安装mysql8.0

添加mysql源

rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
yum --enablerepo=mysql80-community install mysql-community-server。
systemctl start mysqld
systemctl status mysqld
grep "A temporary password" /var/log/mysqld.log  //mysql临时生成的密码
mysql -u root -p
	输入密码即可登陆
mysql> set global validate_password.policy=0;
mysql> set global validate_password.length=1;
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';    //设置登录密码
mysql> create user 'php'@'192.168.88.130' identified by 'vfds5325@$346%$#Q';     //创建php用户,密码复杂一点，否则链接失败
mysql> GRANT ALL ON *.* TO 'php'@'192.168.88.130';     //允许php登陆
mysql> flush privileges;