项目报错 Cause: java.sql.SQLException: The user specified as a definer ('root'@'%') does not exist 的解决方案

权限问题，授权给 root 所有sql 权限

mysql> grant all privileges on *.* to root@"%" identified by ".";
mysql> flush privileges;

方案来源：https://blog.youkuaiyun.com/u013019338/article/details/51880156