dedecms后台验证码总提示错误的解决方法

  直接用下面的代码,覆盖dede中的login.php即可

  

复制代码 代码如下:

  <?

  require_once(dirname(__FILE__)."/../include/config_base.php");

  require_once(dirname(__FILE__)."/../include/inc_userlogin.php");

  if(empty($dopost)) $dopost="";

  //--------------------------------

  //登录检测

  //--------------------------------

  if($dopost=="login")

  {

  if(empty($validate)) $validate=="";

  else $validate = strtolower($validate);

  if( empty($_SESSION["s_validate"]) ) $svali = "";

  else $svali = $_SESSION["s_validate"];

  $cuserLogin = new userLogin();

  if(!empty($userid)&&!empty($pwd))

  {

  $res = $cuserLogin->checkUser($userid,$pwd);

  //成功登录

  if($res==1){

  $cuserLogin->keepUser();

  if(!empty($gotopage)){

  //header("location:$gotopage");

  ShowMsg("成功登录,正在转向管理管理主页!",$gotopage);

  exit();

  }

  else{

  ShowMsg("成功登录,正在转向管理管理主页!","index.php");

  //header("location:index.php");

  exit();

  }

  }

  else if($res==-1){

  ShowMsg("你的用户名不存在!","");

  }

  else{

  ShowMsg("你的密码错误!","");

  }

  }//<-密码不为空

  else{

  ShowMsg("用户和密码没填写完整!","");

  }

  //<-验证用户

  }

  ?>

  <html>

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">

  <title>管理系统</title>

  <link href="base.css" rel="stylesheet" type="text/css">

  </head>

  <body style='MARGIN: 0px' bgColor='#ffffff' leftMargin='0' topMargin='0' scroll='no'>

  <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0" bordercolor="#111111" style="BORDER-COLLAPSE: collapse">

  <tr>

  <td width="100%" height="64" background="img/indextitlebg.gif"><img src="img/indextitle.gif" width="250" height="64">

  </td>

  </tr>

  <tr>

  <td width="100%" height="20"> </td>

  </tr>

  <tr>

  <td width="100%" height="20" valign="bottom">

  <table width="540" border="0" cellspacing="0" cellpadding="0">

  <tr>

  <td align="right" style="FONT-SIZE: 2pt"> </td>

  </tr>

  <tr>

  <td><IMG height=14 src="img/book1.gif" width=20>  用户登录</td>

  </tr>

  </table></td>

  </tr>

  <tr>

  <td width="100%" height="1" background="img/sp_bg.gif"></td>

  </tr>

  <tr>

  <td width="100%" height="2"></td>

  </tr>

  <tr>

  <td width="100%" height="136" valign="top">

  <form name="form1" method="post" action="login.php">

  <input type="hidden" name="gotopage" value="<?if(!empty($gotopage)) echo $gotopage;?>">

  <input type="hidden" name="dopost" value="login">

  <table width="540" border="0" cellspacing="0" cellpadding="0">

  <tr>

  <td colspan="2" height="4"></td>

  </tr>

  <tr>

  <td width="156" height="30" align="center"> 用户名:</td>

  <td width="384"> <input type="text" name="userid" style="width:150;height:20">

  </td>

  </tr>

  <tr>

  <td height="30" align="center"> 密 码: </td>

  <td> <input type="password" name="pwd" style="width:150;height:20">

  </td>

  </tr>

  <tr>

  <td height="50" colspan="2" align="center"> <input type="button" name="sm1" value="登录" style="background-color:#BAE171;border:1px solid #666666" onClick="this.form.submit();">

  <input type="button" name="sm2" value="Power by DedeCms" onClick="window.open('http://www.glzy8.com');" style="background-color:#FFFFFF;border:1px solid #DDDDDD;color:#DDDDDD">

  </td>

  </tr>

  </table>

  </form></td>

  </tr>

  <tr>

  <td width="100%" height="2" valign="top"></td>

  </tr>

  </table>

  </body>

  </html>