/// <summary>
        /// 向web 上报事件
        /// </summary>
        public void sendMsgToWebSocketClients(string strEventTheOne, string msg)
        {
            //发送数据Json格式
            string strSendMSG = jscontrol.EventJson(strEventTheOne);

            Mainform.form1.SendMsgToWebSocketClients(strSendMSG);
            //更新UI界面
            StaticUtils.ShowEventMsg(msg);
            //计数加一
            StaticData.g_inAlarmNum++;
        }
        /// <summary>
        /// 轮询获取 DB 中App端上报的event
        /// </summary>
        public void PollForAppEvent()
        {
            /// Design:服务器维护一个关于Event_assemble的DataTable
            /// 每次轮询更新DataTable ,find a new record and then send a message to clients by websocket;
            /// Point : if there are many new records found, consist them and the split is signal ','.
            InitEventTable();
            MyJsonCtrl jscontrol = new MyJsonCtrl();

            while (true)
            {
                refreshEventTable();
                string        theones     = "";
                List <string> warning_msg = new List <string>();
                //StaticUtils.ShowEventMsg(Convert.ToString(last_PollForAppEvent_time)  +"    "+ StaticData.g_dtEventAssemble.Rows.Count+"\n");
                if (StaticData.g_dtEventAssemble.Rows.Count > 0)
                {
                    for (int i = 0; i < StaticData.g_dtEventAssemble.Rows.Count; i++)
                    {
                        if (i == StaticData.g_dtEventAssemble.Rows.Count - 1)
                        {
                            theones += StaticData.g_dtEventAssemble.Rows[i]["事件theone"];
                        }
                        else
                        {
                            theones += StaticData.g_dtEventAssemble.Rows[i]["事件theone"] + ",";
                        }
                        warning_msg.Add("报警时间:" + StaticData.g_dtEventAssemble.Rows[i]["时间"] + "  事件类型:App故障事件上报  事件名称:" + StaticData.g_dtEventAssemble.Rows[i]["事件名称"] + "\n");
                    }
                    if (!"".Equals(theones))
                    {
                        //发送数据Json格式
                        string strSendMSG = jscontrol.EventJson(theones);
                        Mainform.form1.SendMsgToWebSocketClients(strSendMSG);
                        foreach (var item in warning_msg)
                        {
                            //更新UI界面
                            StaticUtils.ShowEventMsg(item);
                            //计数加一
                            StaticData.g_inAlarmNum++;
                        }
                    }
                }
                Thread.Sleep(5 * 1000);    //   APP轮询
            }
        }
        //读取事件数据库,判断数据库是否存在该事件,且时间是否2分钟以上才再次触发,存在且是的话插入新事件
        //不是的话更新endtime字段为当前时间
        //不存在的话直接插入数据
        private void CheckEvent(string strDevice, string strTarget_theone, string strEvent, string strTime, string strPosition, string srtCameraName, string[] paras, string channelName)
        {
            //事件比较特殊,可有可能同时都会调用,所以这里每次调用的时候,都新建一个数据库的conn
            DBConnect dbCheck   = new DBConnect();
            DBConnect dbInsORUp = new DBConnect();

            string[] strReadDB = new string[] { };
            try
            {
                //判断数据库状态并打开数据库连接
                if (dbCheck.msConn.State == System.Data.ConnectionState.Closed)
                {
                    dbCheck.msConn.Open();
                }
                if (dbInsORUp.msConn.State == System.Data.ConnectionState.Closed)
                {
                    dbInsORUp.msConn.Open();
                }
                // string strCMD = "select theone,event,endtime  from event;";
                string strCMD = "select end_time from event_assemble where target_theone='" + strTarget_theone + "' ORDER BY id DESC LIMIT 1;";

