Sunday, 24 April 2016

GenericServlet vs. HttpServlet


GenericServlet is superclass for HttpServlet.

Definition
GenericServlet implements Servlet, ServletConfig , Serializable
HttpServlet implements GenericServlet 

Differences
  • GenericServlet is protocol independent, whereas HttpServlet is protocol (HTTP) dependent.
  • In GenericServlets you cannot use Cookies or HttpSession, so session tracking not possible.

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