Asp.net mvc 3 如何将jpg从web下载到MVC3中的项目文件夹？

大家好，我想问一下，如何将.jpg文件从web下载到我创建的“上载”项目文件夹中

我正在尝试将youtube缩略图下载到我的“上传”文件夹中

我的控制器：

    var fileName = Path.GetFileName(http://img.youtube.com/vi/RUgd_GDPhYk/1.jpg);
                var path = Path.Combine(Server.MapPath("~/uploads/"), fileName);
file.SaveAs(path);

---

看看

System.Net.WebClient

，它是一个.Net类，允许您通过HTTP请求资源

检查提供的示例

    var client = new System.Net.WebClient();

    var uri = "http://img.youtube.com/vi/RUgd_GDPhYk/1.jpg";

    // Here, we're just using the same filename as the resource we're after.
    // You may wish to change this to include extra stuff because you'll
    // inevitably run into a naming clash - especially with stuff like 1.jpg
    var targetFilename = Path.GetFileName(uri);

    client.DownloadFile(uri, 
       Path.Combine(Server.MapPath("~/uploads"), targetFilename));