maven依賴地址：http://www.mvnrepository.com/artifact/org.apache.kafka/kafka_2.10/0.8.2.0
maven依賴：  

<span style="white-space:pre">	</span><dependencies>
		<dependency>
			<groupId>org.apache.kafka</groupId>
			<artifactId>kafka_2.10</artifactId>
			<version>0.8.2.0</version>
		</dependency>
	</dependencies>
 

生產者程式碼：

package kafka;

import java.util.Properties;
import kafka.javaapi.producer.Producer;
import kafka.producer.KeyedMessage;
import kafka.producer.ProducerConfig;
import kafka.serializer.StringEncoder;

public class Kafkaproducer extends Thread {
	private String topic;
	
	public Kafkaproducer(String topic){
		super();
		this.topic=topic;
	}
	
	@Override
	public void run() {
		Producer<Integer, String> producer=CreateProducer();
		for (int i = 1; i < 10; i++) {
			String message="message"+i;
			producer.send(new KeyedMessage<Integer, String>(topic, message));
			System.out.println("傳送："+message);
			try {
				sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
	
	public Producer<Integer, String> CreateProducer(){
		Properties props=new Properties();
		props.setProperty("zookeeper.connect", "192.168.1.200:2181");
		props.setProperty("serializer.class", StringEncoder.class.getName());
		props.setProperty("metadata.broker.list", "192.168.1.200:9092");
		Producer<Integer, String> producer = new Producer<Integer, String>(new ProducerConfig(props));
		return producer;
	}
	
	public static void main(String[] args) {
		new Kafkaproducer("test").start();
	}
	
}
 

eclipse的console上顯示的資訊：

log4j:WARN No appenders could be found for logger (kafka.utils.VerifiableProperties).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
傳送：message1
傳送：message2
傳送：message3
傳送：message4
傳送：message5
傳送：message6
傳送：message7
傳送：message8
傳送：message9
 

在終端上用命令啟動消費者：
[[email protected] kafka_2.10-0.8.2.1]# bin/kafka-console-consumer.sh --zookeeper 192.168.1.200:2181 --topic test --from-beginning

終端上顯示的資訊：
message1
message2
message3
message4
message5
message6
message7
message8
message9

==================================================================================================================================
消費者程式碼：

package kafka;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import kafka.consumer.Consumer;
import kafka.consumer.ConsumerConfig;
import kafka.consumer.ConsumerIterator;
import kafka.consumer.KafkaStream;
import kafka.javaapi.consumer.ConsumerConnector;


public class KafkaConsumer extends Thread{
	private String topic;
	
	private KafkaConsumer(String topic) {
		super();
		this.topic=topic;
	}
	
	@Override
	public void run() {
		ConsumerConnector consumer = createConsumer();
		Map<String,Integer> topicCountMap=new HashMap<String, Integer>();
		topicCountMap.put(topic, 1);
		
		Map<String, List<KafkaStream<byte[], byte[]>>> MessageStreams = consumer.createMessageStreams(topicCountMap);
		KafkaStream<byte[], byte[]> kafkaStream = MessageStreams.get(topic).get(0);
		ConsumerIterator<byte[], byte[]> iterator = kafkaStream.iterator();
		while (iterator.hasNext()) {
			String message = new String(iterator.next().message());
			System.out.println("接收到："+message);
		}
	}
	
	public ConsumerConnector createConsumer(){
		Properties properties = new Properties();
		properties.setProperty("zookeeper.connect", "192.168.1.200:2181");
		properties.setProperty("group.id", "group1");
		ConsumerConnector createJavaConsumerConnector = Consumer.createJavaConsumerConnector(new ConsumerConfig(properties));
		return createJavaConsumerConnector;
	}
	
	public static void main(String[] args) {
		new KafkaConsumer("test").start();
	}
}

先啟動消費者，再啟動生產者類：
生產者console輸出內容：

log4j:WARN No appenders could be found for logger (kafka.utils.VerifiableProperties).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
傳送：message1
傳送：message2
傳送：message3
傳送：message4
傳送：message5
傳送：message6
傳送：message7
傳送：message8
傳送：message9

消費者console輸出內容：

log4j:WARN No appenders could be found for logger (kafka.utils.VerifiableProperties).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
接收到：message1
接收到：message2
接收到：message3
接收到：message4
接收到：message5
接收到：message6
接收到：message7
接收到：message8
接收到：message9

消費者終端同樣會收到並輸出：

message1
message2
message3
message4
message5
message6
message7
message8
message9