hbase中各种过滤器的使用

1.值过滤器：

private static void scanByValueFilte(Table hTable) throws IOException {
  Scan scan = new Scan();
   SingleColumnValueFilter filter =  new  SingleColumnValueFilter(Bytes.toBytes ("communityIndex" ),Bytes.toBytes( "communitykey" ), CompareOp.EQUAL, Bytes.toBytes ("2917458ddc43db275225dc9207ff953c"));
   scan.setFilter(filter);
   ResultScanner scanner = hTable.getScanner(scan);
 for (Result result : scanner) {
  String rowKeyValue=new String(result.getRow());
  for (Cell cellInfo : result.rawCells()) {
   String familyInfo=new String(CellUtil.cloneFamily(cellInfo));
   String valueInfo=new String(CellUtil.cloneValue(cellInfo ));
   String columnInfo=new String(CellUtil.cloneQualifier(cellInfo));
   log.info(rowKeyValue+">>"+"列族info:"+familyInfo+" >>列info:"+columnInfo+" >>值info:"+valueInfo);
  }
  
 }
}

结果:

2.列过滤器：

public void  getInfoByScannerFilter(Table hTable) throws Exception{
     Scan scan = new Scan();
  Filter filter2 = new QualifierFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes("api_tag")));
    scan.setFilter(filter2);
    ResultScanner scanner = hTable.getScanner(scan);
     for (Result result : scanner) {
  String rowKeyValue=new String(result.getRow());
  for (Cell cellInfo : result.rawCells()) {
   String familyInfo=new String(CellUtil.cloneFamily(cellInfo));
   String valueInfo=new String(CellUtil.cloneValue(cellInfo ));
   String columnInfo=new String(CellUtil.cloneQualifier(cellInfo));
   log.info(rowKeyValue+">>"+"列族info:"+familyInfo+" >>列info:"+columnInfo+" >>值info:"+valueInfo);
  }

 }
     
}

结果: