Custom JSP tag. Lets you calculate a number of active
sessions. So you may provide for you application/portal some service like "How many
users are online?" for example. One tag getLive does the job. Tag increases an
application level counter if session is new and prints this value. Counter will be
decreased automatically when session is invalidated. Just add this tag to the starting
(or login etc.) page. For example:
<%@ taglib uri="taglib.tld" prefix="live" %> <live:getLive /> You may save this value in a page scope variable (type is String) and print/do not print it later: <live:getLive id="A"/>
Tags are: getLive increases counter (if session is new) and retrieves/prints its value. Parameters are: 1) id Optional parameter. Describes a name for the page scope variable with data. Without this parameter tag just prints a current value. for downloading: Library: livetag.jar Description: taglib.tld See also Coldtags suite - the largest collection of custom JSP tags.
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Also in Coldtags:
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