1、下載MySQL 安裝包：

• wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
• yum -y localinstall mysql57-community-release-el7-11.noarch.rpm

2、在線安裝MySQL

• yum -y install mysql-community-server

3、啟動mysql 服務

• systemctl start mysqld

4、設置開機啟動

• systemctl enable mysqld
• systemctl daemon-reload

5、修改root登錄密碼

• mysql安裝完成之后，會在/var/log/mysqld.log文件中給root生成了一個臨時的默認密碼。vim /var/log/mysqld.log

2020-07-21T06:45:28.566414Z 1 [Note] A temporary password is generated for root@localhost: TxUa>Lh>D7B!

• 記住初始密碼，修改root 密碼：mysql -u root -p
• ALTER USER 'root'@'localhost' IDENTIFIED BY '新密碼'
• #設置遠程登錄GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '新密碼' WITH GRANT OPTION;

6、退出

• exit

7、配置mysql默認編碼為utf-8

• vim /etc/my.cnf添加如下代碼

character_set_server=utf8
init_connect='SET NAMES utf8'

• systemctl restart mysqld重啟mysql
• 進入mysql使用show variables like '%character%';查看編碼格式！