/// <summary>
/// 指定远程地址和本地文件绝对路径将文件传输到远程计算机
/// </summary>
/// <param name="filePath">本地文件的绝对路径</param>
/// <param name="url">远程地址</param>
/// <param name="listener">本次上传任务的监听器</param>
/// <returns>返回0表示任务启动成功</returns>
public int Upload(String filePath, String url, FileTransferListener listener)
{
int id = m_maxID++;
m_runningWork.Add(id, filePath);
m_listeners.Add(id, listener);
Thread thread = new Thread(new ParameterizedThreadStart(MultithreadUploadWork));
thread.Name = "" + id;
object[] obj = { id, url };
thread.Start(obj);
return(0);
}
/// <summary>
/// 多线程文件上传方法
/// </summary>
/// <param name="param">呼叫方法的参数,其实际值为{任务id,上传url}</param>
public void MultithreadUploadWork(object param)
{
object[] obj = (object[])param;
int id = (int)obj[0];
String url = (String)obj[1];
String filePath = m_runningWork[id];
FileTransferListener listener = m_listeners[id];
HttpWebRequest request = null;
Stream reader = null;
HttpWebResponse response = null;
FileStream fs = null;
try
{
fs = new FileStream(filePath, FileMode.Open);
request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/octet-stream";
byte[] buffer = new byte[10240];
long currentLength = 0;
long totalLength = fs.Length;
request.ContentLength = totalLength;
Stream writer = request.GetRequestStream();
while (true)
{
int len = fs.Read(buffer, 0, 10240);
writer.Write(buffer, 0, len);
if (listener != null)
{
listener.OnFileTransfer(id, totalLength, currentLength, 0, null);
}
currentLength += len;
if (len <= 0)
{
break;
}
}
writer.Close();
response = (HttpWebResponse)request.GetResponse();
reader = response.GetResponseStream();
long contentLength = response.ContentLength;
byte[] recvDatas = new byte[contentLength];
reader.Read(recvDatas, 0, (int)contentLength);
if (listener != null)
{
listener.OnFileTransfer(id, totalLength, currentLength, 0, null);
}
}
catch (Exception ex)
{
if (listener != null)
{
listener.OnFileTransfer(id, 0, 0, 3, ex.Message);
}
}
finally
{
if (fs != null)
{
fs.Dispose();
}
if (response != null)
{
response.Close();
}
if (reader != null)
{
reader.Close();
}
}
}
