resource

Resource (Spring Framework 7.0.3 API)docs.spring.io

java.net.URL 을 추상화 ApplicationContext 의 타입에 따라 Resource 의 구현체가 달라짐.

ApplicationContextType	Resource Implementation
ClassPathXmlApplicationContext	ClassPathResource
FileSystemXmlApplicationContext	FileSystemResource
WebApplicationContext	ServletContextResource

WebApplicationContext All Known Implementing Classes: AbstractRefreshableWebApplicationContext, AnnotationConfigWebApplicationContext, GenericWebApplicationContext, GroovyWebApplicationContext, StaticWebApplicationContext, XmlWebApplicationContext

ApplicationContext Type 에 상관 없이 리소스 구현체를 강제하려면 URL 접두어를 사용

/* using ClassPathResource */
new FileSystemXmlApplicationContext("classpath:com.harm...");
/* using FileUrlResource */
new WebApplicationContext("file://data/web/config/...");