先查看是否开启firewalld systemctl status firewalld 如果是未开启状态先要启用firewalld，执行以下命令开启firewalld systemctl start firewalld 查看已放行的端口 firewall-cmd --zone=publi...

-- 创建数据库，指定默认字符编码和排序方式 create database db1 default character set utf8mb4 collate utf8mb4_general_ci; -- 创建用户 CREATE USER 'test'@'127.0.0.1' IDENTIFIED BY '12...