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Login bean help  RSS feed

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I have seen talk about using beans for logging into a website and here is what I have pieced together so far. Questions at the end!
public class UserLogin {
private boolean loggedIn = false;
public UserLogin() { }
public void setLogin(String user, String pass) {
// Validate login correct here and set to true or false
public boolean validUser() {
return loggedIn;
settup bean after login.html
// loaded from the login.jsp page via a form.
<%@ page import = "UserLogin" %>
<jsp:useBean id="c" scope="session" class="UserLogin">
<% c.setLogin(request.getParameter("username"),request.getParameter("password") ; %>

Code on everypage to verify they user has logged in
<jsp:useBean id="c" class="UserLogin" scope="session" />
<% if (!c.validUser()) response.sendRedirect("login.jsp"); %>

Is this code going to run, or is there something I am missing.
What do I need to added to the web.xml file for Tomcat 4 to run this.
Any guidance or examples or helpful websites would be great. Thanks!!!
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