最近需要用到mysql,以前安装都是源码安装，步骤比较麻烦，刚好在官网上看到可以yum安装，立马实验一下，果然简单得很，当然前提是你服务器需要有网络啦，废话不多说，看步骤咯。
1. 下载rpm文件
wget http://repo.mysql.com//mysql57-community-release-el6-8.noarch.rpm
2. 设置yum资源
[root@localhost ~]# sudo rpm -Uvh mysql57-community-release-el6-8.noarch.rpm
3. 查看yum资源
[root@localhost ~]# yum repolist all | grep mysql
mysql-connectors-community MySQL Connectors Community enabled: 21
mysql-connectors-community-source MySQL Connectors Community - So disabled
mysql-tools-community MySQL Tools Community enabled: 37
mysql-tools-community-source MySQL Tools Community - Source disabled
mysql-tools-preview MySQL Tools Preview disabled
mysql-tools-preview-source MySQL Tools Preview - Source disabled
mysql55-community MySQL 5.5 Community Server disabled
mysql55-community-source MySQL 5.5 Community Server - So disabled
mysql56-community MySQL 5.6 Community Server disabled
mysql56-community-source MySQL 5.6 Community Server - So disabled
mysql57-community MySQL 5.7 Community Server enabled: 98
mysql57-community-source MySQL 5.7 Community Server - So disabled
4. 查看可用资源
[root@localhost ~]# yum repolist enabled | grep mysql
mysql-connectors-community MySQL Connectors Community 21
mysql-tools-community MySQL Tools Community 37
mysql57-community MySQL 5.7 Community Server 98
5. 安装mysql
[root@localhost ~]# sudo yum install mysql-community-server
6. 启动mysql服务
[root@localhost ~]# sudo service mysqld start
7. 查看mysql状态
[root@localhost ~]# sudo service mysqld status
8. 获取mysql初始密码
[root@localhost ~]# sudo grep ‘temporary password’ /var/log/mysqld.log
2016-07-09T10:57:07.014570Z 1 [Note] A temporary password is generated for root@localhost: 4-RXOyP,Bd=%
9. 登录mysql
[root@localhost ~]# mysql -uroot -p4-RXOyP,Bd=%
10. 修改root密码
ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘Root!1234’；
注意：mysql密码不要设太过简单，至少要有大小写字母和数字，否则会有如下提示 ：
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
至此，mysql安装完毕，这只是我自己系统环境安装成功，各个系统的环境不一样，安装可能会出现各种问题，只能各种百度啦！当然我是被百度一路坑过来的，希望可能帮到需要用到的人啦！