java 连接HBase客户端

HBaseAdmin连接HBase客户端

1. 创建一个新的maven项目，导入org.apache.hadoop等jar包

2. 连接Hbase客户端 并查询数据。

package com.hbase;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;/** * Created by zhaojy on 2017/4/21. */public class HBaseDemo {    private static Configuration config=null;    private static HBaseAdmin admin=null;   //zookeeper集群地址    private final static String   HB_ZK_QUORUM="10.8.177.27,10.8.177.28,10.8.177.29";    //zk端口号    private final static String HB_ZK_PORT="2181";    private static HTablePool tp = null;    static {        try {            config= HBaseConfiguration.create();            config.set("hbase.zookeeper.property.clientPort", HB_ZK_PORT);            config.set("hbase.zookeeper.quorum",HB_ZK_QUORUM);            admin = new HBaseAdmin(config);            tp = new HTablePool(config, 10);        }catch (Exception e){            e.printStackTrace();        }    }//获取表信息    public static HTableInterface getTable(String tableName){        return tp.getTable(tableName);    }    public static void main(String args[]){        //analytics_demo 表名        HTableInterface table = getTable("analytics_demo");        //　获取row=domain.0的数据        Get get = new Get(Bytes.toBytes("domain.0"));        try {            Result result = table.get(get);            System.out.println(result.size());            System.out.println(result);        }catch (Exception e){            e.printStackTrace();        }    }}