Maven配置阿里云中央仓库镜像

    <mirror>
        <!--This sends everything else to /public -->
        <id>nexus-aliyun</id>
        <mirrorOf>*</mirrorOf>
        <name>Nexus aliyun</name>
        <url>http://maven.aliyun.com/nexus/content/groups/public</url>
    </mirror>