mysql5.7安装教程

首先下载mysql 的rpm包

wget https://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-client-5.7.30-1.el7.x86_64.rpm

wget https://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-server-5.7.30-1.el7.x86_64.rpm

wget https://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-libs-5.7.30-1.el7.x86_64.rpm

wget https://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-commom-5.7.30-1.el7.x86_64.rpm

wget https://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-common-5.7.30-1.el7.x86_64.rpm

这里选择的是国内源，下载很快。

安装依赖包

yum install -y net-tools.x86_64，libaio.x86_64，perl.x86_64

安装mysql

先后顺序是 common libs client server

rpm -ivh mysql-community-common-5.7.30-1.el7.x86_64.rpm

rpm -ivh mysql-community-libs-5.7.30-1.el7.x86_64.rpm

rpm -ivh mysql-community-client-5.7.30-1.el7.x86_64.rpm

rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm

启动mysql服务

service mysqld.service start

查看mysql的初始密码

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

然后登陆进去

mysql -uroot -p

会提示需要修改密码

ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement

然后修改密码

set password=password('这里输入你想改的密码');

这里密码复杂度要求比较高，需要大小写，数字和字符的组合