解决IntelliJ IDEA maven库下载依赖包速度慢的问题

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
 <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>
   <name>aliyun maven</name>
   <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
   <mirrorOf>central</mirrorOf>
  </mirror>

  <mirror>
   <id>uk</id>
   <mirrorOf>central</mirrorOf>
   <name>Human Readable Name for this Mirror.</name>
   <url>http://uk.maven.org/maven2/</url>
  </mirror>

  <mirror>
   <id>CN</id>
   <name>OSChina Central</name>
   <url>http://maven.oschina.net/content/groups/public/</url>
   <mirrorOf>central</mirrorOf>
  </mirror>

  <mirror>
   <id>nexus</id>
   <name>internal nexus repository</name>
   <!-- <url>http://192.168.1.100:8081/nexus/content/groups/public/</url>-->
   <url>http://repo.maven.apache.org/maven2</url>
   <mirrorOf>central</mirrorOf>
  </mirror>

 </mirrors>
</settings>