从github或者gitee clone下来的项目maven构建时依赖下载慢问题，可以把maven中央参考修改为aliyun
用户根目录下面修改/增加 ~/.m2/settings.xml文件，内容参考如下：
<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">
<localRepository/>
<interactiveMode/>
<usePluginRegistry/>
<offline/>
<pluginGroups/>
<servers/>
<mirrors>
<mirror>
<id>aliyunmaven</id>
<mirrorOf>central</mirrorOf>
<name>阿里云公共仓库</name>
<url>https://maven.aliyun.com/repository/central</url>
</mirror>
<mirror>
<id>repo1</id>
<mirrorOf>central</mirrorOf>
<name>central repo</name>
<url>http://repo1.maven.org/maven2/</url>
</mirror>
<mirror>
<id>aliyunmaven</id>
<mirrorOf>apache snapshots</mirrorOf>
<name>阿里云阿帕奇仓库</name>
<url>https://maven.aliyun.com/repository/apache-snapshots</url>
</mirror>
</mirrors>
<proxies/>
<activeProfiles/>
<profiles>
<profile>
<repositories>
<repository>
<id>aliyunmaven</id>
<name>aliyunmaven</name>
<url>https://maven.aliyun.com/repository/public</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>MavenCentral</id>
<url>http://repo1.maven.org/maven2/</url>
</repository>
<repository>
<id>aliyunmavenApache</id>
<url>https://maven.aliyun.com/repository/apache-snapshots</url>
</repository>
</repositories>
</profile>
</profiles>
</settings>
目测项目构建时依赖下载更新快了不少。