Question

我有这个功能：

public ActionResult Download(string FileName)
    {

        if (FileName != null)
        {
            string filepath = AppDomain.CurrentDomain.BaseDirectory + "/uploads/" + FileName;
            byte[] filedata = System.IO.File.ReadAllBytes(filepath);
            string contentType = MimeMapping.GetMimeMapping(filepath);

            var cd = new System.Net.Mime.ContentDisposition
            {
                FileName = FileName,
                Inline = true,
            };

            Response.AppendHeader("Content-Disposition", cd.ToString());

            return File(filedata, contentType);
        }
        return RedirectToAction("Index");
    }

在本地服务器上工作的相同代码但在实时服务器中没有，任何人都可以告诉我原因吗？

Answer 1

这可能不是你的答案，但你可以用一行写出整件事使用return File(path, System.Net.Mime.MediaTypeNames.Application.Octet, name); 文件将被下载...（我在mvc4中使用它，它也在现场工作..）

例如，

var audio_path = "/" + path.Substring(path.IndexOf("Content"));
String audio_name = path.Substring(path.LastIndexOf("/") + 1);
return File(audio_path, System.Net.Mime.MediaTypeNames.Application.Octet, audio_name);

Answer 2

您可以使用以下代码下载文件：

#region Download File ==>
        public ActionResult downloadfile(string Filename, string MIMEType)
        {
            try
            {
                string file_name = "/Files/EvidenceUploads/" + Filename;
                string contentType = "";
                //Get the physical path to the file.
                string FilePath = Server.MapPath(file_name);

                string fileExt = Path.GetExtension(file_name);

                contentType = MIMEType;

                //Set the appropriate ContentType.
                Response.ContentType = contentType;
                Response.AppendHeader("content-disposition", "attachment; filename=" + (new FileInfo(file_name)).Name);

                //Write the file directly to the HTTP content output stream.
                Response.WriteFile(FilePath);
                Response.End();
                return View(FilePath);
            }
            catch
            {
                Response.End();
                return View();
                //To Do
            }

        }
        #endregion

无法将文件下载到mvc 5的实时网站

2 个答案: