Hbase获取前几条记录

Hbase中hbse shell操作如下：

scan 'Test',{LIMIT=>10}

在java的api中可以通过过滤器来实现操，作如下：

Configuration HBASE_CONFIG = new Configuration();
HBASE_CONFIG.set("hbase.zookeeper.quorum", "XX.XX.XX.XX");
HBASE_CONFIG.set("hbase.zookeeper.property.clientPort", "2181");
hbaseConfig = new HBaseConfiguration(HBASE_CONFIG);
HBaseAdmin hAdmin = new HBaseAdmin(hbaseConfig);
System.out.println(hAdmin.tableExists(TABLE));
HTable table = new HTable(hbaseConfig, TABLE);
Scan scan = new Scan();
scan.setCaching(1);
Filter filter = new PageFilter(20); // 
scan.setFilter(filter);
ResultScanner scanner = table.getScanner(scan);// 执行扫描查找 
int num = 0;
Iterator res = scanner.iterator();// 返回查询遍历器
	while (res.hasNext()) {
		Result result = res.next();
		num++;
		System.out.println("key:" + new String(result.getRow()));
	}
}

 获取了前20条记录