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Full Discussion: can I use tomcat server for my chatting application?
Special Forums IP Networking can I use tomcat server for my chatting application? Post 302280164 by cbkihong on Monday 26th of January 2009 08:16:56 AM
Old 01-26-2009
It depends on how you want users to chat. Implementing a (1) 100% Web-based chatroom (no applet), or (2) users use applet from a Web page to chat? Or (3) users have dedicated clients (e.g. swing GUI) for chat?

I hope this is not college assignment. We don't allow posting these kind of questions here. But I will not post any code anyway as they are not something you can do with just a few lines of code and you should try to explore on your own.

(3) The GUI client can support any client-server socket protocol so this is the most traditional way to do this
(2) An applet can have limited networking capability so you can mostly use your own protocol as in case (3)
(1) Without applet, immediate refresh of message on Web page may be triggered by AJAX. You can use Tomcat (or even application server such as JBoss) to host an application server with state managed on it. However, to avoid excessive AJAX polling, you can use Jetty instead of Tomcat, that supports "continuations" so that it can push update to client instead of requiring polling from client side. Actually, the Jetty distribution has an example that exactly demonstrates how to create a chatroom using this method.
 

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LEARN ABOUT DEBIAN

mb-applet-launcher

mb-applet-launcher(1)					      General Commands Manual					     mb-applet-launcher(1)

NAME

       mb-applet-launcher - an application launcher panel applet

SYNOPSIS

       mb-applet-launcher [options] [action] image_file application

DESCRIPTION

       mb-applet-launcher  is  a panel applet which can be used to start a given application. The applet displays the PNG or XPM file given on the
       command line as an icon, and when the user clicks on the icon the application is started.

       Matchbox is a base environment for the X Window System running on non-desktop embedded platforms such as handhelds, set-top  boxes,  kiosks
       and anything else for which screen space, input mechanisms or system resources are limited.

OPTIONS

       -display display
	      X display to connect to

       --title title

       --no-animation
	      Disable any animations

       --start, -s
	      Start application immediately

       The default action is to iconize/uniconize the selected application. Other actions can be specified as command-line options:

       --kill, -k
	      Destroy the application

       --respawn, -l
	      Respawn multiple instances of the application

       --message, -m
	      Display output from the application as a message from the panel

       Alternatively, a valid .desktop file can be given:

       --desktop .desktop_file
	      Any  actions  given with this option will have no effect. Similar behaviour can be achieved by including a `SingleInstance=True' key
	      pair in the .desktop file.

AUTHOR

       mb-applet-launcher was written by Matthew Allum <mallum@o-hand.com>.

								    Jul 17 2004 					     mb-applet-launcher(1)
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