好记性不如烂笔头。

MySql开启允许远程连接

``` GRANT ALL PRIVILEGES ON . TO 'root name'@'%'IDENTIFIED BY 'root password' WITH GRANT OPTION; 

GRANT ALL PRIVILEGES ON . TO 'root'@'%'IDENTIFIED BY 'Aa123123!' WITH GRANT OPTION; 

alter user 'root'@'%' identified by 'root';

```