文件沒有上傳到目錄

Question

我想用BeginForm（）上傳文件到一個文件夾。我創建一個支架項目，我的看法如下所示：

@model Blog.Models.Resource 

@{ 
    ViewBag.Title = "Create"; 
} 

<h2>Create</h2> 

@using (Html.BeginForm("Create", "Resources", FormMethod.Post, new {enctype = "multipart/form-data"})) 
{ 
    @Html.AntiForgeryToken() 

    <div class="form-horizontal"> 
     <h4>Resource</h4> 
     <hr /> 
     @Html.ValidationSummary(true) 

     <!---Name--> 
     <div class="form-group"> 
      @Html.LabelFor(model => model.ResourceName, new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.ResourceName) 
       @Html.ValidationMessageFor(model => model.ResourceName) 
      </div> 
     </div> 

     <!---Resource--> 
     <div class="form-group"> 
      @Html.LabelFor(model => model.Item, new { @class = "control-label col-md-2" }) 
     </div> 
     <input type="file" name="FileUpload1" /><br /> 


     <!---Text--> 
     <div class="form-group"> 
      @Html.LabelFor(model => model.Text, new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.TextAreaFor(model => model.Text) 
       @Html.ValidationMessageFor(model => model.Text) 
      </div> 
     </div> 

     <div class="form-group"> 
      <div class="col-md-offset-2 col-md-10"> 
       <input type="submit" value="Create" class="btn btn-default" /> 
      </div> 
     </div> 
    </div> 
} 

<div> 
    @Html.ActionLink("Back to List", "Index") 
</div> 

我的模型如下：

public class Resource 
    { 

     [Key] 
     public int ResourceId { get; set; } 

     public string ResourceName { get; set; } 

     public string Item { get; set; } 

     public string Text { get; set; } 

    } 

我的操作如下：

// GET: /Resources/Create 
     public ActionResult Create() 
     { 
      return View(); 
     } 

     // POST: /Resources/Create 
     // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
     // more details see http://go.microsoft.com/fwlink/?LinkId=317598. 
     [HttpPost] 
     [ValidateAntiForgeryToken] 
     public ActionResult Create(Resource resource, HttpPostedFileBase file) 
     { 
      //verify file that file exist 
      if (file != null && file.ContentLength > 0) 
      { 
       //get filename 
       var fileName = Path.GetFileName(file.FileName); 
       //store file in speficied folder 
       var path = Path.Combine(Server.MapPath("~/Catalog/Uploads"), fileName); 
       file.SaveAs(path); 
      } 


      if (ModelState.IsValid) 
      { 
       db.Resources.Add(resource); 
       db.SaveChanges(); 
       return RedirectToAction("Index"); 
      } 

      return View(resource); 
     } 

我一直在尋找在其他帖子周圍，我的情況幾乎如本文所述，但我確實包括{enctype = "multipart/form-data"}。但是對我來說這是行不通的：

ASP.NET MVC File-upload

而其他數據保存到文件沒有上傳到指定的文件夾中的數據庫。

任何人都可以幫忙嗎？

Answer 1

未保存的文件會導致我認爲它爲空。我會嘗試兩件事：

1. 請在enctype上儘量不要有空格。所以它會是multipart/form-data。
2. 使您的文件上傳的名稱與您的操作中的HttpPostedFileBase參數匹配。因此請將<input type="file" name="FileUpload1" />更改爲<input type="file" name="file" />。這可以幫助模型聯編程序執行它的工作。

Answer 2

您的問題是因爲輸入文件的name與HttpPostedFileBase變量名稱不匹配。 所以你應該有這樣的事情：

[HttpPost] 
    [ValidateAntiForgeryToken] 
    public ActionResult Create(Resource resource, HttpPostedFileBase FileUpload1) 
    { 
     //verify file that file exist 
     if (fFileUpload1 != null && FileUpload1.ContentLength > 0) 
     { 
      //get filename 
      var fileName = Path.GetFileName(FileUpload1.FileName); 
      //store file in speficied folder 
      var path = Path.Combine(Server.MapPath("~/Catalog/Uploads"), fileName); 
      FileUpload1.SaveAs(path); 
     } 


     if (ModelState.IsValid) 
     { 
      db.Resources.Add(resource); 
      db.SaveChanges(); 
      return RedirectToAction("Index"); 
     } 

     return View(resource); 
    }