6. Write down the Program for testing the Servlet and study deployment descriptor.
Servlet Program (Testing the Servlet):
import java.io.*;
import javax.servlet.*;
import jakarta.servlet.http.*;
public class HelloServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html><body>");
out.println("<h2>Welcome to Servlet Programming!</h2>");
out.println("</body></html>");
}
}
----------------------------------------------------
Deployment Descriptor (web.xml):
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="3.0">
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
</web-app>