解決辦法：
一、在docker中啓動mysql,定義端口號3306
[root@localhost ~]# docker run -p 3306:3306 --name mysql01 -e MYSQL_ROOT_PASSWORD=123456 -d mysql
二、執行命令，輸入密碼
[root@localhost ~]# docker exec -it mysql01 bash
root@863b69d78d4f:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.12 MySQL Community Server - GPL
Copyright © 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.
mysql>
三、授權
mysql> GRANT ALL ON . TO ‘root’@’%’;
四、刷新權限
mysql> flush privileges;
五、更改加密規則
mysql> ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘password’ PASSWORD EXPIRE NEVER;
六、更新root用戶密碼（123456是我的密碼，要替換成自己的）
mysql> ALTER USER ‘root’@’%’ IDENTIFIED WITH mysql_native_password BY ‘123456’;
七、刷新權限
mysql> flush privileges;
作者：JAVAWeb小將
來源：CSDN
原文：https://blog.csdn.net/hcrw01/article/details/83375943
版權聲明：本文爲博主原創文章，轉載請附上博文鏈接！