Is it possible to use a JSP with an app running in background?

[djeffer_ch2]

Hi everybody,

I would like to known if I can (and how to if possible) use a web browser to retrieve some data from an application running in background. In other words, I have to write a java application which is doing something, and interconnected with a web browser from which clients obtain some "real time" data of the app. Is it possible? If so, where I can find the information?
Thanks for your time.

DJ

[travishein]

I would think this might be partly javascript (ran in the browser) and partly custom servlet.

For example, create a JSP page that renders the page that displays the stuff you want to show. And a Javascript function is invoked in the background on a scheduled task to invoke an AJAX style asychronous request to your server application, where the URL it invokes could be a servlet within your application that generates XML or JSON data, which the JavaScript response handler in your web page receives and renders DHTML style updates to the page viewed in the browser.

[Eranga]

If you want to handle the process without knowing the client (by avoiding page postback and so on), yes AJAX + JS request model is more suitable. But yet it's hard to control sometime if you've not implement properly from the begining. GET/POST request make lots of issues if you are not properly use them.

[djeffer_ch2]

Thanks for your reply. I will try in that way. Any good documentation to read?

[Eranga]

If you want to learn more about AJAX/JS click on w3c official website. You can find all related stuff in details with examples.