java - 是否可以扩展 WebMvcConfigurationSupport 并使用 WebMvcAutoConfiguration？

Question

我还需要扩展 WebMvcConfigurationSupport 类修改两件事:

@Configuration
public class WebConfig extends WebMvcConfigurationSupport {
    @Override
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping handlerMapping = super.requestMappingHandlerMapping();
        handlerMapping.setRemoveSemicolonContent(false);
        handlerMapping.setOrder(1);
        return handlerMapping;
    }
}

我喜欢从 WebMvcAutoConfiguration 类注册的默认值，但由于类上的条件注释，当我扩展 WebMvcConfigurationSupport 类时，它会阻止自动配置发生。

@Configuration
@ConditionalOnWebApplication
@ConditionalOnClass({ Servlet.class, DispatcherServlet.class,
    WebMvcConfigurerAdapter.class })
@ConditionalOnMissingBean(WebMvcConfigurationSupport.class)
@Order(Ordered.HIGHEST_PRECEDENCE + 10)
@AutoConfigureAfter(DispatcherServletAutoConfiguration.class)
public class WebMvcAutoConfiguration {...}

是否可以加载 WebMvcAutoConfiguration 类而无需复制/粘贴该类中的大部分代码？

或者是否可以从其他地方调用 RequestMappingHandlerMapping setOrder() 和 setRemoveSemicolonContent() 以便我可以使用 @EnableWebMvc 注释并让自动配置类运行而没有任何问题？

提前致谢!

Answer 1

从 DelegatingWebMvcConfiguration 而不是 WebMvcConfigurationSupport 扩展，它不会阻止自动配置发生:

@Configuration
public class WebConfig extends DelegatingWebMvcConfiguration {
    @Override
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping handlerMapping = super.requestMappingHandlerMapping();
        handlerMapping.setRemoveSemicolonContent(false);
        handlerMapping.setOrder(1);
        return handlerMapping;
    }
}