多jdk自由切换

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.bash_profile配置:

# jdk config
JAVA_8=/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home
JAVA_10=/Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
alias jdk8='export JAVA_HOME=$JAVA_8'
alias jdk10='export JAVA_HOME=$JAVA_10'
CLASSPATH=$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export CLASSPATH

配置完保存 执行source ~/.bash_profile生效

效果:

➜  ~ jdk8
➜  ~ java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)
➜  ~ jdk10
➜  ~ java -version
java version "10.0.2" 2018-07-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)