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    如何最大限度地实现安全登录功能?

    作者:admin 时间:2021-08-29 19:04

    <
    if not IsEmpty(Session(
    "cust—id")) and Len(Session("cust—id"))>0 then

    ' 用户登录后指向主页.
     Response.Redirect("navigation/dashbrd.asp")

     ' 在此添入真正的主页URL.

    end if

    bLogin = False
      

    ' 设置标志.
    bError = False
    if IsEmpty(Request(
    "uid")) or Len(Request("uid")) = 0 or IsEmpty(Request("pwd")) or Len(Request("pwd")) = 0 then  

    ' 检查空字符.
      bLogin = True
    else

     

    ----------------------------------------------------------------------------------------------------------------
    ' 检验数据库保存密码表中是否有该用户.
    "select from customer WHERE cust—id=′ " request("uid") "′ and ′cust—pwd=′" request(″pwd″) ""
    ' 连接数据库,其中request(″uid″)request(″pwd″) 为本页html中表单中的用户名和密码的text.

      gbFound = False
    ----------------------------------------------------------------------------------------------------------------

      if not rsCust.BOF and not rsCust.EOF then
        gbFound = True
      end if

      if gbFound then
        Session("cust—id") = rsCust.Fields("cust—id")
        ' session变量中记录有用的信息.此项为数据库中用户名.
        Session("cust—pwd") = rsCust.Fields("cust—pwd")

    ' 此项为数据库中用户密码.
        Session("power") = rsCust.Fields("power")

            ' 此项为数据库中用户权限,可选.

        ' rsCust.ActiveConnection.Execute ("update customer set cust—login = ′ " Now "′ where cust_id = " Session("cust—id") "")

    ' 更新最后登录时间,可选.

        Response.Redirect("navigation/dashbrd.asp")

            ' 真正主页URL.
      Else
        ′UID and password not found
        bError = True bLogin = True
      end if

      rsCust.Close
       ' 关闭记录.
       mycn—login.Close
      set mycn—login=Nothing
     end if
    >

     

    ----------------------------------------------------------------------------------------------------------------

    ' 登录页面.

    <form name="login" action="default.asp" method="post" target="—top">

    ' html中加入FORM,并设为自发送页.action后面要接本页的URL,这样,即使用户登录错误,在本页即可获得提示,而无须再返回前一页登录.

    input name="uid" size="10"maxlength="10" style="HEIGHT: 21px; WIDTH: 101px">

    <input name="pwd"type="password" size="10" maxlength="10">

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    jsjbwy