Hbase之进行批处理操作

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.util.Bytes;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * Hbase中进行批处理操作
 */
public class BatchOperationsInHbase {
    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"));
        //声明一个数组来保存所有的操作
        List<Row> batch = new ArrayList<Row>();
        byte[] ROW=Bytes.toBytes("10000");
        byte[] ROW1=Bytes.toBytes("10000");
        byte[] ROW2=Bytes.toBytes("10000");
        byte[] COLFAM2=Bytes.toBytes("colfam1");
        byte[] COLFAM1=Bytes.toBytes("colfam1");
        byte[] QUAL1=Bytes.toBytes("company");
        byte[] QUAL2=Bytes.toBytes("company2");

        Put put = new Put(ROW);
        //添加一个PUT实例
        put.addColumn(COLFAM2, QUAL1, 4, Bytes.toBytes("100010"));
        batch.add(put);
        Get get1 = new Get(ROW1);
        get1.addColumn(COLFAM1, QUAL1);
        batch.add(get1);
        Delete delete = new Delete(ROW1);
        delete.addColumns(COLFAM1, QUAL2);
        batch.add(delete);
        Get get2 = new Get(ROW2);
        get2.addFamily(Bytes.toBytes("BOGUS"));
        batch.add(get2);
        Object[] results = new Object[batch.size()];
        try {
            table.batch(batch, results);
        } catch (Exception e) {
            System.err.println("Error: " + e);
        }
        for (int i = 0; i < results.length; i++) {
            System.out.println("Result[" + i + "]: type = " +
                    results[i].getClass().getSimpleName() + "; " + results[i]);
        }
        table.close();
        connection.close();
    }
}

/**
 olddata
 10000                                           column=colfam1:company, timestamp=1471492514452, value=dianxin
 10000                                           column=colfam1:company2, timestamp=1471492516716, value=dx
**/

/**
newdata
 10000                                           column=colfam1:company, timestamp=1471492514452, value=dianxin
**/