How to set JAVA_HOME in Mac permanently?

问题

I am trying to set JAVA_HOME by entering export JAVA_HOME=/Library/Java/Home at terminal. It sets the JAVA_HOME for current session.

How can I set it permanently?

回答1:

I know it has been a while for this question, but I just wanted to share the following piece of information that I came across today.

You can use /usr/libexec/java_home -v <version you want> to get the path you need for JAVA_HOME. For instance, to get the path to the 1.7 JDK you can run /usr/libexec/java_home -v 1.7 and it will return the path to the JDK. In your .profile or .bash_profile just add

export JAVA_HOME=`/usr/libexec/java_home -v <version>`

and you should be good. Alternatively, try and convince the maintainers of java tools you use to make use of this method to get the version they need.

To open '.bash_profile' type the following in terminal :

nano ~/.bash_profile

and add the following line to the file:

export JAVA_HOME=`/usr/libexec/java_home -v <version>`

Press CTRL+X to exit the bash. Press 'Y' to save changes.

To check whether the path has been added, type following in terminal:

source ~/.bash_profile
echo $JAVA_HOME

回答2:

This link may helps you: http://developer.apple.com/library/mac/#/legacy/mac/library/qa/qa1067/_index.html

Also, you can put the environment variable in one of these files:

~/.bashrc
~/.bash_profile
~/.profile

回答3:

Try this link http://www.mkyong.com/java/how-to-set-java_home-environment-variable-on-mac-os-x/

This explains correctly, I did the following to make it work

Open Terminal
Type vim .bash_profile
Type your java instalation dir in my case export JAVA_HOME="/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
Click ESC then type :wq (save and quit in vim)
Then type source .bash_profile
echo $JAVA_HOME if you see the path you are all set.

Hope it helps.

回答4:

Besides the settings for bash/ zsh terminal which are well covered by the other answers, if you want a permanent system environment variable for terminal + GUI applications (works for macOS Sierra; should work for El Capitan too):

launchctl setenv JAVA_HOME $(/usr/libexec/java_home -v 1.8)

(this will set JAVA_HOME to the latest 1.8 JDK, chances are you have gone through serveral updates e.g. javac 1.8.0_101, javac 1.8.0_131)

Of course, change 1.8 to 1.7 or 1.6 (really?) to suit your need and your system

回答5:

To set your Java path on mac:

Open terminal on mac, change path to the root cd ~
vi .bash_profile (This opens the bash_profile file)
Click I to insert text and use the following text to set JAVA_HOME and PATH
- export JAVA_HOME='/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home'
- export PATH=$JAVA_HOME/bin:$PATH
  1. Type :wq to save and exit the file.
  2. Type source .bash_profile to execute the .bash_profile file.
  3. You can type echo $JAVA_HOME or echo $PATH

回答6:

Adding to Dilips's answer, if you are working with JDK 9, use the following (my JDK version is 9.0.4) in Step # 3:

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-9.0.4.jdk/Contents/Home

回答7:

sql-surfer and MikroDel,

actually, the answer is not that complicated! You just need to add:

export JAVA_HOME=(/usr/libexec/java_home)

to your shell profile/configuration file. The only question is - which shell are you using? If you're using for example FISH, then adding that line to .profile or .bash_profile will not work at all. Adding it to config.fish file though will do the trick. Permanently.

回答8:

Terminal.app is a terminal emulator. It executes your shell, bash by default. Put your command in .bashrc in your home folder and any new sessions should pick that up. For more information on bash, look at the manual.

回答9:

I was facing the same issue in MAC Catalina, If I edit .bash_profile i found export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home But When I run terminal echo $JAVA_HOME it was returning empty, Later I found that the file .zshrc was missing I created this file with

touch .zshrc

Then edit it by nano .zshrc and wrote

source ~/.bash_profile

Which solves my issue permanently

回答10:

add following

setenv JAVA_HOME /System/Library/Frameworks/JavaVM.framework/Home

in your ~/.login file:

回答11:

to set JAVA_HOME permenantly in mac make sure you have JDK installed in your system, if jdk is not installed you can download it from here https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

After installing jdk follow these steps :-

1) Open Terminal

2) Type "vim .bash_profile"

3) press "i" to edit or enter the path

4) Type your java instalation dir :- export JAVA_HOME=$(/usr/libexec/java_home)

5) Click ESC then type ":wq" (save and quit in vim)

6) Then type "source .bash_profile"

7) type "echo $JAVA_HOME" if you see the path you are all set.

THANK YOU

来源：https://stackoverflow.com/questions/14702702/how-to-set-java-home-in-mac-permanently

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java

macos

java-home