官方教程:https://dev.mysql.com/doc/mysql-yum-repo-quick-guide/en/
#下载rpm并安装上
wget https://dev.mysql.com/get/mysql80-community-release-el7-2.noarch.rpm
rpm -Uvh mysql80-community-release-el7-2.noarch.rpm
#检查是否已经有了mysql的
yum repolist all | grep mysql
#修改要安装的版本
vi /etc/yum.repos.d/mysql-community.repo
#5.7的enabled改为1
#8.0的enabled改为0
yum repolist all | grep mysql #再检查下激活的状态
#安装
yum install mysql-community-server
#安装好后
service mysqld start
service mysqld status #检查是否成功启动了
#取临时密码
grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p #用临时密码登陆
# ** 注意修改root密码 **
ALTER USER 'root'@'localhost' IDENTIFIED BY '*********';
ps:关于密码复杂度的问题参考:
https://blog.csdn.net/tr1912/article/details/81299360
pps:忘记密码的话先停掉mysql服务
在用这个方式启动:mysqld --skip-grant-tables -u root
就可以在另一个terminal登陆mysql修改root密码了,改完了再启动mysql服务
ppps:新建用户 grant all privileges on mq.* to test@localhost identified by '1234';