From eb5c8a061da3d36e3ec2b01442854b4b3f2f5dd4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E9=BB=98=E6=B6=B5?=
 <15530826+wgll926@user.noreply.gitee.com>
Date: Sat, 11 Oct 2025 14:27:02 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=B3=A8=E5=86=8C?=
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Content-Transfer-Encoding: 8bit

---
 README.md                                     |  70 ++-
 pom.xml                                       |   8 +
 run_gui.bat                                   |  11 +
 .../mathsystemtogether/EmailCodeService.java  | 125 -----
 .../mathsystemtogether/ExamController.java    | 443 +++---------------
 .../example/mathsystemtogether/exam-view.fxml |  72 +--
 .../mathsystemtogether/mail.properties        |   9 -
 7 files changed, 140 insertions(+), 598 deletions(-)
 delete mode 100644 src/main/java/com/example/mathsystemtogether/EmailCodeService.java
 delete mode 100644 src/main/resources/com/example/mathsystemtogether/mail.properties

diff --git a/README.md b/README.md
index 98d86a0..0e20bb8 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,8 @@ mvn exec:java -Dexec.mainClass="com.example.mathsystemtogether.HelloApplication"
 
 ## 👤 用户账号
 
+### 预设测试账号
+
 系统预设了9个测试账号：
 
 | 用户名 | 密码 | 难度级别 | 题目类型 |
@@ -45,12 +47,54 @@ mvn exec:java -Dexec.mainClass="com.example.mathsystemtogether.HelloApplication"
 | 王五2  | 123  | 高中     | 三角函数运算 |
 | 王五3  | 123  | 高中     | 三角函数运算 |
 
+### 新用户注册
+
+系统支持新用户注册功能：
+
+1. **点击注册按钮**：在登录界面点击"📝 注册"按钮
+2. **填写注册信息**：
+   - 用户名（至少3个字符）
+   - 密码（至少6个字符）
+   - 确认密码
+   - 邮箱地址
+   - 难度级别选择
+3. **邮箱验证**：
+   - 点击"📤 发送验证码"获取验证码
+   - 输入收到的6位数字验证码
+   - 验证码有效期为5分钟
+4. **完成注册**：点击"🚀 注册"完成账户创建
+5. **自动跳转**：注册成功后自动返回登录界面
+
+**注意**：
+- 用户名不能重复
+- 邮箱地址格式必须正确
+- 验证码通过真实邮件发送
+- 用户数据保存在本地 `user_data.txt` 文件中
+
+### 邮件服务配置
+
+系统支持真实的邮箱验证码功能，已配置QQ邮箱：
+
+- **邮箱地址**：1961004835@qq.com
+- **SMTP服务器**：smtp.qq.com:587
+- **配置文件**：`src/main/resources/mail.properties`
+
+如需修改邮箱配置，请编辑 `mail.properties` 文件。
+
 ## 🎮 使用流程
 
-### 1. 用户登录
+### 1. 用户登录或注册
+
+**登录现有账户：**
 - 输入用户名（如：张三1）
 - 输入密码（123）
-- 点击"登录"按钮
+- 点击"🚀 登录"按钮
+
+**注册新账户：**
+- 点击"📝 注册"按钮
+- 填写注册信息（用户名、密码、邮箱、难度级别）
+- 获取并输入邮箱验证码
+- 点击"🚀 注册"完成账户创建
 
 ### 2. 设置考试
 - 选择难度级别（小学/初中/高中）
@@ -125,10 +169,16 @@ MathSystemTogether/
 ├── src/main/java/com/example/mathsystemtogether/
 │   ├── HelloApplication.java          # 主应用程序入口
 │   ├── ExamController.java            # 考试系统控制器
+│   ├── RegisterController.java        # 注册功能控制器
+│   ├── EmailService.java              # 邮件服务类
 │   ├── Question.java                  # 选择题数据模型
 │   └── ChoiceQuestionGenerator.java   # 选择题生成器
 ├── src/main/resources/com/example/mathsystemtogether/
-│   └── exam-view.fxml                # 考试界面布局文件
+│   ├── exam-view.fxml                # 考试界面布局文件
+│   └── register-view.fxml            # 注册界面布局文件
+├── src/main/resources/
+│   └── mail.properties                # 邮件服务配置文件
+├── user_data.txt                     # 用户数据存储文件
 ├── papers/                           # 题目文件存储目录
 │   ├── 张三1/                        # 用户文件夹
 │   ├── 李四1/
@@ -140,6 +190,12 @@ MathSystemTogether/
 
 ## 🔧 核心功能
 
+### 用户管理功能
+- **用户注册**：支持新用户注册，包含邮箱验证
+- **用户登录**：支持预设账号和注册账号登录
+- **数据存储**：用户信息保存在本地文件中
+- **数据验证**：用户名唯一性、邮箱格式验证
+
 ### 题目生成算法
 - **小学**：基础四则运算（+、-、×、÷）
 - **初中**：平方运算（²）、开方运算（√）
@@ -156,6 +212,14 @@ MathSystemTogether/
 - 进度实时更新
 - 结果自动统计
 
+### 邮箱验证功能
+- **真实邮件发送**：通过SMTP服务器发送验证码邮件
+- **验证码生成**：6位数字随机验证码
+- **时效控制**：验证码5分钟有效期
+- **防重复发送**：60秒倒计时限制
+- **格式验证**：邮箱地址格式检查
+- **HTML邮件**：美观的HTML格式验证码邮件
+
 ## 📊 考试结果
 
