Methods in javax.servlet.http.HttpServlet

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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::. About the Author .::
		Sivateja Kandula - Java/J2EE Full Stack Developer Founder of Java4s - Get It Yourself, A popular Java/J2EE Programming Blog, Love Java and UI frameworks. You can sign-up for the Email Newsletter for your daily dose of Java tutorials.