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package mathlearning.ui;
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import mathlearning.model.User;
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import mathlearning.service.UserService;
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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public class LoginFrame extends JFrame{
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private UserService userService;
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private JTextField emailField;
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private JPasswordField passwordField;
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public LoginFrame(UserService userService) {
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this.userService = userService;
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initializeUI();
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}
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private void initializeUI() {
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setTitle("数学学习软件 - 登录");
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setSize(400, 300);
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setLocationRelativeTo(null);
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setResizable(false);
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// 主面板
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JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
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mainPanel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
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// 标题
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JLabel titleLabel = new JLabel("用户登录", JLabel.CENTER);
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titleLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
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mainPanel.add(titleLabel, BorderLayout.NORTH);
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// 表单面板
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JPanel formPanel = new JPanel(new GridLayout(3, 2, 10, 10));
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JLabel emailLabel = new JLabel("邮箱:");
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emailLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
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emailField = new JTextField();
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JLabel passwordLabel = new JLabel("密码:");
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passwordLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
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passwordField = new JPasswordField();
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formPanel.add(emailLabel);
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formPanel.add(emailField);
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formPanel.add(passwordLabel);
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formPanel.add(passwordField);
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mainPanel.add(formPanel, BorderLayout.CENTER);
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// 按钮面板
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JPanel buttonPanel = new JPanel(new FlowLayout());
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JButton loginButton = new JButton("登录");
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loginButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
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loginButton.addActionListener(new LoginButtonListener());
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JButton registerButton = new JButton("注册");
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registerButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
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registerButton.addActionListener(e -> openRegisterFrame());
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JButton changeCodeButton = new JButton("忘记密码？");
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changeCodeButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
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changeCodeButton.addActionListener(e -> openChangeCodeFrame());
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buttonPanel.add(loginButton);
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buttonPanel.add(registerButton);
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buttonPanel.add(changeCodeButton);
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mainPanel.add(buttonPanel, BorderLayout.SOUTH);
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add(mainPanel);
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}
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private class LoginButtonListener implements ActionListener {
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@Override
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public void actionPerformed(ActionEvent e) {
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String email = emailField.getText().trim();
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String password = new String(passwordField.getPassword());
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if (email.isEmpty() || password.isEmpty()) {
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JOptionPane.showMessageDialog(LoginFrame.this,
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"请输入邮箱和密码", "错误", JOptionPane.ERROR_MESSAGE);
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return;
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}
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if (userService.login(email, password)) {
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JOptionPane.showMessageDialog(LoginFrame.this,
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"登录成功!", "成功", JOptionPane.INFORMATION_MESSAGE);
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// 这里可以打开主界面
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openMainFrame(email);
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} else {
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JOptionPane.showMessageDialog(LoginFrame.this,
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"邮箱或密码错误", "登录失败", JOptionPane.ERROR_MESSAGE);
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}
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}
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}
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private void openRegisterFrame() {
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RegisterFrame registerFrame = new RegisterFrame(userService, this);
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registerFrame.setVisible(true);
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this.setVisible(false);
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}
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private void openChangeCodeFrame() {
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ChangeCodeFrame changeCodeFrame = new ChangeCodeFrame(userService, this);
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changeCodeFrame.setVisible(true);
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this.setVisible(false);
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}
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private void openMainFrame(String email) {
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User user = userService.getUser(email);
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// 这里先简单显示一个消息，后续可以扩展为主界面
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JOptionPane.showMessageDialog(this,
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"欢迎 " + user.getUsername() + "!\n登录成功，主界面功能待实现。",
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"登录成功", JOptionPane.INFORMATION_MESSAGE);
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}
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}
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