 系统会显示：
diff --git a/pom.xml b/pom.xml
index 579e6ad..7ba6d4d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,6 +61,14 @@
                     <target>21</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <mainClass>com.example.mathsystemtogether.HelloApplication</mainClass>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.openjfx</groupId>
                 <artifactId>javafx-maven-plugin</artifactId>
diff --git a/run_gui.bat b/run_gui.bat
index c9ec487..c25cf96 100644
--- a/run_gui.bat
+++ b/run_gui.bat
@@ -7,11 +7,22 @@ echo 系统功能：
 echo - 支持小学、初中、高中三个难度级别
 echo - 选择题形式答题
 echo - 自动评分和结果统计
+echo - 用户注册功能（邮箱验证码）
+echo - 本地用户数据存储
 echo.
 echo 测试账号：
 echo - 小学：张三1/123, 张三2/123, 张三3/123
 echo - 初中：李四1/123, 李四2/123, 李四3/123  
 echo - 高中：王五1/123, 王五2/123, 王五3/123
 echo.
+echo 新用户注册：
+echo - 点击"注册"按钮创建新账户
+echo - 使用邮箱获取验证码
+echo - 选择适合的难度级别
+echo.
+echo 邮件服务配置：
+echo - 已配置QQ邮箱：1961004835@qq.com
+echo - 配置文件：src/main/resources/mail.properties
+echo.
 mvn exec:java -Dexec.mainClass="com.example.mathsystemtogether.HelloApplication"
 pause
diff --git a/src/main/java/com/example/mathsystemtogether/EmailCodeService.java b/src/main/java/com/example/mathsystemtogether/EmailCodeService.java
deleted file mode 100644
index 0bdf163..0000000
--- a/src/main/java/com/example/mathsystemtogether/EmailCodeService.java
+++ /dev/null
@@ -1,125 +0,0 @@
-package com.example.mathsystemtogether;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.util.Map;
-import java.util.Properties;
-import java.util.Random;
-import java.util.concurrent.ConcurrentHashMap;
-import jakarta.mail.Authenticator;
-import jakarta.mail.Message;
-import jakarta.mail.MessagingException;
-import jakarta.mail.PasswordAuthentication;
-import jakarta.mail.Session;
-import jakarta.mail.Transport;
-import jakarta.mail.internet.InternetAddress;
-import jakarta.mail.internet.MimeMessage;
-
-/**
- * 简单的内存版邮箱验证码服务（单进程适用）。
- * 如需真实发信，可将 sendEmail 方法接入 SMTP 或第三方服务。
- */
-public class EmailCodeService {
-
-    private static class CodeRecord {
-        final String code;
-        final Instant expireAt;
-
-        CodeRecord(String code, Instant expireAt) {
-            this.code = code;
-            this.expireAt = expireAt;
-        }
-    }
-
-    private final Map<String, CodeRecord> emailToCode = new ConcurrentHashMap<>();
-    private final Map<String, Instant> emailToLastSend = new ConcurrentHashMap<>();
-    private final Random random = new Random();
-
-    private final Duration codeTtl = Duration.ofMinutes(5);
-    private final Duration rateLimit = Duration.ofSeconds(60);
-
-    public void sendCode(String email) {
-        Instant now = Instant.now();
-        Instant last = emailToLastSend.get(email);
-        if (last != null && Duration.between(last, now).compareTo(rateLimit) < 0) {
-            long waitSeconds = rateLimit.minus(Duration.between(last, now)).getSeconds();
-            throw new IllegalStateException("请求过于频繁，请于" + waitSeconds + "秒后重试");
-        }
-
-        String code = generateCode();
-        emailToCode.put(email, new CodeRecord(code, now.plus(codeTtl)));
-        emailToLastSend.put(email, now);
-
-        // 使用 SMTP 发送邮件（QQ邮箱）
-        sendEmail(email, code);
-    }
-
-    public boolean verifyCode(String email, String code) {
-        CodeRecord record = emailToCode.get(email);
-        if (record == null) return false;
-        if (Instant.now().isAfter(record.expireAt)) {
-            emailToCode.remove(email);
-            return false;
-        }
-        boolean ok = record.code.equals(code);
-        if (ok) {
-            emailToCode.remove(email); // 一次性
-        }
-        return ok;
-    }
-
-    private String generateCode() {
-        return String.valueOf(100000 + random.nextInt(900000));
-    }
-
-    private void sendEmail(String email, String code) {
-        // 从资源文件读取发件配置
-        Properties conf = new Properties();
-        try {
-            conf.load(EmailCodeService.class.getResourceAsStream("/com/example/mathsystemtogether/mail.properties"));
-        } catch (Exception e) {
-            System.out.println("[EmailCodeService] 读取 mail.properties 失败，改为控制台输出验证码：" + code);
-            return;
-        }
-
-        String from = conf.getProperty("mail.from", "");
-        String authCode = conf.getProperty("mail.authCode", "");
-        String host = conf.getProperty("mail.host", "smtp.qq.com");
-        String port = conf.getProperty("mail.port", "465");
-        boolean ssl = Boolean.parseBoolean(conf.getProperty("mail.ssl", "true"));
-        String subject = conf.getProperty("mail.subject", "您的验证码");
-        String bodyPrefix = conf.getProperty("mail.bodyPrefix", "验证码：");
-        String bodySuffix = conf.getProperty("mail.bodySuffix", "，5分钟内有效。");
-
-        if (from.isEmpty() || authCode.isEmpty()) {
-            System.out.println("[EmailCodeService] 未配置 mail.from 或 mail.authCode，改为控制台输出验证码：" + code);
-            return;
-        }
-
-        Properties props = new Properties();
-        props.put("mail.smtp.host", host);
-        props.put("mail.smtp.port", port);
-        props.put("mail.smtp.auth", "true");
-        props.put("mail.smtp.ssl.enable", String.valueOf(ssl));
-
-        Session session = Session.getInstance(props, new Authenticator() {
-            @Override
-            protected PasswordAuthentication getPasswordAuthentication() {
-                return new PasswordAuthentication(from, authCode);
-            }
-        });
-
-        try {
-            Message message = new MimeMessage(session);
-            message.setFrom(new InternetAddress(from));
-            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(email));
-            message.setSubject(subject);
-            message.setText(bodyPrefix + code + bodySuffix);
-            Transport.send(message);
-        } catch (MessagingException e) {
-            throw new IllegalStateException("邮件发送失败：" + e.getMessage(), e);
-        }
-    }
-}
-
-
diff --git a/src/main/java/com/example/mathsystemtogether/ExamController.java b/src/main/java/com/example/mathsystemtogether/ExamController.java
index c994773..cb60676 100644
--- a/src/main/java/com/example/mathsystemtogether/ExamController.java
+++ b/src/main/java/com/example/mathsystemtogether/ExamController.java
@@ -8,35 +8,22 @@ import javafx.scene.layout.VBox;
 import javafx.stage.Stage;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
-import java.time.Instant;
 import java.util.*;
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 
 /**
  * 考试系统控制器
  */
 public class ExamController {
-    @FXML private VBox registerPanel;
-    @FXML private TextField registerUsernameField;
-    @FXML private PasswordField registerPasswordField;
-    @FXML private TextField registerEmailField;
-    @FXML private TextField registerCodeField;
-    @FXML private Button sendRegisterCodeButton;
-    @FXML private Button verifyRegisterCodeButton;
-    @FXML private Label registerStatusLabel;
-
 
     // 登录界面控件
     @FXML private TextField usernameField;
     @FXML private PasswordField passwordField;
     @FXML private Button loginButton;
-    @FXML private TextField emailField;
-    @FXML private TextField emailCodeField;
-    @FXML private Button sendCodeButton;
-    @FXML private Button verifyCodeButton;
-    @FXML private Label emailStatusLabel;
-    @FXML private Label loginStatusLabel;
     @FXML private Button registerButton;
-
+    @FXML private Label loginStatusLabel;
 
     // 考试设置界面控件
     @FXML private VBox examSetupPanel;
@@ -47,36 +34,12 @@ public class ExamController {
     @FXML private Button logoutButton;
     @FXML private Label statusLabel;
 
-    // 添加设置密码面板相关控件引用（需要在FXML中添加对应控件）
-    @FXML private VBox setPasswordPanel;
-    @FXML private PasswordField setPasswordField;
-    @FXML private PasswordField confirmPasswordField;
-    @FXML private Button confirmSetPasswordButton;
-    @FXML private Label setPasswordStatusLabel;
-
-    // 添加修改密码面板相关控件引用
-    @FXML private VBox changePasswordPanel;
-    @FXML private PasswordField oldPasswordField;
-    @FXML private PasswordField newPasswordField;
-    @FXML private PasswordField confirmNewPasswordField;
-    @FXML private Button confirmChangePasswordButton;
-    @FXML private Button cancelChangePasswordButton;
-    @FXML private Label changePasswordStatusLabel;
-
-    // 添加修改密码按钮引用
-    @FXML private Button changePasswordButton;
     // 数据成员
     private Account currentAccount;
     private List<Question> examQuestions;
-    private int currentQuestionIndex = 0;
-    private Map<Integer, String> userAnswers = new HashMap<>();
     private ChoiceQuestionGenerator questionGenerator;
     private final Map<String, Account> userMap = new HashMap<>();
-    private final EmailCodeService emailCodeService = new EmailCodeService();
-    private boolean emailVerified = false;
-    private final Map<String, RegisterInfo> pendingRegistrations = new HashMap<>();
-
-
+    private static final String USER_DATA_FILE = "user_data.txt";
 
