macOS Maven路径 一般在
/usr/local/maven/apache-maven-3.6.3
进入conf目录，修改settings.xml，

sudo vim /usr/local/maven/apache-maven-3.6.3/conf/settings.xml

找到mirror元素，添加阿里云仓库镜像代码，如下

<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>aliyunmaven</id>
      <mirrorOf>*</mirrorOf>
      <name>Aliyun Maven Public</name>
      <url>https://maven.aliyun.com/repository/public</url>
    </mirror>
  </mirrors>

接下来在IDE中配置Maven的安装路径和自定义的配置文件路径即可。