1. JavaScript

复制代码 代码如下:
/**
* 获取HTTP请求的Referer
* @ishost 布尔类型 Referer为空时是否返回Host（网站首页地址）
*/
function get_http_referer(ishost) {
if (ishost === undefined) { ishost = true; }
if (document.referrer) {
return document.referrer;
} else {
if (ishost) {
return window.location.protocol + "//" + window.location.host;
} else {
return "";
}
}
}

2. C#

复制代码 代码如下:
/// <summary>
/// 获取HTTP请求的Referer
/// </summary>
/// <param name="ishost">Referer为空时是否返回Host（网站首页地址）</param>
/// <returns>string</returns>
public string GetReferer(bool ishost)
{
if ( Request.UrlReferrer != null)
{
return Request.UrlReferrer.ToString();
}
else
{
if (ishost)
{
return Request.Url.Scheme + "://" + Request.Url.Authority;
}
else
{
return "";
}
}
}

3. C#中取得Request URL的各个部分
网址：http://localhost:1897/News/Press/Content.aspx/123?id=1#toc

复制代码 代码如下:
Request.ApplicationPath/
Request.PhysicalPathD:\Projects\Solution\web\News\Press\Content.aspx
System.IO.Path.GetDirectoryName(Request.PhysicalPath)D:\Projects\Solution\web\News\Press
Request.PhysicalApplicationPathD:\Projects\Solution\web\
System.IO.Path.GetFileName(Request.PhysicalPath)Content.aspx
Request.CurrentExecutionFilePath/News/Press/Content.aspx
Request.FilePath/News/Press/Content.aspx
Request.Path/News/Press/Content.aspx/123
Request.RawUrl/News/Press/Content.aspx/123?id=1
Request.Url.AbsolutePath/News/Press/Content.aspx/123
Request.Url.AbsoluteUrihttp://localhost:1897/News/Press/Content.aspx/123?id=1
Request.Url.Schemehttp
Request.Url.Hostlocalhost
Request.Url.Port1897
Request.Url.Authoritylocalhost:1897
Request.Url.LocalPath/News/Press/Content.aspx/123
Request.PathInfo/123
Request.Url.PathAndQuery/News/Press/Content.aspx/123?id=1
Request.Url.Query?id=1
Request.Url.Fragment
Request.Url.Segments/
News/
Press/
Content.aspx/
123

4. JavaScript window.location对象
http://www.zzvips.com/article/157233.html

怎么样，是不是已经学会了在javascript和C#中获取页面的referer了呢？如有什么疑问，也可以联系我