解决方法
这是另一个论坛的答案
如果您使用C#(或VB,net)和.net fileupload控件,我觉得很容易实现.您可以在arraylist“allowedExtensions”中定义文件类型.
string upload_Image(FileUpload fileupload,string ImageSavedpath) { FileUpload fu = fileupload; string imagepath = ""; if (fileupload.HasFile) { string filepath = Server.MapPath(ImageSavedpath); String fileExtension = System.IO.Path.GetExtension(fu.FileName).ToLower(); String[] allowedExtensions = { ".gif",".png",".jpeg",".jpg" }; for (int i = 0; i < allowedExtensions.Length; i++) { if (fileExtension == allowedExtensions[i]) { try { string s_newfilename = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + fileExtension; fu.PostedFile.SaveAs(filepath + s_newfilename); imagepath = ImageSavedpath + s_newfilename; } catch (Exception ex) { Response.Write("File Could not be uploaded."); } } } } return imagepath; }
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