E:\Program FilesApache Software Foundationapache-maven-3.5.4-binconf\settings.xml
maven仓库中心mirrors配置多个下载中心(执行最快的镜像)

   <!--访问慢的网址放入到后面-->

<!-- 阿里云仓库镜像 -->

    <mirror>

        <id>alimaven</id>

        <mirrorOf>central</mirrorOf>

        <name>aliyun maven</name>

        <url>http://maven.aliyun.com/nexus/content/repositories/central/</url>

    </mirror>

     <mirror>

            <id>jboss-public-repository-group</id>

            <mirrorOf>central</mirrorOf>

            <name>JBoss Public Repository Group</name>

            <url>http://repository.jboss.org/nexus/content/groups/public</url>

        </mirror>

        <mirror>

            <id>ibiblio</id>

            <mirrorOf>central</mirrorOf>

            <name>Human Readable Name for this Mirror.</name>

            <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>

        </mirror>

        <mirror>

            <id>central</id>

            <name>Maven Repository Switchboard</name>

            <url>http://repo1.maven.org/maven2/</url>

            <mirrorOf>central</mirrorOf>

        </mirror>

        <mirror>

            <id>repo2</id>

            <mirrorOf>central</mirrorOf>

            <name>Human Readable Name for this Mirror.</name>

            <url>http://repo2.maven.org/maven2/</url>

        </mirror>

此处指定多个mirrors镜像，镜像只会执行第一个位置mirror。

https://www.cnblogs.com/tiancai/p/10066130.html

官网说明如下: http://maven.apache.org/guides/mini/guide-mirror-settings.html