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Methods in javax.servlet.http.HttpServlet

Servlets » on Jan 6, 2013 By Sivateja

As we discussed in the earlier articles, we should extend our servlet class with HttpServlet abstract class in order to get protocol dependent [http] services. When ever we make request to the servlet the following methods will be called automatically by the container.

  • Container first calls public Service() method
  • Public Service() method internally calls protected service method
  • Protected Service() method will internally calling doGet() or doPost() [ i mean doXxx() methods, its depends on the type of http method used by the client ]
  • If the client is not specifying the type of Http method then Http protocol by default consider GET method, so finally the client request is processed at doGet() method
  • In general when we are developing any servlets we must take a user defined class are it must extends HttpServlet and override either doGet() or doPost() or Both.

 

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