4.0.0 org.springframework.boot spring-boot-starter-parent 2.7.5 nl.org demo 0.0.1-SNAPSHOT DepartmentTrainingDemo pom Department Personnel Training Demo transactional-demo 8 org.springframework.boot spring-boot-starter-jdbc 2.7.5 org.springframework.boot spring-boot-starter-web 2.7.5 com.alibaba fastjson 1.2.70 mysql mysql-connector-java 8.0.21 runtime cn.hutool hutool-all 5.7.14 org.springframework.boot spring-boot-starter-test 2.7.5 test org.springframework.boot spring-boot-maven-plugin