Mac切换Java环境

安装 jenv

https://github.com/jenv/jenv
配置

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

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

验证
jenv doctor

安装 JAVA

安装最新版JAVA

❯ brew install java 
❯ sudo ln -sfn /usr/local/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk
❯ jenv add "$(/usr/libexec/java_home)"

安装JAVA8

❯ brew install openjdk@8
❯ sudo ln -sfn /usr/local/opt/openjdk@8/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-8.jdk
❯ jenv add /Library/Java/JavaVirtualMachines/openjdk-8.jdk/Contents/Home/

安装JAVA11

❯ brew install openjdk@11
❯ sudo ln -sfn /usr/local/opt/openjdk@11/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-11.jdk
❯ jenv add /Library/Java/JavaVirtualMachines/openjdk-11.jdk/Contents/Home/

安装JAVA17

❯ brew install openjdk@17 
❯ sudo ln -sfn /usr/local/opt/openjdk@17/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk-17.jdk
❯ jenv add /Library/Java/JavaVirtualMachines/openjdk-17.jdk/Contents/Home/ 

切换JAVA版本

查看已安装版本
jenv versions
设置全局 Java 版本：
jenv global 1.8
设置局部（项⽬级）Java 版本：
jenv local 11.0 1
设置 Shell 级 Java 版本：
jenv shell 11.0