配置maven阿里云镜像，解决idea下载依赖速度慢

1.打开maven配置文件setting.xml

2.替换标签

     
          alimaven
          aliyun maven
          http://maven.aliyun.com/nexus/content/groups/public/
          central
      

      
          uk
          central
          Human Readable Name for this Mirror.
          http://uk.maven.org/maven2/
      

      
          CN
          OSChina Central
          http://maven.oschina.net/content/groups/public/
          central
      

      
          nexus
          internal nexus repository
          http://repo.maven.apache.org/maven2
          central