4.0.0 org.springframework.boot spring-boot-starter-parent 2.3.2.RELEASE spring-boot-basic-customization jar spring-boot-basic-customization Module For Spring Boot Basic Customization org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-thymeleaf org.springframework.boot spring-boot-starter-test test com.baeldung.changeport.CustomApplication