zoukankan      html  css  js  c++  java

  • 【Hbase三】Java,python操作Hbase

    Java,python操作Hbase

    python操作Hbase

    由于Hbase是java开发的，所有如需要用python进行对Hbase的操作就需要借助Thrift等工具让语言透明化

    安装Thrift之前所需准备

    1. wget http://archive.apache.org/dist/thrift/0.8.0/thrift-0.8.0.tar.gz

    2. tar xzf thrift-0.8.0.tar.gz

    3. yum install automake libtool flex bison pkgconfig gcc-c++ boost-devel libeventdevel zlib-devel python-devel ruby-devel openssl-devel

    4. yum install boost-devel.x86_64

    5. yum install libevent-devel.x86_64

    安装Thrift

    1. 进入Thrift解压目录

    2. 运行：./configure --with-cpp=no --with-ruby=no
      如图：

    3. 运行：make

    4. 运行：make install

    产生针对Python的Hbase的API

    • 下载hbase源码：wget http://mirrors.hust.edu.cn/apache/hbase/0.98.24/hbase-0.98.24-src.tar.gz

    • 进入源码目录并查找thrift对python的支持模块：find . -name Hbase.thrift，查找后地址为：./hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift/Hbase.thrift

    • 进入查找后的目录：cd ./hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift/

    • 运行命令：thrift -gen py Hbase.thrift，生成python对Hbase的模块
      如图：

    • 进入gen-py目录，将hbase目录拷贝到需要运行python脚本文件的同级目录中，命令：cp -raf gen-py/hbase/ /test/hbase_test

    启动Thrift服务

    • 命令：hbase-daemon.sh start thrift
      如图：

    • 检查端口是否被监听
      命令：netstat -antup | grep 9090

    执行python文件，对hbase进行操作

    • 创建create_table.py文件，进行创建表操作
    from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from hbase import Hbase
from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)
transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

#==============================

base_info_contents = ColumnDescriptor(name='meta-data:', maxVersions=1)
other_info_contents = ColumnDescriptor(name='flags:', maxVersions=1)

client.createTable('new_music_table', [base_info_contents, other_info_contents])

print client.getTableNames()

    运行python文件，命令：python create_table.py

    • 创建insert_data.py文件，进行插入数据操作
    from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from hbase import Hbase
from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)
transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'
rowKey = '1100'

mutations = [Mutation(column="meta-data:name", value="wangqingshui"), 
        Mutation(column="meta-data:tag", value="pop"), 
        Mutation(column="flags:is_valid", value="TRUE")]

client.mutateRow(tableName, rowKey, mutations, None)
    • 创建get_one_line.py文件，进行获取数据操作
    from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from hbase import Hbase
from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)
transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'
rowKey = '1100'

result = client.getRow(tableName, rowKey, None)

for r in result:
    print 'the row is ' , r.row
    print 'the name is ' , r.columns.get('meta-data:name').value
    print 'the flag is ' , r.columns.get('flags:is_valid').value
    • 创建scan_many_lines.py文件，进行对hbase数据查询操作(扫描)
    from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from hbase import Hbase
from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)
transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'

scan = TScan()
id = client.scannerOpenWithScan(tableName, scan, None)
result = client.scannerGetList(id, 10)

for r in result:
    print '======'
    print 'the row is ' , r.row

    for k, v in r.columns.items():
        print "	".join([k, v.value])

    模块存放位置

    hbase >> python以及thrift >> python

    Java操作Hbase

    向Hbase中写记录

    package com.cxqy.baseoperation;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.Get;
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.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;

public class HbasePutOneRecord {

	public static final String TableName = "user_action_table";
	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();
	private static HTable table;

	public static void addOneRecord(String tableName, String rowKey, String family, String qualifier, String value)
			throws IOException {
		table = new HTable(conf, tableName);
		Put put = new Put(Bytes.toBytes(rowKey));
		put.add(Bytes.toBytes(family), Bytes.toBytes(qualifier), Bytes.toBytes(value));
		table.put(put);
		System.out.println("insert record " + rowKey + " to table " + tableName + " success");
	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");
		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub
		try {
			addOneRecord(TableName, "ip=192.168.87.200-001", ColumnFamily, "ip", "192.168.87.101");
			addOneRecord(TableName, "ip=192.168.87.200-001", ColumnFamily, "userid", "1100");
			addOneRecord(TableName, "ip=192.168.87.200-002", ColumnFamily, "ip", "192.168.1.201");
			addOneRecord(TableName, "ip=192.168.87.200-002", ColumnFamily, "userid", "1200");
			addOneRecord(TableName, "ip=192.168.87.200-003", ColumnFamily, "ip", "192.168.3.201");
			addOneRecord(TableName, "ip=192.168.87.200-003", ColumnFamily, "userid", "1300");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

    从Hbase中读记录

    package com.cxqy.baseoperation;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HTable;
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.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;

public class HbaseGetOneRecord {

	public static final String TableName = "user_action_table";
	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();
	private static HTable table;

	public static void selectRowKey(String tablename, String rowKey) throws IOException {
		table = new HTable(conf, tablename);
		Get g = new Get(rowKey.getBytes());
		Result rs = table.get(g);

