我想通过 BackgroundTransferService
将文件(VideoFile)上传到服务器。
我的问题是,我还想与文件(POST请求)一起发送2个参数。
因此,在使用BackgroundTransferService
API时是否可以将参数与文件上传一起发送?
带有BackgroundTransferService
的代码: BackgroundTransferRequest req = new BackgroundTransferRequest(new Uri("ServerURL", UriKind.Absolute));
req.Method = "POST";
req.TransferPreferences = TransferPreferences.AllowCellularAndBattery;
string uploadLocationPath = "/Shared/Transfers/myVideoFile.mp4";
string downloadLocationPath = "/Shared/Transfers/response.txt";
req.UploadLocation = new Uri(uploadLocationPath, UriKind.Relative);
req.DownloadLocation = new Uri(downloadLocationPath, UriKind.Relative);
req.TransferProgressChanged += req_TransferProgressChanged;
req.TransferStatusChanged += req_TransferStatusChanged;
try
{
BackgroundTransferService.Add(req);
}
catch (Exception ex)
{
MessageBox.Show("Unable to add video to upload queue.\nPlease try again later.", App.appName, MessageBoxButton.OK);
}
请询问是否有人需要更多信息并且无法理解我的问题。
我想快速回应。是或否。如果是,则如何..?
最佳答案
几周前我遇到了类似的问题。我以某种方式通过HttpClient
管理了此文件上传。
验证码
HttpClient client = new HttpClient();
StorageFile file = null; // assign your file here
MultipartFormDataContent formdata = new MultipartFormDataContent();
formdata.Add(new StringContent("value"), "key");
formdata.Add(new StreamContent(await file.OpenStreamForReadAsync()), "file", "recordedVideoFile2.mp4");
var response = await client.PostAsync(new Uri("URL here"), formdata);
关于c# - 带有POST方法和参数的BackgroundTransferService,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/30048147/