1. 管理员权限运行命令提示符,登陆MySQL
mysql -u root -p
root
2. 修改账户密码加密规则并更新用户密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'root' PASSWORD EXPIRE NEVER; #修改加密规则
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root'; #更新一下用户的密码
3. 刷新权限并重置密码
FLUSH PRIVILEGES; #刷新权限
alter user 'root'@'localhost' identified by '111111'; #再重置下密码