[spring] 스프링 4.0 특징

참고블로그
https://stargatex.wordpress.com/2014/11/19/spring-framework-4-0-%EB%AC%B4%EC%97%87%EC%9D%B4-%EB%8B%AC%EB%9D%BC%EC%A1%8C%EB%82%98/comment-page-1/