JSP (Java Server Pages) Tutorial For Beginners To Advanced: A Step-by-Step Guide by Prasad Ravi

Author:Prasad, Ravi
Language: eng
Format: epub
Published: 2024-10-05T00:00:00+00:00

Hidden Form Fields

A web server can send a hidden HTML form field along with a unique session ID as follows −

<input type = "hidden" name = "sessionid" value = "12345">

This entry means that, when the form is submitted, the specified name and value are automatically included in the GET or the POST data. Each time the web browser sends the request back, the session_id value can be used to keep the track of different web browsers.

This can be an effective way of keeping track of the session but clicking on a regular (<A HREF...>) hypertext link does not result in a form submission, so hidden form fields also cannot support general session tracking.

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