問題描述

我正在嘗試使用 ajax 請求使用 aspnet 核心上傳文件.在以前版本的 .net 中，我曾經使用

I am trying to upload files using aspnet core using ajax request . In previous versions of .net i used to handle this using

 foreach (string fileName in Request.Files)
            {
                HttpPostedFileBase file = Request.Files[fileName];
                //Save file content goes here

                fName = file.FileName;
     (...)

但現在它在 request.files 處顯示錯誤我怎樣才能讓它工作?搜了一下發現httppostedfile已經改成了iformfile但是request.files怎么處理呢?

but now its showing error at request.files how can i get it to work ? i searched and found that httppostedfile has been changed to iformfile but how to handle request.files?

推薦答案

這是來自最近項目的工作代碼.數據已從 Request.Files 移至 Request.Form.Files.如果您需要將流轉換為字節數組 - 這是唯一對我有用的實現.其他人會返回空數組.

This is working code from a recent project. Data has been moved from Request.Files to Request.Form.Files. In case you need to convert stream to byte array - this is the only implementation that worked for me. Others would return empty array.

using System.IO;
var filePath = Path.GetTempFileName();
foreach (var formFile in Request.Form.Files)
{
   if (formFile.Length > 0)
   {
      using (var inputStream = new FileStream(filePath, FileMode.Create))
      {
         // read file to stream
         await formFile.CopyToAsync(inputStream);
         // stream to byte array
         byte[] array = new byte[inputStream.Length];
         inputStream.Seek(0, SeekOrigin.Begin);
         inputStream.Read(array, 0, array.Length);
         // get file name
         string fName = formFile.FileName;
      }
   }
}

這篇關于ASP.NET CORE 中的 Request.Files的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！