MySQL 5.7.x打开远程连接权限
MySQL 5.7.x默认不允许远程连接，可以打开MySQL 5.7 Command Line Client 输入如下代码解决远程连接问题：
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '<<password>>' WITH GRANT OPTION;
MySQL 5.7.x默认不允许远程连接，可以打开MySQL 5.7 Command Line Client 输入如下代码解决远程连接问题：
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '<<password>>' WITH GRANT OPTION;