centos7 yum 安装 mysql

1. 添加Mysql5.7仓库

sudo rpm -ivh https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

2. 确认Mysql仓库成功添加

sudo yum repolist all | grep mysql | grep enabled

如果展示像下面,则表示成功添加仓库:

mysql-connectors-community/x86_64 MySQL Connectors Community enabled: 51

mysql-tools-community/x86_64 MySQL Tools Community enabled: 63

mysql57-community/x86_64 MySQL 5.7 Community Server enabled: 267

3. 开始安装Mysql5.7

sudo yum -y install mysql-community-server

4. 修改配置文件

sudo systemctl start mysqld 

5.设置系统启动时自动启动

sudo systemctl enable mysqld

6.查看启动状态

sudo systemctl status mysqld

7. CentOS上的root默认密码可以在文件/var/log/mysqld.log找到，通过下面命令可以打印出来

cat /var/log/mysqld.log | grep -i 'temporary password'

8.执行下面命令进行安全设置，这个命令会进行设置root密码设置，移除匿名用户，禁止root用户远程连接等

mysql_secure_installation

9.设置数据库编码为utf8 打开配置文件

sudo vim /etc/my.cnf 

在[mysqld]，[client]，[mysql]节点下添加编码设置

[client]

default-character-set=utf8 

[mysql]

default-character-set=utf8

[mysqld]

character-set-server = utf8

init-connect='SET NAMES utf8' 

collation-server = utf8_unicode_ci 

10.重启Mysql即可

sudo systemctl restart mysqld 

11.配置root用户远程登陆

连接mysql

mysql -uroot -p

GRANT ALL PRIVILEGES ON  *.* TO "root"@"%" IDENTIFIED BY 'changeMe';