c# 后台post,包含file文件

http request 相关

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private bool Upload(KeyValuePair<string, string>[] paramString,Stream paramFileStream)
{
    var actionUrl = $"{_websiteUrl}/********";
 
    byte[] paramFileBytes = new byte[paramFileStream.Length];
    paramFileStream.Read(paramFileBytes, 0, paramFileBytes.Length);
    // 设置当前流的位置为流的开始
    paramFileStream.Seek(0, SeekOrigin.Begin);
    Func<Task<bool>> task = async () =>
    {
        using (var client = CreateHttpClient())
        {
            using (var formData = new MultipartFormDataContent())
            {
 
                foreach (var keyValuePair in paramString)
                {
                    formData.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);
                }
                //var fileContent = new ByteArrayContent(paramFileBytes);
                HttpContent fileStreamContent = new StreamContent(paramFileStream);
                fileStreamContent.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("form-data")
                {
                    Name = "files",
                    Size = 1,
                    FileName = "201809.xlsx"
                };
                fileStreamContent.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
                //formData.Add(fileContent, "files");
                formData.Add( fileStreamContent, "files", "201809.xlsx");
                client.DefaultRequestHeaders.Add("UserToken", _clientAuth.GetToken());
                var respMessage = await client.PostAsync(FixUrl(actionUrl), formData).ConfigureAwait(false);
                if (!respMessage.IsSuccessStatusCode)
                {
                    return false;
                }
                //respMessage.EnsureSuccessStatusCode();
                Byte[] rawBytes = await respMessage.Content.ReadAsByteArrayAsync().ConfigureAwait(false);
                var content = ClientEncoding.GetString(rawBytes, 0, rawBytes.Length);
                return true;
            }
        }
    };
    return RunSync(task);
}   

 

相关方法

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public static TResult RunSync<TResult>(Func<Task<TResult>> func, bool await = false)
{
    CultureInfo cultureUi = CultureInfo.CurrentUICulture;
    CultureInfo culture = CultureInfo.CurrentCulture;
    return _myTaskFactory.StartNew<Task<TResult>>(delegate
    {
        Thread.CurrentThread.CurrentCulture = culture;
        Thread.CurrentThread.CurrentUICulture = cultureUi;
        return func();
    }).Unwrap<TResult>().ConfigureAwait(await).GetAwaiter().GetResult();
}

  

posted @   PanPan003  阅读(2208)  评论(0编辑  收藏  举报
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