HBase1.2.4新版api操作示例

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用java操作hbase，hbase1.2.4新版对api做了很多调整，当然原来的api也能用，只是会提示你is deprecated，对象上还会被划一道横线，看着不爽，旧api早晚会淘汰，所以有必要使用新api：

1.代码如下

import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.hbase.*;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;/** * Created by hasee on 2017/3/3. */public class HBaseDao {    public static Configuration conf;    public static Connection connection;    static{        Configuration HBASE_CONFIG=new Configuration();        HBASE_CONFIG.set("hbase.zookeeper.quorum","192.168.73.1,192.168.73.2,192.168.73.3");        HBASE_CONFIG.set("hbase.zookeeper.property.clientPort","2181");        conf= HBaseConfiguration.create(HBASE_CONFIG);        try {            connection=ConnectionFactory.createConnection(conf);        } catch (IOException e) {            e.printStackTrace();        }    }    /**     * 创建表     * @param tableName     * @param familys     * @throws IOException     */    public static void createTable(String tableName,String[] familys) throws IOException {        //HBaseAdmin admin=new HBaseAdmin(conf);       // Connection connection= ConnectionFactory.createConnection(conf);        Admin admin=connection.getAdmin();        if(admin.tableExists(TableName.valueOf(tableName))){            System.out.println("table already exists!");        }else {            HTableDescriptor tableDescriptor=new HTableDescriptor(TableName.valueOf(tableName));            for(int i=0;i<familys.length;i++){                tableDescriptor.addFamily(new HColumnDescriptor(familys[i]));            }            admin.createTable(tableDescriptor);            System.out.println("create table "+tableName+" ok.");        }    }    /**     * 删除表     * @param tableName     * @throws IOException     */    public static void deleteTable(String tableName) throws Exception {        try {            Admin admin=connection.getAdmin();            admin.disableTable(TableName.valueOf(tableName));            admin.deleteTable(TableName.valueOf(tableName));            System.out.println("delete table "+tableName+" ok.");        } catch (MasterNotRunningException e) {            e.printStackTrace();        }catch (ZooKeeperConnectionException e){            e.printStackTrace();        }    }    /**     * 插入数据     * @param tableName     * @param rowKey     * @param family     * @param qualifier     * @param value     * @throws Exception     */    public static void addRecord(String tableName,String rowKey,String family,String qualifier,String value) throws Exception {        try {            Table table=connection.getTable(TableName.valueOf(tableName));            Put put=new Put(Bytes.toBytes(rowKey));            put.addColumn(Bytes.toBytes(family),Bytes.toBytes(qualifier),Bytes.toBytes(value));            table.put(put);            System.out.println("insert record  "+rowKey+" to table "+tableName+" ok.");        } catch (IOException e) {            e.printStackTrace();        }    }    /**     * 获取数据     * @param tableName     * @param rowKey     * @throws Exception     */    public static void getOneRecord(String tableName,String rowKey) throws IOException {            Table table=connection.getTable(TableName.valueOf(tableName));            Get get=new Get(rowKey.getBytes());            Result rs=table.get(get);            for(Cell cell:rs.rawCells()){                System.out.println(new String(cell.getRowArray())+" ");                System.out.println(new String(cell.getFamilyArray())+":");                System.out.println(new String(cell.getQualifierArray())+" ");                System.out.println(cell.getTimestamp()+" ");                System.out.println(new String(cell.getValueArray())+" ");            }    }    /**     * 浏览每一行     * @param tableName     */    public static void getAllRecord(String tableName) {        try {            Table table=connection.getTable(TableName.valueOf(tableName));            Scan scan=new Scan();            ResultScanner rs=table.getScanner(scan);            for (Result r:rs) {                for (Cell cell : r.rawCells()) {                    System.out.println(new String(cell.getRowArray()) + " ");                    System.out.println(new String(cell.getFamilyArray()) + ":");                    System.out.println(new String(cell.getQualifierArray()) + " ");                    System.out.println(cell.getTimestamp() + " ");                    System.out.println(new String(cell.getValueArray()) + " ");                }            }        } catch (IOException e) {            e.printStackTrace();        }    }    public static void deleteRecord(String tableName,String rowKey) throws IOException {        Table table=connection.getTable(TableName.valueOf(tableName));        List list=new ArrayList();        Delete delete=new Delete(rowKey.getBytes());        list.add(delete);        table.delete(list);        System.out.println("delete record "+rowKey+" ok.");    }    public static void main(String[] args) throws Exception {        HBaseDao hBaseDao=new HBaseDao();        //hBaseDao.createTable("hello",new String[]{"ai","bi"});        //hBaseDao.addRecord("hello","row2","bi","521","yangqing");        //hBaseDao.getOneRecord("hello","row2");        //hBaseDao.getAllRecord("hello");        hBaseDao.deleteRecord("hello","row1");    }}

2.另外我是在idea中的maven项目中开发的，下面贴上java操作hbase的maven依赖：

<dependencies>    <!--Hadoop main artifact-->    <dependency>        <groupId>org.apache.hadoop</groupId>        <artifactId>hadoop-common</artifactId>        <version>2.6.0</version>    </dependency>    <dependency>        <groupId>org.apache.hadoop</groupId>        <artifactId>hadoop-client</artifactId>        <version>2.6.0</version>    </dependency>    <dependency>        <groupId>org.apache.hadoop</groupId>        <artifactId>hadoop-hdfs</artifactId>        <version>2.6.0</version>    </dependency>    <dependency>        <groupId>org.apache.hbase</groupId>        <artifactId>hbase</artifactId>        <version>1.2.4</version>    </dependency>    <dependency>        <groupId>org.apache.hbase</groupId>        <artifactId>hbase-common</artifactId>        <version>1.2.4</version>    </dependency>    <dependency>        <groupId>org.apache.hbase</groupId>        <artifactId>hbase-client</artifactId>        <version>1.2.4</version>    </dependency>    <!--Unit test artifacts-->    <dependency>        <groupId>junit</groupId>        <artifactId>junit</artifactId>        <version>4.11</version>    </dependency>    <dependency>        <groupId>org.hamcrest</groupId>        <artifactId>hamcrest-library</artifactId>        <version>1.3</version>    </dependency>    <dependency>        <groupId>org.hamcrest</groupId>        <artifactId>hamcrest-core</artifactId>        <version>1.3</version>    </dependency>    <dependency>        <groupId>commons-io</groupId>        <artifactId>commons-io</artifactId>        <version>2.4</version>    </dependency>    <dependency>        <groupId>com.sun.jersey</groupId>        <artifactId>jersey-core</artifactId>        <version>1.8</version>    </dependency></dependencies>

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