1.安装Mysql5.7

源

wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
rpm -ivh mysql57-community-release-el7-9.noarch.rpm

安装

yum install mysql-server --nogpgcheck

启动

systemctl start mysqld

修改配置文件（不需要使用弱密码忽略此步骤）

vim /etc/my.cnf

最后一行添加 validate_password=off

获取临时密码

grep 'temporary password' /var/log/mysqld.log

登录Mysql

mysql -uroot -p

设置密码

SET PASSWORD=PASSWORD('Root1234@');

重启Mysql

systemctl restart mysqld

Done! 再次登录即可使用。

参考链接：
https://blog.csdn.net/qq_25983579/article/details/104649056
https://www.jianshu.com/p/e67fce08bada
https://blog.csdn.net/haha__momo/article/details/123567037