private static boolean judgeDigit(String string){
        for (int i = 0; i < string.length(); i++) {
            if (!Character.isDigit(string.charAt(i))){
                return false;
            }
        }
        return true;
    }
}
Copy the code

4.tipFrame

Prompt operation status window package chat.frame; import chat.Frame.chat.linkmen; import chat.Frame.operation.alterColumn.changeNickname; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class tipFrame extends JDialog { private Container container; Public JLabel label; // Confirm button private JButton button; public tipFrame(){ } public void init(String msg){ container = getContentPane(); label = new JLabel(msg); Label. SetBounds (70,0,200,70); Label.setfont (new Font(" Microsoft yahei ",Font.PLAIN,20)); container.add(label); Button = new JButton(" confirm "); Button. The setBounds (35,50,140,40); container.add(button); SetBounds (780170220140); setLayout(null); setVisible(true); container.setBackground(new Color(0xD8FFD5)); // Prompt window front setAlwaysOnTop(true); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { tipFrame.this.dispose(); }}); }}Copy the code

5. Running case diagram

1. Login page

Registering accounts and forgetting passwords without adding events are now a matter of decoration

2. Contact page

All of these functions are available

3. Chat interface

I didn’t get the emoji button on this one right

4. Communication process

5. Modify operations

6. Friend operations

PS: If you think my share is good, welcome everyone to forward and follow.

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