Mac下安装jdk1.6及添加java环境变量

方法：

临时提权

sudo su

输入密码

vi /etc/profile

export JAVA_6_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home

export JAVA_7_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0.jdk/Contents/Home

export JAVA_8_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home

export JAVA_HOME=$JAVA_6_HOME

alias jdk8=’export JAVA_HOME=$JAVA_8_HOME’

alias jdk6=’export JAVA_HOME=$JAVA_6_HOME’

保存后新开终端窗口，执行java -version

java version “1.6.0_65”

Java(TM) SE Runtime Environment (build 1.6.0_65-b14-466.1-11M4716)

Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-466.1, mixed mode)

输入jdk8将切换到java_home为jdk8的环境