idea maven配置阿里云镜像

https://blog.csdn.net/LJH_laura_li/article/details/104850229

注意配置缩进

<mirrors>
<mirror>
<id>alimaven</id>
<name>aliyun maven</name>
<url>https://maven.aliyun.com/repository/central</url>
<mirrorOf>central</mirrorOf>
</mirror>
</mirrors>