在Asp.Net文件上傳MVC

Question

我想在我的MVC項目中創建一個文件上傳頁面。首先，我想在本地進行管理。 我的問題是： 1-這是我的控制器和視圖。有什麼我必須做的，使這個代碼的工作？我的意思是定義一個模型或使用jquery等等。文件上傳過程是什麼？

[HttpPost] 
public ActionResult FileUpload(HttpPostedFileBase uploadFile) 
{ 
if (uploadFile.ContentLength > 0) 
      { 
       string filePath = Path.Combine(HttpContext.Server.MapPath("C:/Users/marti/../PhotoGallery/myimages"), 
       Path.GetFileName(uploadFile.FileName)); 
       uploadFile.SaveAs(filePath); 
      } 
      return View(); 
} 

這裏查看：

<input name="uploadFile" type="file" /> 
<input type="submit" value="Upload File" /> 

2 - 當我調試此，它從來就沒有到控制器。

Answer 1

您可能需要enctype='multipart/form-data'視圖形式：

@model ImageModel 
    @{ 
     ViewBag.Title = "New Image"; 
    } 
    <div class="content-form-container width-half"> 
     <form id='PropertiesForm' action='@Url.Action(ImageController.Actions.Add, ImageController.Name)' method='post' enctype='multipart/form-data' class='content-form'> 
     @Html.Partial("ImageName") 
     <fieldset class='content-form-1field'> 
      <div class='legend'> 
       file to upload 
      </div> 
      @Html.LabelledFileInput(ImageView.FileName, string.Empty) 
     </fieldset> 
     <div class='buttons'> 
      @Html.Button("button-submit", "submit") 
     </div> 
     </form> 
    </div> 
    @section script{ 
     @Html.JavascriptInclude("~/js/image/new.min.js") 
    } 

這裏是我的控制器代碼：

[HttpPost] 
    [MemberAccess] 
    public ActionResult Add() 
    { 
     var name = ImageView.ImageName.MapFrom(Request.Form); 

     if (Request.Files.Count == 0) 
     { 
      RegisterFailureMessage("No file has been selected for upload."); 

      return ValidationFailureAdd(name); 
     } 

     var file = Request.Files[0]; 

     if (file == null || file.ContentLength == 0) 
     { 
      RegisterFailureMessage("No file has been selected for upload or the file is empty."); 

      return ValidationFailureAdd(name); 
     } 

     var format = ImageService.ImageFormat(file.InputStream); 

     if (format != ImageFormat.Gif && format != ImageFormat.Jpeg && format != ImageFormat.Png) 
     { 
      RegisterFailureMessage("Only gif, jpg and png files are supported."); 

      return ValidationFailureAdd(name); 
     } 

     if (query.HasName(name)) 
     { 
      RegisterFailureMessage(string.Format("Image with name '{0}' already exists.", name)); 

      return ValidationFailureAdd(name); 
     } 

     using (var scope = new TransactionScope()) 
     { 
      var id = Guid.NewGuid(); 

      var fileExtension = ImageService.FileExtension(format); 

      Bus.Send(new AddWikiImageCommand 
        { 
         Id = id, 
         Name = name, 
         FileExtension = fileExtension 
        }); 

      var path = Path.Combine(ApplicationConfiguration.MediaFolder, 
            string.Format("{0}.{1}", id.ToString("n"), fileExtension)); 

      if (System.IO.File.Exists(path)) 
      { 
       System.IO.File.Delete(path); 
      } 

      file.SaveAs(path); 

      scope.Complete(); 
     } 

     return RedirectToAction(Actions.Manage); 
    } 

裏面還有一些定製位，所以你可以忽略這些。你需要的東西應該在那裏。

HTH