/// 注册下载文件
public uint RegisteFileHttpDownload(string url, string filePath, HttpFileSessionDelegate handler = null)
{
if (string.IsNullOrEmpty(url) || (filePath == null))
{
JW.Common.Log.LogE("RegisteFileHttpDownload:Arg Error");
return(0);
}
if ((!url.Contains("http://")) && (!url.Contains("https://")))
{
url = "http://" + url;
}
HttpFileSession hf = new HttpFileSession();
hf.Url = url;
hf.DownloadFilePath = filePath;
hf.Id = _currentId++;
hf.Handler = handler;
if (hf != null && (hf.IsOver == false))
{
_httpSessions.Add(hf);
}
return(hf.Id);
}
//更新获取数据
public void Update()
{
//等待销毁
if (IsOver)
{
return;
}
if (_isError)
{
Stop();
_isOver = true;
}
if (_isOver)
{
Stop();
if (_isError)
{
if (Handler != null)
{
Handler(true, Id, true, 0.0f);
}
Handler = null;
}
else
{
if (Handler != null)
{
Handler(false, Id, true, 1.0f);
}
Handler = null;
}
//等待销毁
IsOver = true;
return;
}
//若干时间，HttpWebRequest始终没有调用回调（如果回调成功调用，_response等三个对象不会为空），就结束当前下载任务。
if (_response == null || _responseStream == null || _fileStream == null)
{
_waitedAsyn += 50;
if (_waitedAsyn >= TimeOut * 3)
{
Debug.Log("等待响应超时！");
_isError = true;
_isOver = true;
}
return;
}
//
int readSize = 0;
bool isException = false;
try
{
readSize = _responseStream.Read(_buff, 0, BuffLen);
}
catch (Exception ex)
{
Log.LogE("HttpFileSession Read Exception :" + ex.Message);
isException = true;
}
finally
{
if (isException)
{
_isError = true;
}
else
{
if (readSize > 0)
{
_fileStream.Write(_buff, 0, readSize);
//
_curDownloadLength += readSize;
float progress = (float)_curDownloadLength / _totalFileLength;
//JW.Common.Log.LogD("FileHttpSession:Downloaded:"+_curDownloadLength+":"+_totalFileLength);
if (Handler != null)
{
Handler(false, Id, false, progress);
}
//下载完成
if (_curDownloadLength >= _totalFileLength)
{
_isOver = true;
if (_fileStream != null)
{
_fileStream.Close();
_fileStream.Dispose();
_fileStream = null;
//移动文件
JW.Res.FileUtil.CopyFile(_tempDownLoadFilePath, DownloadFilePath, true);
//删除临时文件
JW.Res.FileUtil.DeleteFile(_tempDownLoadFilePath);
}
}
}
else
{
JW.Common.Log.LogD("FileHttpSession:Downloaded End");
////下载完成
if (_curDownloadLength >= _totalFileLength)
{
_isOver = true;
if (_fileStream != null)
{
_fileStream.Close();
_fileStream = null;
//移动文件
JW.Res.FileUtil.CopyFile(_tempDownLoadFilePath, DownloadFilePath, true);
//删除临时文件
JW.Res.FileUtil.DeleteFile(_tempDownLoadFilePath);
}
}
else
{
_isOver = true;
_isError = true;
}
}
}
}
}
