8 Hbase get方式获取数据

package com.hikvision.hbase.vertify.test;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.util.Bytes;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InterruptedIOException;
import java.io.UnsupportedEncodingException;

/**
 */
public class HbaseGetTest {
    public static final Logger LOGGER= LoggerFactory.getLogger(HbasePutTest.class);
    public final static String HBASE_MASTER = "hbase.master";
    public final static String HBASE_ZOOKEEPER_PORT = "hbase.zookeeper.property.clientPort";
    public final static String HBASE_ZOOKEEPER_QUORUM = "hbase.zookeeper.quorum";
    public static HTable htable;
    public static void main(String[] args) {
        String hbaseMaster="10.17.139.121:60010";
        String zookeeperPort="2181";
        String zookeeperQuorum="10.17.139.121";
        String tableName="testHbaseHdfsFileCopy";
        Configuration config= HBaseConfiguration.create();
        config.set(HBASE_MASTER, hbaseMaster);
        config.set(HBASE_ZOOKEEPER_PORT, zookeeperPort);
        config.set(HBASE_ZOOKEEPER_QUORUM, zookeeperQuorum);

        try {
            htable = new HTable(config, tableName);
        } catch (IOException e) {
            e.printStackTrace();
        }

        if(null==htable){
            LOGGER.error("htable is null");
            System.exit(-1);
        }
        int i=0;
        while(true){
            String rowkey="";
            if(i<1000) {
                rowkey = "201609000"+i;
            }else if(i<2000){
                rowkey = "201609001"+i;
            }
            else if(i<3000){
                rowkey = "201609002"+i;
            }
            else if(i<4000){
                rowkey = "201609003"+i;
            }
            else if(i<5000){
                rowkey = "201609004"+i;
            }
            else if(i<6000){
                rowkey = "201609005"+i;
            }
            else if(i<7000){
                rowkey = "201609006"+i;
            }
            else if(i<8000){
                rowkey = "201609007"+i;
            }
            else if(i<9000){
                rowkey = "201609008"+i;
            }
            else if(i<10000){
                rowkey = "201609009"+i;
            }else if(i<11000){
                rowkey = "201609010"+i;
            }
            String family="info";
            String column=""+i;
            Result result=getDataFromTable(rowkey,family,column);
            try {
                LOGGER.info(new String(result.getValue(Bytes.toBytes(family),Bytes.toBytes(column)),"utf-8"));
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            i++;
            if(i==11000){
                i=0;
            }
        }
    }
    /**
     * @Description:往表中插入数据
     * @param rowkey
     * @param ts
     * @param family
     * @param column
     * @param value void:
     */
    public static void putDataToTable(String rowkey, long ts, String family, String column, int value) {
        Put put = new Put(Bytes.toBytes(rowkey), ts);
        put.addColumn(Bytes.toBytes(family), Bytes.toBytes(column), Bytes.toBytes(value));
        try {
            htable.put(put);
        } catch (RetriesExhaustedWithDetailsException e) {
            e.printStackTrace();
        } catch (InterruptedIOException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * @Description:往表中插入数据
     * @param rowkey
     * @param ts
     * @param family
     * @param column
     * @param value void:
     */
    public static void putDataToTable(String rowkey, long ts, String family, String column, String value) {
        Put put = new Put(Bytes.toBytes(rowkey), ts);
        put.add(Bytes.toBytes(family), Bytes.toBytes(column), Bytes.toBytes(value));
        try {
            htable.put(put);
        } catch (RetriesExhaustedWithDetailsException e) {
            e.printStackTrace();
        } catch (InterruptedIOException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * @Description:从表中查询数据
     * @param rowkey
     * @param family
     * @param column
     * @return Result:
     */
    public static Result getDataFromTable(String rowkey, String family, String column) {
        Get get = new Get(Bytes.toBytes(rowkey));
        get.addColumn(Bytes.toBytes(family), Bytes.toBytes(column));
        Result dbresult = null;
        try {
            dbresult = htable.get(get);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return dbresult;
    }

    /**
     * @Description:从表中查询数据
     * @param rowkey
     * @param family
     * @param column
     * @return Result:
     */
    public static Result getDataFromTable(String rowkey, String family, String... column) {
        Get get = new Get(Bytes.toBytes(rowkey));
        for (String string : column) {
            get.addColumn(Bytes.toBytes(family), Bytes.toBytes(string));
        }
        Result dbresult = null;
        try {
            dbresult = htable.get(get);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return dbresult;
    }
}