Configuring Servlets
You define servlets as a part of a Web application in several entries in the J2EE standard Web Application deployment descriptor, web.xml. The
web.xml file is located in the WEB-INF directory of your Web application. The first entry, under the root
servlet element in web.xml, defines a name for the servlet and specifies the compiled class that executes the servlet. (Or, instead of specifying a servlet class, you can specify a JSP.) The servlet element also contains definitions for initialization attributes and security roles for the servlet. The second entry in web.xml, under the
servlet-mapping element, defines the URL pattern that calls this servlet. Servlet Mapping
Servlet mapping controls the way you want to access your servlets
example of servlet mapping look like the image i attatched above
Servlet Initialization Attributes
You define initialization attributes for servlets in the Web application deployment descriptor, web.xml, in the init-param element of the servlet element, using param-name and param-value tags. The web.xml file is located in the WEB-INF directory of your Web application. For example i am attaching the image .this will clear the
doubt
i will come advanced feature of the Servlets in my second post
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