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