Question

C#的tcpClient的Connect连接超时问题。

用tcpclient的Connect连接服务器时如何设置连接超时的时间？在若干时间后抛出异常？

Answer 1

class TimeOutSocket
{
privatestaticbool IsConnectionSuccessful = false;
privatestatic Exception socketexception;
privatestatic ManualResetEvent TimeoutObject = new ManualResetEvent(false);
publicstatic TcpClient TryConnect(IPEndPoint remoteEndPoint, int timeoutMiliSecond)
{
TimeoutObject.Reset();
socketexception = null;
string serverip = Convert.ToString(remoteEndPoint.Address);
int serverport = remoteEndPoint.Port;
TcpClient tcpclient = new TcpClient();
tcpclient.BeginConnect(serverip, serverport,
new AsyncCallback(CallBackMethod), tcpclient);
if (TimeoutObject.WaitOne(timeoutMiliSecond, false))
{
if (IsConnectionSuccessful)
{
return tcpclient;
}
else
{
throw socketexception;
}
}
else
{
tcpclient.Close();
thrownew TimeoutException("TimeOut Exception");
}
}
privatestaticvoid CallBackMethod(IAsyncResult asyncresult)
{
try
{
IsConnectionSuccessful = false;
TcpClient tcpclient = asyncresult.AsyncState as TcpClient;
if (tcpclient.Client != null)
{
tcpclient.EndConnect(asyncresult);
IsConnectionSuccessful = true;
}
}
catch (Exception ex)
{
IsConnectionSuccessful = false;
socketexception = ex;
}
finally
{
TimeoutObject.Set();
}
}
}

Answer 2

tcpClient.ReceiveTimeout=毫秒超时时间,接受数据超时设置
tcpClient.SendTimeout=毫秒超时时间,发送数据超时时间

追问

这个貌似是接收数据和发送数据的等待时间，而不是连接等待时间