Urgent:JMS AND JSP

Question

I am working with an architecture which has JSP pages talking to JMS message bean and in turn message bean talks to EJB, which persists the user data.
I am quite new to JMS. My understanding is that JMS is used for Asynchronous operations. The requirement is a user can enter some data using form and the jsp page is supposed invoke a message bean which goes through other layers to store the info in the DB and should display a user An ID from the DB. How do I implement a mechanism to get message back from the Message Bean? I am using WebLogic Appserver 6.1. Please help

Answer 1

First of all, you need to realize that your client and users are not the same thing. All your web requests come thru the webserver and into a certain application space, and your message queue is associated with that application, not each web user. So you only have one client to the message queue.
Clearly you need to identify each web user in a unique way.
Generate a sequential and unique ID for each web user and keep this is a hashtable. Remove it from the hashtable once the web user has no longer used it after a certain timeout period. If you are using Servlets then use the Session ID which is sent and received in cookies and used to link the broken session of web browsing.
Send this unique ID with your message. And then link it back up to the original web user, once you have received a response from the queue.
It does'nt sound like you need message queues though, since you want to return an immediate response to your client. However, look into Session.CLIENT_ACKNOWLEDGE which provides a synchronous receiver. I doubt if it will solve your problem as this works on the session level and not the message level. But check it out.
I dunno, your question is vague, you need to provide more info.