Hbase更新数据

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1.更新的思路

找到需要更新的值{通过table名加上字段找到}

package org.common;import java.io.IOException;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.HTable;import org.apache.hadoop.hbase.client.Put;import org.apache.hadoop.hbase.util.Bytes;public class Demo4 {public static void main(String[] args) {try {/** * HBaseAdmin is special class * some step *///1.get ConfigurationConfiguration conf = HBaseConfiguration.create();//2.get connection from ConfigurationConnection connection = ConnectionFactory.createConnection(conf);//3.get HTable from connectionTableName tableName = TableName.valueOf(Bytes.toBytes("emp"));HTable hTable = (HTable)connection.getTable(tableName);//4.Construct a Put and put it to hTablePut put1 = new Put(Bytes.toBytes("row1"));put1.addColumn(Bytes.toBytes("personal data"),Bytes.toBytes("name"),Bytes.toBytes("late name"));put1.addColumn(Bytes.toBytes("personal data"),Bytes.toBytes("city"),Bytes.toBytes("late beijing"));put1.addColumn(Bytes.toBytes("personal data"),Bytes.toBytes("salary"),Bytes.toBytes("late 50000"));hTable.put(put1);System.out.println("insert into emp finish...");hTable.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}

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