我用的是Netbeans集成的Maven工具,它的配置文件的地址是:

/home/sunny/netbeans-8.2/java/maven/conf/settings.xml

sudo vi settings.xml

搜索mirrors标签:

 <mirrors>
    <mirror>
      <id>alimaven</id>
      <name>aliyun maven</name>
      <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      <mirrorOf>central</mirrorOf>        
    </mirror>
  </mirrors>