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session的问题!

xk2y 2008-12-08 09:57:04

帮别人做的登录页面...有些问题



<!--#include file="conn.asp" -->

<%

username=Trim(Request.Form("username"))

password=Trim(Request.Form("password"))

if username<>"" then

set rs=server.CreateObject("adodb.recordset")

sql="select psw from admin where uid='"&username&"'"

rs.open sql,conn,1,1

if rs.bof and rs.eof then

Response.Write("<script language='JavaScript'>alert('用户名错误!请重新登陆！')</script>")

else

if password<>rs("psw") then

Response.Write("<script language='JavaScript'>alert('密码错误!请重新登陆！')</script>")

else

session("uids")=username //这里明明赋值了...但是显示不了..

session("admin")="success"

response.Redirect("index.asp")

end if

end if

end if

set rs=nothing

set conn=nothing

%>



<BODY leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">

<%if session("admin")<>"success" then

%>

<table width="200" border="0">

  <tr>

    <td>

<FORM name="form1" method="post" id="f1"action="login.asp" onSubmit="return CheckForm()">

  用户名:

  <input name="username" type="text" id="un" size="10" maxlength="20"  style="border:0;border-bottom:1 solid black;background:;width=100px;"/>

  <br>



  

  密　码:

  <input name="password" type="password" id="pw" size="10" maxlength="20" style="border:0;border-bottom:1 solid black;background:;width=100px;"/>





</td>

  

  </tr>

  <tr>

    <td>

	<div align="right"><input type="submit" name="post" value="提交"/>

<input type="button" name="regu" value="注册"/>

</div></td>

  </tr>

  </form>

</table>

<%else

response.Write("欢迎你:" & session("uids"))//这里显示,session("admin")有值..但这个就没!

%>

<table width="200" border="0">

<FORM name="form2" method="post" id="f2"action="logout.asp">

<div align="right">

<input type="submit" name="post" value="注销"/>

</div>

</FORM>

</table>

<%end if%>

<SCRIPT language="JavaScript">

function CheckForm()

{

    if (document.f1.un.value.length == 0)

        {

		alert("请输入用户名.");

		document.f1.un.focus();

		return false;

	    }



    if (document.f1.pw.value.length == 0)

        {

		alert("请输入密码.");

		document.f1.pw.focus();

		return false;

	    }

    return true;

}

</SCRIPT>

[

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14 条回复

切换为时间正序

当前发帖距今超过3年，不再开放新的回复

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xk2y 2008-12-15

OK,搞掂!结帖~

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Edidu 2008-12-13

我帮你把代码修改了一下，请参考



<% 

if isempty(Request.Form("username")) then

    username = ""

else

    username=Trim(Request.Form("username"))

end if



if isempty(Request.Form("password")) then

    password = ""

else

    username=Trim(Request.Form("password"))

end if



if username <>"" then 

    set rs=server.CreateObject("adodb.recordset") 

    sql="select psw from admin where uid='"&username&"'" 

    rs.open sql,conn,1,1 

    if rs.bof and rs.eof then 

        Response.Write(" <script language='JavaScript'>alert('用户名错误!请重新登陆！') </script>") 

    else 

        if password <>rs("psw") then 

            Response.Write(" <script language='JavaScript'>alert('密码错误!请重新登陆！') </script>") 

        else 

            session("uids")=username //这里明明赋值了...但是显示不了.. 

            session("admin")="success" 

            response.Redirect("index.asp") 

        end if 

    end if 

end if 

set rs=nothing 

set conn=nothing 

%>

如果这段代码执行后，页面没有弹出对话框而是直接转入index.asp。那么session("uids")就应该拥有userename的值。
如果弹出对话框，发生错误，就不能保存。

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草原可可 2008-12-12

有时候可能是网页的缓存
你在打开新页的时候先强制刷新下

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xk2y 2008-12-12

8L用IIS?

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yunxiang2005 2008-12-10

学习!

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-晴天 2008-12-10

我用我的服务器试过了,你的程序并没有错,完全能正确显示.
你把response.Redirect("index.asp") 这句注释掉,再运行,就能看到了.
你这里当验证成功后,就跳转到另一个页面上去了.

