出自:http://www.jayway.com/2014/01/15/how-to-switch-jdk-version-on-mac-os-x-maverick/
Apple decided to remove the Java Preferences application in a software update and afterwards in has been difficult to change the JDK version on Mac OS X. I especially noticed this after I installed the JDK 8 early access preview which makes some of the tips that you find on various blogs online useless. After a lot of googling I finally found a simple solution that I’d like to share.
What you do is to edit your ~/.bash_profile
and add the following:
What the script does is to first remove other JDK versions in the PATH
so that they won’t interfere with our new JDK version. Then it makes some clever use of /usr/libexec/java_home
which is a command that lists installed JDK versions. The -v
argument tells java_home
to return the path of the JDK with the supplied version, for example 1.7. We also update the PATH
to point to the bin
directory of the newly found JAVA_HOME
directory. At the end we can simply execute the function using
which selects the latest installed JDK version of the 1.7 branch. To select a specific version you can simply execute
instead. Run /usr/libexec/java_home -h
to get more details on how to choose versions.
That’s it! All credits should go to Neeme Praks and his answer on superuser.com.