springboot的interceptor(拦截器)的应用

@Componentpublic class LoginInterceptor implements HandlerInterceptor {    @Override    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,   o) throws Exception {        return false;    }    @Override    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,   o, ModelAndView modelAndView) throws Exception {    }    @Override    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,   o, Exception e) throws Exception {    }}

@Configurationpublic class LoginConfigurtion extends WebMvcConfigurerAdapter{    @Override    public void addInterceptors(InterceptorRegistry registry) {        registry.addInterceptor(new LoginInterceptor())                .addPathPatterns("/*")                .excludePathPatterns("/user/login");    }}