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"codetitle">复制代码 代码如下:
Request.ApplicationPath /
Request.PhysicalPath D:\Projects\Solution\web\News\Press\Content.aspx
System.IO.Path.GetDirectoryName(Request.PhysicalPath) D:\Projects\Solution\web\News\Press
Request.PhysicalApplicationPath D:\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"http://localhost:1897/News/Press/Content.aspx/123">http://localhost:1897/News/Press/Content.aspx/123"https://www.jb51.net/article/57407.htm">https://www.jb51.net/article/57407.htm

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