base64编码HttpPostedFileBase

Question

我希望base64将正在接收的图片编码为HttpPostedFileBase，以便将其发送到json对象中，我不知道如何完成...并且请告知我如何将其解码回HttpPostedFileBase

Answer 1

我试过这个并且有效

string theFileName = Path.GetFileName(YourFile.FileName);
byte[] thePictureAsBytes = new byte[YourFile.ContentLength];
using (BinaryReader theReader = new BinaryReader(YourFile.InputStream))
                    {
                        thePictureAsBytes = theReader.ReadBytes(YourFile.ContentLength);
                    }
string thePictureDataAsString = Convert.ToBase64String(thePictureAsBytes);

Answer 2

你可以这样做：

byte[] binaryData;
  binaryData = new Byte[product.BrochureFile.InputStream.Length];
  long bytesRead = product.BrochureFile.InputStream.Read(binaryData, 0, (int)product.BrochureFile.InputStream.Length);
  product.BrochureFile.InputStream.Close();
  string base64String = System.Convert.ToBase64String(binaryData, 0, binaryData.Length);

Answer 3

按照以下步骤将HttpPostedFileBase转换为Base64String类型

  public ActionResult ParseCv(HttpPostedFileBase cvFile)
    {            
        byte[] fileInBytes = new byte[cvFile.ContentLength];
        using (BinaryReader theReader = new BinaryReader(cvFile.InputStream))
        {
            fileInBytes = theReader.ReadBytes(cvFile.ContentLength);
        }
        string fileAsString= Convert.ToBase64String(fileInBytes);
        return Content(fileAsString);
    }