package chapter1; import org.apache.kafka.clients.consumer.ConsumerRecord; import org.apache.kafka.clients.consumer.ConsumerRecords; import org.apache.kafka.clients.consumer.KafkaConsumer; import java.time.Duration; import java.util.Collections; import java.util.Properties; /** * 代码清单1-2 * Created by 朱小厮 on 2018/7/21. */ public class ConsumerFastStart { public static final String brokerList = "localhost:9092"; public static final String topic = "topic-demo"; public static final String groupId = "group.demo"; public static void main(String[] args) { Properties properties = new Properties(); properties.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); properties.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); properties.put("bootstrap.servers", brokerList); properties.put("group.id", groupId); KafkaConsumer<String, String> consumer = new KafkaConsumer<>(properties); consumer.subscribe(Collections.singletonList(topic)); while (true) { ConsumerRecords<String, String> records = consumer.poll(Duration.ofMillis(1000)); for (ConsumerRecord<String, String> record : records) { System.out.println(record.value()); } } } }