下面是我收集的一些maven镜像，每个都试过了，都能下载！
<mirror>
<id>repo2</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://repo2.maven.org/maven2/</url>
</mirror>
<mirror>
<id>net-cn</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://maven.net.cn/content/groups/public/</url>
</mirror>
<mirror>
<id>ui</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://uk.maven.org/maven2/</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>skynet.be</id>
<url>http://maven2.mirrors.skynet.be/pub/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>
<mirror>
<id>cica.es</id>
<url>http://ftp.cica.es/mirrors/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>
<mirror>
<id>ibiblio.org</id>
<name>ibiblio Mirror of http://repo1.maven.org/maven2/</name>
<url>http://mirrors.ibiblio.org/pub/mirrors/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>