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Asked: 2026-06-09T16:37:11+00:00

I am working on a homework project that should implement a board game between

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I am working on a homework project that should implement a board game between 2 clients over an HttpServlet. I have couple of questions:

1) I read that HttpServlets must be stateless, however, for the sake of the game, I have to keep a lot of state(whose turn it is, the state of the board, etc). Do I have to keep this in the clients? Does the HttpServlet indeed have to be stateless, i.e. have no fields that track state?

2) I know that the clients will talk to the servlet via the doGet/doPost methods, but how can the servlet talk to the clients(for example, if player 1 just made a move and sent it to the servlet, the servlet has to tell client 2 what the move was).

Thank you

Also, if you can point me to a useful, simple example of a similar code online, I would be very grateful

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1 Answer

  1. Editorial Team

    1. HTTP protocol is stateless and hence the HttpServlet. You can maintain session state on server side using servlet api. Read Session Management tutorial.

    2. There are several techniques like HTML auto-refresh, technologies like Comet and HTML 5’s WebSocket

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