環境 centos 7 mysql 5.7yum安裝1.獲取rpm包yum安裝tomcat。wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm2.安裝mysql源yum localinstall mysql57-community-release-el7-8.noarch.rpm3.安裝mysqlyum安裝MySQL、yum -y install mysql-community