I have to write either jsp or servlet which reads a file and displays it on a page. The file gets updated and at the same time the page should also get updated.
uh, there is no simple way i can think of to have the file get displayed again when it was updated.
maybe some complex custom polling of the server from the browser, such as an ajax call on a timer.
also, but depending on what the file contents are this wouldn't even work. for example, if the file is a pdf file, it would be handled by the browser's view plugin, and the only way to make it refresh would be to have the user click a link or reload it manually.
Updating a html automatically
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