| [备忘]<mvc:annotation-driven>和DefaultAnnotationHandlerMapping不兼容 | ||
| 添加日期：2019/12/17 20:28:37 | 快速返回 返回列表 | 阅读1250次 |
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"> <property name="order" value="0" /> <property name="interceptors"> <list> <bean class="com.xxxx.ControllerInterceptor" /> </list> </property> </bean> 用了<mvc:annotation-driven/>，拦截器就不好使。 不用<mvc:annotation-driven/>吧，RedirectAttributes还不让用。 晕，咋整哦~~非得自己拼URL啊~~ 不想升级mvc版本~ ----------------------------------------------- You don't have to provide mvc:annotation-driven tag to instantiate default beans. This tag can be used Spring 3.0+ to enable new feature introduced from Spring 3.0 <mvc:annotation-driven/>不是必须的，它是提供新特性的。 (Do not use it if you want backward compatibility, especially if you are using old controller based classes like MultiActionController, SimpleFormController) 如果向后兼容的话，就别用它~~~~~ Now lets come to what this tag actually does - Prior to Spring 3.1 default beans used where 3.1之前是用这几个默认Bean的 DefaultAnnotationHandlerMapping AnnotationMethodHandlerAdapter AnnotationMethodHandlerExceptionResolver These are deprecated in Spring 3.1 and if you use above mentioned tag it will be replaced by - 3.1变成了这几个~~ RequestMappingHandlerMapping RequestMappingHandlerAdapter ExceptionHandlerExceptionResolver DefaultAnnotationHandlerMapping decided which controller to use and the AnnotationMethodHandlerAdapter selected the actual method that handled the request. RequestMappingHandlerMapping does both the tasks. Therefore the request is directly mapped right to the method. 还有别的一些bean，像拦截器，绑定啥的~自己搜吧 There are other infrastructure beans that are instantiated by these tag (chained in addition to defaults) like - MappedInterceptor, ConfigurableWebBindingInitializer, SessionFlashManager, ContentNegociationManager etc. I am not going to explain these :) as they each are long answers themselves, so google it for more info. 3.1还有@PathVariables啦~ PS : And yes Spring 3.1+ automatically expose @PathVariables to the model. Also you have mvc:interceptors tag. But I think it is not related to <mvc:annotation-driven />. I would highly recommend read - http://spring.io/blog/2009/12/21/mvc-simplifications-in-spring-3-0/ |
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