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Servlet Tutorial
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  1. 1. Servlet Tutorial Introduction to Servlets: Java servlets are small, platform-independent Java programs that can be used to extend the functionality of a Web server in variety of ways. Small java programs compiled to bytecode that can be loaded dynamically and that extends the capabilities of the host. A client program , which could be a web browser or some other program that can make connections across the internet, accesses a web server and makes a request. This request is processed by the servlet engine that runs with the web server , which returns response to a servlet. the servlet in turn sends a response in HTTP form to the client. In functionality servlets lie somewhere between Common Gateway Interface (CGI) programs. What is Servlet? Servlet is a java based web technology to develop server side programs to make a web site interactive. Servlet ia an API. A collection of library interfaces and classes of two pavkages is nothing but servlet API. javax.servelt. javax.servlet.http A collection of library methods of above two packages is nothing but servlet API. Servlet is specification. Servlet is a J2EE technology.