Install multiple versions of JDK under MAC and switch several ways

1. Modify the .bash_profile file through the vi command

2. Enter the following:

# Mac default JDK 6 (Mac comes with a jdk6 version by default)  

export JAVA_6_HOME=`/usr/libexec/java_home -v 1.6`  

# set JDK 7  

export JAVA_7_HOME=`/usr/libexec/java_home -v 1.7`  

# set JDK 8  

export JAVA_8_HOME=`/usr/libexec/java_home -v 1.8`  

  

#Default JDK 6  

export JAVA_HOME=$JAVA_6_HOME  

  

#alias command to dynamically switch JDK version  

alias jdk6="export JAVA_HOME=$JAVA_6_HOME"  

alias jdk7="export JAVA_HOME=$JAVA_7_HOME"  

alias jdk8="export JAVA_HOME=$JAVA_8_HOME"  

3, then execute source .bash_profile to take effect the new configuration 

When using, switch the different versions by executing jdk6, jdk7, jdk8 on the command line