Spring MVC Controllers Return Type

Question

I\'ve seen examples where a controller returns a String (which indicates the view)

@RequestMapping(value=\"/owners/{ownerId}\", method=RequestMethod.GET)
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Answer 1

Returning ModelAndView or a string does the same job. It resolves into a view (a jsp page) and giving a model object to be rendered in the view. If you return a string, spring internally resolves to a view using viewResolver, create a ModelAndView Object and return it. The returning of ModelAndView object is from the older version. You can do either of this based on your convenient.

Have a look at this question

Also bunch of answers are pointing out to @RequestBody. Its not exactly related to your question. But keep in mind that it will convert your object based on content-type using available converters and the resuly will be part of the document body.