4.0.0 com.legacy legacy-order-system 1.0.0 jar order-system 订单管理系统 org.springframework.boot spring-boot-starter-parent 2.1.18.RELEASE 1.8 UTF-8 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-jdbc com.h2database h2 runtime org.springframework.boot spring-boot-maven-plugin