		System.out.println("==> " + new String(rs.getRow()));

		for (Cell kv : rs.rawCells()) {
			System.out.println("--------------------" + new String(kv.getRow()) + "----------------------------");
			System.out.println("Column Family: " + new String(kv.getFamily()));
			System.out.println("Column       :" + new String(kv.getQualifier()));
			System.out.println("value        : " + new String(kv.getValue()));
		}
	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");
		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub
		try {
			selectRowKey(TableName, "ip=192.168.87.200-003");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

    在Hbase中删除某个记录

    package com.cxqy.baseoperation;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseConfiguration;
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.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.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;

public class HbaseDelOneRecord {

	public static final String TableName = "user_action_table";
	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();
	private static HTable table;

	public static void delOneRecord(String tableName, String rowKey) throws IOException {
		table = new HTable(conf, tableName);
		List<Delete> list = new ArrayList<Delete>();
		Delete delete = new Delete(rowKey.getBytes());
		list.add(delete);
		table.delete(list);
		System.out.println("delete record " + rowKey + " success!");
	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");
		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub
		try {
			delOneRecord(TableName, "ip=192.168.87.200-002");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

    从Hbase中批量读记录

    package com.cxqy.baseoperation;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseConfiguration;
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.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.filter.BinaryComparator;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;

public class HbaseScanManyRecords {

	public static final String TableName = "user_action_table";
	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();
	private static HTable table;

	public static void getManyRecords(String tableName) throws IOException {
		table = new HTable(conf, tableName);
		Scan scan = new Scan();
		ResultScanner scanner = table.getScanner(scan);
		for (Result result : scanner) {
			for (KeyValue kv : result.raw()) {
				System.out.print(new String(kv.getRow()) + " ");
				System.out.print(new String(kv.getFamily()) + ":");
				System.out.print(new String(kv.getQualifier()) + " ");
				System.out.print(kv.getTimestamp() + " ");
				System.out.println(new String(kv.getValue()));
			}
		}
	}

	public static void getManyRecordsWithFilter(String tableName, String rowKey) throws IOException {
		table = new HTable(conf, tableName);
		Scan scan = new Scan();
//		scan.setStartRow(Bytes.toBytes("ip=10.11.1.2-996"));
//		scan.setStopRow(Bytes.toBytes("ip=10.11.1.2-997"));
		Filter filter = new RowFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes(rowKey)));
		scan.setFilter(filter);
		ResultScanner scanner = table.getScanner(scan);
		for (Result result : scanner) {
			for (KeyValue kv : result.raw()) {
				System.out.print(new String(kv.getRow()) + " ");
				System.out.print(new String(kv.getFamily()) + ":");
				System.out.print(new String(kv.getQualifier()) + " ");
				System.out.print(kv.getTimestamp() + " ");
				System.out.println(new String(kv.getValue()));
			}
		}
	}
	
	public static void getManyRecordsWithFilter(String tableName, ArrayList<String> rowKeyList) throws IOException {
		table = new HTable(conf, tableName);
		Scan scan = new Scan();
		
		List<Filter> filters = new ArrayList<Filter>();
		for(int i = 0; i < rowKeyList.size(); i++) {
			filters.add(new RowFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes(rowKeyList.get(i)))));
		}
		FilterList filerList = new FilterList(FilterList.Operator.MUST_PASS_ONE, filters);
		scan.setFilter(filerList);
		ResultScanner scanner = table.getScanner(scan);
		for (Result result : scanner) {
			System.out.println("===============");
			for (KeyValue kv : result.raw()) {
				System.out.print(new String(kv.getRow()) + " ");
				System.out.print(new String(kv.getFamily()) + ":");
				System.out.print(new String(kv.getQualifier()) + " ");
				System.out.print(kv.getTimestamp() + " ");
				System.out.println(new String(kv.getValue()));
			}
		}
	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.159.30:60000");
		conf.set("hbase.zookeeper.quorum", "192.168.159.30,192.168.159.31,192.168.159.32");

		// TODO Auto-generated method stub
		try {
//			getManyRecords(TableName);
//			getManyRecordsWithFilter(TableName, "ip=192.11.1.200-0");
			
			ArrayList<String> whiteRowKeyList =new ArrayList<>();
			whiteRowKeyList.add("ip=192.168.87.200-001");
			whiteRowKeyList.add("ip=192.168.87.200-003");
			getManyRecordsWithFilter(TableName, whiteRowKeyList);
			
			//getManyRecords(TableName);
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
  • 相关阅读:
    每日签到
    手机刮刮卡
    js随机更换
    jquery实现input输入框实时输入触发事件代码
    webAPP前端必备知识
    让你分分钟学会 JS 闭包
    js获取url?后的参数
    js获取上传的文件名
    Javascript 中神奇的 this
    由浅入深完全掌握Ajax
  • 原文地址：https://www.cnblogs.com/screen/p/9110081.html
Copyright © 2011-2022 走看看