1、打开配置文件
vim ~/.bash_profile
2、输入 jdk路径和maven路径，根据自身安装地址修改
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_281.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
export PATH=$PATH:/usr/local/mysql/bin
export MAVEN_HOME=/Users/keying/Downloads/apache-maven-3.6.3
export PATH=${MAVEN_HOME}/bin:$PATH
3、使配置文件生效
source ~/.bash_profile
