根据Rowkey和ColumnFamily获取记录 [英] Get records based on Rowkey and ColumnFamily
本文介绍了根据Rowkey和ColumnFamily获取记录的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
是否可以根据 rowKey 和 columnFamily 读取 HBase code>。目前我通过rowkey访问这段代码的记录：
Is it possible to read data from HBase based on rowKey and columnFamily. Currently I access records by rowkey by this code:
HTable table = new HTable(conf, "tablename");
Get get = new Get(rowkey.getBytes());
Result rs = table.get(get);
for (KeyValue kv : rs.raw()) {
holdvalue = new String(kv.getValue());
}
我想将columnfamily添加为过滤器来访问属于该列的特定记录特定的 rowKey 和 columnFamily 。我怎么能做到这一点？
I want to add columnfamily as a filter to access specific records that belongs to that specific rowKey and columnFamily. How could I achieve this?
在此先感谢
Thanks in advance
推荐答案
您可以使用 Get 对象的 addFamily 方法将列族添加为过滤器。
You can add the column family as a filter by using the addFamily method of the Get object.
HTable table = new HTable(conf, "tablename");
Get get = new Get(rowkey.getBytes());
get.addFamily(family.getBytes()); // <-----------------
Result rs = table.get(get);
for (KeyValue kv : rs.raw()) {
holdvalue = new String(kv.getValue());
}
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