protected virtual SearchCondition ExtraQuery()
        {
            SearchCondition con   = null;
            var             query = HttpContext.Request.Query["q"];

            if (!string.IsNullOrEmpty(query))
            {
                var logger = _ILoggerFactory.CreateLogger(this.GetType().FullName);
                logger.LogInformation("准备解析查询字符串内容 q={query}", query);
                var temp = GZipHelper.DecompressString(query);
                var s    = JsonConvert.DeserializeObject <SearchConditionWrap>(temp);
                if (!string.IsNullOrEmpty(s.SearchType))
                {
                    var t = TypeHelper.GetTypeOfName("LJH.RegionMonitor.Model", s.SearchType);
                    if (t != null)
                    {
                        con = JsonConvert.DeserializeObject(s.Search, t) as SearchCondition;
                        logger.LogInformation("解析查询字符串内容 type={type} con={con}", s.SearchType, con == null ? "null" : Newtonsoft.Json.JsonConvert.SerializeObject(con));
                    }
                    else
                    {
                        logger.LogWarning("解析查询字符串失败");
                    }
                }
                else
                {
                    logger.LogWarning("解析查询字符串失败");
                }
            }
            return(con);
        }