如何在匿名页面上的Spring Security中获取经过身份验证的用户的详细信息

// 配置Spring Security
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    
    @Autowired
    private UserDetailsService userDetailsService;
    
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService);
    }
    
    // 其他配置...
}

// 自定义用户详细信息服务
@Service
public class CustomUserDetailsService implements UserDetailsService {
    
    @Autowired
    private UserRepository userRepository;
    
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException("User not found");
        }
        return new CustomUserDetails(user);
    }
}

// 自定义用户详细信息对象
public class CustomUserDetails implements UserDetails {
    
    private User user;
    
    public CustomUserDetails(User user) {
        this.user = user;
    }
    
    // 实现UserDetails接口的方法...
    
    // 其他getter和setter方法...
}

// 在匿名页面的控制器或服务中获取经过身份验证的用户详细信息
@Controller
public class AnonymousController {
    
    @GetMapping("/anonymous")
    public String anonymousPage() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        CustomUserDetails userDetails = (CustomUserDetails) authentication.getPrincipal();
        
        // 获取用户详细信息
        String username = userDetails.getUsername();
        // 其他操作...
        
        return "anonymousPage";
    }
}