虚拟机centos安装mysql遇到 Couldn't resolve host 'mirror

网上查了一下说是DNS服务器错误。于是修改一下 /etc/resolv.conf
添加一个nameserver 8.8.8.8完成

安装MySql server:
1.下载安装 yum install -y mysql-server
2.服务开启 service mysqld start
3.服务随开机启动 chkconfig mysqld on
4.进入mysql mysql exit
5.安装连接 yum install -y mysql-connector-java