maven下载依赖jar速度慢

修改maven home/conf下的settings.xml文件，添加ali镜像到镜像列表中。

<mirrors>

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

<mirrors>