MacOS 配置JAVA_HOME环境变量

在启动rocketmq时遇到报错了：

Please set the JAVA_HOME variable in your environment, We need java(x64)

1.找到jdk安装位置

/usr/libexec/java_home
# => /Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home

2.配置环境变量到 .bash_profile 或 .zshrc中

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home

3.使配置生效

source ~/.bash_profile
# 或 source ~/.zshrc