springmvc는 차단기의 대상을 컨트롤러나 서비스에 우아하게 전달합니다

public class LoginInterceptor extends HandlerInterceptorAdapter {

    private JwtProperties jwtProperties;
    private JwtProperties jwtProperties;

    //  ， 
    private static final ThreadLocal tl = new ThreadLocal<>();

    public LoginInterceptor(JwtProperties jwtProperties) {
        this.jwtProperties = jwtProperties;
    }

    @Override
    public boolean preHandle( HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //  token
        String token = CookieUtils.getCookieValue(request, jwtProperties.getCookieName());
        if (StringUtils.isBlank(token)) {
            //  , 401
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }
        //  token， 
        try {
            //  ， 
            UserInfo user = JwtUtils.getUserInfo(jwtProperties.getPublicKey(),token);
            //  
            tl.set(user);
            //request.setAttribute("user", user);
            return true;
        } catch (Exception e){
            //  ， , 401
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        // ， 
        tl.remove();
    }

    public static UserInfo getLoginUser() {
        return tl.get();
    }
}

@Configuration
@EnableConfigurationProperties(JwtProperties.class)
public class MvcConfig implements WebMvcConfigurer {

    @Autowired
    private JwtProperties jwtProperties;

    @Bean
    public LoginInterceptor loginInterceptor() {
        return new LoginInterceptor(jwtProperties);
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(loginInterceptor()).addPathPatterns("/**");
    }
}