public List <ExchangeCenterConfig> GetExchangeCenter()
 {
     try
     {
         return(DALExchangeCenterConfig.GetExchangeCenter());
     }
     catch (TuhuBizException)
     {
         throw;
     }
     catch (Exception ex)
     {
         var exception = new ExchangeCenterConfigException(1, "GetExchangeCenter", ex);
         Logger.Log(Level.Error, exception, "GetExchangeCenter");
         throw ex;
     }
 }