SpringBoot集成kafka开发-消息消费的分区策略（消费者如何判断从哪个分区中消费消息的？）

这里写目录标题

• 1、kafak消息者消费消息的4种分区策略
• 2、kafka默认的消费分区策略1-RangeAssignor（均匀分配、默认分配策略）
• • 2.1、代码验证RangeAssignor的消息分区策略
  • 2.1.1、消费者
  • 2.1.2、生产者
  • 2.1.3、kafak配置类
  • 2.1.4、对象实体类
  • 2.1.5、项目配置文件application.yml
  • 2.1.6、测试类
  • 2.1.7、测试
• 3、kafka消费分区策略2-RoundRobinAssignor（轮询分配）
• • 3.1、消费者
  • 3.2、kafka配置类
  • 3.3、项目配置文件application.yml
  • 3.4、其余文件与上一章节一致
  • 3.5、测试
• 4、StickyAssignor（粘性分配）和CooperativeStickyAssignor（协作分区）消息者消费分区策略
• • 4.1、修改kafka配置类
  • 4.2、kafka配置类

1、kafak消息者消费消息的4种分区策略

推荐采用StickyAssignor（粘性分配）或者CooperativeStickyAssignor（协作分区）

2、kafka默认的消费分区策略1-RangeAssignor（均匀分配、默认分配策略）

2.1、代码验证RangeAssignor的消息分区策略

2.1.1、消费者

• topics = {"myTopic"}，消费主题为myTopic下分区这 的消息
• concurrency = "3"，指定3个消费者

package com.power.consumer;

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class EventConsumer {

    /**
     * topics 用于指定从哪个主题中消费消息
     * concurrency 用于指定有多少个消费者
     * @param record
     */
    @KafkaListener(topics = {"myTopic"}, groupId = "myGroup",concurrency = "3")
    public void onEventA(ConsumerRecord<String, String> record) {
        System.out.println(Thread.currentThread().getId()+"---> 消费消息 record = " + record);
    }
}

2.1.2、生产者

向myTopic主题中发送100个消息

package com.power.producer;

import com.power.model.User;
import com.power.util.JSONUtils;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.Date;

@Component
public class EventProducer {

    @Resource
    private KafkaTemplate<String,Object> kafkaTemplate;

    public void sendEvent(){
        for (int i = 0; i < 100; i++) {
            User user = User.builder().id(i).phone("1567676767"+i).birthday(new Date()).build();
            String userJson = JSONUtils.toJSON(user);
            kafkaTemplate.send("myTopic","k"+i, userJson);
        }
    }

}

2.1.3、kafak配置类

项目启动，自动创建myTopic主题，分配10个分区

package com.power.config;

import org.apache.kafka.clients.admin.NewTopic;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class KafkaConfig {

    @Bean
    public NewTopic newTopic(){
        return new NewTopic("myTopic",10, (short)1);
    }
}

2.1.4、对象实体类

package com.power.model;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.Date;

@Builder
@AllArgsConstructor
@NoArgsConstructor
@Data
public class User {

    private Integer id;

    private String phone;

    private Date birthday;

}

2.1.5、项目配置文件application.yml

spring:
  application:
    #应用名称
    name: spring-boot-06-kafka-ConsumerPartitonStrategy

  #kafka连接地址（ip+port）
  kafka:
    bootstrap-servers: <你的kafka服务器IP>:9092

    #配置消费者的反序列化
    consumer:
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      auto-offset-reset: earliest

2.1.6、测试类

package com.power;

import com.power.producer.EventProducer;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

import javax.annotation.Resource;

@SpringBootTest
public class SpringBoot06KafkaBaseApplication {

    @Resource
    private EventProducer eventProducer;

