介绍
这期内容当中小编将会给大家带来有关怎么在Java中利用卡夫卡发送消息,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
1。maven依赖包
& lt; dependency>, ,& lt; groupId> org.apache.kafka, ,& lt; artifactId> kafka-clients, ,& lt; version> 0.9.0.1, & lt;/dependency>
2。生产者代码
package com.lnho.example.kafka;,, import org.apache.kafka.clients.producer.KafkaProducer, import org.apache.kafka.clients.producer.Producer, import org.apache.kafka.clients.producer.ProducerRecord;,,, import java.util.Properties;,,, {public class  KafkaProducerExample ,public static  void main (String [], args), {, Properties 才能;props =, new 属性(),, props.put才能(“bootstrap.servers",,“师父:9092“),, props.put才能(“acks",,“all"),, props.put才能(“retries",, 0),, props.put才能16384年“batch.size",,,, props.put才能(“linger.ms",, 1),, props.put才能(“buffer.memory",, 33554432),, props.put才能(“key.serializer",,“org.apache.kafka.common.serialization.StringSerializer"),, props.put才能(“value.serializer",,“org.apache.kafka.common.serialization.StringSerializer"),,,, Producer<才能,字符串,String>, producer =, new KafkaProducer<祝辞(道具),, ,,(int 小姐:=,0;,小姐:& lt;, 100;,我+ +), ,,producer.send (new ProducerRecord<祝辞(“topic1",, Integer.toString(我),Integer.toString(我))),,,, producer.close才能(),, }大敌; }
3。消费者代码
package com.lnho.example.kafka;,,, 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  KafkaConsumerExample ,public static  void main (String [], args), {, Properties 才能;props =, new 属性(),, props.put才能(“bootstrap.servers",,“师父:9092“),, props.put才能(“group.id",,“test"),, props.put才能(“enable.auto.commit",,“true"),, props.put才能(“auto.commit.interval.ms",,“1000“),, props.put才能(“session.timeout.ms",,“30000“),, props.put才能(“key.deserializer",,“org.apache.kafka.common.serialization.StringDeserializer"),, props.put才能(“value.deserializer",,“org.apache.kafka.common.serialization.StringDeserializer"),, KafkaConsumer<才能,字符串,String>, consumer =, new KafkaConsumer<祝辞(道具),, consumer.subscribe才能(arrays . aslist (“topic1")),, while 才能;(真实),{, ,,ConsumerRecords<字符串,String>, records =, consumer.poll (100),, ,,for (字符串,ConsumerRecord, record :,记录), ,,,System.out.printf (“offset =, % d, key =, % s,, value =, % s \ n",, record.offset (),, record.key (),, record.value ()),, ,,}, }大敌; }
上述就是小编为大家分享的怎么在Java中利用卡夫卡发送消息了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注行业资讯频道。