public static void PostBack(IWebSocketConnection socket, string message)
{
//qc|car|6e09f918_d4ef_4f27_8ed3_ab4800f5f488 //取前最近36条数据
//qc|car|6e09f918_d4ef_4f27_8ed3_ab4800f5f488|startTime 多个car用,隔开（多个car时同时若存在startTime，startTime也要用,隔开） //取大于startTime的数据，不超过36条
//返回为Json字符串 格式为
/*
* [
* {"carId":"abc1","data":[
* {"time":"2020-12-12 12:12:14","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123},
* {"time":"2020-12-12 12:12:13","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123},
* {"time":"2020-12-12 12:12:12","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123}
* ] },
* {"carId":"abc2","data":[
* {"time":"2020-12-12 12:12:14","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123},
* {"time":"2020-12-12 12:12:13","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123},
* {"time":"2020-12-12 12:12:12","jingDu":123,"weiDu":123,"suDu":123,"fangXiang":123}
* ] }
* ]
*/
if (message.StartsWith("qc|bigScreenAlert"))
{
socket.Send(Redis.Read("bigScreenAlert"));
}
if (message.StartsWith("qc|alert|"))
{
string[] item = message.Split(new string[] { "|" }, StringSplitOptions.RemoveEmptyEntries);
string userId = item[2].Trim();
socket.Send(Redis.Read("alert:" + userId));
}
if (message.StartsWith("qc|car|"))
{
string[] item = message.Split(new string[] { "|" }, StringSplitOptions.RemoveEmptyEntries);
string[] startTimes = null;
if (item.Length > 3)
{
string _startTimes = item[3].Trim();
startTimes = _startTimes.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
}
string carIDs = item[2].Trim();
string[] cars = carIDs.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
string[] sqls = new string[cars.Length];
for (int i = 0; i < cars.Length; i++)
{
if (startTimes == null)
{
sqls[i] = "select * from tb_gps where carFid='" + str.D2DD(cars[i]) + "' order by addtime desc limit 36";
}
else
{
sqls[i] = "select * from tb_gps where carFid='" + str.D2DD(cars[i]) + "' and addtime>'" + str.D2DD(startTimes[i]) + "' order by addtime desc limit 36";
}
}
StringBuilder sb = new StringBuilder(100);
sb.Append("[");
using (DB db = new DB())
{
db.Open(Const.MySql_ConnStr);
for (int i = 0; i < cars.Length; i++)
{
string sql = sqls[i];
if (i > 0)
{
sb.Append(",");
}
sb.Append("{\"carId\":\"" + cars[i] + "\",\"data\":[");
bool hasdata = false;
using (DR dr = db.OpenRecord(sql))
{
while (dr.Read())
{
if (hasdata)
{
sb.Append(",");
}
GPSPoint gp = GPSChange.WGS84_to_GCJ02(Convert.ToDouble(dr.GetDecimal("weidu")), Convert.ToDouble(dr.GetDecimal("jingdu")));
sb.Append("{\"time\":\"" + FTFrame.Tool.str.GetDateTime(dr.GetDateTime("addtime")) + "\",\"jingDu\":" + gp.GetLng() + ",\"weiDu\":" + gp.GetLat() + ",\"suDu\":" + dr.GetDecimal("sudu") + ",\"fangXiang\":" + dr.GetDecimal("fangxiang") + "}");
hasdata = true;
}
}
sb.Append("]}");
}
}
sb.Append("]");
socket.Send(sb.ToString());
}
}