無需設置formData

Question

提交附加表單數據我正在關注How-to-submit-additional-form-data，並有一個正在提交附加表單數據的工作文件上載，即。額外的textarea輸入字段description[]，具有分塊和多文件支持，但不設置formData:{ }.fileupload()。我的問題是，我只能將該字段作爲數組提交，description[]，我無法想出一些邏輯將相應的description[i]與適當的文件相關聯。我使用的是asp.net mvc，在這種情況下應該不重要。

觀：

<script type="text/javascript"> 
    $(document).ready(function() { 
     $('#btnContinue').prop('disabled', true); 
     $('#fileupload').fileupload({ 
      url: '@Url.Action("UploadChunk", "Upload")', 
      maxChunkSize: 1048576, 
     }).addClass('fileupload-processing') 
     .bind('fileuploadalways', function (e, data) { 
      if ($('#fileIds').val().indexOf(';' + data.result.id + ';') == -1) { 
       var pre = $('#fileIds').val() == "" ? ';' : ''; 
       var append = $('#fileIds').val() + pre + data.result.id + ';'; 
       $('#fileIds').val(append); 
      } 
     }) 
     .bind('fileuploaddone', function (e, data) { 
      $('#btnContinue').prop('disabled', false); 
     }); 

     $.ajax({ 
      url: $('#fileupload').fileupload('option', 'url'), 
      dataType: 'json', 
      context: $('#fileupload')[0] 
     }).always(function() { 
      $(this).removeClass('fileupload-processing'); 
     }); 
    }); 
</script> 
@using (Html.BeginForm("FileSet", "Upload", FormMethod.Post, new { id = "fileupload" })) 
{ 
    @Html.AntiForgeryToken() 
    @Html.Hidden("fileIds", "", new { @id = "fileIds" }) 

    <div class="form-horizontal"> 
     <hr /> 
     @Html.ValidationSummary(true, "", new { @class = "text-danger" }) 

     <div class="row fileupload-buttonbar"> 
      <div class="col-lg-7"> 
       <!-- The fileinput-button span is used to style the file input field as button --> 
       <span class="btn btn-success fileinput-button"> 
        <i class="glyphicon glyphicon-plus"></i> 
        <span>Add files...</span> 
        <input type="file" name="files[]" multiple> 
       </span> 
       <button type="submit" class="btn btn-primary start" id="btnStartUpload"> 
        <i class="glyphicon glyphicon-upload"></i> 
        <span>Start upload</span> 
       </button> 
       <button type="reset" class="btn btn-warning cancel" id="btnCancelUpload"> 
        <i class="glyphicon glyphicon-ban-circle"></i> 
        <span>Cancel upload</span> 
       </button> 
       <button type="button" class="btn btn-danger delete" id="btnDeleteUpload"> 
        <i class="glyphicon glyphicon-trash"></i> 
        <span>Delete</span> 
       </button> 
       <input style="visibility: hidden" type="checkbox" class="toggle"> 
       <!-- The global file processing state --> 
       <span class="fileupload-process"></span> 
      </div> 
      <!-- The global progress state --> 
      <div class="col-lg-5 fileupload-progress fade"> 
       <!-- The global progress bar --> 
       <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100"> 
        <div class="progress-bar progress-bar-success" style="width:0%;"></div> 
       </div> 
       <!-- The extended global progress state --> 
       <div class="progress-extended">&nbsp;</div> 
      </div> 
     </div> 
     <table role="presentation" class="table table-striped"><tbody class="files"></tbody></table>  

     <div class="row"> 
      <div class="col-md-10"> 
       <button type="submit" id="btnContinue" class="btn btn-primary">Continue</button> 
      </div> 
     </div> 
    </div> 
} 

