如何在使用qq.FileUploader上傳文件時在文件名中添加前綴字符串

Question

我的代碼是這樣的，當用戶像1上傳時，如何在文件名的前面添加像「123_」這樣的前綴。 JPG，然後將其更改爲123_1.jpg到服務器？

    <script type="text/javascript">           
         var uploader = new qq.FileUploader({        
          element: document.getElementById('file-uploader'),    
          allowedExtensions: ["jpg", "pdf"],   
          template: '<div class="qq-uploader">' +      
             '<div class="qq-upload-drop-area"><span>drag the files to here to upload</span></div>' + 
             '<div class="qq-upload-button">upload files</div>' +  
             '<ul class="qq-upload-list"></ul>' +     
             '</div>', 
          action: '@Url.Action("upload", new { staffId = Model.StaffId })' 
         }); 
        </script> 

Answer 1

很簡單，

public ActionResult SaveFile(HttpPostedFileBase FileUpload) 
    {    
     string fileName = ""; 
     if (FileUpload != null && FileUpload.ContentLength > 0) 
     { 
      fileName = "123_"+ Path.GetFileName(FileUpload.FileName); 
      //rest code