开发的时候发现HBASE使用的一个问题


{{{
 byte[][] qualifiers = new byte[][]{Bytes.toBytes("apns"), Bytes.toBytes("receive_type"), Bytes.toBytes("receiv
e_time")};
    Scan scan = new Scan();
    scan.setCaching(100);
    scan.setMaxVersions(1);
    FilterList filters = new FilterList();

    RowFilter rowfilter = new RowFilter(CompareOp.EQUAL, new BinaryPrefixComparator(new String(3 + "_").getBytes()
));
    filters.addFilter(rowfilter);

    SingleColumnValueFilter filter = new SingleColumnValueFilter(
            Bytes.toBytes("base"),
            "app_ver_int".getBytes(),
            CompareOp.EQUAL,
            Bytes.toBytes(3020000));
    filters.addFilter(filter);

    for (int i = 0; i < qualifiers.length; i++) {
        scan.addColumn(Bytes.toBytes("base"), qualifiers[i]);
    }
    // filters.addFilter(new FirstKeyOnlyFilter());

    scan.setFilter(filters);
    ResultScanner scanner = hTable.getScanner(scan);

}}}

出现问题，由于filter里面的字段在addColumn的时候是没用的，filter就失效了