專案中想新增自定義的攔截器，一開始通過配置繼承WebMvcConfigurerAdapter如：

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {



    @Autowired
    private AuthorizationInterceptor authorizationInterceptor;

    @Autowired
    private CurrentUserMethodArgumentResolver currentUserMethodArgumentResolver;

    @Override
 

    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        currentUserMethodArgumentResolver.setUserModelClass(Member.class);
        argumentResolvers.add(currentUserMethodArgumentResolver);
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(authorizationInterceptor);
    }

}
 

但是根據官方標註WebMvcConfigurerAdapter過時了，因為java8介面具有預設實現，然後想通過繼承WebMvcConfigurationSupport實現新增。

@Configuration
public class WebConfig extends WebMvcConfigurationSupport {



    @Autowired
    private AuthorizationInterceptor authorizationInterceptor;

    @Autowired
    private CurrentUserMethodArgumentResolver currentUserMethodArgumentResolver;

    @Override
 

    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        currentUserMethodArgumentResolver.setUserModelClass(Member.class);
        argumentResolvers.add(currentUserMethodArgumentResolver);
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(authorizationInterceptor);
    }

}

但是當啟動專案後，發現無法訪問靜態資源，已經controller都無法訪問，因為在springboot中預設是載入了mvc的配置，可以檢視註釋@WebMvcAutoConfiguration,這個註釋有一個條件註釋@ConditionalOnMissingBean(WebMvcConfigurationSupport.class)。也就是說只要在容器中發現有WebMvcConfigurationSupport這個類，那就會失效，我們就必須在我們的主類上新增@@EnableWebMvc註解，這樣我就無法訪問預設的靜態資源了。因為WebMvcConfigurerAdapter過時，是因為java8中介面有預設實現，而WebMvcConfigurerAdapter實現的就是WebMvcConfigurer方法，所以我只要實現WebMvcConfigurer介面，然後重寫我們需要的方法即可。最終程式碼：

@Configuration
public class WebConfig implements WebMvcConfigurer {



    @Autowired
    private AuthorizationInterceptor authorizationInterceptor;

    @Autowired
    private CurrentUserMethodArgumentResolver currentUserMethodArgumentResolver;

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        currentUserMethodArgumentResolver.setUserModelClass(Member.class);
        argumentResolvers.add(currentUserMethodArgumentResolver);
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(authorizationInterceptor);
    }

}

即可以解決這個坑