정적 컨텐츠 스프링 부트는 정적 컨텐츠를 제공하고 있습니다 https://docs.spring.io/spring-boot/docs/2.3.1.RELEASE/reference/html/spring-boot-features.html#boot-features-spring-mvc-static-content Spring Boot Features Graceful shutdown is supported with all four embedded web servers (Jetty, Reactor Netty, Tomcat, and Undertow) and with both reactive and Servlet-based web applications. It occurs as part of closing the applic..