private void AUDPRecieve(IAsyncResult iar)
{
UDPState state = (UDPState)iar.AsyncState;
Socket mySocket = state.workSocket;
int dataLength = mySocket.EndReceiveFrom(iar, ref state.endPoint);
state.data = Encoding.ASCII.GetString(state.buffer, 0, dataLength);
System.Console.WriteLine(state.endPoint.ToString() + " say :" + state.data);
recieveDone.Set();
}
public void ConnectServer()
{
string sendData = "Hello Server......";
byte[] sendBuffer = new byte[1024];
sendBuffer = Encoding.ASCII.GetBytes(sendData);
clientSocket.BeginSendTo(sendBuffer, 0, sendBuffer.Length, 0, (EndPoint)endPoint, new AsyncCallback(AUDPSend), clientSocket);
sendDone.WaitOne();
UDPState state = new UDPState();
state.workSocket = clientSocket;
state.endPoint = (EndPoint)(new IPEndPoint(IPAddress.Parse("0.0.0.0"), 0));
clientSocket.BeginReceiveFrom(state.buffer, 0, state.BufferSize(), 0, ref state.endPoint, new AsyncCallback(AUDPRecieve), state);
recieveDone.WaitOne();
sendDone.Reset();
string sendData2 = "END";
byte[] sendBuffer2 = new byte[1024];
sendBuffer2 = Encoding.ASCII.GetBytes(sendData2);
clientSocket.BeginSendTo(sendBuffer2, 0, sendBuffer2.Length, 0, (EndPoint)endPoint, new AsyncCallback(AUDPSend), clientSocket);
sendDone.WaitOne();
}
public void StartServer()
{
serverSocket.Bind(endPoint);
System.Console.WriteLine("服务器开启，等待数据.........");
startTime = DateTime.Now;
UDPState state = new UDPState();
state.workSocket = serverSocket;
state.endPoint = (EndPoint)remoteEndPoint;
serverSocket.BeginReceiveFrom(state.buffer, 0, state.BufferSize(), 0, ref state.endPoint, new AsyncCallback(AUDPRecieve), state);
recieveDone.WaitOne();
string sendData = "I Have Got It!";
byte[] sendBuffer = new byte[1024];
sendBuffer = Encoding.ASCII.GetBytes(sendData);
serverSocket.BeginSendTo(sendBuffer, 0, sendBuffer.Length, 0, state.endPoint, new AsyncCallback(AUDPSend), serverSocket);
sendDone.WaitOne();
state = new UDPState();
recieveDone.Reset();
state.workSocket = serverSocket;
state.endPoint = (EndPoint)remoteEndPoint;
serverSocket.BeginReceiveFrom(state.buffer, 0, state.BufferSize(), 0, ref state.endPoint, new AsyncCallback(AUDPRecieve), state);
recieveDone.WaitOne();
endTime = DateTime.Now;
TimeSpan span = endTime - startTime;
System.Console.WriteLine("通信结束..........");
System.Console.WriteLine("使用时间（微秒）:" + span.TotalMilliseconds);
}