1,停止mysql5.6 systemctl stop mysqld 2，先下載mysql5.7 wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm 3,安裝 mysql57-community-release-el7-11.noarch.rpm sudo rpm -Uvh mysql57-community-release-el7-11.noarch.rpm 4,查看可以被安裝的mysql列表 yum repolist all | grep mysql 5,更新mysql sudo yum update mysql-server -y 6，登錄時有可能報這樣的錯：ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘ (2)， ~~~ sudo chown -R openscanner:openscanner /var/lib/mysql ~~~ 然后，重啟服務： service mysqld restart 7,注意事項 原先的root賬號密碼無需更改，原先的數據庫會自動導入到mysql5.7中， MySQL內置了ngram全文檢索插件，用來支持中文分詞，并且對MyISAM和InnoDB引擎有效。