Mac 配置JDK环境变量

一、下载JDK

# 下载地址：
https://www.oracle.com/java/technologies/downloads/

# MAC JDK 20：
https://download.oracle.com/java/20/latest/jdk-20_macos-x64_bin.dmg

二、查看JDK安装地址

# bogon:~ ds$ /usr/libexec/java_home -V

# Matching Java Virtual Machines (3):
    # 20 (x86_64) "Oracle Corporation" - "Java SE 20" /Library/Java/JavaVirtualMachines/jdk-20.jdk/Contents/Home
    # 1.8.201.09 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
    # 1.8.0_201 (x86_64) "Oracle Corporation" - "Java SE 8" # /Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home
# /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home

三、配置JDK环境

bogon:~ ds$ vim ~/.bash_profile

  JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-20.jdk/Contents/Home
  PATH=$JAVA_HOME/bin:$PATH:.
  CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:.
  export JAVA_HOME
  export PATH
  export CLASSPATH

bogon:~ ds$ source .bash_profile

bogon:~ ds$ java -version
java version "20" 2023-03-21
Java(TM) SE Runtime Environment (build 20+36-2344)
Java HotSpot(TM) 64-Bit Server VM (build 20+36-2344, mixed mode, sharing)

# IDEA 切换JDK
# Help - find Action
# 输入：switch Boot JDK

参考：
https://www.cnblogs.com/tanjiangtao/p/12953619.html