hi, i have a currently running, does-almost-everything, webapp based around struts/spring/hibernate. i need to do a couple of CRUDs for some backing database tables that only a few users (admins) would see, and i thought this could be done quickly with grails. but ....
i don't see any tutorials on how to 'add' grails to an already existing project - they all start from scratch.
In theory, yes, it's doable. Grails plays well with Spring & Hibernate.
I don't have a lot of experience with Grails, and I certainly haven't augmented an existing, so I don't know how _quick_ it would be. In the vein of Rails, Grails prefers convention over configuration, but definitely _allows_ configuration for legacy/non-standard situations.
I don't know of any tutorials in this aspect. If you have specific questions, you might try the main site and look for mailing lists and/or blogs.