1.?下载 MySQL yum包
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? wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm
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2.安装MySQL源
rpm?-Uvh?mysql57-community-release-el7-10.noarch.rpm
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3.安装MySQL服务端,需要等待一些时间
yum?install?-y?mysql-community-server
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4.启动MySQL
systemctl?start?mysqld.service
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5.检查是否启动成功
systemctl?status?mysqld.service
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6.获取临时密码,MySQL5.7为root用户随机生成了一个密码
grep?‘temporary?password‘?/var/log/mysqld.log
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7.通过临时密码登录MySQL,进行修改密码操作
mysql?-uroot?-p
使用临时密码登录后,不能进行其他的操作,否则会报错,这时候我们进行修改密码操作
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8.因为MySQL的密码规则需要很复杂,我们一般自己设置的不会设置成这样,所以我们全局修改一下
mysql>?set?global?validate_password_policy=0; mysql>?set?global?validate_password_length=1;
这时候我们就可以自己设置想要的密码了
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ALTER?USER?‘root‘@‘localhost‘?IDENTIFIED?BY?‘yourpassword‘;
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9.授权其他机器远程登录
GRANT?ALL?PRIVILEGES?ON?*.*?TO?‘root‘@‘%‘?IDENTIFIED?BY?‘yourpassword‘?WITH?GRANT?OPTION; ? FLUSH?PRIVILEGES;
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10.开启开机自启动
先退出mysql命令行,然后输入以下命令
systemctl?enable?mysqld systemctl?daemon-reload
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11.设置MySQL的字符集为UTF-8,令其支持中文
vim?/etc/my.cnf
改成如下,然后保存
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#?For?advice?on?how?to?change?settings?please?see #?http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html ? [mysql] default-character-set=utf8 ? [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock default-storage-engine=INNODB character_set_server=utf8 ? symbolic-links=0 ? log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
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12.重启一下MySQL,令配置生效
service?mysqld?restart
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13.防火墙开放3306端口
firewall-cmd?--state firewall-cmd?--zone=public?--add-port=3306/tcp?--permanent firewall-cmd?--reload
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14.卸载MySQL仓库
一开始的时候我们安装的yum,每次yum操作都会更新一次,耗费时间,我们把他卸载掉
rpm?-qa?|?grep?mysql
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yum?-y?remove?mysql57-community-release-el7-10.noarch
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15.数据库的操作
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(1)查看mysql是否启动:service mysqld status
启动mysql:service mysqld start
停止mysql:service mysqld stop
重启mysql:service mysqld restart
(2)查看临时密码:grep password /var/log/mysqld.log
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