maven setting.xml

<?xml version="1.0" encoding="UTF-8"?>

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">

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

  </mirrors>
</settings>