C# HttpClient 4.5 多部分/表单数据上传

问题描述

有谁知道如何在 .Net 4.5 中使用 HttpClient 和 multipart/form-data 上传?

Does anyone know how to use the HttpClient in .Net 4.5 with multipart/form-data upload?

我在互联网上找不到任何示例.

I couldn't find any examples on the internet.

推荐答案

我的结果是这样的:

public static async Task<string> Upload(byte[] image)
{
     using (var client = new HttpClient())
     {
         using (var content =
             new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture)))
         {
             content.Add(new StreamContent(new MemoryStream(image)), "bilddatei", "upload.jpg");

              using (
                 var message =
                     await client.PostAsync("http://www.directupload.net/index.php?mode=upload", content))
              {
                  var input = await message.Content.ReadAsStringAsync();

                  return !string.IsNullOrWhiteSpace(input) ? Regex.Match(input, @"http://w*.directupload.net/images/d*/w*.[a-z]{3}").Value : null;
              }
          }
     }
}

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