maven

设置setting

 <mirror>
            <id>nexus-aliyun</id>
            <mirrorOf>*,!jeecg,!jeecg-snapshots,!getui-nexus</mirrorOf>
            <name>Nexus aliyun</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public</url>
        </mirror> 

setting 详细介绍

https://www.cnblogs.com/jingmoxukong/p/6050172.html?utm_source=gold_browser_extension