C＃从URL下载文件 [英] C# Download file from URL

问题描述

有人可以告诉我如何从该URL在C＃程序中下载文件：
http://www.cryptopro.ru/products/cades/plugin/get_2_0

Can anybody tell me how i can download file in my C# program from that URL: http://www.cryptopro.ru/products/cades/plugin/get_2_0

我尝试使用WebClient.DownloadFile，但是我m仅获得html页面而不是文件。

I try to use WebClient.DownloadFile, but i'm getting only html page instead of file.

推荐答案

在Fiddler中查找，如果没有合法的U / A字符串，则请求失败，所以：

Looking in Fiddler the request fails if there is not a legitimate U/A string, so:

WebClient wb = new WebClient();
wb.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.33 Safari/537.36");
wb.DownloadFile("http://www.cryptopro.ru/products/cades/plugin/get_2_0/cadeplugin.exe", "c:\\xxx\\xxx.exe");

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