增加主菜单

.idea/.name

@@ -1 +1 @@
-User.java
+UserService.java

data/users.json

@@ -5,5 +5,5 @@
   "registrationDate" : [ 2025, 10, 8, 21, 0, 37, 863490500 ],
   "verificationCode" : "926911",
   "verified" : true,
-  "type" : "初中"
+  "type" : "小学"
 } ]

src/main/java/mathlearning/ui/LoginFrame.java

@@ -157,7 +157,12 @@ public class LoginFrame extends JFrame{
                     "登录成功", JOptionPane.INFORMATION_MESSAGE);
         }
 
-        // 后续可以在这里打开主界面
-        // openMainApplicationWindow(user);
+        openMainApplicationWindow(user, userService);
+    }
+
+    private void openMainApplicationWindow(User user, UserService userService) {
+        MainFrame mainFrame = new MainFrame(user, userService);
+        mainFrame.setVisible(true);
+        dispose();
     }
 }

src/main/java/mathlearning/ui/MainFrame.java

@@ -0,0 +1,137 @@
+package mathlearning.ui;
+
+import com.sun.tools.javac.Main;
+import mathlearning.model.User;
+import mathlearning.service.UserService;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class MainFrame extends JFrame {
+    private User currentUser;
+    private UserService userService;
+    private JLabel welcomeLabel;
+    private JLabel typeLabel;
+
+    public MainFrame(User user, UserService userService) {
+        this.currentUser = user;
+        this.userService = userService;
+        InitializeUI();
+    }
+
+    private void InitializeUI() {
+        setTitle("数学学习软件 - 菜单");
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setSize(500, 400);
+        setLocationRelativeTo(null);
+        setResizable(false);
+
+        // 主面板
+        JPanel titlePanel = new JPanel(new BorderLayout());
+        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
+        mainPanel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
+
+        // 欢迎用户与type信息
+        welcomeLabel = new JLabel("欢迎"+currentUser.getUsername()+"!", JLabel.CENTER);
+        welcomeLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
+
+        typeLabel = new JLabel("当前选择的测试题为" + currentUser.getType() + "难度", JLabel.CENTER);
+        typeLabel.setFont(new Font("微软雅黑", Font.BOLD, 16));
+        typeLabel.setForeground(Color.BLUE);
+
+        titlePanel.add(welcomeLabel, BorderLayout.NORTH);
+        titlePanel.add(typeLabel, BorderLayout.CENTER);
+        mainPanel.add(titlePanel, BorderLayout.NORTH);
+
+        // 功能按钮区域
+        JPanel centerButtonPanel = new JPanel(new GridLayout(2, 1, 15, 15));
+        centerButtonPanel.setBorder(BorderFactory.createEmptyBorder(30, 50, 30, 50));
+        // 切换教育阶段按钮
+        JButton changeTypeButton = new JButton("切换教育阶段");
+        changeTypeButton.setFont(new Font("微软雅黑", Font.BOLD, 18));
+        changeTypeButton.setBackground(new Color(70, 130, 180));
+        changeTypeButton.setForeground(Color.WHITE);
+        changeTypeButton.setPreferredSize(new Dimension(200, 60));
+        changeTypeButton.addActionListener(new ChangeTypeListener());
+
+        // 自我测试按钮
+        JButton selfTestButton = new JButton("自我测试");
+        selfTestButton.setFont(new Font("微软雅黑", Font.BOLD, 18));
+        selfTestButton.setBackground(new Color(34, 139, 34));
+        selfTestButton.setForeground(Color.WHITE);
+        selfTestButton.setPreferredSize(new Dimension(200, 60));
+        //selfTestButton.addActionListener(new SelfTestListener());
+
+        centerButtonPanel.add(changeTypeButton);
+        centerButtonPanel.add(selfTestButton);
+        mainPanel.add(centerButtonPanel, BorderLayout.CENTER);
+
+        // 底部按钮面板 - 两个较小按钮
+        JPanel bottomButtonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 10));
+
+        // 退出登录按钮
+        JButton logoutButton = new JButton("退出登录");
+        logoutButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        logoutButton.setBackground(new Color(220, 20, 60));
+        logoutButton.setForeground(Color.WHITE);
+        logoutButton.addActionListener(new LogoutListener());
+
+        // 个人资料按钮
+        JButton profileButton = new JButton("个人资料");
+        profileButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        profileButton.setBackground(new Color(100, 149, 237));
+        profileButton.setForeground(Color.WHITE);
+        profileButton.addActionListener(new ProfileListener());
+
+        bottomButtonPanel.add(logoutButton);
+        bottomButtonPanel.add(profileButton);
+        mainPanel.add(bottomButtonPanel, BorderLayout.SOUTH);
+
+        add(mainPanel);
+    }
+
+    private class ChangeTypeListener implements ActionListener {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            String[] types = {"小学", "初中", "高中" };
+            String selectedType = (String) JOptionPane.showInputDialog(MainFrame.this, "请选择需要切换的难度：", "选择难度", JOptionPane.QUESTION_MESSAGE, null, types, currentUser.getType());
+            if (selectedType != null) {
+                boolean updated = userService.updateUserType(currentUser.getEmail(), selectedType);
+
+                if (updated) {
+                    currentUser.setType(selectedType);
+                    JOptionPane.showMessageDialog(MainFrame.this, "当前难度已更改为" + currentUser.getType() , "切换成功", JOptionPane.INFORMATION_MESSAGE);
+                    updateTypeDisplay();
+                } else {
+                    JOptionPane.showMessageDialog(MainFrame.this, "切换失败", "错误", JOptionPane.ERROR_MESSAGE);
+                }
+            }
+        }
+    }
+
+    private void updateTypeDisplay() {
+        typeLabel.setText("当前选择的测试题为" + currentUser.getType() + "难度");
+    }
+
+    private class LogoutListener implements ActionListener {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            int result = JOptionPane.showConfirmDialog(MainFrame.this, "确定要退出登陆吗？", "退出登录", JOptionPane.YES_NO_OPTION);
+
+            if (result == JOptionPane.YES_OPTION) {
+                LoginFrame loginFrame = new LoginFrame(userService);
+                loginFrame.setVisible(true);
+                dispose();
+            }
+        }
+    }
+
+    private class ProfileListener implements ActionListener {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+
+        }
+    }
+}