Question

大家好我想问一下如何从网上下载.jpg文件到我创建的“上传”项目文件夹？

我正在尝试将youtube缩略图图片下载到我的“uploads”文件夹。

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);

Answer 1

查看System.Net.WebClient，这是一个.NET类，允许您通过HTTP发出资源请求。

http://msdn.microsoft.com/en-us/library/system.net.webclient(v=vs.100).aspx

提供了检查示例。

    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));

如何从MV下载jpg从MVC3项目文件夹？

1 个答案: