4.0.0 org.springframework.boot spring-boot-starter-parent 2.3.1.RELEASE com.example demo 0.0.1-SNAPSHOT demo Demo project for Spring Boot 1.8 org.springframework.boot spring-boot-starter-web mysql mysql-connector-java runtime org.springframework.boot spring-boot-starter-test test org.junit.vintage junit-vintage-engine org.springframework.boot spring-boot-maven-plugin