MySQL 默认不允许远程以root进行登陆
进入mysql后
mysql>select host, user from user;
+--------------------+------+
| host | user |
+--------------------+------+
| 127.0.0.1 | root |
| ::1 | root |
| localhost | |
| localhost | root |
| vm\_144\_7\_centos | |
| vm\_144\_7\_centos | root |
+--------------------+------+
mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;
+--------------------+------+
| host | user |
+--------------------+------+
| % | root |
| 127.0.0.1 | root |
| ::1 | root |
| localhost | |
| vm\_144\_7\_centos | |
| vm\_144\_7\_centos | root |
+--------------------+------+