Spring

spring.io

Dependency Injection
transaction management
DI
DB
로그 처리 ...

MVC
트랜잭션 : DAO, DTO
인증과 권한

참고 : https://www.youtube.com/watch?v=XtXHIDnzS9c&list=PLq8wAnVUcTFUHYMzoV2RoFoY2HDTKru3T