@Target(value=TYPE) @Retention(value=RUNTIME) @Documented @Controller @ResponseBody public @interface RestController
@Controller and @ResponseBody.
 
 Types that carry this annotation are treated as controllers where
 @RequestMapping methods assume
 @ResponseBody semantics by default.
 
NOTE: @RestController is processed if an appropriate
 HandlerMapping-HandlerAdapter pair is configured such as the
 RequestMappingHandlerMapping-RequestMappingHandlerAdapter
 pair which are the default in the MVC Java config and the MVC namespace.
@AliasFor(annotation=Controller.class) public abstract String value