Eclipse 操作Hbase 代码一

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package com.gense;import java.io.IOException;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.client.Delete;import org.apache.hadoop.hbase.client.Get;import org.apache.hadoop.hbase.client.HBaseAdmin;import org.apache.hadoop.hbase.client.HTable;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.util.Bytes;public class HbaseTest_01{    private static Configuration conf = null;        /**     * static hadoop configuration object     */    static     {        conf = HBaseConfiguration.create();        conf.set("hbase.zookeeper.quorum", "192.168.146.129");    }        /**     * create hbase table     * @param tableName     * @param columnFamilys     * @throws IOException     * @see [类、类#方法、类#成员]     */    private static void createTable(String tableName,String[] columnFamilys) throws IOException    {        HBaseAdmin hbaseAdmin = new HBaseAdmin(conf);        //判断tableName是否存在        if(hbaseAdmin.tableExists(tableName))        {           System.out.println("the "+tableName +" is exists");        }        else        {            HTableDescriptor tableDesc = new HTableDescriptor(tableName);            for(String column:columnFamilys)            {                tableDesc.addFamily(new HColumnDescriptor(column));            }            hbaseAdmin.createTable(tableDesc);            System.out.println("create table "+tableName+" success");        }    }        /**     * delete hbase table      * @param tableName     * @throws IOException      * @see [类、类#方法、类#成员]     */    private static void deleteTable(String tableName) throws IOException    {        HBaseAdmin admin = new HBaseAdmin(conf);        //判断tableName是否存在        if(!admin.tableExists(tableName))        {            System.out.println("the "+tableName+" not exists");        }        else        {            admin.disableTable(tableName);            admin.deleteTable(tableName);            System.out.println("the "+tableName+" delete success");        }            }        /**     * insert data into table     * @param tableName     * @param row     * @param family     * @param qualifier     * @param value     * @throws IOException      * @see [类、类#方法、类#成员]     */    private static void put(String tableName,String row,String family,String qualifier,String value) throws IOException    {        HTable hTable = new HTable(conf, tableName);                Put put = new Put(Bytes.toBytes(row));        put.add(Bytes.toBytes(family), Bytes.toBytes(qualifier), Bytes.toBytes(value));        hTable.put(put);        System.out.println("insert record "+row +" to table  "+tableName+" success");    }        /**     * delete record     * @param tableName     * @param rowkey     * @throws IOException      * @see [类、类#方法、类#成员]     */    private static void delete(String tableName,String rowkey) throws IOException    {        HTable hTable = new HTable(conf, tableName);        Delete delete = new Delete(Bytes.toBytes(rowkey));        hTable.delete(delete);                System.out.println("delete record "+rowkey +" from table "+tableName+" success");            }        /**     * get data from table     * @param tableName     * @param rowkey     * @param family     * @param qualifier     * @return      * @throws IOException      * @see [类、类#方法、类#成员]     */    private static void get(String tableName,String rowkey,String family,String qualifier) throws IOException    {        HTable table = new HTable(conf, tableName);        Get get = new Get(Bytes.toBytes(rowkey));        //column family        if(family!=null)        {            //qualifier            if(qualifier!=null)            {                get.addColumn(Bytes.toBytes(family),Bytes.toBytes(qualifier));            }else            {                get.addFamily(Bytes.toBytes(family));            }        }                Result result = table.get(get);        for(KeyValue value : result.raw())        {            System.out.println(new String(value.getRow())+"\t"+new String(value.getFamily())+":"+new String(value.getQualifier())+"\t"+new String(value.getValue())+"\t"+value.getTimestamp());        }    }        /**     * scan all data     * @param tableName     * @throws IOException      * @see [类、类#方法、类#成员]     */    private static void scan(String tableName) throws IOException    {        HTable table = new HTable(conf, tableName);        //defined scan        Scan scan = new Scan();        //scan table         ResultScanner scanner = table.getScanner(scan);                for(Result result : scanner)        {            for(KeyValue value : result.raw())            {                System.out.println(new String(value.getRow())+"\t"+new String(value.getFamily())+":"+new String(value.getQualifier())+"\t"+new String(value.getValue())+"\t"+value.getTimestamp());            }        }    }        /** <一句话功能简述>     * <功能详细描述>     * @param args     * @throws IOException      * @see [类、类#方法、类#成员]     */    public static void main(String[] args) throws IOException    {        //hbase create table        //createTable("test1", new String[]{"baseinfo"});        //delete table         //deleteTable("test");        //insert data        //put("test1", "kitty", "baseinfo", "", "kitty");        //put("test1", "kitty", "baseinfo", "age", "22");        //delete("test1", "kitty");        //get data        //get("test1","kitty",null,null);                //scan all data        scan("test1");    }    }
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