Mac安装JDK
1.JDK地址下载
https://adoptopenjdk.net/?variant=openjdk8&jvmVariant=hotspot
2.解决链接
https://apple.stackexchange.com/questions/334384/how-can-i-install-java-openjdk-8-on-high-sierra
3.方法
安装最新版JDK
brew cask install adoptopenjdk
安装某个特定版本的jdk:
brew tap AdoptOpenJDK/openjdk
brew cask install adoptopenjdk8
brew cask install adoptopenjdk9