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-晴天 2008-12-10

先试试这样:

<% 

username=Trim(Request.Form("username"))

password=Trim(Request.Form("password"))

if username<>"" then

session("uids")=username    //这里明明赋值了...但是显示不了.. 

session("admin")="success" 

end if

%> 



<BODY leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"> 

<%if session("admin") <>"success" then 

%> 

<table width="200" border="0"> 

  <tr> 

    <td> 

<FORM name="form1" method="post" id="f1"action="login.asp" onSubmit="return CheckForm()"> 

  用户名: 

  <input name="username" type="text" id="un" size="10" maxlength="20"  style="border:0;border-bottom:1 solid black;background:;width=100px;"/> 

  <br> 



  

  密　码: 

  <input name="password" type="password" id="pw" size="10" maxlength="20" style="border:0;border-bottom:1 solid black;background:;width=100px;"/> 





</td> 

  

  </tr> 

  <tr> 

    <td> 

    <div align="right"> <input type="submit" name="post" value="提交"/> 

<input type="button" name="regu" value="注册"/> 

</div> </td> 

  </tr> 

  </form> 

</table> 

<%else 

response.Write("欢迎你:" & session("uids"))//这里显示,如果是session("admin")就有值..但这个就没! 

%> 

<table width="200" border="0"> 

<FORM name="form2" method="post" id="f2"action="logout.asp"> 

<div align="right"> 

<input type="submit" name="post" value="注销"/> 

</div> 

</FORM> 

</table> 

<%end if%> 

<SCRIPT language="JavaScript"> 

function CheckForm() 

{ 

    if (document.f1.un.value.length == 0) 

        { 

        alert("请输入用户名."); 

        document.f1.un.focus(); 

        return false; 

        } 



    if (document.f1.pw.value.length == 0) 

        { 

        alert("请输入密码."); 

        document.f1.pw.focus(); 

        return false; 

        } 

    return true; 

} 

</SCRIPT>

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xk2y 2008-12-10

LS 那样写一样的...
_________________
session("uids")怎么会没值呢?

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-晴天 2008-12-10

response.Write("欢迎你:" & session("uids"))

改成:

response.Write "欢迎你:" & session("uids")

你加了括号,变成名称表达式了.

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xk2y 2008-12-10

没人啊?

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xk2y 2008-12-09

<%
username=Trim(Request.Form("username"))
password=Trim(Request.Form("password"))
if username<>"" then
set rs=server.CreateObject("adodb.recordset")
sql="select psw from admin where uid='"&username&"'"
rs.open sql,conn,1,1
if rs.bof and rs.eof then
Response.Write("<script language='JavaScript'>alert('用户名错误!请重新登陆！')</script>")
else
if password<>rs("psw") then
Response.Write("<script language='JavaScript'>alert('密码错误!请重新登陆！')</script>")
else
session("uids")=username //这里明明赋值了...但是显示不了..
session("admin")="success"
response.Redirect("index.asp")
end if
end if
end if
set rs=nothing
set conn=nothing
%>

<BODY leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<%if session("admin")<>"success" then
%>
<table width="200" border="0">
<tr>
<td>
<FORM name="form1" method="post" id="f1"action="login.asp" onSubmit="return CheckForm()">
用户名:
<input name="username" type="text" id="un" size="10" maxlength="20" style="border:0;border-bottom:1 solid black;background:;width=100px;"/>
<br>

密　码:
<input name="password" type="password" id="pw" size="10" maxlength="20" style="border:0;border-bottom:1 solid black;background:;width=100px;"/>

</td>

</tr>
<tr>
<td>
<div align="right"><input type="submit" name="post" value="提交"/>
<input type="button" name="regu" value="注册"/>
</div></td>
</tr>
</form>
</table>
<%else
response.Write("欢迎你:" & session("uids"))//这里显示,如果是session("admin")就有值..但这个就没!
%>
<table width="200" border="0">
<FORM name="form2" method="post" id="f2"action="logout.asp">
<div align="right">
<input type="submit" name="post" value="注销"/>
</div>
</FORM>
</table>
<%end if%>
<SCRIPT language="JavaScript">
function CheckForm()
{
if (document.f1.un.value.length == 0)
{
alert("请输入用户名.");
document.f1.un.focus();
return false;
}

if (document.f1.pw.value.length == 0)
{
alert("请输入密码.");
document.f1.pw.focus();
return false;
}
return true;
}
</SCRIPT>

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