在C＃中获取上一页网址 [英] Getting previous page URL in C#

问题描述

我们有内联网（比如abc.com），以及内部网上的一个按钮来访问一个网站（比如xyz.com）。我必须提供访问xyz.com的权限，只要他们来自内部网。

内部网在html中，因为网站在C＃中。



我在内联网页面（网站链接所在的位置）编写了以下代码：

Hi,

We have intranet(say abc.com), and a button on intranet to access a website(say xyz.com). I have to provide access to xyz.com, only if they com from intranet.
Intranet is in html where as the website is in C#.

I have written the following code in the intranet page (where the website link is present)

<form action="" method="post" name="form1" target="_blank">
<input name="culture" type="hidden" value="1">
<input name="auth" type="hidden" value="culture">
<input type="button" class="button" value="test page from link" onClick="location.href='http://xyz.com/'">
</form>

我在C＃页面中使用了 Request.UrlReferrer.ToString（）; 来授权他们来自的上一页。但它返回 NULL 。



有没有其他方法可以查看上一页的网址？





在此先感谢，

Suma。

I have used Request.UrlReferrer.ToString(); in C# page to authorize the previous page they have come from. But its returning NULL.

Is there any other way to check the previous page url?


Thanks in advance,
Suma.

推荐答案

string urlName = Request.UrlReferrer.ToString();

它没有的情况'工作：



使用Response.Redirect / Server.Transfer;

点击收藏夹，历史记录或最近-typed URL列表;

单击IE工具栏中的Home或IE的链接工具栏中的项目;

使用location.href或location.replace（）在客户端JScript / JavaScript / VBScript;

使用HierMenus（详情）;

直接在浏览器中输入URL并点击Enter或点击'Go';

从电子邮件或MS Office文档启动可点击的URL;

使用Response.AddHeader或< meta http-equiv = refresh>重定向;

用XML加载URL



在referer中，你可以获得上一页的名称。



希望这可以帮到你。

The situations where it doesn't work:

using Response.Redirect / Server.Transfer;
clicking on a Favorite, History, or the recently-typed URLs list;
clicking on 'Home' in IE's toolbar, or an item in IE's 'Links' toolbar;
using location.href or location.replace() in client-side JScript/JavaScript/VBScript;
using HierMenus (details);
typing the URL directly in the browser and hitting Enter or clicking 'Go';
launching a clickable URL from an e-mail or MS Office document;
using Response.AddHeader or <meta http-equiv=refresh> to redirect;
loading the URL with XML

in referer veriable u will get the previous page name.

Hope this can help you.

你好吗
以下网址上的
给出了其他方法

http://www.dotnetcurry.com/ShowArticle.aspx?ID=89 [ ^ ]



这些方法可能会有所帮助............

祝你好运

hello there
on the following URL other ways to do that are given
http://www.dotnetcurry.com/ShowArticle.aspx?ID=89[^]

these methods may be helpful ............
Best regards

没有办法获取上一页的网址。但是，我认为您可以通过两种方式解决此问题

1.IP白名单（白名单在xyz.com中列出您的内部网（abc.com）的IP地址）

2.向网站发送查询字符串说location.href ='http：//xyz.com？request_from = abc并验证您的请求。

There is no way to get the previous page Url. However, I think you can resolve this issue in two ways
1.IP white listing (White list the IP address of your intranet(abc.com) in xyz.com )
2.Pass a query string to the web site say "location.href='http://xyz.com?request_from=abc and validate your request.

这篇关于在C＃中获取上一页网址的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！