maven #使用brew來下載maven
brew install maven
#接下來要修改配置文件將庫的下載地址改成阿里的，找setting.xml文件
mvn -v
#出現Maven home: /usr/local/Cellar/maven/3.5.3/libexec
#Java version: 1.8.0_161, vendor: Oracle Corporation
#Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home/jre
#Default locale: zh_CN, platform encoding: UTF-8
#OS name: "mac os x", version: "10.13.3", arch: "x86_64", family: "mac"
#則獲知maven文件的路徑，去libexex目錄下改文件,可以用cd的形式進目錄，也可以用finder中，前往文件夾進入該路徑
找到 <mirrors> </ mirrors>標籤，在標籤內部 添加內容如下：
<mirror>
<id>AliMaven</id>
<name>aliyun maven</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
