Story:    perform user auto logon    user will not entering username and password every time he access xforumdescription:    show a checkbox on logon form : "auto logon"    if user checked "auto logon" and logon ok      save username to cookie    from then on, in AutoLogonFilter, check cookie first      if there is username cookie        save user info in cookie to session    to disable auto logon        logon again and do not check "auto logon" checkboxwork item:    ok.add a checkbox in logon page    ok.modify logonForm.java add boolean autoLogon    ok.modify logonAction.java        if user logon ok            if user check "auto logon", save username to cookie            otherwise, remove username from cookie    .add AutoLogonFilter.java        check session, if already logon, quit        otherwise, check cookie , if username in cookie is available            perform auto logon            save user info to session    .add AutoLogonFilter to web.xml