在JavaScript和C#中获得referer

1. JavaScript

/**
 * 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#

/// <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
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?id=1
Request.Url.AbsolutePath	/News/Press/Content.aspx/123
Request.Url.AbsoluteUri	http://localhost:1897/News/Press/Content.aspx/123?id=1
Request.Url.Scheme	http
Request.Url.Host	localhost
Request.Url.Port	1897
Request.Url.Authority	localhost: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

JavaScript window.location对象