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Servlet: SendRedirect

web.xml
=======

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <servlet>
        <servlet-name>DemoServlet</servlet-name>
        <servlet-class>DemoServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>DemoServlet</servlet-name>
        <url-pattern>/DemoServlet</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>


index.html
===========


<html>
    <head>
        <title>get Request Demo </title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <form action="DemoServlet" method="get">
            <p>Please enter your name : <input type="text" name="suserName" ></p>
            <p>Please enter your address : <input type="text" name="saddress" ></p>
            <p>Please enter your Age : <input type="text" name="sage" ></p>
            <p><input type="submit" value="Send" ></p>
           
        </form>
    </body>
</html>


error.html
==========
<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        Don't have sufficient Age....
    </body>
</html>



SendRedirectEX.java
===================

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SendRedirectEX extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        String name = request.getParameter("suserName");
        String address = request.getParameter("saddress");
        String age = request.getParameter("sage");
        int ag = Integer.parseInt(age);
        out.println("Verifying Age::"+ag);
        out.println("<br /><br />");
        if(ag < 18){            
        response.sendRedirect("error.html");
        }
        else{
        out.println("<br /><br />");
        response.sendRedirect("https://www.google.co.in");                      
        }
        out.println("<br /><br />");
        out.println("Verified Age::");
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }
}

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