Spring + Vaadin注解@在UI中自动连接

@Route("login")
public class LoginView extends VerticalLayout {
    @Autowired
    private TextField usernameField;
    
    @Autowired
    private PasswordField passwordField;
    
    @Autowired
    private Button loginButton;
    
    // ...
}

@Route("login")
public class LoginView extends VerticalLayout {
    @Autowired
    private TextField usernameField;
    
    @Autowired
    private PasswordField passwordField;
    
    @Autowired
    private Button loginButton;
    
    public LoginView() {
        // 设置布局和样式
        
        // 添加UI组件到布局中
        add(usernameField, passwordField, loginButton);
        
        // 设置按钮点击事件处理逻辑
        loginButton.addClickListener(e -> {
            String username = usernameField.getValue();
            String password = passwordField.getValue();
            
            // 处理登录逻辑
            // ...
        });
    }
}