private Object dataConvert(Object data,ColumnMapping.DataType type){
        switch (type){
            case auto:
                return data;
            case bigint:
                return Long.parseLong(data+"");
            case integer:
                return Integer.parseInt(data+"");
            case time:
                return TimeUtils.parse(data+"");
            case string:
                return data+"";
            default:
                return data;
        }
    }