getBeanDefinition()

ApplicationContext말고 구체화된 클래스(예: AnnotationConfigApplicationContext)를 쓰는 이유 : getBeanDefinition을 쓸 수 없어서

getBeanDefinition()

• 해당 메서드는 GenericApplicationContext가 제공하며 이 클래스를 AnnotationConfigApplicationContext가 상속받아서 사용 가능함.

<GenericApplicationContext 中>

<AnnotationConfigApplicationContext 中:GenericApplicationContext를 상속받아 사용 가능한 메서드 모음>

참고:

ApplicationContext

• ApplicationContext (Spring Framework 5.3.10 API)
• https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/ApplicationContext.html

AnnotationConfigApplicationContext

• AnnotationConfigApplicationContext (Spring Framework 5.3.10 API)
• https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/AnnotationConfigApplicationContext.html

GenericApplicationContext

• GenericApplicationContext (Spring Framework 5.3.10 API)
• https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/support/GenericApplicationContext.html