metadata-transfer-example com.tencent.cloud ${revision} ../pom.xml 4.0.0 metadata-middle Spring Cloud Tencent Metadata Transfer Middle Service com.tencent.cloud spring-cloud-starter-tencent-polaris-discovery org.springframework.boot spring-boot-maven-plugin repackage org.apache.maven.plugins maven-source-plugin 3.2.0 attach-sources jar