HBase分页查询

public List<Map<String,String>> getPageData(String tableName,String startRowKey,String endRowKey,int pageNo,int pageSize,boolean rowkeyOnly){
		List<Map<String,String>> rtnList = new ArrayList<>();
		try(Table table = conn.getTable(TableName.valueOf(tableName))){
			Scan scan = new Scan();
			Filter pgfilter = new PageFilter(pageSize);
			//记录上一页最后一条rowkey
			byte[] lastRow = null;
			//[start,end)
			if(!StringUtils.isBlank(startRowKey))
				scan.withStartRow(Bytes.toBytes(startRowKey),true);
			if(!StringUtils.isBlank(endRowKey))
				scan.withStopRow(Bytes.toBytes(endRowKey),false);
			if(rowkeyOnly){
				List<Filter> filters = new ArrayList<>();
				Filter keyFilter = new FirstKeyOnlyFilter();
				filters.add(keyFilter);
				filters.add(pgfilter);
				FilterList filterList = new FilterList(FilterList.Operator.MUST_PASS_ALL,filters);
				scan.setFilter(filterList);
			}else
				scan.setFilter(pgfilter);
			int pageIdx = 1;
			while (pageIdx <= pageNo){
				//非第一页,更上一页最后一个rowkey+0x00作为startRowkey
				if(lastRow != null){
					byte[] pageStartRowKey = Bytes.add(lastRow, new byte[]{ 0X00 });
					scan.withStartRow(pageStartRowKey,true);
				}
				ResultScanner scanner = table.getScanner(scan);
				int localRows = 0;
				Result result;
				if(pageIdx == pageNo){
					while ((result = scanner.next() )!= null){
						HashMap<String,String> map = new LinkedHashMap();
						map.put("rowkey", Bytes.toString(result.getRow()));
						if(rowkeyOnly == false){
							Cell[] cells = result.rawCells();
							// 遍历取出cell
							if (cells.length>0) {
								for (Cell cell : cells) {
									String field = Bytes.toString(CellUtil.cloneQualifier(cell));
									String fieldVal = Bytes.toString(CellUtil.cloneValue(cell));
									map.put(field, fieldVal);
								}
							}
						}
						rtnList.add(map);
					}
				}else {
					while ((result = scanner.next()) != null){
						localRows ++;
						lastRow = result.getRow();
					}
				}
				pageIdx++;
				scanner.close();
				//这一页没有记录了，表示没有查到数据，跳出while
				if(localRows == 0) break;
			}
		}catch (Exception e){
			logger.error("scan " + tableName +",{STARTROW=>" +startRowKey + ", STOPROW=>" + endRowKey + "},error !
",e);
			throw new MyCheckException("hbase scan failed!"+e.getMessage());
		}
		return rtnList;
	}

注：如果使用多个Filter的话，PageFilter最后添加