Asp.net mvc 4 在MVC4文件中上载其保存“；System.Web.HttpPostedFileWrapper；在数据库中而不是文件名中

我正在尝试使用MVC4进行文件上传，但它的保存对象名“System.Web.HttpPostedFileWrapper”在DB中，而不是文件名，即“Songs.MP3”，并且文件不会传输到给定位置

模型

看法

{

---

---

文件在~/Images/Files位置不可用。

这里几乎没有问题。第一个问题是命名约定。您的文件上载模型将属性

FileUploadLocation

作为字符串，并且在控制器的创建方法中，您正在传递

FileUpload FileUpload

模型和

HttpPostedFileBase FileUploadLocation

另一个更重要的问题是，您不应该将视图模型保存到数据库中，它应该映射到某种域对象，而域对象又会被保存。例如：

创建新视图模型：

public class FileUploadViewModel
{
    public int FileUploadID { get; set; }
    public int AlbumID { get; set; }
    public string FileType { get; set; }
    public HttpPostedFileBase FileUploadFile { get; set; }

    public virtual Albums Albums { get; set; }
}

从域模型中删除虚拟方法：

public class FileUpload
{
    [Key]
    public int FileUploadID { get; set; }
    public int AlbumID { get; set; }
    public string FileType { get; set; }
    public string FileUploadLocation { get; set; }
}

然后，控制器创建方法应如下所示：

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(FileUploadViewModel model)
{
    if (ModelState.IsValid)
    {
         var fileName = Path.GetFileName(model.FileUploadFile.FileName);
         var path = Path.Combine(Server.MapPath("~/Images/Files"), fileName);
         model.FileUploadFile.SaveAs(path);

         db.FileUploads.Add(new FileUpload
         {
             FileUploadID = model.FileUploadID,
             AlbumID = model.AlbumID,
             FileType = model.FileType,
             FileUploadLocation = path
         });
         db.SaveChanges();
         return RedirectToAction("Index");
    }

        ViewBag.AlbumID = new SelectList(db.Albumss, "AlbumID", "AlbumTitle", model.AlbumID);
        return View(model);
    }

        //
    // POST: /FileUpload/Create

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create(FileUpload fileupload, HttpPostedFileBase FileUploadLocation)
    {
        if (ModelState.IsValid)
        {
            var fileName = Path.GetFileName(FileUploadLocation.FileName);
            var path = Path.Combine(Server.MapPath("~/Images/Files"), fileName);
            FileUploadLocation.SaveAs(path);

            db.FileUploads.Add(fileupload);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        ViewBag.AlbumID = new SelectList(db.Albumss, "AlbumID", "AlbumTitle", fileupload.AlbumID);
        return View(fileupload);
    }

public class FileUploadViewModel
{
    public int FileUploadID { get; set; }
    public int AlbumID { get; set; }
    public string FileType { get; set; }
    public HttpPostedFileBase FileUploadFile { get; set; }

    public virtual Albums Albums { get; set; }
}

public class FileUpload
{
    [Key]
    public int FileUploadID { get; set; }
    public int AlbumID { get; set; }
    public string FileType { get; set; }
    public string FileUploadLocation { get; set; }
}

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(FileUploadViewModel model)
{
    if (ModelState.IsValid)
    {
         var fileName = Path.GetFileName(model.FileUploadFile.FileName);
         var path = Path.Combine(Server.MapPath("~/Images/Files"), fileName);
         model.FileUploadFile.SaveAs(path);

         db.FileUploads.Add(new FileUpload
         {
             FileUploadID = model.FileUploadID,
             AlbumID = model.AlbumID,
             FileType = model.FileType,
             FileUploadLocation = path
         });
         db.SaveChanges();
         return RedirectToAction("Index");
    }

        ViewBag.AlbumID = new SelectList(db.Albumss, "AlbumID", "AlbumTitle", model.AlbumID);
        return View(model);
    }