jsp - online users list using servletContextListener -


i new web programming here don't have idea listing online users in servlet using servlet context listener stuck implement this. has have answer please let me know example. in advance.

i give general path, because detailed answer code long.

you should :

  • keep hash of logged in users (sessionid : user) in servlet context attribute - sure initialize empty hash in servletcontextlistener (contextinitialized event)
  • add entries in module processes login
  • remove entries httpsessionlistener (sessiondestroyed event)

just glue in application , should ...


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