1. 下载mysql源rpm包
[root@VM-0-11-centos ~]# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
2. 安装mysql软件源
[root@VM-0-11-centos ~]# yum localinstall mysql57-community-release-el7-8.noarch.rpm -y
3. 开始安装mysql-server服务端和客户端
[root@VM-0-11-centos ~]# yum install mysql-community-server mysql -y
4. 启动mysql服务
[root@VM-0-11-centos ~]# systemctl restart mysqld
5. 找到第一次启动mysql-server时，软件自动分配的密码
[root@VM-0-11-centos ~]# grep temporary /var/log/mysqld.log
6. 然后登陆mysql-server
[root@VM-0-11-centos ~]# mysql -uroot -pR4LsefrRJo&-
7. yum安装mysql5.7服务完成