Hbase之批量删除数据

时间:2023-03-09 09:49:39
Hbase之批量删除数据
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.util.Bytes; import java.io.IOException;
import java.util.ArrayList;
import java.util.List; /**
* 在hbase中删除数据
*/
public class DeleteListDataFromHbase {
public static void main(String args[]) throws IOException {
Configuration configuration = HBaseConfiguration.create();
Connection connection = ConnectionFactory.createConnection(configuration);
//建立表的连接
Table table = connection.getTable(TableName.valueOf("testtable"));
List<Delete> deletes = new ArrayList<Delete>();
Delete delete1 = new Delete(Bytes.toBytes("row1"));
delete1.setTimestamp(4);
deletes.add(delete1);
Delete delete2 = new Delete(Bytes.toBytes("row2"));
delete2.addColumn(Bytes.toBytes("colfam1"), Bytes.toBytes("qual1"));
delete2.addColumns(Bytes.toBytes("colfam2"), Bytes.toBytes("qual3"), 5);
deletes.add(delete2);
Delete delete3 = new Delete(Bytes.toBytes("row3"));
delete3.addFamily(Bytes.toBytes("colfam1"));
delete3.addFamily(Bytes.toBytes("colfam2"), 3);
deletes.add(delete3);
table.delete(deletes);
}
}