CentOS7下解决yum install mysql-server没有可用包

# wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm ;
-- http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm 正在解析主机 repo.mysql.com (repo.mysql.com)... 23.4.241.142
正在连接 repo.mysql.com (repo.mysql.com)|23.4.241.142|:80... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：6140 (6.0K) [application/x-redhat-package-manager]
正在保存至: “mysql-community-release-el7-5.noarch.rpm”
100%[======================================>] 6,140 --.-K/s 用时 0s
(467 MB/s) - 已保存 “mysql-community-release-el7-5.noarch.rpm” [6140/6140])
# ls
mysql-community-release-el7-5.noarch.rpm
# rpm -ivh mysql-community-release-el7-5.noarch.rpm
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-release-el7-5 ################################# [100%]
# ls -1 /etc/yum.repos.d/mysql-community*
/etc/yum.repos.d/mysql-community.repo
/etc/yum.repos.d/mysql-community-source.repo
# yum install mysql-server
[root@localhost ~]# wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm --2016-06-28 17:43:08-- http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm 正在解析主机 repo.mysql.com (repo.mysql.com)... 184.50.14.132
正在连接 repo.mysql.com (repo.mysql.com)|184.50.14.132|:80... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：6140 (6.0K) [application/x-redhat-package-manager]
正在保存至: “mysql-community-release-el7-5.noarch.rpm”
100%[=======================================================================>] 6,140 --.-K/s 用时 0.001s
2016-06-28 17:43:16 (7.45 MB/s) - 已保存 “mysql-community-release-el7-5.noarch.rpm” [6140/6140])
[root@localhost ~]# ls
aa bb mysql-community-release-el7-5.noarch.rpm test.txt 公共 视频 文档 音乐
anaconda-ks.cfg cc testcopy.txt txt 模板 图片 下载 桌面
[root@localhost ~]# chmod 777 mysql-community-release-el7-5.noarch.rpm
[root@localhost ~]# rpm -ivh mysql-community-release-el7-5.noarch.rpm
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-release-el7-5 ################################# [100%]
[root@localhost ~]# ls -1 /etc/yum.repos.d/mysql-community*
/etc/yum.repos.d/mysql-community.repo
/etc/yum.repos.d/mysql-community-source.repo
[root@localhost ~]# yum install mysql-server