使用navicat 连接mysql出现1251错误

连接总是出现错误，故在此记录一下解决方法

方法来自：https://blog.csdn.net/XDMFC/article/details/80263215

错误：Client does not support authentication protocol requested by server; consider upgrading MySQL client

解决方法：mysql -u root -p 

输入密码 进入root用户

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123';

mysql> FLUSH PRIVILEGES;