producer consumer java代码

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 ConsumerTest {public ConsumerConnector createConsumer(){Properties properties = new Properties();//zookeeper配置properties.setProperty("zookeeper.connect", "192.168.10.250:2181");properties.setProperty("zookeeper.session.timeout.ms", "4000");  properties.setProperty("zookeeper.sync.time.ms", "200");  //consumer所在的组properties.setProperty("group.id", "test_consumer_group");        properties.setProperty("auto.commit.interval.ms", "1000");          properties.setProperty("auto.offset.reset", "smallest");            properties.setProperty("serializer.class", "kafka.serializer.StringEncoder");         return Consumer.createJavaConsumerConnector(new ConsumerConfig(properties));}public void consumer(){//获取连接器ConsumerConnector connector = createConsumer();HashMap<String, Integer> topics = new HashMap<String,Integer>();//设置topic和partitiontopics.put("test", 1);//获取消息Map<String, List<KafkaStream<byte[], byte[]>>>  messages = connector.createMessageStreams(topics);//获取topic中某个partition中的数据KafkaStream<byte[], byte[]> kafkaStream = messages.get("test").get(0);//遍历获取ConsumerIterator<byte[], byte[]> iterator =  kafkaStream.iterator();while(iterator.hasNext()){byte[] bytes = iterator.next().message();System.out.println("consumer message is "+new String(bytes));}}public static void main(String[] args) {new ConsumerTest().consumer();}}

package kafka;import java.util.Properties;import kafka.javaapi.producer.Producer;import kafka.producer.KeyedMessage;import kafka.producer.ProducerConfig;public class ProducerTest {public Producer<String,String> createProducer(){Properties properties = new Properties();properties.setProperty("zookeeper.connect", "192.168.10.250:2181");properties.setProperty("serializer.class", "kafka.serializer.StringEncoder"); properties.setProperty("metadata.broker.list", "192.168.10.250:9092");return new Producer<String,String>(new ProducerConfig(properties));}public void producer(){Producer<String,String> producer = createProducer();for(int i=0;i<100;i++){producer.send(new KeyedMessage<String, String>("test", "producer message "+i));}}public static void main(String[] args) {new ProducerTest().producer();}}