Hibernate inside an applet

neuquino · **Joined:** Fri Nov 17, 2006 11:32 am **Posts:** 13

This perhaps is not a 100% hibernate question, but I'm sure that must be any user that had had the problem:

I have an applet that it's working correctly inside eclipse. But when I try to export it to the Web Server (Apache) I get this error:

Code:

NoDefClassFoundError: /org/hibernate/Session

. This is the directory structure:

Code:

/ # root folder of the application
|
-> index.html #where I invoke the applet by <applet> tag
->editor.jar #the application
      |
      ->editor # all the sources and .class
      ->lib  #all the libs, where is hibernate3.jar, where is org.hibernate.Session.class
      ->.classpath #classpath definition

Here is the classpath:

Code:

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
   <classpathentry kind="src" path="src"/>
   <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
   <classpathentry kind="lib" path="lib/ant-antlr-1.6.5.jar"/>
   <classpathentry kind="lib" path="lib/antlr-2.7.6.jar"/>
   <classpathentry kind="lib" path="lib/asm-attrs.jar"/>
   <classpathentry kind="lib" path="lib/asm.jar"/>
   <classpathentry kind="lib" path="lib/cglib-2.1.3.jar"/>
   <classpathentry kind="lib" path="lib/commons-collections-2.1.1.jar"/>
   <classpathentry kind="lib" path="lib/commons-logging-1.0.4.jar"/>
   <classpathentry kind="lib" path="lib/dom4j-1.6.1.jar"/>
   <classpathentry kind="lib" path="lib/ehcache-1.2.jar"/>
   <classpathentry kind="lib" path="lib/hibernate3.jar"/>
   <classpathentry kind="lib" path="lib/jaas.jar"/>
   <classpathentry kind="lib" path="lib/jaxen-1.1-beta-7.jar"/>
   <classpathentry kind="lib" path="lib/jdbc2_0-stdext.jar"/>
   <classpathentry kind="lib" path="lib/jta.jar"/>
   <classpathentry kind="lib" path="lib/log4j-1.2.11.jar"/>
   <classpathentry kind="lib" path="lib/xerces-2.6.2.jar"/>
   <classpathentry kind="lib" path="lib/xml-apis.jar"/>
   <classpathentry kind="lib" path="lib/mysql-connector-java-5.0.4-bin.jar"/>
   <classpathentry kind="lib" path="lib/images.jar"/>
   <classpathentry kind="output" path="bin"/>
</classpath>

Did anyone ever use Hibernate in an applet? any idea to find a solution? need more information? just ask for it.
thanks,
regards,
Neuquino

Kayaman · **Posted:** Fri Feb 16, 2007 3:35 am

Well, the error is due to Hibernate's libraries not being in the applet classpath. But that's not the main problem.

Using hibernate in an applet is a very poor idea, due to several reasons, such as security and userfriendliness, so I would seriously reconsider another approach.

neuquino · **Joined:** Fri Nov 17, 2006 11:32 am **Posts:** 13

Hibernate's libraries seems to be in the applet classpath ¿what is wrong in the classpath I post above? ¿Why in eclipse it works correctly?

¿What do you mean with security and userfriendliness reasons? Wich problems could this carry out?

Thanks
Neuquino