Servlet Mapping example in deployment descriptor
This java server page (jsp) example shows how to redirect from a page another page in jsp, the request from jsp page will pass through a servlet and from the servlet to second . the following java code will decide which page the request should be directed : page.response.sendRedirect("secondPage.jsp");
web.xml file
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Artificial intelligence</display-name>
<welcome-file-list>
<welcome-file>newPage.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description>An example for servlet mapping in jsp servlet</description>
<display-name>Beyonce superbowl</display-name>
<servlet-name>Beyonce</servlet-name>
<servlet-class>com.NeuralNetwork.servlet.EvasiOn</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Beyonce</servlet-name>
<url-pattern>/NeuralNetwork.jsp</url-pattern>
</servlet-mapping>
</web-app>
first page
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title> groundHog see his shadow</title>
</head>
<body>
<H1> new page !!! Indexing Terms </H1>
<a href="NeuralNetwork.jsp">click here</a>
</body>
</html>
second page
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Did the groundHog see his shadow</title>
</head>
<body>
<h1> This is second page !!! </h1>
</body>
</html>
servlet
package com.NeuralNetwork.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class EvasiOn
* @author fuzzyLogic
*/
public class EvasiOn extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public EvasiOn() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println(" inside Test Servlet");
response.sendRedirect("secondPage.jsp");
}
}
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