ehcache 참고 아직 정리안됌

http://dev.dwuthk.com/entry/Spring-Ehcache-%EC%A0%81%EC%9A%A9-%EC%A0%95%EB%A6%AC

http://ironheel.tistory.com/44

https://sonegy.wordpress.com/2011/12/29/spring-3-1%EA%B3%BC-ehcache/