    @Test
    void sendInterceptor(){
        eventProducer.sendEvent();
    }

}

2.1.7、测试

• 先启动生产者，向myTopic主题中9个分区中发送100条消息

• 再启动消费者监听

• 通过打印发现，因为我们指定了三个消费者，所以共有3个Thread.currentThread().getId()线程ID启动，进行消息消费

• 其中线程ID为27线程只读取0、1、2、3分区消息

• 其中线程ID为29线程只读取4、5、6分区消息

• 其中线程ID为31线程只读取7、8、9分区消息

3、kafka消费分区策略2-RoundRobinAssignor（轮询分配）

3.1、消费者

• containerFactory = "ourKafkaListenerContainerFactory"指定使用自己创建的消费者消费工厂

package com.power.consumer;

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

@Component
public class EventConsumer {

    /**
     * topics 用于指定从哪个主题中消费消息
     * concurrency 用于指定有多少个消费者
     * @param record
     */
    @KafkaListener(topics = {"myTopic"}, groupId = "myGroup",concurrency = "3",containerFactory = "ourKafkaListenerContainerFactory")
    public void onEventA(ConsumerRecord<String, String> record) {
        System.out.println(Thread.currentThread().getId()+"---> 消费消息 record = " + record);
    }
}

3.2、kafka配置类

package com.power.config;

import org.apache.kafka.clients.admin.NewTopic;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.RoundRobinAssignor;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class KafkaConfig {

    @Value("${spring.kafka.bootstrap-servers}")
    private String bootstrapServers;

    @Value("${spring.kafka.consumer.key-deserializer}")
    private String keyDeserializer;

    @Value("${spring.kafka.consumer.value-deserializer}")
    private String valueDeserializer;

    @Value("${spring.kafka.consumer.auto-offset-reset}")
    private String autoOffsetReset;

    /**
     * 消费者相关配置
     * @return
     */
    public Map<String,Object> consumerConfigs(){
        Map<String,Object> props = new HashMap<>();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,bootstrapServers);
        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,keyDeserializer);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,valueDeserializer);
        props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG,autoOffsetReset);
        //指定使用轮询的消息消费分区器
        props.put(ConsumerConfig.PARTITION_ASSIGNMENT_STRATEGY_CONFIG, RoundRobinAssignor.class.getName());
        return props;
    }

    /**
     * 消费者创建工厂
     */
    @Bean
    public ConsumerFactory<String,String> consumerFactory(){
        return new DefaultKafkaConsumerFactory<>(consumerConfigs());
    }

    /**
     * 创建监听器容器工厂
     * @param ourConsumerFactory
     * @return
     */
    @Bean
    public KafkaListenerContainerFactory<?> ourKafkaListenerContainerFactory(ConsumerFactory<String,String> ourConsumerFactory){
        ConcurrentKafkaListenerContainerFactory<String,String> listenerContainerFactory = new ConcurrentKafkaListenerContainerFactory<>();
        listenerContainerFactory.setConsumerFactory(ourConsumerFactory);
        return listenerContainerFactory;
    }

    @Bean
    public NewTopic newTopic(){
        return new NewTopic("myTopic",10, (short)1);
    }
}

3.3、项目配置文件application.yml

spring:
  application:
    #应用名称
    name: spring-boot-06-kafka-ConsumerPartitonStrategy

  #kafka连接地址（ip+port）
  kafka:
    bootstrap-servers: <你的kafka服务器IP>:9092

    #配置消费者的反序列化
    consumer:
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      auto-offset-reset: earliest

