问题
What is the typical use case code that shows the difference between those two annotations - meaning the @RestController and the @RepositoryRestController - ?
回答1:
According to the annotation the RepositoryRestController is a way to provide custom controllers that still take advantage of spring data rest functionality
http://docs.spring.io/spring-data/rest/docs/current/reference/html/#customizing-sdr.overriding-sdr-response-handlers
Sometimes you may want to write a custom handler for a specific resource. To take advantage of Spring Data REST’s settings, message converters, exception handling, and more, use the @RepositoryRestController annotation instead of a standard Spring MVC @Controller or @RestController.
Most importantly the RepositoryRestController is aware of the spring data rest base path and will be served under this base path.
来源：https://stackoverflow.com/questions/34512878/difference-between-restcontroller-and-repositoryrestcontroller