mac java sdk6、7、8随时切换设置

mac环境变量bash文件设置

#随时切换java678
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=$JAVA_7_HOME
alias java8='export JAVA_HOME=$JAVA_8_HOME'
alias java7='export JAVA_HOME=$JAVA_7_HOME'
alias java6='export JAVA_HOME=$JAVA_6_HOME'

使用中可随时切换

shenrhMacBook:~ shenrh$ java6
shenrhMacBook:~ shenrh$ 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)
shenrhMacBook:~ shenrh$ java7        
shenrhMacBook:~ shenrh$ 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)