<!-- 使用阿里 maven 库 -->
	<repositories>
		<repository>
			<id>ali-maven</id>
			<url>http://maven.aliyun.com/nexus/content/groups/public</url>
			<releases>
				<enabled>true</enabled>
			</releases>
			<snapshots>
				<enabled>true</enabled>
				<updatePolicy>always</updatePolicy>
				<checksumPolicy>fail</checksumPolicy>
			</snapshots>
		</repository>
		<repository>
			<id>activiti-repos</id>
			<name>Activiti Repository</name>
			<url>https://maven.alfresco.com/nexus/content/groups/public</url>
		</repository>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
		<repository>
			<id>activiti-repos2</id>
			<name>Activiti Repository 2</name>
			<url>https://app.camunda.com/nexus/content/groups/public</url>
		</repository>
	</repositories>

settings.xml 配置镜像

    <mirror>
         <id>alimaven</id>
         <mirrorOf>central</mirrorOf>
         <name>aliyun maven</name>
         <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
    </mirror>