设置用户数据库并授权

创建数据库用户，并且授予luffyapi这个库的权限

# 新建luffyapidb数据库
create database luffyapidb		

# 给luffyapi用户授权使用luffyapidb数据库的权限：远程+本地，【密码：Luffy123?】
grant all privileges on luffyapidb.* to 'luffyapi'@'%' identified by 'Luffy123?';
grant all privileges on luffyapidb.* to 'luffyapi'@'localhost' identified by 'Luffy123?';

# 刷新授权
flush privileges;