解决idea下载依赖包慢到出奇

右键项目选中maven选项，然后选择“open settings.xml”或者 “create settings.xml”，然后把如下代码粘贴进去就可以了。重启IDE。

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
 3           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4           xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
 5     <mirrors> <!-- mirror
 6          | Specifies a repository mirror site to use instead of a given repository. The repository that
 7          | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
 8          | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
 9          |
10         <mirror>
11           <id>mirrorId</id>
12           <mirrorOf>repositoryId</mirrorOf>
13           <name>Human Readable Name for this Mirror.</name>
14           <url>http://my.repository.com/repo/path</url>
15         </mirror>
16          -->
17         <mirror>
18             <id>alimaven</id>
19             <name>aliyun maven</name>
20             <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
21             <mirrorOf>central</mirrorOf>
22         </mirror>
23         <mirror>
24             <id>uk</id>
25             <mirrorOf>central</mirrorOf>
26             <name>Human Readable Name for this Mirror.</name>
27             <url>http://uk.maven.org/maven2/</url>
28         </mirror>
29         <mirror>
30             <id>CN</id>
31             <name>OSChina Central</name>
32             <url>http://maven.oschina.net/content/groups/public/</url>
33             <mirrorOf>central</mirrorOf>
34         </mirror>
35         <mirror>
36             <id>nexus</id>
37             <name>internal nexus repository
38             </name> <!-- <url>http://192.168.1.100:8081/nexus/content/groups/public/</url>-->
39             <url>http://repo.maven.apache.org/maven2</url>
40             <mirrorOf>central</mirrorOf>
41         </mirror>
42     </mirrors>
43 </settings>

原文地址：https://www.cnblogs.com/Liuyt-61/p/10375211.html