在CentOS7上配置MySQL5.7需要以下幾個(gè)步驟：

1. 安裝MySQL5.7

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm 
yum -y install mysql57-community-release-el7-9.noarch.rpm 
yum -y install mysql-community-server

2. 啟動(dòng)MySQL服務(wù)

systemctl start mysqld.service

3. 查看MySQL服務(wù)狀態(tài)

systemctl status mysqld.service

4. 設(shè)置MySQL服務(wù)為開機(jī)自啟動(dòng)

systemctl enable mysqld.service

5. 修改MySQL初始密碼

grep 'temporary password' /var/log/mysqld.log 
mysql -uroot -p 
ALTER USER 'root'@'localhost' IDENTIFIED BY 'NewPassword';

6. 配置MySQL遠(yuǎn)程訪問

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

7. 配置MySQL外網(wǎng)訪問

vi /etc/selinux/config#SELINUX=enforcingSELINUX=disabledsystemctl restart mysqld

完成了以上步驟，就成功地在CentOS7上配置了MySQL5.7。您可以通過MySQL的客戶端工具連接這個(gè)數(shù)據(jù)庫服務(wù)器，并進(jìn)行相應(yīng)的操作。