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What is Generic Servlet and how it is different from Http
Servlet?
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Answer Posted / qim2010
Both these classes are abstract but the differences are
A GenericServlet has a service() method to handle
requests.
The HttpServlet extends GenericServlet and adds support
for HTTP
protocol based methods like doGet(), doPost(), doHead()
etc. All
client requests are handled through the service() method.
The service method dispatches the request to an appropriate
method like doGet(), doPost() etc to handle that request.
HttpServlet also has methods like doHead(), doPut(),
doOptions(),
doDelete(), and doTrace().
GenericServlet is Protocol independent. GenericServlet is
for servlets
that might not use HTTP (for example FTP service).
But HttpServlet is protocol dependent (i.e. HTTP).
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