查一下你的MYSQL用户表里, 是否允许远程连接
1、授权
mysql>grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;
mysql>flush privileges;
2、修改/etc/mysql/my.conf找到bind-address = 127.0.0.1这一行改为bind-address = 0.0.0.0即可