解决远程连接mysql 报 2003错误的问题(docker)

解决办法：
一、在docker中启动mysql,定义端口号3306

[root@localhost ~]# docker run -p 3306:3306 --name mysql01 -e MYSQL_ROOT_PASSWORD=123456 -d mysql

二、执行命令，输入密码

[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、授权

mysql> GRANT ALL ON . TO ‘root’@’%’;

四、刷新权限

mysql> flush privileges;

五、更改加密规则

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

六、更新root用户密码（123456是我的密码，要替换成自己的）

mysql> ALTER USER ‘root’@’%’ IDENTIFIED WITH mysql_native_password BY ‘123456’;

七、刷新权限
mysql> flush privileges;

作者：JAVAWeb小将
来源：优快云
原文：https://blog.youkuaiyun.com/hcrw01/article/details/83375943
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