sqlserver 報錯 18456

ssh2做的，在自己的機器上測試好好的，拿給老師就報錯。struts報錯如下：

A ResourcePool could not acquire a resource from its primary factory or source.
Connections could not be acquired from the underlying database!
Hibernate operation: Cannot open connection; uncategorized SQLException for SQL [???]; SQL state [null]; error code [0]; Connections could not be acquired from the underlying database!; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!

後嘗試用自己建立的登入名稱登陸management studio，居然報錯18456。。。

找了N久（主要是一份不是該問題的解決答案被N多網站copy。。。）終於找到了~

然後就好了~