/// <summary>
/// UDP发送
/// </summary>
/// <param name="ip">IP</param>
/// <param name="port">端口</param>
/// <param name="data">发送内容</param>
public void Send(string ip, int port, string data)
{
try
{
IPEndPoint sendEP = new IPEndPoint(IPAddress.Parse(ip), port);
UdpClient udpSend = new UdpClient();
UdpState udpSendState = new UdpState();
udpSendState.ipEndPoint = sendEP;
udpSend.Connect(udpSendState.ipEndPoint);
udpSendState.udpClient = udpSend;
Byte[] sendBytes = Encoding.GetEncoding("UTF-8").GetBytes(data);
udpSend.BeginSend(sendBytes, sendBytes.Length, new AsyncCallback(SendCallback), udpSendState);
}
catch
{
}
}
/// <summary>
/// UDPServer初始化
/// </summary>
/// <param name="listenPort">监听端口</param>
/// <returns></returns>
public bool InitUDPServer(int serverPort)
{
try
{
//UDP初始化
ipEndPoint = new IPEndPoint(IPAddress.Any, serverPort);
udpReceive = new UdpClient(ipEndPoint);
udpReceiveState = new UdpState();
udpReceiveState.udpClient = udpReceive;
udpReceiveState.ipEndPoint = ipEndPoint;
//异步回调
udpReceive.BeginReceive(new AsyncCallback(ReceiveCallback), udpReceiveState);
return(true);
}
catch
{
return(false);
}
}
/// <summary>
/// UDP发送
/// </summary>
/// <param name="ip">IP</param>
/// <param name="port">端口</param>
/// <param name="data">发送内容</param>
public void Send(string ip, int port, string data)
{
try
{
IPEndPoint sendEP = new IPEndPoint(IPAddress.Parse(ip), port);
UdpClient udpSend = new UdpClient();
UdpState udpSendState = new UdpState();
udpSendState.ipEndPoint = sendEP;
udpSend.Connect(udpSendState.ipEndPoint);
udpSendState.udpClient = udpSend;
Byte[] sendBytes = Encoding.GetEncoding("UTF-8").GetBytes(data);
udpSend.BeginSend(sendBytes, sendBytes.Length, new AsyncCallback(SendCallback), udpSendState);
}
catch
{
}
}
/// <summary>
/// UDPServer初始化
/// </summary>
/// <param name="listenPort">监听端口</param>
/// <returns></returns>
public bool InitUDPServer(int serverPort)
{
try
{
//UDP初始化
ipEndPoint = new IPEndPoint(IPAddress.Any, serverPort);
udpReceive = new UdpClient(ipEndPoint);
udpReceiveState = new UdpState();
udpReceiveState.udpClient = udpReceive;
udpReceiveState.ipEndPoint = ipEndPoint;
//异步回调
udpReceive.BeginReceive(new AsyncCallback(ReceiveCallback), udpReceiveState);
return true;
}
catch
{
return false;
}
}
// 接收回调函数
private void ReceiveCallback(IAsyncResult iar)
{
try
{
UdpState udpReceiveState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Byte[] receiveBytes = udpReceiveState.udpClient.EndReceive(iar, ref udpReceiveState.ipEndPoint);
string receiveString = Encoding.GetEncoding("UTF-8").GetString(receiveBytes);
if (OnDataIn != null)
{
OnDataIn(udpReceiveState.ipEndPoint.Address.ToString(), receiveString);
}
}
}
catch
{
}
finally
{
udpReceive.BeginReceive(new AsyncCallback(ReceiveCallback), udpReceiveState);
}
}
// 发送回调函数
private void SendCallback(IAsyncResult iar)
{
UdpState udpState = iar.AsyncState as UdpState;
}