mysql 數據庫建立、添加用戶、設置外網訪問權限

出現此錯誤時：ERROR 1819 (HY000): Your password does not satisfy the current policy requirements，出現這個問題怎麼辦？

修改validate_password_policy參數的值。set global validate_password_policy=0;

一、修改用戶密碼。ALTER USER USER() IDENTIFIED BY '12345678';

二、建立用戶。CREATE USER 'db_user'@'%' IDENTIFIED BY '12345678';

三、受權。GRANT ALL PRIVILEGES ON *.* TO 'db_user'@'%' IDENTIFIED BY '12345678' WITH GRANT OPTION;

四、刷新。FLUSH PRIVILEGES;