进入Docker版mysql内部

docker exec -it mysql /bin/bash

进入mysql软件内部

mysql -u<username> -p<password>

新建数据库

CREATE DATABASE `<dbName>` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;```

赋予用户数据库权限

GRANT ALL ON `<dbName>`.* TO '<username>'@'%';

flush privileges;