@Override
  public boolean addTransFare(TransFarePO po) throws RemoteException {
    // TODO Auto-generated method stub
    String driverID = po.getDriverID();
    String orderID = po.getOrderID();
    double money = po.getFare();
    builder = new SQLBuilder();
    builder.InsertInto(tableName, money_col, orderID_col, driverID_col)
        .Values(money, orderID, driverID);

    try {
      builder.excute();
      return true;
    } catch (Exception e) {
      e.printStackTrace();
      return false;
    }
  }
  @Override
  public boolean deleteTransFare(List<TransFarePO> transFareList) throws RemoteException {
    // TODO Auto-generated method stub
    builder = new SQLBuilder();

    for (TransFarePO po : transFareList) {
      String driverID = po.getDriverID();
      String orderID = po.getOrderID();

      builder.DeleteFrom(tableName).Where(orderID_col).EQUALS(orderID);

      System.out.println(builder);

      try {
        builder.excute();
      } catch (Exception e) {
        e.printStackTrace();
        return false;
      }
    }

    return true;
  }