[SpringBoot] 1-2장 환경설정, MVC 패턴, 레이아웃

01_환경설정JDK : 17IDE : IntelliJSpringBoot : 3.1.0 02_Hello World 출력하기📍 프로젝트 실행src/main/java/com.example.firstproject/FirstprojectApplication.javapackage com.example.firstproject;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class FirstprojectApplication { public static void main(String[] args) ..