     // 常量定义
     private static final int MIN_QUESTIONS = 5;
@@ -85,344 +48,12 @@ public class ExamController {
     @FXML
     public void initialize() {
         initAccounts();
+        loadUserDataFromFile();
         setupLevelComboBox();
         examSetupPanel.setVisible(false);
         questionCountField.setText("10");
-
-        if (registerPanel != null) {
-            registerPanel.setVisible(false);
-        }
-        if (setPasswordPanel != null) {
-            setPasswordPanel.setVisible(false);
-        }
-        if (changePasswordPanel != null) {
-            changePasswordPanel.setVisible(false);
-        }
-    }
-    // 添加内部类用于存储注册信息
-    static class RegisterInfo {
-        final String username;
-        String password;
-        final String email;
-        final String registerCode;
-        final Instant expireTime;
-        boolean codeVerified;
-
-        RegisterInfo(String username, String password, String email, String registerCode) {
-            this.username = username;
-            this.password = password;
-            this.email = email;
-            this.registerCode = registerCode;
-            this.expireTime = Instant.now().plusSeconds(300); // 5分钟有效期
-            this.codeVerified = false;
-        }
-
-        public boolean isExpired() {
-            return Instant.now().isAfter(expireTime);
-        }
-    }
-
-
-@FXML
-private void handleVerifyRegisterCode() {
-    String email = registerEmailField.getText().trim();
-    String code = registerCodeField.getText().trim();
-
-    if (email.isEmpty() || code.isEmpty()) {
-        registerStatusLabel.setText("请填写邮箱和验证码");
-        registerStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    // 使用邮箱验证码服务验证
-    boolean isValid = emailCodeService.verifyCode(email, code);
-
-    if (isValid) {
-        // 检查是否有待处理的注册信息
-        RegisterInfo registerInfo = pendingRegistrations.get(email);
-        if (registerInfo != null) {
-            registerInfo.codeVerified = true;
-            registerStatusLabel.setText("验证码验证成功，请设置密码");
-            registerStatusLabel.setStyle("-fx-text-fill: green;");
-
-            // 显示设置密码面板
-            if (setPasswordPanel != null) {
-                setPasswordPanel.setVisible(true);
-            }
-        } else {
-            registerStatusLabel.setText("注册信息丢失，请重新注册");
-            registerStatusLabel.setStyle("-fx-text-fill: red;");
-        }
-    } else {
-        registerStatusLabel.setText("验证码错误或已过期");
-        registerStatusLabel.setStyle("-fx-text-fill: red;");
-    }
-}
-
-
-
-    @FXML
-    private void showRegisterPanel() {
-        if (registerPanel != null) {
-            registerPanel.setVisible(true);
-        }
-    }
-
-    @FXML
-    private void hideRegisterPanel() {
-        // 隐藏注册面板
-        if (registerPanel != null) {
-            registerPanel.setVisible(false);
-        }
-
-        // 显示登录面板相关组件
-        if (usernameField != null) usernameField.setVisible(true);
-        if (passwordField != null) passwordField.setVisible(true);
-        if (emailField != null) emailField.setVisible(true);
-        if (emailCodeField != null) emailCodeField.setVisible(true);
-        if (sendCodeButton != null) sendCodeButton.setVisible(true);
-        if (verifyCodeButton != null) verifyCodeButton.setVisible(true);
-        if (loginButton != null) loginButton.setVisible(true);
-        if (emailStatusLabel != null) emailStatusLabel.setVisible(true);
-        if (loginStatusLabel != null) loginStatusLabel.setVisible(true);
-
-        // 清空注册相关字段
-        if (registerUsernameField != null) registerUsernameField.clear();
-        if (registerEmailField != null) registerEmailField.clear();
-        if (registerCodeField != null) registerCodeField.clear();
-        if (registerStatusLabel != null) registerStatusLabel.setText("");
-    }
-    @FXML
-    private void showSetPasswordPanel() {
-        if (setPasswordPanel != null) {
-            setPasswordPanel.setVisible(true);
-        }
-    }
-
-    /**
-     * 隐藏设置密码面板
-     */
-    @FXML
-    private void hideSetPasswordPanel() {
-        if (setPasswordPanel != null) {
-            setPasswordPanel.setVisible(false);
-        }
-    }
-
-    /**
-     * 确认设置密码
-     */
-    @FXML
-private void handleSetPassword() {
-    String password = setPasswordField.getText();
-    String confirmPassword = confirmPasswordField.getText();
-
-    if (password.isEmpty() || confirmPassword.isEmpty()) {
-        setPasswordStatusLabel.setText("请输入密码");
-        setPasswordStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    if (!password.equals(confirmPassword)) {
-        setPasswordStatusLabel.setText("两次输入的密码不一致");
-        setPasswordStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    if (!isValidPassword(password)) {
-        setPasswordStatusLabel.setText("密码必须为6-10位，包含大小写字母和数字");
-        setPasswordStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    // 获取邮箱（从注册邮箱字段）
-    String email = registerEmailField.getText().trim();
-    RegisterInfo registerInfo = pendingRegistrations.get(email);
-
-    if (registerInfo != null) {
-        // 更新注册信息中的密码
-        registerInfo.password = password;
-
-        // 完成注册
-        userMap.put(registerInfo.username, new Account(registerInfo.username, password, Level.小学));
-        pendingRegistrations.remove(email);
-
-        setPasswordStatusLabel.setText("注册成功！可以使用新账号登录");
-        setPasswordStatusLabel.setStyle("-fx-text-fill: green;");
-
-        // 清空所有注册相关输入框
-        registerUsernameField.clear();
-        registerEmailField.clear();
-        registerCodeField.clear();
-        setPasswordField.clear();
-        confirmPasswordField.clear();
-
-        // 隐藏面板
-        if (setPasswordPanel != null) {
-            setPasswordPanel.setVisible(false);
-        }
-        if (registerPanel != null) {
-            registerPanel.setVisible(false);
-        }
-
-        // 显示登录面板
-        hideRegisterPanel();
-    } else {
-        setPasswordStatusLabel.setText("注册信息丢失，请重新注册");
-        setPasswordStatusLabel.setStyle("-fx-text-fill: red;");
     }
-}
 
