Springmvc @RequestBody

@RequestMapping ("/homepage")    @RequestBody    public  Modelandview homepage ( Modelandview modelandview) {        modelandview.addobject ("SiteName", "Qunar");        Modelandview.setviewname ("/template/homepage");         return modelandview;    }

@RequestBody indicates that the return result of the method is written directly to the HTTP response body
Generally used when retrieving data asynchronously, after using @requestmapping, the return value is usually resolved to the jump path, plus @responsebody returns the result will not be resolved to the jump path, but directly to the HTTP response body. For example, asynchronously fetching JSON data, plus @responsebody, will return the JSON data directly.

Springmvc @RequestBody