无法读取Cookie值 [英] Unable to read cookie value

问题描述

无法从cookie中读取cookie值.我已经在脚本方面从javascript设置了cookie值，并尝试从编码部分读取cookie值，即. default.aspx.vb.我在下面显示了我的JavaScript页面:

am unable to read a cookie value from the cookies. i have set cookie value from javascript in scripting side and try to read cookie value from coding part ie. default.aspx.vb. i have shown my javascript page below:

function setcookie()
  {
  var today=new Date();
  var expire=new Date();
  var ndays;
  if(ndays==null || ndays==0)ndays=1;
  expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = "hostname"+"="+VIH_HostName+ ";expires="+expire.toGMTString();
 alert(VIH_HostName)
}

此函数从body标签中的onload调用.

这是我的vb代码，用于读取cookie值

this function called from onload in body tag.

here is my vb code to read cookie value

If Not Request.Cookies("hostname") Is Nothing Then
                   count = Request.Cookies("hostname").Value
                   Response.Write("cookie: " & count)
               End If

如果我读了cookie，我只会得到空字符串.任何人都可以帮助我解决此问题..

问候
Sasikumar

if i read the cookie i get only null string.. anyone help me to resolve this problem..

regards
Sasikumar

推荐答案

您的JavaScript错误:nDays而不是ndays且未定义变量VIH_HostName.
我更改了js代码.
试试这个:

Your javascript has errors: nDays instead of ndays and variable VIH_HostName is not defined.
I changed the js code.
Try this:

<script type="text/javascript">
        function setcookie() {
            var today = new Date();
            var expire = new Date();
            var ndays;
            if (ndays == null || ndays == 0) ndays = 1;
            expire.setTime(today.getTime() + 3600000 * 24 * ndays);
            document.cookie = "hostname=VIH_HostName;expires=" + expire.toGMTString();
        }</script>

然后像这样从服务器端获取Cookie

and get the cookie from server side like this

Response.Write(Request.Cookies["hostname"].Value);

它适用于我

It works for me

如果您使用JavaScript设置Cookie并通过VB.net读取它，则名称可能有问题.

您可以遍历请求对象的cookie集合，然后使用调试器逐步浏览-看看您是否完全识别出cookie.

there may be an issue with the name if you''re setting a cookie using javascript and reading it with VB.net.

you could loop through the cookies collection of the request object and step through it using the debugger - see if you recognise your cookie at all.

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