Problem While Deploying Application in GlassFish

I have to deploy an application named "mrs-ws-server.war" in glassfish. I did it using both :

1) Package File to be uploaded to the server 2) Local package File or Directory

at the address : http://localhost:42328/common/index.jsf

It generates the following error :

Exception while loading the app : java.lang.Exception: java.lang.I开发者_C百科llegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection

What should be the solution for the same ?

There are a number of possible root causes. Is there more information in the server log that might help someone help you?