Is Grails a good framework to start making web-app? What knowledge to get started?

Question

Something about the framework grails

Answer 1

Do you mean rails? If so, yes it's easy to learn

Answer 2

no, i mean grails:
groovy on rails, i try to make a web app, and with few row in a shell I have obtain a CRUD for some Domain classes...
I have used:
grails create-app nameApp
grails create-domain-class nameClass
grails generate-controller nameClass
and that sound great, but i don't know where modify the project.
I have a base of java and i read something about groovy (it's very similar to java) but i think need more knowledge before starting with grails framework