-// 添加注册按钮事件处理方法
-@FXML
-private void handleRegisterUser() {
-    String username = registerUsernameField.getText().trim();
-    String email = registerEmailField.getText().trim();
-
-    if (username.isEmpty() || email.isEmpty()) {
-        registerStatusLabel.setText("请填写用户名和邮箱");
-        registerStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    if (userMap.containsKey(username)) {
-        registerStatusLabel.setText("用户名已存在");
-        registerStatusLabel.setStyle("-fx-text-fill: red;");
-        return;
-    }
-
-    try {
-        // 发送注册验证码
-        emailCodeService.sendCode(email);
-
-        // 生成验证码并创建注册信息（密码将在后续设置）
-        String tempPassword = ""; // 临时空密码
-        RegisterInfo registerInfo = new RegisterInfo(username, tempPassword, email, "");
-        pendingRegistrations.put(email, registerInfo);
-
-        registerStatusLabel.setText("注册验证码已发送到邮箱，请查收");
-        registerStatusLabel.setStyle("-fx-text-fill: green;");
-    } catch (Exception e) {
-        registerStatusLabel.setText("发送验证码失败：" + e.getMessage());
-        registerStatusLabel.setStyle("-fx-text-fill: red;");
-    }
-}
-
-
-    /**
-     * 显示修改密码面板
-     */
-    @FXML
-    private void showChangePasswordPanel() {
-        if (changePasswordPanel != null && currentAccount != null) {
-            changePasswordPanel.setVisible(true);
-            changePasswordPanel.toFront();
-        }
-    }
-
-    /**
-     * 隐藏修改密码面板
-     */
-    @FXML
-    private void hideChangePasswordPanel() {
-        if (changePasswordPanel != null) {
-            changePasswordPanel.setVisible(false);
-            // 清空输入框
-            oldPasswordField.clear();
-            newPasswordField.clear();
-            confirmNewPasswordField.clear();
-            changePasswordStatusLabel.setText("");
-        }
-    }
-
-    /**
-     * 确认修改密码
-     */
-    @FXML
-    private void handleChangePassword() {
-        if (currentAccount == null) {
-            changePasswordStatusLabel.setText("请先登录");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: red;");
-            return;
-        }
-
-        String oldPassword = oldPasswordField.getText();
-        String newPassword = newPasswordField.getText();
-        String confirmNewPassword = confirmNewPasswordField.getText();
-
-        if (oldPassword.isEmpty() || newPassword.isEmpty() || confirmNewPassword.isEmpty()) {
-            changePasswordStatusLabel.setText("请填写所有字段");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: red;");
-            return;
-        }
-
-        // 验证原密码
-        if (!currentAccount.password.equals(oldPassword)) {
-            changePasswordStatusLabel.setText("原密码错误");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: red;");
-            return;
-        }
-
-        // 验证新密码一致性
-        if (!newPassword.equals(confirmNewPassword)) {
-            changePasswordStatusLabel.setText("新密码两次输入不一致");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: red;");
-            return;
-        }
-
-        // 验证新密码强度
-        if (!isValidPassword(newPassword)) {
-            changePasswordStatusLabel.setText("新密码必须为6-10位，包含大小写字母和数字");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: red;");
-            return;
-        }
-
-        // 更新密码
-        Account account = userMap.get(currentAccount.username);
-        if (account != null) {
-            account.password = newPassword; // 注意：需要修改Account类使password可修改
-            currentAccount.password = newPassword;
-            changePasswordStatusLabel.setText("密码修改成功");
-            changePasswordStatusLabel.setStyle("-fx-text-fill: green;");
-
-            // 清空输入框
-            oldPasswordField.clear();
-            newPasswordField.clear();
-            confirmNewPasswordField.clear();
-
-            // 隐藏面板
-            hideChangePasswordPanel();
-        }
-    }
-
-    /**
-     * 验证密码强度
-     * @param password 密码
-     * @return 是否符合要求
-     */
-    private boolean isValidPassword(String password) {
-        // 长度检查
-        if (password.length() < 6 || password.length() > 10) {
-            return false;
-        }
-
-        // 检查是否包含大小写字母和数字
-        boolean hasUpper = false;
-        boolean hasLower = false;
-        boolean hasDigit = false;
-
-        for (char c : password.toCharArray()) {
-            if (Character.isUpperCase(c)) {
-                hasUpper = true;
-            } else if (Character.isLowerCase(c)) {
-                hasLower = true;
-            } else if (Character.isDigit(c)) {
-                hasDigit = true;
-            }
-        }
-
-        return hasUpper && hasLower && hasDigit;
-    }
     private void initAccounts() {
         // 小学三个账号
         userMap.put("张三1", new Account("张三1", "123", Level.小学));
@@ -444,6 +75,34 @@ private void handleRegisterUser() {
         levelComboBox.setValue("小学");
     }
 
+    private void loadUserDataFromFile() {
+        try {
+            if (!Files.exists(Paths.get(USER_DATA_FILE))) {
+                return;
+            }
+            
+            List<String> lines = Files.readAllLines(Paths.get(USER_DATA_FILE));
+            for (String line : lines) {
+                String[] parts = line.split("\\|");
+                if (parts.length >= 4) {
+                    String username = parts[0];
+                    String password = parts[1];
+                    String levelStr = parts[3];
+                    
+                    Level level;
+                    try {
+                        level = Level.valueOf(levelStr);
+                    } catch (IllegalArgumentException e) {
+                        level = Level.小学; // 默认级别
+                    }
+                    
+                    userMap.put(username, new Account(username, password, level));
+                }
+            }
+        } catch (IOException e) {
+            // 加载用户数据失败，静默处理
+        }
+    }
 
     @FXML
     private void handleLogin() {
@@ -464,28 +123,39 @@ private void handleRegisterUser() {
             examSetupPanel.setVisible(true);
             loginStatusLabel.setText("登录成功！");
             loginStatusLabel.setStyle("-fx-text-fill: green;");
-
         } else {
             loginStatusLabel.setText("用户名或密码错误");
             loginStatusLabel.setStyle("-fx-text-fill: red;");
         }
     }
 
+    @FXML
+    private void handleRegister() {
+        try {
+            // 打开注册界面
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("register-view.fxml"));
+            Scene scene = new Scene(loader.load(), 800, 800);
+            Stage registerStage = new Stage();
+            registerStage.setTitle("数学考试系统 - 用户注册");
+            registerStage.setScene(scene);
+            registerStage.setResizable(false);
+            registerStage.show();
+            
+        } catch (Exception e) {
+            loginStatusLabel.setText("打开注册界面失败：" + e.getMessage());
+            loginStatusLabel.setStyle("-fx-text-fill: red;");
+        }
+    }
+
     @FXML
     private void handleLogout() {
         currentAccount = null;
         examQuestions = null;
-        currentQuestionIndex = 0;
-        userAnswers.clear();
         examSetupPanel.setVisible(false);
         usernameField.clear();
         passwordField.clear();
         loginStatusLabel.setText("");
         statusLabel.setText("");
-        emailVerified = false;
-        if (emailField != null) emailField.clear();
-        if (emailCodeField != null) emailCodeField.clear();
-        if (emailStatusLabel != null) emailStatusLabel.setText("");
     }
 
     @FXML
@@ -508,8 +178,6 @@ private void handleRegisterUser() {
             String selectedLevel = levelComboBox.getValue();
             ChoiceQuestionGenerator.Level level = ChoiceQuestionGenerator.Level.valueOf(selectedLevel);
 
-
-
             // 生成考试题目
             questionGenerator = new ChoiceQuestionGenerator();
             examQuestions = questionGenerator.generateQuestions(level, count);
@@ -529,10 +197,6 @@ private void handleRegisterUser() {
         }
     }
 
-
-
-
-
     private void startExam() {
         try {
             // 打开专门的考试界面
@@ -560,7 +224,6 @@ private void handleRegisterUser() {
         }
     }
 
-
     // 内部类
     static class Account {
         final String username;
@@ -577,4 +240,4 @@ private void handleRegisterUser() {
     enum Level {
         小学, 初中, 高中
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/resources/com/example/mathsystemtogether/exam-view.fxml b/src/main/resources/com/example/mathsystemtogether/exam-view.fxml
index 265d79f..7f86954 100644
--- a/src/main/resources/com/example/mathsystemtogether/exam-view.fxml
+++ b/src/main/resources/com/example/mathsystemtogether/exam-view.fxml
@@ -57,7 +57,7 @@
             </HBox>
              <HBox spacing="15.0" alignment="CENTER_LEFT">
                  <Button fx:id="loginButton" text="🚀 登录" onAction="#handleLogin" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-                 <Button fx:id="registerButton" text="📝 注册" onAction="#showRegisterPanel" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
+                 <Button fx:id="registerButton" text="📝 注册" onAction="#handleRegister" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
                  <Label fx:id="loginStatusLabel" textFill="#8B0000" style="-fx-font-weight: bold;"/>
              </HBox>
 
@@ -93,78 +93,8 @@
 
             <Label fx:id="statusLabel" textFill="#4B0082" style="-fx-font-weight: bold; -fx-font-size: 14;"/>
          </VBox>
-          <!-- 在考试设置区域下方添加修改密码按钮 -->
-          <HBox spacing="15.0" alignment="CENTER_LEFT">
-              <Button fx:id="changePasswordButton" text="🔑 修改密码" onAction="#showChangePasswordPanel" style="-fx-background-color: linear-gradient(to right, #FF8C00, #FFA500); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-          </HBox>
 
