C#实现文件上传以及文件下载

来源:转载

 public ActionResult Upload()

{

// var pathUrl = "http://" + Request.Url.Authority;

var file = Request.Files["Filedata"];

var uploadFileName = file.FileName;

string filePath = "/File/" + uploadFileName;

string AbsolutePath = Server.MapPath(filePath);

file.SaveAs(AbsolutePath); //将上传的东西保存

return Json(new { FileName = uploadFileName, FilePath = filePath });

}

 public ActionResult DownLoad(string FileName)

{

string fileName = FileName;//客户端保存的文件名

string filePath = Server.MapPath("/File/"+ FileName);//路径

//以字符流的形式下载文件

FileStream fs = new FileStream(filePath, FileMode.Open);

byte[] bytes = new byte[(int)fs.Length];

fs.Read(bytes, 0, bytes.Length);

fs.Close();

Response.ContentType = "application/octet-stream";

//通知浏览器下载文件而不是打开

Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));

Response.BinaryWrite(bytes);

Response.Flush();

Response.End();

return Json("");

}

 

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