rpm -ivh mysql-community-server-5.7.16-1.el7.x86_64.rpm
warning: 05_mysql-community-server-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
net-tools is needed by mysql-community-server-5.7.16-1.el7.x86_64
1.清空源缓存
yum clean all
yum makecache
2.安装net-tools
yum -y install net-tools
3.再次安装， 即可
rpm -ivh mysql-community-server-5.7.16-1.el7.x86_64.rpm
