コード例 #1
0
        /// <summary>
        /// 持久化学生机信息
        /// </summary>
        /// <param name="client"></param>
        public void AddStudent(StudentClientSummary client)
        {
            var teacherClient = TeacherClients.FirstOrDefault(p => p.TeacherCode == client.TeacherCode);

            if (teacherClient.StudentClients == null)
            {
                teacherClient.StudentClients = new List <StudentClientSummary>();
            }

            teacherClient.StudentClients.Add(client);
        }
コード例 #2
0
        /// <summary>
        /// 学生机注册
        /// </summary>
        /// <param name="registerInfo">注册信息</param>
        /// <returns></returns>
        public async Task RegisterStudent(RegisterCmdParams registerInfo)
        {
            if (registerInfo.Identity != IdentityType.Student)
            {
                throw new ArgumentException("注册信息 Identity 错误");
            }

            // 检查教师机连接是否正常
            var teacher = _clientStorage.TeacherClients.FirstOrDefault(p => p.TeacherCode == registerInfo.TeacherCode);

            if (teacher == null || !teacher.IsConnected)
            {
                var msg = $"教师机连接异常[code={registerInfo.TeacherCode}]!";
                await Clients.Client(teacher.ConnectionId).ReceiveServerError(msg);

                _logger.LogError(msg);
                throw new Exception(msg);
            }

            var ip            = Context.GetHttpContext().Connection.RemoteIpAddress.ToString();
            var clientSummary = new StudentClientSummary
            {
                Identity        = registerInfo.Identity,
                ConnectionId    = Context.ConnectionId,
                IsConnected     = true,
                RemoteIpAddress = ip,
                TeacherCode     = registerInfo.TeacherCode,
            };

            // 保存学生机信息
            _clientStorage.AddStudent(clientSummary);

            // 将学生机加入对应的教师机分组
            await Groups.AddToGroupAsync(Context.ConnectionId, clientSummary.TeacherCode);

            // 通知教师机有学生机接入,保存消息记录
            var receivers = new List <MessageReceiver>
            {
                new MessageReceiver()
                {
                    ConnectionId = teacher.ConnectionId
                }
            };
            var messageSummary = _messageHistory.SaveMessage(Context.ConnectionId, receivers, "ReceiveMessage", CommandType.StudentConnected, clientSummary);

            clientSummary.MessageId = messageSummary.Id;
            await Clients.Client(teacher.ConnectionId).ReceiveMessage(CommandType.StudentConnected, clientSummary);

            // 通知学生机注册成功,保存消息记录
            var receivers2 = new List <MessageReceiver>
            {
                new MessageReceiver()
                {
                    ConnectionId = Context.ConnectionId
                }
            };
            var messageSummary2 = _messageHistory.SaveMessage(Context.ConnectionId, receivers2, "RegisterSuccess", "RegisterSuccess", registerInfo);

            clientSummary.MessageId = messageSummary2.Id;
            await Clients.Caller.RegisterSuccess(clientSummary);
        }