SpringBoot启动类为什么要添加@EnableWebMvc？
See docs.spring.io/spring/docs/current/spring-framework-reference/…. Does it work, yes, is it sufficient it might. But the version you use still has the old DefaultAnnotationHandlerMapping instead of the newer more powerful/flexible RequestMappingHandlerMapping and other classes. – M. Deinum Sep 16 '16 at 13:42
问题来源:https://stackoverflow.com/questions/39532859/how-does-requestmapping-work-without-enablewebmvc
知道大概为啥了，但是并不知道这个RequestMappingHandlerMapping这个有什么高级的特性
具体这个注解是干嘛的？看这个（需要梯子），https://stackoverflow.com/questions/19291329/enablewebmvc-annotation-meaning，这里有官方文档的连接
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