使用C#从短网址中获取长网址

我一直在使用LongURL.org API扩展短网址.此服务的优点在于,它返回一个长URL,实际页面的标题和元信息.

我真正的问题是,获取数据似乎花费了过多的时间.我正在考虑将请求转移到JavaScript,以便通过AJAX更新面板获取URL,以便快速加载页面,并在用户查看内容(某些搜索结果)时更新URL数据.

有谁知道我还能在更好的时间范围内收集上述信息吗？我正在使用C#ASP.NET,但会考虑其他语言的解决方案.对此领域的任何指导均深表感谢.

解决方法:

这是我之前在一个项目中使用过的一个…

private string UrlLengthen(string url)
{
    string newurl = url;

    bool redirecting = true;

    while (redirecting)
    {

        try
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(newurl);
            request.AllowAutoRedirect = false;
            request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 4.0.20506)";
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            if ((int)response.StatusCode == 301 || (int)response.StatusCode == 302)
            {
                string uriString = response.Headers["Location"];
                Log.Debug("Redirecting " + newurl + " to " + uriString + " because " + response.StatusCode);
                newurl = uriString;
                // and keep going
            }
            else
            {
                Log.Debug("Not redirecting " + url + " because " + response.StatusCode);
                redirecting = false;
            }
        }
        catch (Exception ex)
        {
            ex.Data.Add("url", newurl);
            Exceptions.ExceptionRecord.ReportWarning(ex); // change this to your own
            redirecting = false;
        }
    }
    return newurl;
}

标签：url,api,expander,asp-net,c
来源： https://codeday.me/bug/20191024/1917015.html