How to establish communication between webapplications on the j2ee

Hello,
we have two applications on the j2ee.
Is there any possibility to exchange informations that are saved in the session between those two applications?
Can you use the session id of one application to access the session data from the second app?
Thanks and best regards,
Jens

Hello Jens,
There are many ways to communicate between two J2EE applications. It depends on what you are trying to achieve. Johathan has mentioned already web service. Two other options recommended by sun are JCA (used mainly for synchronous invocations of EIS) and JMS (used for asynchronous invocations and loose coupling between your two applications).
Here is a link that perhaps can be useful to you :
http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/eis-tier/eis-tier4.html
Since both JMS and JCA are part of the J2EE specification, they are available and come with the WebAS server. There are many tutorials and examples on the net as well.
Best Regards
Peter

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How to establish communication between webapplications on the j2ee

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