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  Tutorial: Java JSP and Servlets Examining Java Servlets in detail Tutorial

This article examines Java Servlets in detail and discusses HttpServlet, ServletConfig and ServletContext classes and issues like Servlet preloading and initialization parameters.

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Java JSP and Servlets Examining Java Servlets in detail Tutorial
This article builds on the first article ' Introduction to Servlets, Your first Java Servlet ' to examine Servlets in more detail. In this article we will learn what is Servlet life cycle and how Servlet Container and Servlets interact with each other. We have already learned about init() and destroy() methods in the last article and will learn more about them this time.

As I discussed in my last article, you will most often than not extending the HttpServlet class to develop your Servlets. Since this is going to be the main class you are going to use, it merits more discussion. We will list it's methods and examine them one by one in detail.

Not to forget two important classes which provide environmental support to your web application; ServletConfig and ServletContext . ServletConfig allows Servlets to obtain Servlet specific configuration information like initialization parameters and ServletContext allows application specific initialization parameters and also provides the ability for application components ( Servlets, JSP pages and Java beans ) to interact with each other. We will be examining them in detail.


 

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