annotation기반 redirect와 session 설정법

//만약 리다이렉트 하고싶다면 InternalPrefixResolver가 작동하지 않는다

return "redirect: /hello.jsp";

 

@SessionAttributes({"message"}) //키가 메시지로 저장되는 애들은 세션에 저장해라!

public class HelloController {}