-          <!-- 添加设置密码面板 -->
-          <VBox fx:id="setPasswordPanel" spacing="15.0" style="-fx-background-color: linear-gradient(to bottom, #F8F0FF, #E6E6FA, #D8BFD8); -fx-padding: 20; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.3), 15, 0, 0, 5);" visible="false">
-              <Label text="🔐 设置密码" textFill="#4B0082" textAlignment="CENTER">
-                  <font>
-                      <Font name="System Bold" size="18.0"/>
-                  </font>
-              </Label>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Label text="🔑 密码:" minWidth="80.0" textFill="#6A0DAD">
-                      <font>
-                          <Font name="System Bold" size="14.0"/>
-                      </font>
-                  </Label>
-                  <PasswordField fx:id="setPasswordField" promptText="6-10位，包含大小写字母和数字" prefWidth="180.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
-              </HBox>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Label text="✅ 确认密码:" minWidth="80.0" textFill="#6A0DAD">
-                      <font>
-                          <Font name="System Bold" size="14.0"/>
-                      </font>
-                  </Label>
-                  <PasswordField fx:id="confirmPasswordField" promptText="请再次输入密码" prefWidth="180.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
-              </HBox>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Button fx:id="confirmSetPasswordButton" text="✅ 确认设置" onAction="#handleSetPassword" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-                  <Button text="❌ 取消" onAction="#hideSetPasswordPanel" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-                  <Label fx:id="setPasswordStatusLabel" textFill="#8B0000" style="-fx-font-weight: bold;"/>
-              </HBox>
-          </VBox>
 
-          <!-- 添加修改密码面板 -->
-          <VBox fx:id="changePasswordPanel" spacing="15.0" style="-fx-background-color: linear-gradient(to bottom, #F8F0FF, #E6E6FA, #D8BFD8); -fx-padding: 20; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.3), 15, 0, 0, 5);" visible="false">
-              <Label text="🔑 修改密码" textFill="#4B0082" textAlignment="CENTER">
-                  <font>
-                      <Font name="System Bold" size="18.0"/>
-                  </font>
-              </Label>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Label text="🔒 原密码:" minWidth="80.0" textFill="#6A0DAD">
-                      <font>
-                          <Font name="System Bold" size="14.0"/>
-                      </font>
-                  </Label>
-                  <PasswordField fx:id="oldPasswordField" promptText="请输入原密码" prefWidth="180.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
-              </HBox>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Label text="🆕 新密码:" minWidth="80.0" textFill="#6A0DAD">
-                      <font>
-                          <Font name="System Bold" size="14.0"/>
-                      </font>
-                  </Label>
-                  <PasswordField fx:id="newPasswordField" promptText="6-10位，包含大小写字母和数字" prefWidth="180.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
-              </HBox>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Label text="✅ 确认新密码:" minWidth="80.0" textFill="#6A0DAD">
-                      <font>
-                          <Font name="System Bold" size="14.0"/>
-                      </font>
-                  </Label>
-                  <PasswordField fx:id="confirmNewPasswordField" promptText="请再次输入新密码" prefWidth="180.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
-              </HBox>
-              <HBox spacing="15.0" alignment="CENTER_LEFT">
-                  <Button fx:id="confirmChangePasswordButton" text="✅ 确认修改" onAction="#handleChangePassword" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-                  <Button fx:id="cancelChangePasswordButton" text="❌ 取消" onAction="#hideChangePasswordPanel" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
-                  <Label fx:id="changePasswordStatusLabel" textFill="#8B0000" style="-fx-font-weight: bold;"/>
-              </HBox>
-          </VBox>
 
          <!-- 使用说明 -->
          <VBox spacing="15.0" style="-fx-background-color: linear-gradient(to bottom, #F8F0FF, #E6E6FA, #D8BFD8); -fx-padding: 20; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.2), 10, 0, 0, 3);">
diff --git a/src/main/resources/com/example/mathsystemtogether/mail.properties b/src/main/resources/com/example/mathsystemtogether/mail.properties
deleted file mode 100644
index b82b7ad..0000000
--- a/src/main/resources/com/example/mathsystemtogether/mail.properties
+++ /dev/null
@@ -1,9 +0,0 @@
-mail.from=1961004835@qq.com
-mail.authCode=nixyzbpbcrekhgfe
-mail.host=smtp.qq.com
-mail.port=465
-mail.ssl=true
-mail.subject=您的验证码
-mail.bodyPrefix=验证码：
-mail.bodySuffix=，5分钟内有效。
-

From 4ebc155285fbe994b7ba4ae12a05e6b417a5ab79 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E9=BB=98=E6=B6=B5?=
 <15530826+wgll926@user.noreply.gitee.com>
Date: Sat, 11 Oct 2025 15:13:05 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=B3=A8=E5=86=8C?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD=E5=B9=B6=E5=AE=8C=E5=96=84=E9=82=AE=E7=AE=B1?=
 =?UTF-8?q?=E9=AA=8C=E8=AF=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../mathsystemtogether/EmailService.java      | 186 +++++++++++
 .../RegisterController.java                   | 310 ++++++++++++++++++
 .../mathsystemtogether/register-view.fxml     | 131 ++++++++
 src/main/resources/mail.properties            |  43 +++
 user_data.txt                                 |   1 +
 5 files changed, 671 insertions(+)
 create mode 100644 src/main/java/com/example/mathsystemtogether/EmailService.java
 create mode 100644 src/main/java/com/example/mathsystemtogether/RegisterController.java
 create mode 100644 src/main/resources/com/example/mathsystemtogether/register-view.fxml
 create mode 100644 src/main/resources/mail.properties
 create mode 100644 user_data.txt

