先用命令行vi建立这个XML

sudo vi /Library/LaunchDaemons/com.mysql.mysql.plist





<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-   1.0.dtd"> 
<plist version="1.0"> 
<dict> 
<key>KeepAlive</key> 
<true/> 
<key>Label</key> 
<string>com.mysql.mysqld</string> 
<key>ProgramArguments</key> 
<array> 
<string>/usr/local/mysql/bin/mysqld_safe</string> 
<string>--user=mysql</string> 
</array> 
</dict> 
</plist>




运行命令



sudo chown root /Library/LaunchDaemons/com.mysql.mysql.plist
sudo chgrp wheel /Library/LaunchDaemons/com.mysql.mysql.plist
sudo chmod 644 /Library/LaunchDaemons/com.mysql.mysql.plist




再运行命令


sudo launchctl load -w /Library/LaunchDaemons/com.mysql.mysql.plist