Java Web Development Pdf | ULTIMATE – 2025 |

Configure the servlet in the web.xml file:

To illustrate the basics of Java web development, let’s build a simple web application that displays a “Hello, World!” message. java web development pdf

Create a new Java class that extends the HttpServlet class: Configure the servlet in the web

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xml Copy Code Copied < servlet > < servlet-name > HelloWorldServlet </ servlet-name > < servlet-class > HelloWorldServlet </ servlet-class > </ servlet > < servlet-mapping > < servlet-name > HelloWorldServlet </ servlet-name > < url-pattern > /hello </ url-pattern > </ servlet-mapping >

Deploy the application to a servlet container, such as Apache Tomcat, and run it.

java Copy Code Copied import javax . servlet . ; import java . io . ; public class HelloWorldServlet extends HttpServlet { public void doGet ( HttpServletRequest request , HttpServletResponse response ) throws ServletException , IOException { response . setContentType ( “text/html” ) ; PrintWriter out = response . getWriter ( ) ; ” ) ; } } Step 3: Configure the servlet