Sign Up Spring HandlerInterceptor without WebMvcConfigurationSupport

Question

I am trying to register an instance of HandlerInterceptor in Spring using Java Config without the WebMvcConfigurationSupport extension. I am creating a library with annotation that, when added to the @Configuration class @Configuration registers an interceptor that processes the security annotation.

I had an implementation using WebMvcConfigurationSupport#addInterceptors , but this was contrary to other automatic work in spring, and redefined part of the application’s own logic. It also seems incredibly heavy for something that should be simple. I'm trying now:

 @Configuration public class AnnotationSecurityConfiguration { @Autowired private RequestMappingHandlerMapping requestMappingHandlerMapping; @PostConstruct public void attachInterceptors() { requestMappingHandlerMapping.setInterceptors(new Object[] { new SecurityAnnotationHandlerInterceptor() }); } } 

However, it seems that the interceptor is registering in a completely different instance of RequestMappingHandlerMapping than the one that the application actually uses for web requests. Also, when using BeanFactoryPostProcessor I get a NullPointerException in HealthMvcEndpoint when trying to beanFactory.getBean(RequestMappingHandlerMapping.class)

Answer 1

Edit : This class has been deprecated since. See below @bosco for the Spring 5 equivalent.

It turned out that the solution should be used simply:

 @Configuration public class AnnotationSecurityConfiguration extends WebMvcConfigurerAdapter { @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new SecurityAnnotationHandlerInterceptor()); } } 

In the spring of loading, all beans like WebMvcConfigurer automatically detected and can change the MVC context.

Answer 2

Just pointing out @Blauhirn's comment, WebMvcConfigurerAdapter deprecated since version 5.0 :

Deprecated version 5.0 WebMvcConfigurer has default methods (made possible by the Java 8 baseline) and can be implemented directly without using this adapter

Refer to the new way:

 @Configuration public class WebMvcConfig implements WebMvcConfigurer { @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new MyCustomInterceptor()) // Optional .addPathPatterns("/myendpoint"); } } 

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Also, as stated here , do not comment on this with @EnableWebMvc if you want to keep the Spring Boot automatic configuration for MVC .