diff --git a/src/main/java/com/example/mathsystemtogether/EmailService.java b/src/main/java/com/example/mathsystemtogether/EmailService.java
new file mode 100644
index 0000000..b5f5155
--- /dev/null
+++ b/src/main/java/com/example/mathsystemtogether/EmailService.java
@@ -0,0 +1,186 @@
+package com.example.mathsystemtogether;
+
+import jakarta.mail.*;
+import jakarta.mail.internet.*;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+import java.util.Random;
+
+/**
+ * 邮件服务类
+ * 负责发送验证码邮件
+ */
+public class EmailService {
+    
+    private String smtpHost;
+    private String smtpPort;
+    private String fromEmail;
+    private String fromPassword;
+    private Session session;
+    private boolean isConfigured = false;
+    
+    public EmailService() {
+        loadConfiguration();
+        if (isConfigured) {
+            initializeSession();
+        }
+    }
+    
+    /**
+     * 从配置文件加载邮件配置
+     */
+    private void loadConfiguration() {
+        try (InputStream input = getClass().getClassLoader().getResourceAsStream("mail.properties")) {
+        if (input == null) {
+            return;
+        }
+            
+            Properties props = new Properties();
+            props.load(input);
+            
+            smtpHost = props.getProperty("mail.smtp.host");
+            smtpPort = props.getProperty("mail.smtp.port");
+            fromEmail = props.getProperty("mail.from.email");
+            fromPassword = props.getProperty("mail.from.password");
+            
+            // 检查配置是否完整
+            if (smtpHost != null && smtpPort != null && fromEmail != null && fromPassword != null) {
+                isConfigured = true;
+            }
+            
+        } catch (IOException e) {
+            // 配置加载失败，静默处理
+        }
+    }
+    
+    /**
+     * 初始化邮件会话
+     */
+    private void initializeSession() {
+        if (!isConfigured) {
+            return;
+        }
+        
+        Properties props = new Properties();
+        props.put("mail.smtp.host", smtpHost);
+        props.put("mail.smtp.port", smtpPort);
+        props.put("mail.smtp.auth", "true");
+        props.put("mail.smtp.starttls.enable", "true");
+        props.put("mail.smtp.ssl.trust", smtpHost);
+        
+        // 创建认证器
+        Authenticator authenticator = new Authenticator() {
+            @Override
+            protected PasswordAuthentication getPasswordAuthentication() {
+                return new PasswordAuthentication(fromEmail, fromPassword);
+            }
+        };
+        
+        session = Session.getInstance(props, authenticator);
+    }
+    
+    /**
+     * 生成6位数字验证码
+     */
+    public String generateVerificationCode() {
+        Random random = new Random();
+        return String.format("%06d", random.nextInt(1000000));
+    }
+    
+    /**
+     * 发送验证码邮件
+     * @param toEmail 接收方邮箱
+     * @param verificationCode 验证码
+     * @return 发送是否成功
+     */
+    public boolean sendVerificationCode(String toEmail, String verificationCode) {
+        if (!isConfigured) {
+            return false;
+        }
+        
+        try {
+            Message message = new MimeMessage(session);
+            message.setFrom(new InternetAddress(fromEmail));
+            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail));
+            message.setSubject("数学考试系统 - 邮箱验证码");
+            
+            // 创建邮件内容
+            String htmlContent = createEmailContent(verificationCode);
+            message.setContent(htmlContent, "text/html; charset=UTF-8");
+            
+            // 发送邮件
+            Transport.send(message);
+            return true;
+            
+        } catch (MessagingException e) {
+            return false;
+        }
+    }
+    
+    /**
+     * 创建邮件HTML内容
+     */
+    private String createEmailContent(String verificationCode) {
+        StringBuilder html = new StringBuilder();
+        html.append("<!DOCTYPE html>");
+        html.append("<html>");
+        html.append("<head>");
+        html.append("<meta charset=\"UTF-8\">");
+        html.append("<title>邮箱验证码</title>");
+        html.append("<style>");
+        html.append("body { font-family: Arial, sans-serif; background-color: #f5f5f5; margin: 0; padding: 20px; }");
+        html.append(".container { max-width: 600px; margin: 0 auto; background-color: white; border-radius: 10px; box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); overflow: hidden; }");
+        html.append(".header { background: linear-gradient(135deg, #8A2BE2, #9932CC); color: white; padding: 30px; text-align: center; }");
+        html.append(".header h1 { margin: 0; font-size: 24px; }");
+        html.append(".content { padding: 30px; }");
+        html.append(".verification-code { background-color: #f8f9fa; border: 2px solid #8A2BE2; border-radius: 8px; padding: 20px; text-align: center; margin: 20px 0; }");
+        html.append(".code { font-size: 32px; font-weight: bold; color: #8A2BE2; letter-spacing: 5px; margin: 10px 0; }");
+        html.append(".footer { background-color: #f8f9fa; padding: 20px; text-align: center; color: #666; font-size: 14px; }");
+        html.append(".warning { background-color: #fff3cd; border: 1px solid #ffeaa7; border-radius: 5px; padding: 15px; margin: 20px 0; color: #856404; }");
+        html.append("</style>");
+        html.append("</head>");
+        html.append("<body>");
+        html.append("<div class=\"container\">");
+        html.append("<div class=\"header\">");
+        html.append("<h1>数学考试系统</h1>");
+        html.append("<p>邮箱验证码</p>");
+        html.append("</div>");
+        html.append("<div class=\"content\">");
+        html.append("<h2>您好！</h2>");
+        html.append("<p>您正在注册数学考试系统，请使用以下验证码完成注册：</p>");
+        html.append("<div class=\"verification-code\">");
+        html.append("<p><strong>验证码：</strong></p>");
+        html.append("<div class=\"code\">").append(verificationCode).append("</div>");
+        html.append("</div>");
+        html.append("<div class=\"warning\">");
+        html.append("<p><strong>重要提示：</strong></p>");
+        html.append("<ul>");
+        html.append("<li>验证码有效期为 <strong>5分钟</strong></li>");
+        html.append("<li>请勿将验证码泄露给他人</li>");
+        html.append("<li>如非本人操作，请忽略此邮件</li>");
+        html.append("</ul>");
+        html.append("</div>");
+        html.append("<p>如果您没有注册数学考试系统，请忽略此邮件。</p>");
+        html.append("<p>祝您使用愉快！</p>");
+        html.append("<p><strong>数学考试系统团队</strong></p>");
+        html.append("</div>");
+        html.append("<div class=\"footer\">");
+        html.append("<p>此邮件由系统自动发送，请勿回复</p>");
+        html.append("<p>2024 数学考试系统. All rights reserved.</p>");
+        html.append("</div>");
+        html.append("</div>");
+        html.append("</body>");
+        html.append("</html>");
+        
+        return html.toString();
+    }
+    
+    
+    /**
+     * 检查邮件服务是否可用
+     */
+    public boolean isAvailable() {
+        return isConfigured && session != null;
+    }
+}
diff --git a/src/main/java/com/example/mathsystemtogether/RegisterController.java b/src/main/java/com/example/mathsystemtogether/RegisterController.java
new file mode 100644
index 0000000..9939189
--- /dev/null
+++ b/src/main/java/com/example/mathsystemtogether/RegisterController.java
@@ -0,0 +1,310 @@
+package com.example.mathsystemtogether;
+
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.scene.control.*;
+import javafx.stage.Stage;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import java.util.*;
+import java.util.regex.Pattern;
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardOpenOption;
+
+/**
+ * 注册控制器
+ */
+public class RegisterController {
+
+    @FXML private TextField usernameField;
+    @FXML private PasswordField passwordField;
+    @FXML private PasswordField confirmPasswordField;
+    @FXML private TextField emailField;
+    @FXML private TextField verificationCodeField;
+    @FXML private Button sendCodeButton;
+    @FXML private Button registerButton;
+    @FXML private Button backToLoginButton;
+    @FXML private ComboBox<String> levelComboBox;
+    @FXML private Label statusLabel;
+
+    // 验证码相关