3.4、其余文件与上一章节一致

3.5、测试

• 先启动消费者，总共有ID为33、35、37的三个消费者
• 再启动生产者

测试发现，三个消费者轮询消费9个分区中的消息：

• ID为33的消费者消费的时0、3、6、9分区的消息
• ID为35的消费者消费的时1、4、7分区的消息
• ID为37的消费者消费的时2、5、8分区的消息

33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 0, CreateTime = 1724559582065, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k4, value = {"id":4,"phone":"15676767674","birthday":1724559582065})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 0, CreateTime = 1724559582069, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k13, value = {"id":13,"phone":"156767676713","birthday":1724559582069})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 0, CreateTime = 1724559582066, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k5, value = {"id":5,"phone":"15676767675","birthday":1724559582066})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 1, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k19, value = {"id":19,"phone":"156767676719","birthday":1724559582072})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 1, CreateTime = 1724559582068, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k9, value = {"id":9,"phone":"15676767679","birthday":1724559582068})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 2, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k29, value = {"id":29,"phone":"156767676729","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 3, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k30, value = {"id":30,"phone":"156767676730","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 4, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k43, value = {"id":43,"phone":"156767676743","birthday":1724559582074})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 5, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k56, value = {"id":56,"phone":"156767676756","birthday":1724559582075})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 6, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k57, value = {"id":57,"phone":"156767676757","birthday":1724559582076})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 7, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k63, value = {"id":63,"phone":"156767676763","birthday":1724559582076})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 8, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k68, value = {"id":68,"phone":"156767676768","birthday":1724559582077})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 9, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k82, value = {"id":82,"phone":"156767676782","birthday":1724559582079})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 10, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k88, value = {"id":88,"phone":"156767676788","birthday":1724559582079})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 11, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k89, value = {"id":89,"phone":"156767676789","birthday":1724559582080})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 1, CreateTime = 1724559582067, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k8, value = {"id":8,"phone":"15676767678","birthday":1724559582067})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 2, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k21, value = {"id":21,"phone":"156767676721","birthday":1724559582072})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 4, leaderEpoch = 0, offset = 12, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k92, value = {"id":92,"phone":"156767676792","birthday":1724559582080})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 0, CreateTime = 1724559582071, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k16, value = {"id":16,"phone":"156767676716","birthday":1724559582071})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 1, CreateTime = 1724559582071, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k17, value = {"id":17,"phone":"156767676717","birthday":1724559582071})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 2, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k27, value = {"id":27,"phone":"156767676727","birthday":1724559582072})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 3, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k34, value = {"id":34,"phone":"156767676734","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 4, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k37, value = {"id":37,"phone":"156767676737","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 1, leaderEpoch = 0, offset = 5, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k64, value = {"id":64,"phone":"156767676764","birthday":1724559582077})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 0, CreateTime = 1724559582063, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k1, value = {"id":1,"phone":"15676767671","birthday":1724559582062})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 1, CreateTime = 1724559582070, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k14, value = {"id":14,"phone":"156767676714","birthday":1724559582069})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 2, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k22, value = {"id":22,"phone":"156767676722","birthday":1724559582072})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 3, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k38, value = {"id":38,"phone":"156767676738","birthday":1724559582073})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 2, CreateTime = 1724559582068, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k11, value = {"id":11,"phone":"156767676711","birthday":1724559582068})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 3, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k24, value = {"id":24,"phone":"156767676724","birthday":1724559582072})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 4, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k39, value = {"id":39,"phone":"156767676739","birthday":1724559582074})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 3, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k36, value = {"id":36,"phone":"156767676736","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 5, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k49, value = {"id":49,"phone":"156767676749","birthday":1724559582074})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 4, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k31, value = {"id":31,"phone":"156767676731","birthday":1724559582073})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 6, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k58, value = {"id":58,"phone":"156767676758","birthday":1724559582076})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 4, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k41, value = {"id":41,"phone":"156767676741","birthday":1724559582074})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 7, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k80, value = {"id":80,"phone":"156767676780","birthday":1724559582079})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 5, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k42, value = {"id":42,"phone":"156767676742","birthday":1724559582074})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 8, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k81, value = {"id":81,"phone":"156767676781","birthday":1724559582079})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 5, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k47, value = {"id":47,"phone":"156767676747","birthday":1724559582074})
