centos7安装mysql
1,mysql安装
yum install mysql
yum install mysql-server
yum install mysql-devel
安装mysql和mysql-devel都成功，但是安装mysql-server可能失败，如下：
2,官网下载安装mysql-server
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum install mysql-community-server
3,安装成功后重启mysql服务
service mysqld restart
4,设置密码
set password for 'root'@'localhost'=password('123456');
5,进入mysql数据库
mysql -hlocalhost -uroot -p /// mysql -u root -p /////mysql -u root
6，mysql配置文件为/etc/my.cnf最后加上编码配置
[mysql]
default-character-set =utf8
这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。
<charset name="utf8">
<family>Unicode</family>
<description>UTF-8 Unicode</description>
<alias>utf-8</alias>
<collation name="utf8_general_ci" id="33">
<flag>primary</flag>
<flag>compiled</flag>
</collation>
<collation name="utf8_bin" id="83">
<flag>binary</flag>
<flag>compiled</flag>
</collation>
</charset>