/// <summary>
/// 开始下载
/// </summary>
public void StartDownload(string mainWin = "MainDialog")
{
IsDownloading = true;
DownloadProgressDialogVM downloadProgressDialogVM = new DownloadProgressDialogVM("");
//显示 等待窗
var view = new DownloadProgressDialog
{
DataContext = downloadProgressDialogVM
};
//1.等待窗 (2.执行下载, 3.关闭 等待)
var result = DialogHostEx.ShowDialog(GlobalUser.MainWin, view, ExtendedOpenedEventHandler, ExtendedClosingEventHandler);
//view.DownloadingSpeedText.Text = "正在下载试题，已完成 100%";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(this.DownloadUrl);
if (DownloadBytes > 0)
{
request.AddRange(DownloadBytes);
}
request.BeginGetResponse(ar =>
{
var response = request.EndGetResponse(ar);
if (this.TotalBytes == 0)
{
this.TotalBytes = response.ContentLength;
}
using (var writer = new FileStream(this.FileName, FileMode.OpenOrCreate))
{
using (var stream = response.GetResponseStream())
{
while (IsDownloading)
{
byte[] data = new byte[readBytes];
int readNumber = stream.Read(data, 0, data.Length);
if (readNumber > 0)
{
writer.Write(data, 0, readNumber);
DownloadBytes += readNumber;
}
int downloadingSpeed = Convert.ToInt32((DownloadBytes * 100 / TotalBytes));
downloadProgressDialogVM.DownloadingSpeedText = $"正在下载试题，已完成 {downloadingSpeed}%";
downloadProgressDialogVM.DownloadingSpeed = downloadingSpeed == 100.00d ? 99.99d : downloadingSpeed;
downloadProgressDialogVM.DownloadingSpeedVisibility = downloadingSpeed > 1.00f ? Visibility.Visible : Visibility.Hidden;
if (DownloadBytes == TotalBytes)
{
break;
}
}
}
}
Complete();
}, null);
}
/// <summary>
/// 开始下载
/// </summary>
public void StartDownload(Dictionary <string, string> _aduioFileDic, string savePath,
string mainWin = "MainDialog")
{
int d_count = 0;
string d_url = ""; //下载 路径
string s_url = ""; //保存路径
IsDownloading = true;
DownloadProgressDialogVM downloadProgressDialogVM = new DownloadProgressDialogVM("");
//显示 等待窗
var view = new DownloadProgressDialog
{
DataContext = downloadProgressDialogVM
};
//1.等待窗 (2.执行下载, 3.关闭 等待)
var result = DialogHostEx.ShowDialog(GlobalUser.MainWin, view, ExtendedOpenedEventHandler,
ExtendedClosingEventHandler);
//view.DownloadingSpeedText.Text = "正在下载试题，已完成 100%";
Application.Current.Dispatcher.Invoke(new Action(() =>
{
for (int i = 0; i < _aduioFileDic.Keys.Count; i++)
{
d_url = $"{WebApiProxy.MEDIAURL}{_aduioFileDic[_aduioFileDic.Keys.ToList()[i]]}";
s_url = Path.Combine(savePath,
SecurityHelper.HmacMd5Encrypt(Path.GetFileNameWithoutExtension(d_url), GlobalUser.FILEPWD,
Encoding.UTF8)
.ToLower() + ".qf");
downloadProgressDialogVM.DownloadingCount =
Convert.ToInt32(((i + 1) / _aduioFileDic.Keys.Count) * 100);
downloadProgressDialogVM.DownloadingCountText = $"总进度 {(i + 1)}/{_aduioFileDic.Keys.Count}";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(d_url);
//if (DownloadBytes > 0)
//{
// request.AddRange(DownloadBytes);
//}
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//var response = request.EndGetResponse(ar);
DownloadBytes = TotalBytes = 0;
if (this.TotalBytes == 0)
{
this.TotalBytes = response.ContentLength;
}
using (var writer = new MemoryStream())
{
using (var stream = response.GetResponseStream())
{
while (DownloadBytes != TotalBytes)
{
byte[] data = new byte[readBytes];
int readNumber = stream.Read(data, 0, data.Length);
if (readNumber > 0)
{
writer.Write(data, 0, readNumber);
DownloadBytes += readNumber;
}
int downloadingSpeed = Convert.ToInt32((DownloadBytes * 100 / TotalBytes));
downloadProgressDialogVM.DownloadingSpeedText = $"当前 {downloadingSpeed}%";
downloadProgressDialogVM.DownloadingSpeed =
downloadingSpeed == 100.00d ? 99.99d : downloadingSpeed;
downloadProgressDialogVM.DownloadingSpeedVisibility =
downloadingSpeed > 1.00f ? Visibility.Visible : Visibility.Hidden;
}
}
if (DownloadBytes == TotalBytes)
{
// Set the position to the beginning of the stream.
writer.Seek(0, SeekOrigin.Begin);
FileSecretHelper.EncryptFileBybt(writer, s_url);
d_count++;
if (d_count == _aduioFileDic.Keys.Count)
{
Complete();
}
}
}
}
}));
}
