下载软件包：
mysql-5.7.14-1.el7.x86_64.rpm-bundle.tar
解压后为下列rpm包：
mysql-community-embedded-compat-5.7.14-1.el7.x86_64.rpm
mysql-community-server-5.7.14-1.el7.x86_64.rpm
mysql-community-client-5.7.14-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.14-1.el7.x86_64.rpm
mysql-community-server-minimal-5.7.14-1.el7.x86_64.rpm
mysql-community-common-5.7.14-1.el7.x86_64.rpm
mysql-community-libs-5.7.14-1.el7.x86_64.rpm
mysql-community-test-5.7.14-1.el7.x86_64.rpm
mysql-community-devel-5.7.14-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.14-1.el7.x86_64.rpm
mysql-community-embedded-5.7.14-1.el7.x86_64.rpm
mysql-community-minimal-debuginfo-5.7.14-1.el7.x86_64.rpm
实际上我们并不需要安装所有的软件包，只安装client和server即可，但是貌似不可能，还有很多依赖关系，安装如下：
首先，卸载系统自带的mriadb-libs软件包，5.6安装时会自动卸载，但5.7貌似不能，手动卸载
#rpm –e mariadb-libs --nodeps
其次，根据依赖提示安装rpm包：
#rpm –ivh mysql-community-common-5.7.14-1.el7.x86_64.rpm
#rpm –ivh mysql-community-libs-5.7.14-1.el7.x86_64.rpm
#rpm –ivh mysql-community-client-5.7.14-1.el7.x86_64.rpm
# rpm –ivh mysql-community-server-5.7.14-1.el7.x86_64.rpm
#rpm –ivh mysql-community-devel-5.7.14-1.el7.x86_64.rpm
