public DownloadProgressEventArgs(double curSize, double speed, uint remainTime, uint spanTime, eDownloadSta sta)
{
CurrentSize = curSize;
Speed = speed;
RemainTime = remainTime;
SpanTime = spanTime;
State = sta;
}
string mHttpUrl = ""; //http下载路径
//务必使用此函数初始化，因为定时器需要再主类创建
public HttpHelper(System.Timers.Timer _timer)
{
if (mTimer == null)
{
mTimer = _timer;
mTimer.Interval = TIMER_TICK;
mTimer.Stop();
mTimer.Elapsed += new System.Timers.ElapsedEventHandler(tickEventHandler); //到达时间的时候执行事件；
mTimer.AutoReset = true; //设置重复执行(true)；
mTimer.Enabled = true; //设置执行tickEventHandler事件
}
init();
mCurDownloadSta = eDownloadSta.STA_FINISH;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
System.Net.ServicePointManager.ServerCertificateValidationCallback +=
delegate(object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate,
System.Security.Cryptography.X509Certificates.X509Chain chain,
System.Net.Security.SslPolicyErrors sslPolicyErrors)
{
return(true); // **** Always accept
};
}
/// <summary>
/// 开始下载
/// </summary>
/// <param name="url">下载url</param>
/// <param name="fileName">保存文件名</param>
public void download(string url, string fileName)
{
if (mCurDownloadSta == eDownloadSta.STA_ING)
{
Console.WriteLine("url:{0} is downloading...", url);
return;
}
if (mHttpUrl != url)//新的下载文件要重新计数
{
init();
}
else
{
FullSize = 0.0;
DownloadedSize = 0.0;
LengthInOneSecond = 0.0;
RemainTime = 0;
}
mHttpUrl = url;
mSaveFileName = fileName;
if (fileName.Length < 1)
{
mSaveFileName = Directory.GetCurrentDirectory() + Path.GetFileName(url);
}
mCurDownloadSta = eDownloadSta.STA_START;
//Task.Run(() =>
//{
//});
mTimer.Start();
mCurDownloadSta = eDownloadSta.STA_ING;
Console.WriteLine("start download:");
int ret = -1;
try
{
ret = dowLoadFile();
}
catch (Exception e)
{
ret = -100;
Console.WriteLine("dowload err, err:" + e.Message);
ErrorHappend?.Invoke(this, new UnhandledExceptionEventArgs(e, false));
}
mCurDownloadSta = eDownloadSta.STA_FINISH;
mTimer.Stop();
if (ret < 0)
{
Progress?.Invoke(this, new DownloadProgressEventArgs(FullSize, FullSize, 0, 0, eDownloadSta.STA_ERR));
}
else if (ret == 0)
{
Progress?.Invoke(this, new DownloadProgressEventArgs(FullSize, FullSize, 0, 0, eDownloadSta.STA_FINISH));
}
else
{
Progress?.Invoke(this, new DownloadProgressEventArgs(DownloadedSize, Speed, RemainTime, TotalTime, eDownloadSta.STA_FINISH));
}
}
//停止下载
public void downloadStop()
{
mCurDownloadSta = eDownloadSta.STA_STOP;
mTimer.Stop();
}
