出自：https://blog.csdn.net/wfm19970/article/details/79551664
在idea你file-->setting搜索maven如下图：
配置文件你的镜像如果用默认的话非常慢，所以建议用阿里云的。配置文件如下：
<
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>
-->
<
mirror
>
<
id
>alimaven
</
id
>
<
mirrorOf
>central
</
mirrorOf
>
<
name
>aliyun maven
</
name
>
<
url
>http://maven.aliyun.com/nexus/content/repositories/central/
</
url
>
</
mirror
>
<
mirror
>
<
id
>alimaven
</
id
>
<
name
>aliyun maven
</
name
>
<
url
>http://maven.aliyun.com/nexus/content/groups/public/
</
url
>
<
mirrorOf
>central
</
mirrorOf
>
</
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
>
<
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
>google-maven-central
</
id
>
<
name
>Google Maven Central
</
name
>
<
url
>https://maven-central.storage.googleapis.com
</
url
>
<
mirrorOf
>central
</
mirrorOf
>
</
mirror
>
<!-- 中央仓库在中国的镜像 -->
<
mirror
>
<
id
>maven.net.cn
</
id
>
<
name
>oneof the central mirrors in china
</
name
>
<
url
>http://maven.net.cn/content/groups/public/
</
url
>
<
mirrorOf
>central
</
mirrorOf
>
</
mirror
>
</
mirrors
>
原文链接
https://www.cnblogs.com/phpdragon/p/7216626.html