一、官網下載MAC版本的JDK，這裡用的jdk版本是 1.7，得到jdk-7u79-macosx-x64.dmg，雙擊直接預設安裝，預設安裝路徑是

/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk

二、下載Maven，這裡用的Maven版本是3.0.5，放到指定目錄，我的目錄是/Users/longwnetao/java/apache-maven-3.0.5

三、在使用者根目錄下，輸入如下命令編輯.bash_profile檔案

cd ~

vi .bash_profile(檔案不存在則新建)

在檔案中輸入以下內容

#JDK安裝目錄，一定要指定到Contents/Home

JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home"

#Maven存放路徑

MAVEN_HOME="/Users/longwentao/java/apache-maven-3.0.5"

export MAVEN_HOME

export JAVA_HOME

export PATH=${PATH}:${MAVEN_HOME}/bin:${JAVA_HOME}/bin

按esc鍵退出編輯模式，輸入wq儲存退出編輯

輸入source .bash_profile命令，使.bash_profile檔案生效

輸入java -version命令，

longwentaodeMacBook-Pro:java longwentao$ java -version

java version "1.7.0_79"

Java(TM) SE Runtime Environment (build 1.7.0_79-b15)

Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

輸入man -v命令，驗證Maven安裝結果，出現如下結果，證明安裝成功

longwentaodeMacBook-Pro:java longwentao$ mvn -v

Apache Maven 3.0.5 (r01de14724cdef164cd33c7c8c2fe155faf9602da; 2013-02-19 21:51:28+0800)

Maven home: /Users/longwentao/java/apache-maven-3.0.5

Java version: 1.7.0_79, vendor: Oracle Corporation

Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre

Default locale: zh_CN, platform encoding: UTF-8

OS name: "mac os x", version: "10.11.6", arch: "x86_64", family: "mac"