4.0.0 com.bookstore book-store pom 1.0 book-push book-server 8 8 1.8 org.springframework.boot spring-boot-starter-parent 2.1.5.RELEASE org.codehaus.mojo versions-maven-plugin 2.3 false com.alvin.springboot springboot-main ${project.version} org.springframework.cloud spring-cloud-dependencies Greenwich.SR2 pom import