Spring MVC Request mapping, can this be dynamic/configurable?

Question

With Spring MVC, I know how you set the RequestMapping in every controller and method/action.

But what if I wanted this to be configurable, so for example I

Answer 1

Would this sort of URL mapping work for you?

www.example.com/blog/1/
www.example.com/blog/2/

If yes, then that's easy: Spring 3 supports path variables: http://static.springsource.org/spring/docs/3.0.x/reference/mvc.html#mvc-ann-requestmapping-advanced

Alternatively, you can create a generic request mapping and your own sub-dispatcher that reads a config file, but I think that's probably more work than it's worth.