1. yum 安裝 mysql5.7 yum 源

yum localinstall? mysql57-community-release-el6-8.noarch.rpm

2. 查看是否成功安裝MySQL Yum Repository

yum repolist enabled|grep ""mysql.*-community.*

3. 安裝mysql

yum install mysql-community-server

4.開啟數據庫服務

service mysqld start

不需要密碼登錄之后

update mysql.user set authentication_string=PASSWORD('123123') where user='root';

�flush privileges;

5. 授權用戶

報錯之后 通過 通過下面的命令修改密碼

ALTER USER USER() IDENTIFIED BY '123123';

修改之后 再進行授權

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123123' WITH GRANT OPTION;

如果 不行 授權就用

use mysql;

update user set host='%' where user = 'root' and host!='localhost' ;

然后就 ok 了