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图解源码 | SpringBoot中拓展SpringMVC原理

@Configuration
public class FeichaoMvcConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new HandlerInterceptor() {

            public boolean preHandle(HttpServletRequest request,
                                     HttpServletResponse response,
                                     Object handler) throws Exception {
                System.out.println("公众号：肥朝（id:feichao_java）,preHandle");
                return true;
            }

            public void postHandle(HttpServletRequest request,
                                   HttpServletResponse response,
                                   Object handler,
                                   ModelAndView modelAndView) throws Exception {
                System.out.println("公众号：肥朝（id:feichao_java）,postHandle");
            }

            public void afterCompletion(HttpServletRequest request,
                                        HttpServletResponse response,
                                        Object handler,
                                        Exception ex) throws Exception {
                System.out.println("公众号：肥朝（id:feichao_java）,afterCompletion");
            }
        });
    }

}