//获取所有在线用户的信息
private void GetP2PInfo()
{
IList <UserIDEndPoint> userInfoList = Common.TcpConn.SendReceiveObject <IList <UserIDEndPoint> >("GetP2PInfo", "ResP2pInfo", 5000, "GetP2P");
foreach (UserIDEndPoint userInfo in userInfoList)
{
try
{
if (userInfo.UserID != Common.CurrentUser.ID)
{
ConnectionInfo connInfo = new ConnectionInfo(userInfo.IPAddress, userInfo.Port);
Connection newTcpConnection = TCPConnection.GetConnection(connInfo);
Common.AddUserConn(userInfo.UserID, newTcpConnection);
SetUpP2PContract contract = new SetUpP2PContract();
contract.UserID = Common.CurrentUser.ID;
//P2p通道打通后，发送一个消息给对方用户，以便于对方用户收到消息后，建立P2P通道
newTcpConnection.SendObject("SetupP2PMessage", contract);
}
}
catch
{
}
}
}
//收到创建P2P通道的消息
private void IncomingSetupP2PMessage(PacketHeader header, Connection connection, SetUpP2PContract contract)
{
//如果还没有P2P通道，则创建之
if (!Common.ContainsUserConn(contract.UserID))
{
Common.AddUserConn(contract.UserID, connection);
}
}
//收到创建P2P通道的消息
private void IncomingSetupP2PMessage(PacketHeader header, Connection connection, SetUpP2PContract contract)
{
//如果还没有P2P通道，则创建之
if (!Common.ContainsUserConn(contract.UserID))
{
Common.AddUserConn(contract.UserID, connection);
}
LogInfo.LogMessage("收到P2P创建连接消息" + "本地端口是：" + connection.ConnectionInfo.LocalEndPoint.Port.ToString(), "P2PInfo");
}