centos安裝mysql5.7配置

本身先下載mysql57-community-release-el7-9.noarch.rpm

（下載地址：https://pan.baidu.com/s/1chB4su），而後進行安裝，

yum install mysql57-community-release-el7-9.noarch.rpm

安裝好

yum install mysql-community-server

systemctl start mysqld

systemctl enable mysqld
systemctl daemon-reload

第一次啓動mysql後mysql會自動生成初始密碼，查看初始密碼方式以下

grep 'temporary password' /var/log/mysqld.log

登陸mysql

mysql -uroot -p

進入mysql客戶端後首先是要初始化密碼

ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
GRANT ALL PRIVILEGES ON *.* TO 'zhengwei'@'%' IDENTIFIED BY 'Zheng0917!' WITH GRANT OPTION;

配置默認編碼爲utf8
修改/etc/my.cnf配置文件，在[mysqld]下添加編碼配置

[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'

輸入如下命令重啓mysql

systemctl restart mysqld