maven setting mirror配置

maven仓库镜像配置（配置到setting.xml中的<mirrors>中）

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