+    private String generatedCode;
+    private long codeGenerationTime;
+    private static final int CODE_VALIDITY_MINUTES = 5;
+    private static final String EMAIL_REGEX = "^[A-Za-z0-9+_.-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}$";
+    private static final Pattern EMAIL_PATTERN = Pattern.compile(EMAIL_REGEX);
+    
+    // 用户数据文件路径
+    private static final String USER_DATA_FILE = "user_data.txt";
+    
+    // 邮件服务
+    private EmailService emailService;
+
+    @FXML
+    public void initialize() {
+        setupLevelComboBox();
+        // 初始化时禁用注册按钮
+        registerButton.setDisable(true);
+        // 初始化邮件服务
+        emailService = new EmailService();
+        
+        // 检查邮件服务配置
+        if (!emailService.isAvailable()) {
+            showStatus("⚠️ 邮件服务未配置，请检查mail.properties文件", true);
+        }
+    }
+
+    private void setupLevelComboBox() {
+        ObservableList<String> levels = FXCollections.observableArrayList("小学", "初中", "高中");
+        levelComboBox.setItems(levels);
+        levelComboBox.setValue("小学");
+    }
+
+    @FXML
+    private void handleSendCode() {
+        String email = emailField.getText().trim();
+        
+        if (email.isEmpty()) {
+            showStatus("请输入邮箱地址", true);
+            return;
+        }
+        
+        if (!isValidEmail(email)) {
+            showStatus("请输入有效的邮箱地址", true);
+            return;
+        }
+        
+        // 检查邮件服务是否可用
+        if (!emailService.isAvailable()) {
+            showStatus("❌ 邮件服务不可用，请检查配置", true);
+            return;
+        }
+        
+        // 生成6位数字验证码
+        generatedCode = emailService.generateVerificationCode();
+        codeGenerationTime = System.currentTimeMillis();
+        
+        // 发送真实邮件
+        showStatus("📤 正在发送验证码到邮箱：" + email + "，请稍候...", false);
+        
+        // 在后台线程中发送邮件
+        new Thread(() -> {
+            boolean success = emailService.sendVerificationCode(email, generatedCode);
+            
+            javafx.application.Platform.runLater(() -> {
+                if (success) {
+                    showStatus("✅ 验证码已发送到邮箱：" + email + "，请查收邮件", false);
+                    // 启用注册按钮
+                    registerButton.setDisable(false);
+                } else {
+                    showStatus("❌ 邮件发送失败，请检查邮箱地址或稍后重试", true);
+                    // 显示验证码用于调试（仅开发环境）
+                    showStatus("❌ 邮件发送失败，请检查邮箱地址或稍后重试。验证码：" + generatedCode + "（调试用）", true);
+                }
+            });
+        }).start();
+        
+        // 禁用发送按钮60秒
+        sendCodeButton.setDisable(true);
+        sendCodeButton.setText("60秒后可重发");
+        
+        // 启动倒计时
+        startCountdown();
+    }
+
+    @FXML
+    private void handleRegister() {
+        String username = usernameField.getText().trim();
+        String password = passwordField.getText();
+        String confirmPassword = confirmPasswordField.getText();
+        String email = emailField.getText().trim();
+        String verificationCode = verificationCodeField.getText().trim();
+        String level = levelComboBox.getValue();
+
+        // 验证输入
+        if (username.isEmpty() || password.isEmpty() || confirmPassword.isEmpty() || 
+            email.isEmpty() || verificationCode.isEmpty()) {
+            showStatus("请填写所有字段", true);
+            return;
+        }
+
+        if (username.length() < 3) {
+            showStatus("用户名至少需要3个字符", true);
+            return;
+        }
+
+        if (password.length() < 6) {
+            showStatus("密码至少需要6个字符", true);
+            return;
+        }
+
+        if (!password.equals(confirmPassword)) {
+            showStatus("两次输入的密码不一致", true);
+            return;
+        }
+
+        if (!isValidEmail(email)) {
+            showStatus("请输入有效的邮箱地址", true);
+            return;
+        }
+
+        // 验证验证码
+        if (!verifyCode(verificationCode)) {
+            showStatus("验证码错误或已过期", true);
+            return;
+        }
+
+        // 检查用户名是否已存在
+        if (isUserExists(username)) {
+            showStatus("用户名已存在，请选择其他用户名", true);
+            return;
+        }
+
+        // 检查邮箱是否已注册
+        if (isEmailExists(email)) {
+            showStatus("该邮箱已被注册", true);
+            return;
+        }
+
+        // 保存用户信息
+        if (saveUserData(username, password, email, level)) {
+            showStatus("注册成功！正在跳转到登录界面...", false);
+            
+            // 延迟跳转到登录界面
+            Timer timer = new Timer();
+            timer.schedule(new TimerTask() {
+                @Override
+                public void run() {
+                    javafx.application.Platform.runLater(() -> {
+                        handleBackToLogin();
+                    });
+                }
+            }, 2000);
+        } else {
+            showStatus("注册失败，请重试", true);
+        }
+    }
+
+    @FXML
+    private void handleBackToLogin() {
+        try {
+            // 关闭当前窗口
+            Stage currentStage = (Stage) backToLoginButton.getScene().getWindow();
+            currentStage.close();
+            
+            // 打开登录界面
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("exam-view.fxml"));
+            Scene scene = new Scene(loader.load(), 900, 900);
+            Stage loginStage = new Stage();
+            loginStage.setTitle("数学考试系统 - 登录");
+            loginStage.setScene(scene);
+            loginStage.setResizable(true);
+            loginStage.show();
+            
+        } catch (Exception e) {
+            showStatus("跳转失败：" + e.getMessage(), true);
+        }
+    }
+
+
+    private boolean verifyCode(String inputCode) {
+        if (generatedCode == null) {
+            return false;
+        }
+        
+        // 检查验证码是否过期
+        long currentTime = System.currentTimeMillis();
+        long elapsedMinutes = (currentTime - codeGenerationTime) / (1000 * 60);
+        
+        if (elapsedMinutes > CODE_VALIDITY_MINUTES) {
+            return false;
+        }
+        
+        return generatedCode.equals(inputCode);
+    }
+
+    private boolean isValidEmail(String email) {
+        return EMAIL_PATTERN.matcher(email).matches();
+    }
+
+    private boolean isUserExists(String username) {
+        try {
+            if (!Files.exists(Paths.get(USER_DATA_FILE))) {
+                return false;
+            }
+            
+            List<String> lines = Files.readAllLines(Paths.get(USER_DATA_FILE));
+            for (String line : lines) {
+                if (line.startsWith(username + "|")) {
+                    return true;
+                }
+            }
+        } catch (IOException e) {
+            System.err.println("检查用户存在性时出错：" + e.getMessage());
+        }
+        return false;
+    }
+
+    private boolean isEmailExists(String email) {
+        try {
+            if (!Files.exists(Paths.get(USER_DATA_FILE))) {
+                return false;
+            }
+            
+            List<String> lines = Files.readAllLines(Paths.get(USER_DATA_FILE));
+            for (String line : lines) {
+                String[] parts = line.split("\\|");
+                if (parts.length >= 3 && parts[2].equals(email)) {
+                    return true;
+                }
+            }
+        } catch (IOException e) {
+            System.err.println("检查邮箱存在性时出错：" + e.getMessage());
+        }
+        return false;
+    }
+
+    private boolean saveUserData(String username, String password, String email, String level) {
+        try {
+            String userData = username + "|" + password + "|" + email + "|" + level + "|" + System.currentTimeMillis() + "\n";
+            Files.write(Paths.get(USER_DATA_FILE), userData.getBytes(), StandardOpenOption.CREATE, StandardOpenOption.APPEND);
+            return true;
+        } catch (IOException e) {
+            System.err.println("保存用户数据时出错：" + e.getMessage());
+            return false;
+        }
+    }
+
+    private void showStatus(String message, boolean isError) {
+        statusLabel.setText(message);
+        if (isError) {
+            statusLabel.setStyle("-fx-text-fill: #DC143C; -fx-font-weight: bold; -fx-font-size: 14;");
+        } else {
