标签：com target code version log 一个 bsp 监听 while
安装zookeeper: https://www.cnblogs.com/guoyansi19900907/p/9954864.html
并启动zookeeper
安装kafka https://www.cnblogs.com/guoyansi19900907/p/9961143.html
并启动kafka.
1.创建maven java项目
2.添加依赖
<dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version>0.11.0.0</version> </dependency>
3.创建生产者：
import org.apache.kafka.clients.consumer.ConsumerRecord; import org.apache.kafka.clients.consumer.ConsumerRecords; import org.apache.kafka.clients.consumer.KafkaConsumer; import java.util.Arrays; import java.util.Properties; public class ConsumerDemo { public static void main(String[] args) { Properties properties=new Properties(); properties.put("bootstrap.servers","192.168.123.128:9092"); properties.put("group.id", "group-1"); properties.put("enable.auto.commit", "true"); properties.put("auto.commit.interval.ms", "1000"); properties.put("auto.offset.reset", "earliest"); properties.put("session.timeout.ms", "30000"); properties.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); properties.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); KafkaConsumer<String, String> kafkaConsumer = new KafkaConsumer<String, String>(properties); kafkaConsumer.subscribe(Arrays.asList("gys")); while (true) { ConsumerRecords<String, String> records = kafkaConsumer.poll(100); for (ConsumerRecord<String, String> record : records) { System.out.printf("offset = %d, value = %s", record.offset(), record.value()); System.out.println(); } } } }
4.创建消费者
import org.apache.kafka.clients.consumer.ConsumerRecord; import org.apache.kafka.clients.consumer.ConsumerRecords; import org.apache.kafka.clients.consumer.KafkaConsumer; import java.util.Arrays; import java.util.Properties; public class ConsumerDemo { public static void main(String[] args) { Properties properties=new Properties(); properties.put("bootstrap.servers","192.168.123.128:9092"); properties.put("group.id", "group-1"); properties.put("enable.auto.commit", "true"); properties.put("auto.commit.interval.ms", "1000"); properties.put("auto.offset.reset", "earliest"); properties.put("session.timeout.ms", "30000"); properties.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); properties.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer"); KafkaConsumer<String, String> kafkaConsumer = new KafkaConsumer<String, String>(properties); kafkaConsumer.subscribe(Arrays.asList("gys")); while (true) { ConsumerRecords<String, String> records = kafkaConsumer.poll(100); for (ConsumerRecord<String, String> record : records) { System.out.printf("offset = %d, value = %s", record.offset(), record.value()); System.out.println(); } } } }
5.先运行消费者，然后会出现一个监听的控制台，运行生产者。
标签：com target code version log 一个 bsp 监听 while
原文地址：https://www.cnblogs.com/guoyansi19900907/p/10926670.html
