Error querying database. Cause: java.sql.SQLException: The user specified as a definer (‘root’@’%’) does not exist
### Cause: java.sql.SQLException: The user specified as a definer (‘root’@’%’) does not exist
遇到The user specified as a definer (‘root’@’%’) does not exist 问题，原因是没有权限，解决方法如下：
1、添加访问权限
执行SQL：grant all privileges on *.* to root@”%” identified by “.”;
2、更新权限
执行SQL： flush privileges;
问题解决。