1、创建settings.xml文件
<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
https://maven.apache.org/xsd/settings-1.0.0.xsd">
<localRepository/>
<interactiveMode/>
<usePluginRegistry/>
<offline/>
<pluginGroups/>
<servers/>
<mirrors>
<mirror>
<!--该镜像的id-->
<id>nexus-aliyun</id>
<!--该镜像用来取代的远程仓库,central是中央仓库的id-->
<mirrorOf>central</mirrorOf>
<name>Nexus aliyun</name>
<!--该镜像的仓库地址,这里是用的阿里的仓库-->
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
</mirrors>
<proxies/>
<profiles>
<profile>
<id>jdk-1.8</id>
<activation>
<activeByDefault>true</activeByDefault>
<jdk>1.8</jdk>
</activation>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
</properties>
</profile>
</profiles>
<activeProfiles/>
</settings>
2、把该图位置选择你的settings文件,保存即可