Maven - 解决Maven下载依赖包速度慢问题

通常我们会因为下载jar包速度缓慢而苦恼，这十分影响开发效率，以及程序员的心情，在IDE下载jar时，无法对IDE做任何动作，只能大眼对小眼。

下载jar速度慢究其原因就是因为很多资源都是国外的，我们下载一个小文件几乎就跨越了一个太平洋那么远，那么有什么方法可以让下载速度变快呢？

其实方法很简单：maven是支持镜像的，我们可以在${maven_home}的conf目录下的setting.xml文件中找到<mirrors></mirrors>标签

<mirrors>
<!-- mirror
| Specifies a repository mirror site to use instead of a given repository. The repository that
| this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
| for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
|
<mirror>
<id>mirrorId</id>
<mirrorOf>repositoryId</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://my.repository.com/repo/path</url>
</mirror>
-->

</mirrors>

在这个标签中加入国内的镜像即可

这里我推荐maven阿里云中央仓库

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

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

下面是一些常用的maven国内镜像

<mirror>
<id>CN</id>
<name>OSChina Central</name>
<url>http://maven.oschina.net/content/groups/public/</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>
<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>JBossJBPM</id>
<mirrorOf>central</mirrorOf>
<name>JBossJBPM Repository</name>
<url>https://repository.jboss.org/nexus/content/repositories/releases/</url>
</mirror>
<mirror>
<id>antelink</id>
<mirrorOf>central</mirrorOf>
<name>antelink Repository</name>
<url>http://maven.antelink.com/content/repositories/central/</url>
</mirror>
<mirror>
<id>openkoala</id>
<mirrorOf>central</mirrorOf>
<name>openkoala Repository</name>
<url>http://nexus.openkoala.org/nexus/content/groups/Koala-release/</url>
</mirror>
<mirror>
<id>tmatesoft</id>
<mirrorOf>central</mirrorOf>
<name>tmatesoft Repository</name>
<url>http://maven.tmatesoft.com/content/groups/public/</url>
</mirror>
<mirror>
<id>mavensync</id>
<mirrorOf>central</mirrorOf>
<name>mavensync Repository</name>
<url>http://mavensync.zkoss.org/maven2/</url>
</mirror>