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Subject: RE: Help needed with Hibernate persistent servlet
Date: Wed, 11 May 2005 09:02:23 +0100
Message-ID: <5684A7E6FB10504393A2806C1F4C021005AF8870@orion.qas.com>
Thread-Topic: Help needed with Hibernate persistent servlet
Thread-Index: AcVVjki2uCgq2UHOShm4+Rq1xrzApAAcSkkg
From: "Allistair Crossley" <Allistair.Crossley@QAS.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>

Hi,

Hibernate needs a bunch of other jar files too. There is a text file in the=
 H3 distrib indicating which are requisite and which are mandatory.

You do not menion whether this HibernateUtil you are using as a servlet has=
 an overridden init() method that creates the SessionFactory.

Finally, the way we set the Hibernate sub-system up here is to use a Contex=
tListener for our application which calls HibernateUtil.init which instance=
s the SessionFactory. Another way to go about Hibernate3 usage in web apps =
is to use the Inversion of Control part of Spring.

Cheers, Allistair.

> -----Original Message-----
> From: David Haynes [mailto:david.haynes2@sympatico.ca]
> Sent: 10 May 2005 19:30
> To: tomcat-user@jakarta.apache.org
> Subject: Help needed with Hibernate persistent servlet
>=20
>=20
> I feel that I am almost there, but can't quite get the last=20
> problem out=20
> of the way.
>=20
> I am using Tomcat 5.5.7, NetBeans 4.1rc2, and Hibernate 3.0.3.
>=20
> I have set up the web.xml for my project to start the=20
> HibernateUtil as a=20
> load-on-startup servlet and confirmed that the proper libraries (jar=20
> files) are in place under WEB-INF/lib. I know that the servlet is=20
> running since I put the declaration into the global web.xml=20
> and got back=20
> the duplicate service error.
>=20
> My problem is that I am getting NoClassDefFoundError. Looking at the=20
> java generated for my jsp, I see that the class not found is the one=20
> which references my persistent object. ( i.e. when I reference=20
> HibernateUtil.currentSession() )
>=20
> Do I need to do something else to make the persistent object=20
> visible to=20
> my jsp? The jsp does import my package containing=20
> HibernateUtil and the=20
> org.hibernate.* set as well.
>=20
> Googling seems to indicate that getting this to work is an often seen=20
> problem, but there not a lot of details about how to fix this. I have=20
> checked all the fixes I can find but nothing seems to be working.
>=20
> Thanks for any ideas/help.
> -david-
>=20
>=20
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>=20
>=20


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