brew install mongodb 安装mongodb
ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents 这个一定要执行
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist 开机启动

启动|停止

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launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

设置快捷命令

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vim ~/.bash_aliases 
## 写入下面内容
alias mongo.start='launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
alias mongo.stop='launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
alias mongo.restart='mongo.stop && mongo.start'

然后

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vim ~/.bash_profile
[[ -f ~/.bash_aliases ]] && . ~/.bash_aliases  ## 写入这个
source .bash_profile ## 更新bash_profile

就可以用mongo.start mongo.stop mongo.restart 来进行开启,关闭,重启 mongodb的服务了