增加忘记密码功能

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

data/users.json

@@ -1,8 +1,8 @@
 [ {
   "username" : "小鱼",
   "email" : "1280556515@qq.com",
-  "passwordHash" : "$2a$12$J6oCgotwddD.tOspkOnMlOBcB9C7RcMNmR0MvaCuAutnIneXSrHm6",
+  "passwordHash" : "$2a$12$0.CsIN83oxG1vbZe6vNVte3JaxvX2JU2j0hyprng6meq9/N4e732m",
   "registrationDate" : [ 2025, 10, 8, 21, 0, 37, 863490500 ],
-  "verificationCode" : "658919",
+  "verificationCode" : "963213",
   "verified" : true
 } ]

src/main/java/mathlearning/service/UserService.java

@@ -147,6 +147,48 @@ public class UserService {
         return true;
     }
 
+    public boolean setPasswordResetCode(String email, String verificationCode) {
+        User user = users.get(email);
+        if (user == null) {
+            return false; // 用户不存在
+        }
+
+        user.setVerificationCode(verificationCode);
+        verificationCodeTimestamps.put(email, LocalDateTime.now());
+        saveUsers();
+        return true;
+    }
+
+    public boolean resetPasswordWithCode(String email, String verificationCode, String newPassword) {
+        User user = users.get(email);
+        if (user == null) {
+            return false;
+        }
+
+        // 验证验证码
+        if (!user.getVerificationCode().equals(verificationCode)) {
+            return false;
+        }
+
+        // 检查验证码是否过期
+        LocalDateTime codeTime = verificationCodeTimestamps.get(email);
+        if (codeTime == null || codeTime.plusMinutes(VERIFICATION_CODE_EXPIRY_MINUTES).isBefore(LocalDateTime.now())) {
+            return false;
+        }
+
+        // 验证新密码格式
+        if (!validatePassword(newPassword)) {
+            return false;
+        }
+
+        // 更新密码
+        String newPasswordHash = BCrypt.withDefaults().hashToString(12, newPassword.toCharArray());
+        user.setPasswordHash(newPasswordHash);
+        verificationCodeTimestamps.remove(email); // 清除验证码
+        saveUsers();
+        return true;
+    }
+
     public boolean validatePassword(String password) {
         if (password.length() < 6 || password.length() > 10) {
             return false;
@@ -169,6 +211,11 @@ public class UserService {
         return users.containsKey(email);
     }
 
+    public boolean isUserExistsAndVerified(String email) {
+        User user = users.get(email);
+        return user != null && user.isVerified();
+    }
+
     public boolean isValidEmail(String email) {
         return email.matches("^[A-Za-z0-9+_.-]+@(.+)$");
     }

