Hbase 常用工具类

import java.io.IOException;  
import java.util.ArrayList;  
import java.util.List;  

import org.apache.hadoop.conf.Configuration;  
import org.apache.hadoop.hbase.HBaseConfiguration;  
import org.apache.hadoop.hbase.HColumnDescriptor;  
import org.apache.hadoop.hbase.HTableDescriptor;  
import org.apache.hadoop.hbase.KeyValue;  
import org.apache.hadoop.hbase.MasterNotRunningException;  
import org.apache.hadoop.hbase.ZooKeeperConnectionException;  
import org.apache.hadoop.hbase.client.Delete;  
import org.apache.hadoop.hbase.client.Get;  
import org.apache.hadoop.hbase.client.HBaseAdmin;  
import org.apache.hadoop.hbase.client.HConnection;
import org.apache.hadoop.hbase.client.HConnectionManager;
import org.apache.hadoop.hbase.client.HTable;  
import org.apache.hadoop.hbase.client.HTablePool;  
import org.apache.hadoop.hbase.client.Put;  
import org.apache.hadoop.hbase.client.Result;  
import org.apache.hadoop.hbase.client.ResultScanner;  
import org.apache.hadoop.hbase.client.Scan;  
import org.apache.hadoop.hbase.filter.Filter;  
import org.apache.hadoop.hbase.filter.FilterList;  
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;  
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;  
import org.apache.hadoop.hbase.util.Bytes;  

/**
 *
 * @author create by khj
 *
 */
@SuppressWarnings("all")
public class OperHbaseUtil {  

    public static Configuration configuration;
    
    private static HConnection conn = null;
    
    static {   
        configuration = HBaseConfiguration.create();
        configuration.set("hbase.zookeeper.property.clientPort", "2181");
        configuration.set("hbase.zookeeper.quorum", "192.168.1.100");
        try {
            conn = HConnectionManager.createConnection(configuration);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }  

    public static void main(String[] args) {  
 
    }  

    /**
     * 创建表
     * @param tableName
     */  
    
    public static void createTable(String tableName) {  
        System.out.println("start create table ......");  
        try {  
            HBaseAdmin hBaseAdmin = new HBaseAdmin(configuration);  
            if (hBaseAdmin.tableExists(tableName)) {// 如果存在要创建的表，那么先删除，再创建  
                hBaseAdmin.disableTable(tableName);  
                hBaseAdmin.deleteTable(tableName);  
                System.out.println(tableName + " is exist,detele....");  
            }  
            HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);  
            tableDescriptor.addFamily(new HColumnDescriptor("column1"));  
            tableDescriptor.addFamily(new HColumnDescriptor("column2"));  
            tableDescriptor.addFamily(new HColumnDescriptor("column3"));  
            hBaseAdmin.createTable(tableDescriptor);  
        } catch (MasterNotRunningException e) {  
            e.printStackTrace();  
        } catch (ZooKeeperConnectionException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
        System.out.println("end create table ......");  
    }  

    /**
     * 插入数据
     * @param tableName
     */  
    public static void insertData(String tableName) {  
        System.out.println("start insert data ......");  
        HTablePool pool = new HTablePool(configuration, 1000);  
        HTable table = (HTable) pool.getTable(tableName);  
        Put put = new Put("112233bbbcccc".getBytes());// 一个PUT代表一行数据，再NEW一个PUT表示第二行数据,每行一个唯一的ROWKEY，此处rowkey为put构造方法中传入的值  
        put.add("column1".getBytes(), null, "name".getBytes());// 本行数据的第一列  
        put.add("column2".getBytes(), null, "type".getBytes());// 本行数据的第三列  
        put.add("column3".getBytes(), null, "desc".getBytes());// 本行数据的第三列  
        try {  
            table.put(put);  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
        System.out.println("end insert data ......");  
    }  

    /**
     * 删除一张表
     * @param tableName
     */  
    public static void dropTable(String tableName) {  
        try {  
            HBaseAdmin admin = new HBaseAdmin(configuration);  
            admin.disableTable(tableName);  
            admin.deleteTable(tableName);  
        } catch (MasterNotRunningException e) {  
            e.printStackTrace();  
        } catch (ZooKeeperConnectionException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  

    }  
    /**
     * 根据 rowkey删除一条记录
     * @param tablename
     * @param rowkey
     */  
     public static void deleteRow(String tablename, String rowkey)  {  
        try {  
            HTable table = new HTable(configuration, tablename);  
            List list = new ArrayList();  
            Delete d1 = new Delete(rowkey.getBytes());  
            list.add(d1);  
              
            table.delete(list);  
            System.out.println("删除行成功!");  
              
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
          

    }  

     /**
      * 组合条件删除
      * @param tablename
      * @param rowkey
      */  
     public static void deleteByCondition(String tablename, String rowkey)  {  
            //目前还没有发现有效的API能够实现 根据非rowkey的条件删除 这个功能能，还有清空表全部数据的API操作  

    }  


    /**
     * 查询所有数据
     * @param tableName
     */  
    public static void QueryAll(String tableName) {  
        HTablePool pool = new HTablePool(configuration, 1000);  
        HTable table = (HTable) pool.getTable(tableName);  
        try {  
            ResultScanner rs = table.getScanner(new Scan());  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  

    /**
     * 单条件查询,根据rowkey查询唯一一条记录
     * @param tableName
     */  
    public static void QueryByCondition1(String tableName) {  

        HTablePool pool = new HTablePool(configuration, 1000);  
        HTable table = (HTable) pool.getTable(tableName);  
        try {  
            Get scan = new Get("abcdef".getBytes());// 根据rowkey查询  
            Result r = table.get(scan);  
            System.out.println("获得到rowkey:" + new String(r.getRow()));  
            for (KeyValue keyValue : r.raw()) {  
                System.out.println("列：" + new String(keyValue.getFamily())  
                        + "====值:" + new String(keyValue.getValue()));  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  

    /**
     * 单条件按查询，查询多条记录
     * @param tableName
     */  
    public static void QueryByCondition2(String tableName) {  

        try {  
            HTablePool pool = new HTablePool(configuration, 1000);  
            HTable table = (HTable) pool.getTable(tableName);  
            Filter filter = new SingleColumnValueFilter(Bytes  
                    .toBytes("column1"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("name")); // 当列column1的值为aaa时进行查询  
            Scan s = new Scan();  
            s.setFilter(filter);  
            ResultScanner rs = table.getScanner(s);  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  

    }  

    /**
     * 组合条件查询
     * @param tableName
     */  
    public static void QueryByCondition3(String tableName) {  

        try {  
            HTablePool pool = new HTablePool(configuration, 1000);  
            HTable table = (HTable) pool.getTable(tableName);  

            List<Filter> filters = new ArrayList<Filter>();  

            Filter filter1 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column1"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("name"));  
            filters.add(filter1);  

            Filter filter2 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column2"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("type"));  
            filters.add(filter2);  

            Filter filter3 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column3"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("desc"));  
            filters.add(filter3);  

            FilterList filterList1 = new FilterList(filters);  

            Scan scan = new Scan();  
            scan.setFilter(filterList1);  
            ResultScanner rs = table.getScanner(scan);  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
            rs.close();  

        } catch (Exception e) {  
            e.printStackTrace();  
        }  

    }  

}  

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