35---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 7, leaderEpoch = 0, offset = 9, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k93, value = {"id":93,"phone":"156767676793","birthday":1724559582080})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 6, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k46, value = {"id":46,"phone":"156767676746","birthday":1724559582074})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 7, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k53, value = {"id":53,"phone":"156767676753","birthday":1724559582075})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 8, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k55, value = {"id":55,"phone":"156767676755","birthday":1724559582075})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 9, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k70, value = {"id":70,"phone":"156767676770","birthday":1724559582077})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 10, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k71, value = {"id":71,"phone":"156767676771","birthday":1724559582077})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 11, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k72, value = {"id":72,"phone":"156767676772","birthday":1724559582078})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 12, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k74, value = {"id":74,"phone":"156767676774","birthday":1724559582078})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 13, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k84, value = {"id":84,"phone":"156767676784","birthday":1724559582079})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 14, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k85, value = {"id":85,"phone":"156767676785","birthday":1724559582079})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 15, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k94, value = {"id":94,"phone":"156767676794","birthday":1724559582080})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 0, leaderEpoch = 0, offset = 16, CreateTime = 1724559582081, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k98, value = {"id":98,"phone":"156767676798","birthday":1724559582081})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 0, CreateTime = 1724559582063, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k2, value = {"id":2,"phone":"15676767672","birthday":1724559582063})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 1, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k18, value = {"id":18,"phone":"156767676718","birthday":1724559582071})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 2, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k23, value = {"id":23,"phone":"156767676723","birthday":1724559582072})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 3, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k33, value = {"id":33,"phone":"156767676733","birthday":1724559582073})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 6, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k59, value = {"id":59,"phone":"156767676759","birthday":1724559582076})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 7, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k67, value = {"id":67,"phone":"156767676767","birthday":1724559582077})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 8, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k77, value = {"id":77,"phone":"156767676777","birthday":1724559582078})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 9, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k78, value = {"id":78,"phone":"156767676778","birthday":1724559582078})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 2, leaderEpoch = 0, offset = 10, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k86, value = {"id":86,"phone":"156767676786","birthday":1724559582079})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 0, CreateTime = 1724559582067, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k7, value = {"id":7,"phone":"15676767677","birthday":1724559582067})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 1, CreateTime = 1724559582068, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k10, value = {"id":10,"phone":"156767676710","birthday":1724559582068})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 2, CreateTime = 1724559582070, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k15, value = {"id":15,"phone":"156767676715","birthday":1724559582070})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 3, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k25, value = {"id":25,"phone":"156767676725","birthday":1724559582072})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 4, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k28, value = {"id":28,"phone":"156767676728","birthday":1724559582073})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 5, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k48, value = {"id":48,"phone":"156767676748","birthday":1724559582074})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 6, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k50, value = {"id":50,"phone":"156767676750","birthday":1724559582075})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 7, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k75, value = {"id":75,"phone":"156767676775","birthday":1724559582078})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 8, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k79, value = {"id":79,"phone":"156767676779","birthday":1724559582078})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 8, leaderEpoch = 0, offset = 9, CreateTime = 1724559582081, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k97, value = {"id":97,"phone":"156767676797","birthday":1724559582081})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 0, CreateTime = 1724559582030, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k0, value = {"id":0,"phone":"15676767670","birthday":1724559581812})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 1, CreateTime = 