/// <summary>
        /// 接受处理回调
        /// </summary>
        /// <param name="e">操作对象</param>
        private void ProcessReceive(SocketAsyncEventArgs e)
        {
            AsyncUserToken userToken = (AsyncUserToken)e.UserToken;

            int offset = userToken.ReceiveEventArgs.Offset;
            int count  = userToken.ReceiveEventArgs.BytesTransferred;

            int endOffset = offset + count;

            byte[] Buffer = userToken.ReceiveEventArgs.Buffer;

            if (count > 0 && userToken.ReceiveEventArgs.SocketError == SocketError.Success)
            {
                Interlocked.Add(ref TotalBytesRead, (uint)e.BytesTransferred);
                try
                {
                    Block        block        = new Block(Buffer, offset);
                    BaseProtocol baseProtocol = new BaseProtocol();
                    do
                    {
                        baseProtocol.Analyze(block);
                        if (baseProtocol.PacketId == 0)
                        {
                            if (baseProtocol.PacketSize > 3)
                            {
                                if (userToken.StartLogin)
                                {
                                    Login login = baseProtocol.Resolve <Login>();
                                    if (Program.WhiteList)
                                    {
                                        UserModel userModel = databaseManager.FindPlayer(login.Name);
                                        if (userModel == null)
                                        {
                                            userToken.Kick(Program.NoFind);
                                            break;
                                        }
                                        else
                                        {
                                            if (userModel.End_at < DateTime.Now)
                                            {
                                                userToken.Kick(Program.IsEnd);
                                                break;
                                            }
                                        }
                                        userToken.EndTime = userModel.End_at;
                                    }
                                    userToken.Tunnel(this);
                                    userToken.PlayerName = login.Name;
                                    userToken.tunnel.Login(login.Name, userToken.ProtocolVersion, userToken.IsForge);
                                    Online.Add(userToken.PlayerName, userToken);
                                }
                                else
                                {
                                    Handshake handshake = baseProtocol.Resolve <Handshake>();
                                    userToken.ProtocolVersion = handshake.ProtocolVersion;
                                    if (handshake.NextState == NextState.login)
                                    {
                                        if (handshake.ServerAddress.IndexOf("FML") > 0)
                                        {
                                            userToken.IsForge = true;
                                        }
                                        userToken.StartLogin = true;
                                    }
                                    else
                                    {
                                        userToken.StartLogin = false;
                                    }
                                }
                            }
                            else
                            {
                                // 开始处理本次收到的数据包
                                SocketAsyncEventArgs sendPacket = new SocketAsyncEventArgs();
                                Response             response   = new Response("1.8.9", userToken.ProtocolVersion);
                                response.players.online   = Online.Count;
                                response.players.max      = Program.MaxConnections;
                                response.players.sample   = new List <SampleItem>();
                                response.description.text = Program.QueryConfig.Motd;
                                response.favicon          = "";

                                using (Block temp = new Block())
                                {
                                    temp.WriteInt(0);
                                    temp.WriteString(JsonSerializer.Serialize(response), true);
                                    byte[] buffer = temp.GetBytes();
                                    using (MemoryStream memoryStream = new MemoryStream())
                                    {
                                        memoryStream.WriteInt(buffer.Length);
                                        memoryStream.Write(buffer);
                                        sendPacket.SetBuffer(memoryStream.GetBuffer(), 0, (int)memoryStream.Position);
                                        userToken.ServerSocket.SendAsync(sendPacket);
                                    }
                                    // Console.Out.WriteLine("New player.");
                                }
                            }
                        }
                        else if (baseProtocol.PacketId == 1)
                        {
                            SocketAsyncEventArgs sendPacket = new SocketAsyncEventArgs();
                            Pong pong = baseProtocol.Resolve <Pong>();
                            using (Block temp = new Block())
                            {
                                temp.WriteInt(1);
                                temp.WriteLong(pong.Payload);
                                byte[] buffer = temp.GetBytes();
                                using (MemoryStream memoryStream = new MemoryStream())
                                {
                                    memoryStream.WriteInt(buffer.Length);
                                    memoryStream.Write(buffer);
                                    sendPacket.SetBuffer(memoryStream.GetBuffer(), 0, (int)memoryStream.Position);
                                }
                                // Console.Out.WriteLine("New Ping.");
                                userToken.ServerSocket.SendAsync(sendPacket);
                            }
                        }
                    } while (baseProtocol.block.step < endOffset);
                }

                catch (Exception ex)
                {
                }
                // 准备下次接收数据
                bool willRaiseEvent = userToken.ServerSocket.ReceiveAsync(userToken.ReceiveEventArgs); //投递接收请求
                if (!willRaiseEvent)
                {
                    ProcessReceive(userToken.ReceiveEventArgs);
                }
            }
            else
            {
                CloseClientSocket(e);
            }
        }