Java Servlets
Overview In this tutorial, we will learn about JSP Architecture. JSP stands for Java Server Pages. JSP technology enables Java programmers to embed Java code into HTML pages. JSP files will be compiled into a servlet by the JSP engine. The compiled servlet is used by the JSP engine to serve the client’s requests. JSP […]
Overview Java ServletRequest Interface defines an object to provide client request information to the servlet. The servlet container creates a ServletRequest object and passes it as an argument to the servlet’s service() method. ServletRequest Interface The ServletRequest interface is defined in the javax.servlet package. public interface ServletRequest { … } The service() method is invoked […]
Overview Model View Controller( MVC ) is a web application development model. The main components of this development model are as follows: Model View Controller Controller The controller is the heart of the web application. The Controller maintains the entire flow of the web application. This component acts as the entry point for the client’s […]
Overview When we deploy the web application into a web server the container reads the deployment descriptor file. Each servlet created in the web application must be configured into the web.xml file. web.xml To configure the servlet in the web.xml, we should provide the following names: Original name Logical name url-pattern The original name is […]
Overview GenericServlet is a pre-defined abstract class provided by the Java Servlet API. GenericServlet defines protocol independent servlet. The class is defined in the javax.servlet package. GenericServlet Class GenericServlet class is an abstract class and the container does not create any object for this class. The class implements the following interfaces: Servlet ServletConfig The Servlet […]
Overview Let’s learn about Java Servlet Architecture in this tutorial. The Servlet Interface provides a total of five methods. Among the five methods, the three methods are the Lifecycle methods. These methods are discussed in Servlet Lifecycle. Servlet Architecture The web server receives the client request issued to the servlet. The server verifies the request […]