//覆寫OnMessage事件,前端send時觸發,被觸發後會回頭觸發前端的onmessage事件 public override void OnMessage(string message) { //將訊息的相關資訊製成Json檔後傳出 _chatRooms[_roomKey].Broadcast( JsonConvert.SerializeObject(new { Message = message, Time = DateTime.Now.ToString("MM/dd hh:mm"), UserID = _userID, UserName = _userName }) ); //將此訊息儲存至訊息列表 Message m = new Message { TeamID = _teamID, MessageDate = DateTime.Now, Speaker = _userID, IsPrivate = _isPrivate, Content = message.Length > 300 ? message.Substring(0, 300) : message }; var db = new TGISDBEntities(); db.Messages.Add(m); db.SaveChanges(); }