hBase-thrift 实践(java)

参考官网：

http://wiki.apache.org/hadoop/Hbase/ThriftApi

环境：hbase-0.98.1-cdh5.1.0，hadoop-2.3.0-cdh5.1.0，centos6.5 x64，thrift2

1.引入maven依赖

hbase已整合了thrift，如果是java不用再安装thrift产生服务端代码，只引入下面依赖：

		<dependency>

			<groupId>org.apache.hbase</groupId>

			<artifactId>hbase-thrift</artifactId>

			<version>0.98.1-cdh5.1.0</version>

		</dependency>

2.开启hbase-thrift服务

这里采用thrift2，thrift2是thrift的升级版。

[hbase-root]/bin/hbase thrift2 start

默认端口是9090

3.编写客户端示例程序

实现了新增一条记录，查询一条记录

/**

 *

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.jamesfen.hbase;

import java.nio.ByteBuffer;

import java.util.ArrayList;

import java.util.List;

import org.apache.hadoop.hbase.thrift2.generated.TColumnValue;

import org.apache.hadoop.hbase.thrift2.generated.TGet;

import org.apache.hadoop.hbase.thrift2.generated.THBaseService;

import org.apache.hadoop.hbase.thrift2.generated.TIOError;

import org.apache.hadoop.hbase.thrift2.generated.TPut;

import org.apache.hadoop.hbase.thrift2.generated.TResult;

import org.apache.thrift.TException;

import org.apache.thrift.protocol.TBinaryProtocol;

import org.apache.thrift.protocol.TProtocol;

import org.apache.thrift.transport.TFramedTransport;

import org.apache.thrift.transport.TSocket;

import org.apache.thrift.transport.TTransport;

public class DemoClient {

  public static void main(String[] args) throws TIOError, TException {

    System.out.println("Thrift2 Demo");

    System.out.println("Usage: DemoClient [host=localhost] [port=9090]");

    System.out.println("This demo assumes you have a table called \"example\" with a column family called \"family1\"");

    String host = "192.168.58.101";

    int port = 9090;

    // use passed in arguments instead of defaults

    if (args.length >= 1) {

      host = args[0];

    }

    if (args.length >= 2) {

      port = Integer.parseInt(args[1]);

    }

    int timeout = 10000;

    boolean framed = false;

    TTransport transport = new TSocket(host, port, timeout);

    if (framed) {

      transport = new TFramedTransport(transport);

    }

    TProtocol protocol = new TBinaryProtocol(transport);

    // This is our thrift client.

    THBaseService.Iface client = new THBaseService.Client(protocol);

    // open the transport

    transport.open();

    ByteBuffer table = ByteBuffer.wrap("blog".getBytes());

    TPut put = new TPut();

    put.setRow("103".getBytes());

    TColumnValue columnValue = new TColumnValue();

    columnValue.setFamily("article".getBytes());

    columnValue.setQualifier("title,".getBytes());

    columnValue.setValue("change thirft".getBytes());

    List<TColumnValue> columnValues = new ArrayList<TColumnValue>();

    columnValues.add(columnValue);

    put.setColumnValues(columnValues);

    client.put(table, put);

    TGet get = new TGet();

    get.setRow("102".getBytes());

    TResult result = client.get(table, get);

    System.out.print("row = " + new String(result.getRow()));

    for (TColumnValue resultColumnValue : result.getColumnValues()) {

      System.out.print(",family = " + new String(resultColumnValue.getFamily()));

      System.out.print(",qualifier = " + new String(resultColumnValue.getFamily()));

      System.out.print(",value = " + new String(resultColumnValue.getValue()));

      System.out.print(",timestamp = " + resultColumnValue.getTimestamp());

    }

    transport.close();

  }

}

4.运行结果

row = 102,family = article,qualifier = article,value = change thirft,timestamp = 1423496756997