4.0.0 org.springframework.boot spring-boot-starter-parent 3.4.5 com.example training-backend 0.1.0-SNAPSHOT training-backend Training project backend service 21 org.springframework.boot spring-boot-starter-web com.baomidou mybatis-plus-spring-boot3-starter 3.5.12 com.baomidou mybatis-plus-jsqlparser 3.5.12 org.springframework.boot spring-boot-starter-validation com.mysql mysql-connector-j runtime com.h2database h2 test org.springframework.boot spring-boot-starter-test test ${project.basedir}/build org.springframework.boot spring-boot-maven-plugin