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Saturday, September 21, 2019

Spring_MVC_1.1_Login (Using annotations)

-------LoginController

package com.amit.controllers;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class LoginController implements Controller
{
@Override
public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse res) throws Exception
{
String uname = req.getParameter("uname");
String upwd = req. getParameter("upwd");
ModelAndView mav = null;
if(uname.equals("amit") && upwd.equals("amit"))
{
mav = new ModelAndView("success");
}else {
mav = new ModelAndView("failure");
}


return mav;
}

}
==================================================================
---- LoginPageController


package com.amit.controllers;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class LoginPageController implements Controller
{

@Override
public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse res) throws Exception
{

return new ModelAndView("loginForm");
}

}


=====================================================================
-----ds-servlet.xml


<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">
<bean name="/loginPage" class="com.amit.controllers.LoginPageController"/>
<bean name="/login"  class="com.amit.controllers.LoginController"/>
<bean name = "handlerMapping" class = "org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
    <bean name = "viewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/"/>
     <property name="suffix" value = ".jsp"/>
        </bean>
</beans>        

===================================================================
------failure.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h2>Amit Software Solutions</h2>
<h3>User Login Page</h3>
<br><br>
<h1>Login Failure</h1>
</body>
</html>


=====================================================================
-------loginform.jsp


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<center>
<h2>Amit Software Solutions</h2>
<h3>User Login Page</h3>
<form method="post" action="login">
<table>
<tr>
<td>User Name</td>
<td><input type="text" name ="uname"/></td>
</tr>
<tr>
<td>User Password</td>
<td><input type="password" name ="upwd"/></td>
</tr>
<tr>
<td><input type="submit" value="Login"/></td>
</tr>
</table>

</form>
</center>
</body>
</html>

========================================================================

---------success.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h2>Amit Software Solutions</h2>
<h3>User Login Page</h3>
<br><br>
<h1>Login Success</h1>
</body>
</html>

========================================================================
-------- web.xml



<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
  <display-name>mvc1.3_Login_xml</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
<servlet-name>ds</servlet-name> 
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ds</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping> 
  
</web-app>



=======================================================================
-------index.jsp



<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<jsp:forward page="loginPage"/>
</body>
</html>

========================================================================




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