IDEA maven 使用阿里云仓库

<repository>
   <id>maven-ali</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>