首先,我们需要创建一个Kafka消费者。下面是一个简单的Kafka消费者示例: importorg.apache.kafka.clients.consumer.ConsumerConfig;importorg.apache.kafka.clients.consumer.KafkaConsumer;importjava.util.Properties;Propertiesprops=newProperties();props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,"localhost:9092");props...
3. 编写Kafka消费者 接下来,我们编写一个简单的Kafka消费者,用于从指定的Topic消费消息。 import org.apache.kafka.clients.consumer.*; import org.apache.kafka.common.TopicPartition; import java.time.Duration; import java.util.Collections; import java.util.Properties; public class KafkaConsumerExample { pu...
如果所有的消费者有不同的消费者组,则每一条记录都会广播到全部的消费者进行处理。 packagecom.example.rabbittest;importorg.apache.kafka.clients.consumer.ConsumerRecord;importorg.apache.kafka.clients.consumer.ConsumerRecords;importorg.apache.kafka.clients.consumer.KafkaConsumer;importorg.apache.kafka.common.seri...
消费者代码KafkaConsumerExample.java: packagecom.bijian.test;importorg.apache.kafka.clients.consumer.ConsumerRecord;importorg.apache.kafka.clients.consumer.ConsumerRecords;importorg.apache.kafka.clients.consumer.KafkaConsumer;importjava.util.Arrays;importjava.util.Properties;publicclassKafkaConsumerExample {public...
/usr/hdp/current/kafka-broker/bin/kafka-topics.sh --create --replication-factor 2 --partitions 8 --topic test --zookeeper $KAFKAZKHOSTS Use the producer-consumer example to write records to the topic: java -jar kafka-producer-consumer.jar producer test $KAFKABROKERS ...
package com.example.rabbittest; import org.apache.kafka.clients.consumer.ConsumerRecord; import org.apache.kafka.clients.consumer.ConsumerRecords; import org.apache.kafka.clients.consumer.KafkaConsumer; import org.apache.kafka.common.serialization.StringDeserializer; ...
在Kafka 中消费消息需要一个消费者对象。 import org.apache.kafka.clients.consumer.*; import org.apache.kafka.common.TopicPartition; import java.time.Duration; import java.util.Collections; import java.util.Properties; public class ConsumerExample { private static String TOPIC = "test_topic"; private...
3、Kafka 第二、实现效果 Postman或Chrome中,调用如下接口 生产者Producer Console显示 miniooc send message: { "uuid": "d3660a0d-ca78-44fa-9d78-b41f5101bc25", "date": "2019-07-10 09:09:16" } 消费者Consumer Console显示 miniooc receive message: ...
import kafka.consumer.KafkaStream; import kafka.javaapi.consumer.ConsumerConnector; import kafka.message.Message; import kafka.message.MessageAndMetadata; public class ConsumerSample { public static void main(String[] args) { // specify some consumer properties ...
注意消费端需要配置成zk的地址,而生产端配置的是kafka的ip和端口。 来自:http://outofmemory.cn/code-snippet/33051/java-kafka-producer-consumer-example