<!-- The template to display files available for upload --> 
<script id="template-upload" type="text/x-tmpl"> 
{% for (var i=0, file; file=o.files[i]; i++) { %} 
<tr class="template-upload fade"> 
    <td> 
     <span class="preview"></span> 
    </td> 
    <td> 
     <p class="name">{%=file.name%}</p> 
     <strong class="error text-danger"></strong> 
    </td> 
    <td> 
     <input type="hidden" name="locator[]" value="{%=file.name%}" /> 
     <textarea name="description[]" placeholder="Enter description" class="form-control" rows="3"></textarea> 
     <strong class="error text-danger"></strong> 
    </td> 
    <td> 
     <p class="size">Processing...</p> 
     <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="progress-bar progress-bar-success" style="width:0%;"></div></div> 
    </td> 
    <td> 
     {% if (!i && !o.options.autoUpload) { %} 
     <button class="btn btn-primary start" disabled> 
      <i class="glyphicon glyphicon-upload"></i> 
      <span>Start</span> 
     </button> 
     {% } %} 
     {% if (!i) { %} 
     <button class="btn btn-warning cancel"> 
      <i class="glyphicon glyphicon-ban-circle"></i> 
      <span>Cancel</span> 
     </button> 
     {% } %} 
    </td> 
</tr> 
{% } %} 
</script> 
<!-- The template to display files available for download --> 
<script id="template-download" type="text/x-tmpl"> 
{% for (var i=0, file; file=o.files[i]; i++) { %} 
<tr class="template-download fade"> 
    <td> 
     <span class="preview"> 
      {% if (file.thumbnailUrl) { %} 
      <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" data-gallery><img src="{%=file.thumbnailUrl%}"></a> 
      {% } %} 
     </span> 
    </td> 
    <td> 
     <p class="name"> 
      {% if (file.url) { %} 
      <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" {%=file.thumbnailUrl?'data-gallery':''%}>{%=file.name%}</a> 
      {% } else { %} 
      <span>{%=file.name%}</span> 
      {% } %} 
     </p> 
     {% if (file.error) { %} 
     <div><span class="label label-danger">Error</span> {%=file.error%}</div> 
     {% } %} 
    </td> 
    <td> 
     <span class="size">{%=o.formatFileSize(file.size)%}</span> 
    </td> 
    <td> 
     {% if (file.deleteUrl) { %} 
     <button class="btn btn-danger delete" data-type="{%=file.deleteType%}" data-url="{%=file.deleteUrl%}" {% if (file.deletewithcredentials) { %} data-xhr-fields='{"withCredentials":true}' {% } %}> 
      <i class="glyphicon glyphicon-trash"></i> 
      <span>Delete</span> 
     </button> 
     <input type="checkbox" name="delete" value="1" class="toggle"> 
     {% } else { %} 
     <button class="btn btn-warning cancel"> 
      <i class="glyphicon glyphicon-ban-circle"></i> 
      <span>Cancel</span> 
     </button> 
     {% } %} 
    </td> 
</tr> 
{% } %} 

控制器：

[HttpPost] 
public ContentResult UploadChunk(string[] description) 
{ 
    ParseRequestHeaderRanges(this.Request); 
    var r = new List<UploadFilesResult>(); 
    var i = 0; 

    foreach (string file in Request.Files) 
    { 
     HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase; 
     if (hpf.ContentLength == 0) 
      continue; 

     var uploader = System.Security.Principal.WindowsIdentity.GetCurrent().Name; 
     var result = DataTranslator.UploadChunk(hpf.InputStream, hpf.FileName, description[i], hpf.ContentType, 
      hpf.ContentLength, (int)hpf.InputStream.Length, this.TotalBytes, uploader); 
     r.Add(result); 
     i++; 
    } 

    return Content("{\"id\":\"" + r[0].Id + "\",\"name\":\"" + r[0].Name + "\",\"type\":\"" + r[0].Type + "\",\"size\":\"" + string.Format("{0} bytes", r[0].Length) + "\"}", "application/json"); 
} 

Answer 1

而不是具有它是一個數組使它的哈希？說使用文件名？這樣你就不必依賴正確的順序。

<textarea name="description[{%=file.name%}]" placeholder="Enter description" class="form-control" rows="3"></textarea> 

和Controller：

var result = DataTranslator.UploadChunk(
    hpf.InputStream, 
    hpf.FileName, 
    description[hpf.FileName], 
    hpf.ContentType, 
    hpf.ContentLength, 
    (int)hpf.InputStream.Length, 
    this.TotalBytes, 
    uploader 
);