+            statusLabel.setStyle("-fx-text-fill: #228B22; -fx-font-weight: bold; -fx-font-size: 14;");
+        }
+    }
+
+    private void startCountdown() {
+        Timer timer = new Timer();
+        timer.schedule(new TimerTask() {
+            int countdown = 60;
+            
+            @Override
+            public void run() {
+                javafx.application.Platform.runLater(() -> {
+                    if (countdown > 0) {
+                        sendCodeButton.setText(countdown + "秒后可重发");
+                        countdown--;
+                    } else {
+                        sendCodeButton.setDisable(false);
+                        sendCodeButton.setText("📤 发送验证码");
+                        timer.cancel();
+                    }
+                });
+            }
+        }, 0, 1000);
+    }
+}
diff --git a/src/main/resources/com/example/mathsystemtogether/register-view.fxml b/src/main/resources/com/example/mathsystemtogether/register-view.fxml
new file mode 100644
index 0000000..da5f9f4
--- /dev/null
+++ b/src/main/resources/com/example/mathsystemtogether/register-view.fxml
@@ -0,0 +1,131 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.text.Font?>
+<?import javafx.scene.effect.DropShadow?>
+<?import javafx.scene.paint.LinearGradient?>
+<?import javafx.scene.paint.Stop?>
+
+<BorderPane xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.mathsystemtogether.RegisterController" style="-fx-background-color: linear-gradient(to bottom, #6A0DAD, #4B0082, #2E0854);">
+   <top>
+      <VBox spacing="15.0" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC, #8B008B); -fx-background-radius: 15; -fx-padding: 20;">
+         <padding>
+            <Insets bottom="15.0" left="20.0" right="20.0" top="20.0"/>
+         </padding>
+         <Label text="🎓 用户注册" textFill="white" textAlignment="CENTER" style="-fx-effect: dropshadow(gaussian, rgba(0,0,0,0.5), 10, 0, 0, 2);">
+            <font>
+               <Font name="System Bold" size="28.0"/>
+            </font>
+         </Label>
+         <Label text="✨ 创建新账户 · 邮箱验证 · 安全可靠" textFill="#E6E6FA" textAlignment="CENTER">
+            <font>
+               <Font name="System" size="14.0"/>
+            </font>
+         </Label>
+      </VBox>
+   </top>
+   <center>
+      <VBox spacing="10.0">
+         <padding>
+            <Insets bottom="10.0" left="15.0" right="15.0" top="10.0"/>
+         </padding>
+
+         <!-- 注册区域 -->
+         <VBox spacing="15.0" style="-fx-background-color: linear-gradient(to bottom, #E6E6FA, #D8BFD8, #DDA0DD); -fx-padding: 20; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.3), 15, 0, 0, 5);">
+            <Label text="📝 填写注册信息" textFill="#4B0082" textAlignment="CENTER">
+               <font>
+                  <Font name="System Bold" size="18.0"/>
+               </font>
+            </Label>
+            
+            <!-- 用户名输入 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="👤 用户名:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <TextField fx:id="usernameField" promptText="请输入用户名" prefWidth="200.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
+            </HBox>
+            
+            <!-- 密码输入 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="🔑 密码:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <PasswordField fx:id="passwordField" promptText="请输入密码" prefWidth="200.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
+            </HBox>
+            
+            <!-- 确认密码输入 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="🔒 确认密码:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <PasswordField fx:id="confirmPasswordField" promptText="请再次输入密码" prefWidth="200.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
+            </HBox>
+            
+            <!-- 邮箱输入 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="📧 邮箱:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <TextField fx:id="emailField" promptText="请输入邮箱地址" prefWidth="200.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
+            </HBox>
+            
+            <!-- 验证码输入 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="🔢 验证码:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <TextField fx:id="verificationCodeField" promptText="请输入验证码" prefWidth="120.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
+               <Button fx:id="sendCodeButton" text="📤 发送验证码" onAction="#handleSendCode" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 8; -fx-padding: 8 15; -fx-font-size: 12; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 3, 0, 0, 1);"/>
+            </HBox>
+            
+            <!-- 难度级别选择 -->
+            <HBox spacing="15.0" alignment="CENTER_LEFT">
+               <Label text="📚 难度级别:" minWidth="100.0" textFill="#6A0DAD">
+                  <font>
+                     <Font name="System Bold" size="14.0"/>
+                  </font>
+               </Label>
+               <ComboBox fx:id="levelComboBox" prefWidth="140.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2;"/>
+            </HBox>
+            
+            <!-- 按钮区域 -->
+            <HBox spacing="15.0" alignment="CENTER">
+               <Button fx:id="registerButton" text="🚀 注册" onAction="#handleRegister" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
+               <Button fx:id="backToLoginButton" text="🔙 返回登录" onAction="#handleBackToLogin" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
+            </HBox>
+            
+            <!-- 状态标签 -->
+            <Label fx:id="statusLabel" textFill="#8B0000" style="-fx-font-weight: bold; -fx-font-size: 14;" textAlignment="CENTER"/>
+         </VBox>
+
+         <!-- 注册说明 -->
+         <VBox spacing="15.0" style="-fx-background-color: linear-gradient(to bottom, #F8F0FF, #E6E6FA, #D8BFD8); -fx-padding: 20; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.2), 10, 0, 0, 3);">
+            <Label text="📖 注册说明" textFill="#4B0082" textAlignment="CENTER">
+               <font>
+                  <Font name="System Bold" size="16.0"/>
+               </font>
+            </Label>
+            <VBox spacing="8.0" style="-fx-padding: 10; -fx-background-color: rgba(255,255,255,0.8); -fx-background-radius: 10; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.1), 5, 0, 0, 2);">
+               <Label text="① 填写用户名、密码和邮箱信息" textFill="#6A0DAD" style="-fx-font-weight: bold;"/>
+               <Label text="② 点击'发送验证码'获取邮箱验证码" textFill="#6A0DAD" style="-fx-font-weight: bold;"/>
+               <Label text="③ 输入收到的验证码完成验证" textFill="#6A0DAD" style="-fx-font-weight: bold;"/>
+               <Label text="④ 选择适合的难度级别" textFill="#6A0DAD" style="-fx-font-weight: bold;"/>
+               <Label text="⑤ 点击'注册'完成账户创建" textFill="#6A0DAD" style="-fx-font-weight: bold;"/>
+            </VBox>
+         </VBox>
+      </VBox>
+   </center>
+</BorderPane>
diff --git a/src/main/resources/mail.properties b/src/main/resources/mail.properties
new file mode 100644
index 0000000..fbeb580
--- /dev/null
+++ b/src/main/resources/mail.properties
@@ -0,0 +1,43 @@
+# 邮件服务配置
+# QQ邮箱配置
+
+# QQ邮箱SMTP配置
+mail.smtp.host=smtp.qq.com
+mail.smtp.port=587
+mail.smtp.auth=true
+mail.smtp.starttls.enable=true
+mail.smtp.ssl.trust=smtp.qq.com
+
+# 发送方邮箱配置
+mail.from.email=1961004835@qq.com
+mail.from.password=nixyzbpbcrekhgfe
+
+# 其他邮箱服务商配置示例：
+
+# Gmail配置
+# mail.smtp.host=smtp.gmail.com
+# mail.smtp.port=587
+# mail.smtp.auth=true
+# mail.smtp.starttls.enable=true
+# mail.smtp.ssl.trust=smtp.gmail.com
+
+# 163邮箱配置
+# mail.smtp.host=smtp.163.com
+# mail.smtp.port=587
+# mail.smtp.auth=true
+# mail.smtp.starttls.enable=true
+# mail.smtp.ssl.trust=smtp.163.com
+
+# 126邮箱配置
+# mail.smtp.host=smtp.126.com
+# mail.smtp.port=587
+# mail.smtp.auth=true
+# mail.smtp.starttls.enable=true
+# mail.smtp.ssl.trust=smtp.126.com
+
+# 企业邮箱配置示例
+# mail.smtp.host=smtp.exmail.qq.com
+# mail.smtp.port=587
+# mail.smtp.auth=true
+# mail.smtp.starttls.enable=true
+# mail.smtp.ssl.trust=smtp.exmail.qq.com
diff --git a/user_data.txt b/user_data.txt
new file mode 100644
index 0000000..af77928
--- /dev/null
+++ b/user_data.txt
@@ -0,0 +1 @@
+wgll|123456|ymhlovesLQX@163.com|小学|1760162416490