Centos7下安装MySQL5.7

下载源安装包

https://dev.mysql.com/downloads/repo/yum/

wget https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm[/code] 安装源

yum localinstall mysql57-community-release-el7-11.noarch.rpm

检查是否安装成功

yum repolist enabled | grep "mysql.*-community.*"


安装mysql
yum install mysql-community-server


启动mysql
service mysqld start


安装完后，mysql会默认生成一个密码
grep 'temporary password' /var/log/mysqld.log


修改密码
set password for 'root'@'localhost'=password('XXXX');


添加一个远程账号
grant all privileges on *.* to 'XXXX'@'%' identified by 'XXXX!' with  grant option;

flush privileges;

PS: 因为MySQL5.7默认安装了密码安全插件，默认密码检查策略要求密码必须包含：大小写字母、数字和特殊符号，并且长度不能少于8位。

修改默认编码
vim /etc/my.cnf

## [mysqld]下增加配置
[mysqld]

character_set_server=utf8
init_connect='SET NAMES utf8'


添加到开机启动项
systemctl enable mysqld
systemctl daemon-reload


重启mysql
service mysqld restart