spring mvc - What does <mvc:annotation-driven /> do?

Question

I use filenames in my REST API (example: GET http://xxx/api/myImage.jpg) problem is @PathVariable dropped ".jpg". this problems already asked few times in here and answered. but not worked to me.

so I searched then found at the

https://jira.springsource.org/browse/SPR-6524

"... is simply not supposed to be combined with manual DefaultAnnotationHandlerMapping instances; this is designed as an either-or choice at present, quite similar to and ."

"mvc namespace are make simplifed configurations".

Real question is mvc what does do? and changed?

I found my self these things..

1. intercepter configuration changed. (mvc namspace required in bean configuation)
2. useDefaultSuffixPattern is not working.
3. adds JSON message converter. if jackson library is available
4. @PathVariable arguments are auto added to model

Any others?

Thanks in advance!

Answer 1

The mvc:annotationDriven tag essentially sets you your Spring context to allow for dispatching requests to Controllers.

The tag will configure two beans DefaultAnnotationHandlerMapping and AnnotationMethodHandlerAdapter.

You can find more information from the spring documents:

http://static.springsource.org/spring/docs/current/spring-framework-reference/html/mvc.html