Which return type use in spring mvc in @RequestMapping method?

Question

I know in spring mvc in @Controller class in @RequestMapping method I can return

1. String
2. Model
3. ModelAndView

I don\'t understa

Answer 1

Everything is in the documentation: http://static.springsource.org/spring/docs/3.2.x/spring-framework-reference/html/mvc.html#mvc-ann-return-types