upload
<form action="/Home/UploadFile" method="post" enctype="multipart/form-data">
<input type="file" name="file" /><br />
<input type="submit" value="提交" />
</form>
Backstage
[HttpPost]
public ActionResult UploadFile(HttpPostedFileBase file)
{
string basePath = System.AppDomain.CurrentDomain.BaseDirectory;
var files = Request.Files; //Method to get files
if (files != null && files.Count >1)
{
#region Perform multiple file uploads
for (int i = 0; i < files.Count; i++)
{
HttpPostedFileBase fileitem = files[i];
// Determine the size of the file
string strExtension = Path.GetExtension(fileitem.FileName);
double dFileSize = fileitem.ContentLength;
if (dFileSize > 5242880)//1024*1024*5)
{
return Content("<script>alert('" + fileitem.FileName + "文件大于5MB')</script>");
}
else
{
//Create a file
string filePath = "~/Files";
Directory.CreateDirectory(Server.MapPath(filePath));
//create unique filename
string fileName = Guid.NewGuid().ToString();
string fFullDir = filePath + fileName + strExtension;
fileitem.SaveAs(Server.MapPath(fFullDir));
}
}
#endregion
}
else
{
#region Perform a single file upload
if (file != null)
{
//You can determine its size format
//create folder
string filePath = "~/Files";
string path = Server.MapPath(filePath);
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
int size = file.ContentLength;
string timePath = DateTime.Now.ToString("yyyyMMddHHmmss");
string fileName = timePath+file.FileName;
string pathh = Path.Combine(path, fileName);
file.SaveAs(pathh);
//return Content("<script>alert('Upload successful!');location.href="
// + Url.Content(filePath) + "</script>");
}
#endregion
}
return View();
}
download:
<li>@Html.ActionLink("文件下载", "FileDown", "Home")</li>
public FileStreamResult FileDown()
{
string fileName = "aaa.txt";//The file name saved by the client
string filePath = Server.MapPath("~/Files/Common methods.txt");//Path "D:\\abc.xls";//File path
return File(new FileStream(filePath, FileMode.Open), "text/plain",
fileName);
}
online method:
method one:
public FileStreamResult DownFile(string filePath, string fileName)
{
string absoluFilePath = Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["AttachmentPath"] + filePath);
return File(new FileStream(absoluFilePath, FileMode.Open), "application/octet-stream", Server.UrlEncode(fileName));
}
Method two:
public ActionResult DownFile(string filePath, string fileName)
{
filePath = Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["AttachmentPath"] + filePath);
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.Charset = "UTF-8";
Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(fileName));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
return new EmptyResult();
}
View call:
<a href="/Document/[email protected]&[email protected]">下载</a>