1、下載JDK

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

2、下載Maven(下載地址：https://maven.apache.org/download.cgi)，解壓。

SystemRequirements:

JDK Maven 3.3+ require JDK 1.7 or above to execute - they still allows you to build against 1.3 and other JDK versions by Using Toolchains

3、打開Terminal，輸入以下命令，設置Maven classpath

$ vi ~/.bash_profile

4、添加下列兩行代碼，之後保存並退出Vi：

export M2_HOME=/Users/john/apache-maven-3.5.4
export PATH=$PATH:$M2_HOME/bin

5、輸入命令以使bash_profile生效

$ source ~/.bash_profile

6、輸入mvn -v查看Maven是否安裝成功

192:apache-maven-3.5.4 john$ mvn -v

Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-18T02:33:14+08:00)
Maven home: 
 
/Users/john/apache-maven-3.5.4
Java version: 1.8.0_181, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "mac os x", version: "10.13.6", arch: "x86_64", family: "mac"

7、IntelliJ IDEA安裝Maven插件

Preferences

最後點擊 Apply和Ok按鈕

1.2 Mac下配置maven環境變量