响应状态代码 400:Bad 请求，因为发布的数据量很大 (httpclient)

Question

我正在通过 httpclient 向网络服务方法发送一个包含文件和字符串的表单，如下所示：

using (FileStream fs = File.Open(FileFullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
        {
            using (var client = new HttpClient(new HttpClientHandler { UseProxy = false, Proxy = null }))
            {
                using (var formData = new MultipartFormDataContent())
                {
                    client.Timeout = TimeSpan.FromMilliseconds(Timeout.Infinite);
                    //client.MaxResponseContentBufferSize = fs.Length;

                    HttpContent TokenContent = new StringContent(Token);
                    HttpContent fileStreamContent = new StreamContent(fs);

                    formData.Add(TokenContent, "Token");
                    formData.Add(fileStreamContent, Key, currentFile);

                    var response = await client.PostAsync(WebServiceOfServer, formData).ConfigureAwait(false);

                    // equivalent of pressing the submit button on the form
                    if (!response.IsSuccessStatusCode)
                    {
                        result = null;
                    }
                    else
                    {
                        result = response.Content.ReadAsStreamAsync().Result;
                        return true;
                    }
                }
            }
        }

但是在发送大于2GB的文件时，响应状态码是400， BadRequest 句原因。我设置了 client.MaxResponseContentBufferSize=fs.Length 并且 fs.Length 大于 2GB 并且它 returns 内部异常错误与此消息：
"Buffering more than 2147483647 bytes is not supported.\r\nParameter name: value\r\nActual value was 2380364657." 那？在 web.config 中，我使用了以下代码：

<httpRuntime maxRequestLength="3145728" requestLengthDiskThreshold="3145728" targetFramework="4.5.1" requestValidationMode="2.0" executionTimeout="999999"/>

和

<requestLimits maxAllowedContentLength="3221225472"/>

发送其他小于2GB的文件是没有问题的。
我该如何解决我的问题？

Answer 1

正如下面的链接，答案是：如果你想通过 POST 发送一个大小大于 2GB 的文件，你必须使用拆分然后发送文件片段。 https://forums.asp.net/t/2124827.aspx?Response+Status+code+400+Bad+Request+because+of+posting+data+with+large+size+httpclient+
和
https://www.codeproject.com/Articles/43272/Uploading-Large-Files-Through-Web-Service

响应状态代码 400:Bad 请求，因为发布的数据量很大 (httpclient)

Response Status code 400:Bad Request because of posting data with large size (httpclient)

.net

c#

asp.net

async-await

dotnet-httpclient