Strategy interface for resolving messages, with support for the parameterization and internationalization of such messages. MessageSource 인터페이스에 있는 메소드들은 다음과 같습니다. 이 인터페이스를 구현한 클래스들은 다음과 같습니다. AbstractApplicationContext, AbstractMessageSource, AbstractRefreshableApplicationContext, AbstractRefreshablePortletApplicationContext, AbstractRefreshableWebApplicationContext, AbstractXmlApplicationContext, ClassPathXmlApplicationContext, DelegatingMessageSource, FileSystemXmlApplicationContext, GenericApplicationContext, GenericWebApplicationContext, ReloadableResourceBundleMessageSource, ResourceBundleMessageSource, StaticApplicationContext, StaticMessageSource, StaticPortletApplicationContext, StaticWebApplicationContext,