centos7 安装mysql

yum install mysql

yum install mysql-server

wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

rpm -ivh mysql-community-release-el7-5.noarch.rpm

chmod -R 777 /var/lib/mysql

systemctl restart mysqld.service

mysql

alter user 'root'@'localhost' identified by '123456';