新增用户注册功能

src/main/java/com/example/mathsystemtogether/ExamController.java

@@ -8,14 +8,23 @@ import javafx.scene.layout.VBox;
 import javafx.stage.Stage;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
-
+import java.time.Instant;
 import java.util.*;
 
 /**
  * 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;
+
+    private final Map<String, RegisterInfo> pendingRegistratrations = new HashMap<>();
     // 登录界面控件
     @FXML private TextField usernameField;
     @FXML private PasswordField passwordField;
@@ -46,6 +55,9 @@ public class ExamController {
     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<>();
+
+
 
     // 常量定义
     private static final int MIN_QUESTIONS = 5;
@@ -60,8 +72,123 @@ public class ExamController {
         if (emailStatusLabel != null) {
             emailStatusLabel.setText("");
         }
+        if (registerPanel != null) {
+            registerPanel.setVisible(false);
+        }
+    }
+    // 添加内部类用于存储注册信息
+    static class RegisterInfo {
+        final String username;
+        final 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);
+        }
     }
 
+    // 添加注册相关方法
+    @FXML
+    private void handleRegister() {
+        String username = registerUsernameField.getText().trim();
+        String password = registerPasswordField.getText();
+        String email = registerEmailField.getText().trim();
+
+        if (username.isEmpty() || password.isEmpty() || email.isEmpty()) {
+            registerStatusLabel.setText("请填写所有字段");
+            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 {
+            // 使用现有的邮箱验证码服务发送注册验证码
+            emailCodeService.sendCode(email);
+
+            // 生成注册码并存储待验证信息
+            String registerCode = String.valueOf(100000 + new Random().nextInt(900000));
+            pendingRegistrations.put(email, new RegisterInfo(username, password, email, registerCode));
+
+            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;");
+        }
+    }
+
+@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) {
+        // 验证通过，完成注册
+        RegisterInfo registerInfo = pendingRegistrations.get(email);
+        if (registerInfo != null) {
+            Level defaultLevel = Level.小学;
+            userMap.put(registerInfo.username, new Account(registerInfo.username, registerInfo.password, defaultLevel));
+            pendingRegistrations.remove(email); // 移除已注册的信息
+
+            registerStatusLabel.setText("注册成功！可以使用新账号登录");
+            registerStatusLabel.setStyle("-fx-text-fill: green;");
+
+            // 清空注册面板
+            registerUsernameField.clear();
+            registerPasswordField.clear();
+            registerEmailField.clear();
+            registerCodeField.clear();
+            registerPanel.setVisible(false);
+        } else {
+            registerStatusLabel.setText("注册信息已过期，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() {
+        if (registerPanel != null) {
+            registerPanel.setVisible(false);
+        }
+    }
     private void initAccounts() {
         // 小学三个账号
         userMap.put("张三1", new Account("张三1", "123", Level.小学));