public virtual JsonModel GetEntityById(int id) { JsonModel jsonModel = null; try { T entity = CurrentDal.GetEntityById(CurrentEntity, id); if (entity != null) { jsonModel = new JsonModel() { errNum = 0, errMsg = "success", retData = entity }; } else { jsonModel = new JsonModel() { errNum = 999, errMsg = "获取数据失败", retData = null }; } return(jsonModel); } catch (Exception ex) { jsonModel = new JsonModel() { errNum = 400, errMsg = ex.Message, retData = "" }; return(jsonModel); } }