4.0.0 com.alvin.springboot springboot-parent pom 1.0-SNAPSHOT springboot-common springboot-main springboot-dao org.springframework.boot spring-boot-starter-parent 2.1.5.RELEASE UTF-8 UTF-8 1.8 org.codehaus.mojo versions-maven-plugin org.springframework.cloud spring-cloud-dependencies Greenwich.SR2 pom import