[Java] jenv 구성

참고문서)
https://brew.sh/index_ko

 

$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
$ brew install jenv

$ brew tap AdoptOpenJDK/openjdk

 

    # Shell: bash
    echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.bash_profile
    echo 'eval "$(jenv init -)"' >> ~/.bash_profile

    $ source ~/.bash_profile
    
    # Shell: zsh
    echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.zshrc
    echo 'eval "$(jenv init -)"' >> ~/.zshrc

    $ source ~/.zshrc

 

jdk version 별 설치 하기)
$ brew install --cask adoptopenjdk8
$ brew install --cask adoptopenjdk11
$ brew install --cask adoptopenjdk15
$ brew install --cask adoptopenjdk16

 

jenv 추가)
$ jenv add /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/adoptopenjdk-15.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/adoptopenjdk-16.jdk/Contents/Home

 

jenv 사용)

Usage: jenv <command> [<args>]

Some useful jenv commands are:
   commands    List all available jenv commands
   local       Set or show the local application-specific Java version
   global      Set or show the global Java version
   shell       Set or show the shell-specific Java version
   rehash      Rehash jenv shims (run this after installing executables)
   version     Show the current Java version and its origin
   versions    List all Java versions available to jenv
   which       Display the full path to an executable
   whence      List all Java versions that contain the given executable
   add         Add JDK into jenv. A alias name will be generated by parsing "java -version"

See `jenv help <command>' for information on a specific command.
For full documentation, see: https://github.com/jenv/jenv/blob/master/README.md

 

$ jenv versions

  system
  1.8
* 1.8.0.242 (set by /Users/mzc02-henryjeong/.jenv/version)
  11.0
  11.0.6
  13.0
  13.0.2
  15
  15.0
  15.0.2
  16
  openjdk64-1.8.0.242
  openjdk64-11.0.6
  openjdk64-13.0.2
  openjdk64-15.0.2
  openjdk64-16

JAVA_HOME 변경을 위한 plugin 설치)

$ jenv enable-plugin export

(주의 : eval "$(jenv init -)" 설정이 빠져 있으면 동작 하지 않습니다.)

 

jenv global 설정)

/Users/henryjeong/.jenv/version

 

$ jenv global 11.0
$ jenv global
11.0

 

jenv local 설정)

$ jenv local 16
$ jenv local
16
$ java -version
openjdk version "16" 2021-03-16
OpenJDK Runtime Environment AdoptOpenJDK (build 16+36)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 16+36, mixed mode, sharing)

 

로컬 설정은 해당 버전이 필요한 Application 에 들어가서 실행 하시면 됩니다.