                MySqlCommand    cmd               = new MySqlCommand(strCMD, dbCheck.msConn);
                MySqlDataReader sqlReader         = null;
                string          currentMethodName = System.Reflection.MethodBase.GetCurrentMethod().Name;
                if (StaticUtils.DBReaderOperationException(ref cmd, ref sqlReader, currentClassName, currentMethodName))
                {
                    while (sqlReader.Read())
                    {
                        strReadDB = new string[] { sqlReader.GetString(0) };
                        //逐条数据判断
                        //判断数据库中是否存在数据
                        if (strReadDB != null)
                        {
                            //比较endtime的时间和当前时间
                            //传入时间
                            DateTime data_create = Convert.ToDateTime(strTime);
                            DateTime data_db     = Convert.ToDateTime(strReadDB[0]);

                            // 相同报警间隔time   unit: s
                            long time_interval = StaticUtils.GetCurrentTimeUnix(data_create) - StaticUtils.GetCurrentTimeUnix(data_db);

                            if (time_interval < 120)
                            {
                                string       strUpdate = "UPDATE event_assemble SET end_time='" + strTime + "'  WHERE target_theone='" + strTarget_theone + "' AND end_time='" + strReadDB[0] + "';";
                                MySqlCommand cmdUpdate = new MySqlCommand(strUpdate, dbInsORUp.msConn);
                                StaticUtils.DBNonQueryOperationException(ref cmd, currentClassName, currentMethodName);
                                //跳出
                                goto here;
                            }
                        }
                    }
                }
                string event_name = "";   //故障二级名称

                //事件等级判断
                string strLevel = "";
                if (strEvent.Contains("信号丢失"))
                {
                    strLevel   = "一般情况";
                    event_name = "监控设备掉线";
                }
                else if (strEvent.Contains("移动侦测"))
                {
                    strLevel   = "一般情况";
                    event_name = "监控移动侦测";
                }
                else if (strEvent.Contains("穿越警戒面"))
                {
                    strLevel   = "重要情况";
                    event_name = "监控越界侦测";
                }


                //生成eventtheon
                string strEventTheOne = Guid.NewGuid().ToString();

                //插入数据
                //往总表跟字表里面都插入数据
                DataRow[] dr_abnormal_super = StaticData.g_dtAbnormalInfor.Select("故障父类名称='event_camera'");
                DataRow[] dr_abnormal_sub   = StaticData.g_dtAbnormalInfor.Select("父ID='" + dr_abnormal_super[0]["ID"] + "'");

                string strInsert1 = "INSERT INTO event_assemble (event_name,event_theone,event_type,start_time,end_time,event_status,position,event_level,target_theone) values" +
                                    "('" + event_name + "','" + strEventTheOne + "','event_camera','" + DateTime.Now.ToString().Replace('/', '-') + "','" + DateTime.Now.ToString().Replace('/', '-') + "','未读','" +
                                    strPosition + "','" + strLevel + "','" + strTarget_theone + "');";
                string strInsert2 = "INSERT INTO event_camera (event_theone,device_event_type,device_theone) values" +
                                    "('" + strEventTheOne + "','" + event_name + "','" + strTarget_theone + "');";
                MySqlCommand cmdInsert = new MySqlCommand(strInsert1, dbInsORUp.msConn);
                StaticUtils.DBNonQueryOperationException(ref cmdInsert, currentClassName, currentMethodName);
                MySqlCommand cmdInsert2 = new MySqlCommand(strInsert2, dbInsORUp.msConn);
                StaticUtils.DBNonQueryOperationException(ref cmdInsert2, currentClassName, currentMethodName);

                //向web上报事件
                string strSendMSG = jscontrol.EventJson(strEventTheOne);
                Mainform.form1.SendMsgToWebSocketClients(strSendMSG);
                //更新UI界面
                StaticUtils.ShowEventMsg("报警时间:" + paras[0] + "  NVRIP:" + paras[1] + "  事件类型:" + event_name + "  通道号:" + channelName + "  摄像机名称:" + strDevice + "\n");
                //计数加一
                StaticData.g_inAlarmNum++;

here:
                dbInsORUp.msConn.Close();
                sqlReader.Close();
                dbCheck.msConn.Close();
            }
            catch (Exception e)
            {
                StaticUtils.ShowEventMsg("HikvisionAlarmCallBackFun.class-CheckEvent : 插入摄像头报警事件出现异常!!\n");
            }
        }