I have an aspx page,where the user will enter a valid image url(ex : https://stackoverflow.com/Content/Img/stackoverflow-logo-250.png). I need the program to upload this image to the Server. How can i do this ?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
回答1:
System.Net.WebClient webClient = new WebClient();
webClient.DownloadFile(@"http://stackoverflow.com/Content/Img/stackoverflow-logo-250.png",
@"c:\path\localfile.png");
You can use Server.MapPath to get physical directory on the server corresponding to the relative or virtual path, for example Server.MapPath("~/Images")
