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Remember Me Login Application In JSF
Posted on: March 18, 2008 By Deepak Kumar
This section gives you an application which facilitates for login. But basically this is a different type of login application in which, you will get a two text box labeled with the label like "User Name: " and another is the "Password: " these labels are
<jsp:forward page="login.jsf" />

Here is the code of the login.jsp:

<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>

<f:view>
<html>
	<head>
		<title>Remember Me Login Application</title>
	</head>

	<body>
	<div align="left">
	<h:form id="frm" onsubmit="return initialize();">
	<table height="250" border="1" cellpadding="3" cellspacing="1">
			<tr>
				<td valign="top"><br/><br/>
					<table>
						<tr>
		<td><h:outputText value="User Name: "
 /></td>
		<td><h:inputText id="username" value
="#{RememberMeLogin.username}" /></td>
						</tr>
						<tr>
				<td><h:outputText value="Password: "
 /></td>
				<td><h:inputSecret id="password" 
value="#{RememberMeLogin.password}" 
required="true" redisplay="true" /></td>
						</tr>
						<tr>
						<td>&nbsp;</td>
				<td><h:commandButton value="Login"
 action="#{RememberMeLogin.CheckLogin}" onclick="initialize" /></td>
						</tr>
						<tr>
						<td>&nbsp;</td>
				<td><h:selectBooleanCheckbox id=
"remember" value="#{RememberMeLogin.remember}" 
onclick="return check(this);" />
				<h:outputLabel for="remember">Remember
 Me</h:outputLabel></td>
						</tr>
					</table>
				</td>
			</tr>
		</table>
	</h:form>
	</div>
	</body>
</html>
</f:view>

Here is the code of the RememberMeLogin.java file which is the bean class:

package roseindia;

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.faces.context.*;

public class RememberMeLogin{
  boolean remember;
  String username;
  String password;
  String remember1 = "hi";

  public RememberMeLogin(){
  checkCookie();
  }

  public void setUsername(String username){
  this.username = username;
  }

  public String getUsername(){
  if(remember == false){
  username = "";
  return username;
  }
  else{
  return username;
  }
  }

  public void setPassword(String password){
  this.password = password;
  }

  public String getPassword(){
  if(remember == false){
  password = "";
  return password;
  }
  else{
  return password;
  }
  }

  public void setRemember(boolean remember){
  this.remember = remember;
  }

  public boolean getRemember(){
  return remember;
  }

  public String CheckLogin(){
  if(username.equals("chandan") && password.equals("chandan")){
  FacesContext facesContext = FacesContext.getCurrentInstance();

  // Save the userid and password in a cookie
  Cookie btuser = new Cookie("btuser", username);
  Cookie btpasswd = new Cookie("btpasswd",password);
  if(remember == false){
  remember1 = "false";
  }
  else{
  remember1 = "true";
  }
  Cookie btremember = new Cookie("btremember",remember1);
  btuser.setMaxAge(3600);
  btpasswd.setMaxAge(3600);
  
  ((HttpServletResponse)facesContext.getExternalContext().getResponse()).
addCookie(btuser);
  ((HttpServletResponse)facesContext.getExternalContext().getResponse()).
addCookie(btpasswd);
  ((HttpServletResponse)facesContext.getExternalContext().getResponse()).
addCookie(btremember);

  return "success";
  }
  else{
  return "failure";
  }
  }

  public void checkCookie(){
  FacesContext facesContext = FacesContext.getCurrentInstance();
  String cookieName = null;
  Cookie cookie[] = ((HttpServletRequest)facesContext.getExternalContext().
getRequest())
.getCookies();
  if(cookie != null && cookie.length > 0){
  for(int i = 0; i<cookie.length; i++){
  cookieName = cookie[i].getName();
  if(cookieName.equals("btuser")){
  username = cookie[i].getValue();
  }
  else if(cookieName.equals("btpasswd")){
  password = cookie[i].getValue();
  }
  else if(cookieName.equals("btremember")){
  remember1 = cookie[i].getValue();
  if(remember1.equals("false")){
  remember = false;
  }
  else if(remember1.equals("true")){
  remember = true;
  }
  }
  }
  }
  else
  System.out.println("Cannot find any cookie");
  }
}

Here is the code of the web.xml file:

<?xml version="1.0"?> 
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD 
Web Application 2.3//
EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>
    <context-param>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>server</param-value>
    </context-param>    

    <!-- Faces Servlet -->
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup> 1 </load-on-startup>
    </servlet>

	<!-- Faces Servlet Mapping -->
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
</web-app>

Here is the code of the faces-config.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD 
JavaServer Faces 
Config 1.0//EN" "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">

<faces-config>
	<managed-bean>
		<managed-bean-name>RememberMeLogin</managed-bean-name>
		<managed-bean-class>roseindia.RememberMeLogin
</managed-bean-
class>
		<managed-bean-scope>request</managed-bean-scope>
	</managed-bean>

	<navigation-rule>
		<from-view-id>/login.jsp</from-view-id>
		<navigation-case>
			<from-action>#{RememberMeLogin.CheckLogin}
</from-action>
			<from-outcome>success</from-outcome>
			<to-view-id>/success.jsp</to-view-id>
		</navigation-case>
		<navigation-case>
			<from-action>#{RememberMeLogin.CheckLogin}
</from-action>
			<from-outcome>failure</from-outcome>
			<to-view-id>/failure.jsp</to-view-id>
		</navigation-case>
	</navigation-rule>
</faces-config>

Here is the output for the whole example:

Download this complete source code of the example.

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Comments
Emmanuel
December 5, 2011
Security of your tip
Thanks for the tip, but storing login/password in a cookie isn't very secure, is it?
 

 

 

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