- Beans in Spring are objects that are managed by the Spring IoC container. They form the backbone of a Spring application. - Beans and their dependencies are configured in metadata that is used by the container to manage the complete lifecycle of a bean - instantiating, assembling, and configuring beans. - There are two main ways to configure beans - using XML configuration or using annotations in Java code. Common annotations used include @Component, @Controller, @Service and @Repository.

1. Week2.
Section 2~3
11 1
Covenant Ko
2021. 06. 02(Wed)

2. - Name. Covenant.
- Company. 11번가
- Github 용감한친구들 Organization Founder & Maintainer. https://github.com/brave-people
- Github. https://github.com/KoEonYack
- Tech Blog. https://covenant.tistory.com/ (누적 방문 41만)

3. Week2
0.
* Note( ), Github
1.
* { , }
*4
2. , ,
* 05 13 ~ 06 12
3. ~

4. In Spring, the objects that form the backbone of your application and that are
managed by the Spring IoC container are called beans. A bean is an object that
is instantiated, assembled, and managed by a Spring IoC container. Otherwise,
a bean is simply one of many objects in your application. Beans, and the
dependencies among them, are reflected in the configuration metadata used by
a container.
spring.io
1.1. Introduction to the Spring IoC Container and Beans
What is BEAN?

5. In Spring, the objects that form the backbone of your application and that are
managed by the Spring IoC container are called beans. A bean is an object that
is instantiated, assembled, and managed by a Spring IoC container. Otherwise,
a bean is simply one of many objects in your application. Beans, and the
dependencies among them, are reflected in the configuration metadata used by
a container.
spring.io
1.1. Introduction to the Spring IoC Container and Beans
What is BEAN?

6. Spring Bean Life Cycle

7. ?
!
.
.
iOS SDK ? . ?
라이브러리나 프레임워크 등을 가져다 써보기전에 반드시 선행되어야하는 것은, 내가 다루어야 하는 것
들에 대해 정확히 이해하는 것이다.
2010 1

8. 26 , 1

9. Spring Bean Life Cycle
https://akageun.github.io/2020/04/30/about-spring-bean-1.html

10. Bean Life Cycle Aware
https://howtodoinjava.com/spring-core/spring-bean-life-cycle/

11. Bean Life Cycle Aware Example
BeamNameAware

12. Initialization Destruction
Activation
Bean is ready to use Container is shutdown
Bean Life Cycle

13. Bean Life Cycle
컨테이너 생성 의존관계 주입 초기화 콜백
Activation
소멸되기전 콜백
종료

14. IoC(Inversion of Controller)
new

15. https://devlog-wjdrbs96.tistory.com/320
ApplicationContext

16. - 13p
• TicketSeller Theater
•
• IoC

17. 1. Audience Bag
2. Bag
3. TicketSellet TicketOffice
4. TicketOffice Ticket
- 13p
• TicketSeller Theater
•
• IoC

18. - 17p

19. django admin setup
django admin page

20. Bean Spring IoC
1. Using XML
2. Using annotations

21. Bean Spring IoC
1. Using XML
2. Using annotations
https://devwithus.com/what-is-spring-bean/

22. Bean Spring IoC
1. Using XML
2. Using annotations
https://devwithus.com/what-is-spring-bean/

23. Bean Spring IoC
1. Using XML
2. Using annotations
XML 설정보다 Java 설정을 사용해야 하는 이유 XML 설정보다 Java 설정을 사용해야 하는 이유
https://mangkyu.tistory.com/158
1. .
2.
3.

24. Bean Spring IoC
1. Using XML
2. Using “stereotype” annotations

25. 1. Using XML
2. Using annotations
Bean Spring IoC

26. 1. Using XML
2. Using annotations
Bean Spring IoC

27. Bean Spring IoC
1. Using XML
2. Using “stereotype” annotations
스프링 컨테이너가 스프링 관리 컴포넌트로 식별하게 해주는 단순한 마커
scan-auto-detection과 dependency injection을 사용하기 위해서 사용되는 가장 기본 어노테이션

28. Bean Spring IoC
@Component
@Controller @Service @Repository
1. Using XML
2. Using annotations
Such classes are considered as candidates for auto-detection
when using annotation-based configuration and classpath scanning.

29. Bean Spring IoC
@Component
@Controller @Service @Repository
A stereotype used at class level in spring MVC.
It marks a class as a spring web controller, responsible to handle HTTP request!
1. Using XML
2. Using annotations

30. Bean Spring IoC
@Component
@Service @Repository
@Controller
Service annotation is basically used for classes which hold business logic in the service layer.
It gives a logical sense that a class is a service
1. Using XML
2. Using annotations

31. Bean Spring IoC
@Component
@Controller @Service @Repository
Repository annotation is used to indicate that a class is a repository
Provides exception translation support for persistence operations
1. Using XML
2. Using annotations

32. Week2. END.