WebClient.DownloadString 结果与浏览器结果 2 不匹配

WebClient.DownloadString result is not match with Browser result 2

以下代码:

WebClient wc = new WebClient();
wc.Encoding = Encoding.UTF8;
string Url = "http://www.tsetmc.com/tsev2/data/instinfodata.aspx?i=59266699437480384&c=64";
return wc.DownloadString(Url);

代码returns:

�Q�T�MP�J�A|�^D����~���C�"�����l� ��;I&3=j=�iG�H9Ȓ�J�^� �j��T�Q=HH�'Qm�������1�hF�4�*�������{�x�\o?

当我在任何网络浏览器中访问 URL 时,我得到:

12:29:45,A ,3540,3567,3600,3621,3690,3515,140,238204,849582597,1,20140914,122945;;1@2825@3523@3583@1700@1,1@2000@3522@3600@8700@2,1@500@3511@3640@2500@1,;19774,99736,1

有没有办法得到正确的字符串?

另外,我使用这个在线解码器,但我没有得到正确的答案: Universal Online Decoder

这不是编码问题,我认为它与压缩有关,在本例中为 gzip。阅读Uncompressing gzip response from WebClient。 那应该可以解决您的问题。

public class WC : WebClient
{
    protected override WebRequest GetWebRequest(Uri url)
    {
        var request = base.GetWebRequest(url) as HttpWebRequest;
        request.AutomaticDecompression = DecompressionMethods.GZip;

        return request;
    }
}

用法:

var url = "http://www.tsetmc.com/tsev2/data/instinfodata.aspx?i=59266699437480384&c=64";
var wc = new WC();
wc.Encoding = Encoding.UTF8;
var result = wc.DownloadString(url);

在 Linqpad 中,您可以 运行 以下代码,Webclient 的变体。从图中可以看出,这是由于浏览器自动处理的 Gzip 压缩所致。

async void Main()
{
    using (var handler = new HttpClientHandler())
    {
        handler.AutomaticDecompression = DecompressionMethods.GZip;
        using (HttpClient client = new HttpClient(handler))
        {
            var result = await client.GetStringAsync("http://www.tsetmc.com/tsev2/data/instinfodata.aspx?i=59266699437480384&c=64");
            result.Dump();
        }
    }
}