src/main/java/mathlearning/ui/ChangeCodeFrame.java

@@ -0,0 +1,226 @@
+package mathlearning.ui;
+
+import at.favre.lib.crypto.bcrypt.BCrypt;
+import mathlearning.model.User;
+import mathlearning.service.EmailService;
+import mathlearning.service.UserService;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class ChangeCodeFrame extends JFrame {
+    private UserService userService;
+    private EmailService emailService;
+    private LoginFrame loginFrame;
+
+    private JTextField emailField;
+    private JButton sendCodeButton;
+    private JTextField codeField;
+    private JPasswordField passwordField;
+    private JPasswordField confirmPasswordField;
+    private JButton registerButton;
+    private JButton backButton;
+
+    private String verificationCode;
+
+    public ChangeCodeFrame(UserService userService, LoginFrame loginFrame) {
+        this.userService = userService;
+        this.loginFrame = loginFrame;
+
+        // 配置邮箱服务（需要替换为真实的邮箱配置）
+        this.emailService = new EmailService(
+                "smtp.qq.com",
+                "587",
+                "2793415226@qq.com",  // 替换为你的QQ邮箱
+                "rmiomlakglpjddhb",  // 替换为你的授权码
+                true
+        );
+
+        initializeUI();
+    }
+
+    private void initializeUI() {
+        setTitle("数学学习软件 - 忘记密码");
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setSize(450, 400);
+        setLocationRelativeTo(null);
+        setResizable(false);
+
+        // 主面板
+        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
+        mainPanel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
+
+        // 标题
+        JLabel titleLabel = new JLabel("重置密码", JLabel.CENTER);
+        titleLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
+        mainPanel.add(titleLabel, BorderLayout.NORTH);
+
+        //表单面板
+        JPanel formPanel = new JPanel(new GridLayout(5, 2, 10, 10));
+
+        JLabel emailLabel = new JLabel("邮箱:");
+        emailLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        emailField = new JTextField();
+
+        JLabel codeLabel = new JLabel("验证码:");
+        codeLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+
+        JPanel codePanel = new JPanel(new BorderLayout());
+        codeField = new JTextField();
+        sendCodeButton = new JButton("发送验证码");
+        sendCodeButton.addActionListener(new SendCodeListener());
+
+        codePanel.add(codeField, BorderLayout.CENTER);
+        codePanel.add(sendCodeButton, BorderLayout.EAST);
+
+        JLabel passwordLabel = new JLabel("新密码:");
+        passwordLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        passwordField = new JPasswordField();
+
+        JLabel confirmPasswordLabel = new JLabel("确认密码:");
+        confirmPasswordLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        confirmPasswordField = new JPasswordField();
+
+        formPanel.add(emailLabel);
+        formPanel.add(emailField);
+        formPanel.add(codeLabel);
+        formPanel.add(codePanel);
+        formPanel.add(passwordLabel);
+        formPanel.add(passwordField);
+        formPanel.add(confirmPasswordLabel);
+        formPanel.add(confirmPasswordField);
+
+        mainPanel.add(formPanel, BorderLayout.CENTER);
+
+        // 按钮面板
+        JPanel buttonPanel = new JPanel(new FlowLayout());
+
+        registerButton = new JButton("更改密码");
+        registerButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        registerButton.addActionListener(new ChangeCodeFrame.ChangeCodeButtonListener());
+
+        backButton = new JButton("返回登录");
+        backButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        backButton.addActionListener(e -> goBackToLogin());
+
+        buttonPanel.add(registerButton);
+        buttonPanel.add(backButton);
+
+        mainPanel.add(buttonPanel, BorderLayout.SOUTH);
+
+        add(mainPanel);
+    }
+
+    private class SendCodeListener implements ActionListener {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            String email = emailField.getText().trim();
+
+            if (email.isEmpty()) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "请输入邮箱地址", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            if (!userService.isValidEmail(email)) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "邮箱格式不正确", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            // 检查用户是否存在且已验证
+            if (!userService.isUserExistsAndVerified(email)) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "该邮箱未注册或未验证", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            // 生成6位验证码
+            verificationCode = String.valueOf((int)((Math.random() * 9 + 1) * 100000));
+
+            // 发送验证码邮件
+            boolean sent = emailService.sendVerificationCode(email, verificationCode);
+
+            if (sent) {
+                // 在服务中保存验证码
+                boolean codeSaved = userService.setPasswordResetCode(email, verificationCode);
+
+                if (codeSaved) {
+                    JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                            "验证码已发送到您的邮箱，请查收", "成功", JOptionPane.INFORMATION_MESSAGE);
+
+                    // 禁用发送按钮60秒
+                    sendCodeButton.setEnabled(false);
+                    new Thread(() -> {
+                        try {
+                            for (int i = 60; i > 0; i--) {
+                                final int current = i;
+                                SwingUtilities.invokeLater(() ->
+                                        sendCodeButton.setText(current + "秒后重发"));
+                                Thread.sleep(1000);
+                            }
+                            SwingUtilities.invokeLater(() -> {
+                                sendCodeButton.setText("发送验证码");
+                                sendCodeButton.setEnabled(true);
+                            });
+                        } catch (InterruptedException ex) {
+                            ex.printStackTrace();
+                        }
+                    }).start();
+                } else {
+                    JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                            "保存验证码失败", "错误", JOptionPane.ERROR_MESSAGE);
+                }
+            } else {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "验证码发送失败，请检查邮箱地址或网络连接", "错误", JOptionPane.ERROR_MESSAGE);
+            }
+        }
+    }
+
+    private class ChangeCodeButtonListener implements ActionListener {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            String email = emailField.getText().trim();
+            String code = codeField.getText().trim();
+            String password = new String(passwordField.getPassword());
+            String confirmPassword = new String(confirmPasswordField.getPassword());
+
+            // 验证输入
+            if (email.isEmpty() || code.isEmpty() || password.isEmpty()) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "请填写所有字段", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            if (!password.equals(confirmPassword)) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "两次输入的密码不一致", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            if (!userService.validatePassword(password)) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "密码必须为6-10位，且包含大小写字母和数字", "错误", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            // 使用新的重置密码方法
+            if (userService.resetPasswordWithCode(email, code, password)) {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "密码重置成功!", "成功", JOptionPane.INFORMATION_MESSAGE);
+                goBackToLogin();
+            } else {
+                JOptionPane.showMessageDialog(ChangeCodeFrame.this,
+                        "重置失败，请检查验证码是否正确或是否已过期", "错误", JOptionPane.ERROR_MESSAGE);
+            }
+        }
+    }
+
+    private void goBackToLogin() {
+        loginFrame.setVisible(true);
+        this.dispose();
+    }
+}

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

@@ -63,8 +63,13 @@ public class LoginFrame extends JFrame{
         registerButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         registerButton.addActionListener(e -> openRegisterFrame());
 
+        JButton changeCodeButton = new JButton("忘记密码？");
+        changeCodeButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
+        changeCodeButton.addActionListener(e -> openChangeCodeFrame());
+
         buttonPanel.add(loginButton);
         buttonPanel.add(registerButton);
+        buttonPanel.add(changeCodeButton);
 
         mainPanel.add(buttonPanel, BorderLayout.SOUTH);
 
@@ -101,6 +106,12 @@ public class LoginFrame extends JFrame{
         this.setVisible(false);
     }
 
+    private void openChangeCodeFrame() {
+        ChangeCodeFrame changeCodeFrame = new ChangeCodeFrame(userService, this);
+        changeCodeFrame.setVisible(true);
+        this.setVisible(false);
+    }
+
     private void openMainFrame(String email) {
         User user = userService.getUser(email);
         // 这里先简单显示一个消息，后续可以扩展为主界面