[root@localhost ~]# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
[root@localhost ~]# yum -y install mysql-community-release-el7-5.noarch.rpm
[root@localhost ~]# yum -y install mysql-community-server
[root@localhost ~]# systemctl start  mysqld.service //启动mysql
[root@localhost ~]# mysql -uroot -p
[root@localhost ~]# SET PASSWORD = PASSWORD('a998998');//修改密码
[root@localhost ~]# grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option; //远程访问
[root@localhost ~]#  vim /etc/my.cnf #添加 [mysqld] character_set_server=utf8 init_connect='SET NAMES utf8
[root@localhost ~]# service mysqld restart //重启mysql

接着可以用window 输入以下命令链接服务器mysql：
mysql -h ip -P 端口号 -u root -p