1724559582067, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k6, value = {"id":6,"phone":"15676767676","birthday":1724559582066})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 2, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k62, value = {"id":62,"phone":"156767676762","birthday":1724559582076})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 3, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k65, value = {"id":65,"phone":"156767676765","birthday":1724559582077})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 4, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k69, value = {"id":69,"phone":"156767676769","birthday":1724559582077})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 5, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k73, value = {"id":73,"phone":"156767676773","birthday":1724559582078})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 6, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k90, value = {"id":90,"phone":"156767676790","birthday":1724559582080})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 7, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k91, value = {"id":91,"phone":"156767676791","birthday":1724559582080})
37---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 5, leaderEpoch = 0, offset = 8, CreateTime = 1724559582081, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k99, value = {"id":99,"phone":"156767676799","birthday":1724559582081})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 4, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k44, value = {"id":44,"phone":"156767676744","birthday":1724559582074})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 5, CreateTime = 1724559582078, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k76, value = {"id":76,"phone":"156767676776","birthday":1724559582078})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 3, leaderEpoch = 0, offset = 6, CreateTime = 1724559582081, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k96, value = {"id":96,"phone":"156767676796","birthday":1724559582080})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 0, CreateTime = 1724559582065, serialized key size = 2, serialized value size = 55, headers = RecordHeaders(headers = [], isReadOnly = false), key = k3, value = {"id":3,"phone":"15676767673","birthday":1724559582064})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 1, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k20, value = {"id":20,"phone":"156767676720","birthday":1724559582072})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 2, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k32, value = {"id":32,"phone":"156767676732","birthday":1724559582073})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 3, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k40, value = {"id":40,"phone":"156767676740","birthday":1724559582074})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 4, CreateTime = 1724559582074, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k45, value = {"id":45,"phone":"156767676745","birthday":1724559582074})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 5, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k51, value = {"id":51,"phone":"156767676751","birthday":1724559582075})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 6, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k60, value = {"id":60,"phone":"156767676760","birthday":1724559582076})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 7, CreateTime = 1724559582077, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k66, value = {"id":66,"phone":"156767676766","birthday":1724559582077})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 8, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k83, value = {"id":83,"phone":"156767676783","birthday":1724559582079})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 9, CreateTime = 1724559582079, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k87, value = {"id":87,"phone":"156767676787","birthday":1724559582079})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 6, leaderEpoch = 0, offset = 10, CreateTime = 1724559582080, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k95, value = {"id":95,"phone":"156767676795","birthday":1724559582080})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 0, CreateTime = 1724559582068, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k12, value = {"id":12,"phone":"156767676712","birthday":1724559582068})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 1, CreateTime = 1724559582072, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k26, value = {"id":26,"phone":"156767676726","birthday":1724559582072})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 2, CreateTime = 1724559582073, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k35, value = {"id":35,"phone":"156767676735","birthday":1724559582073})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 3, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k52, value = {"id":52,"phone":"156767676752","birthday":1724559582075})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 4, CreateTime = 1724559582075, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k54, value = {"id":54,"phone":"156767676754","birthday":1724559582075})
33---> 消费消息 record = ConsumerRecord(topic = myTopic, partition = 9, leaderEpoch = 0, offset = 5, CreateTime = 1724559582076, serialized key size = 3, serialized value size = 57, headers = RecordHeaders(headers = [], isReadOnly = false), key = k61, value = {"id":61,"phone":"156767676761","birthday":1724559582076})

4、StickyAssignor（粘性分配）和CooperativeStickyAssignor（协作分区）消息者消费分区策略

4.1、修改kafka配置类

只需要修改kafka配置文件中指定的消息消费分区器即可，其余与章节3代码一致

4.2、kafka配置类

package com.power.config;

import org.apache.kafka.clients.admin.NewTopic;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.RoundRobinAssignor;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class KafkaConfig {

    @Value("${spring.kafka.bootstrap-servers}")
    private String bootstrapServers;

    @Value("${spring.kafka.consumer.key-deserializer}")
    private String keyDeserializer;

    @Value("${spring.kafka.consumer.value-deserializer}")
    private String valueDeserializer;

    @Value("${spring.kafka.consumer.auto-offset-reset}")
    private String autoOffsetReset;

    /**
     * 消费者相关配置
     * @return
     */
    public Map<String,Object> consumerConfigs(){
        Map<String,Object> props = new HashMap<>();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,bootstrapServers);
        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,keyDeserializer);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,valueDeserializer);
        props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG,autoOffsetReset);
        //指定使用轮询的消息消费分区器
        props.put(ConsumerConfig.PARTITION_ASSIGNMENT_STRATEGY_CONFIG, RoundRobinAssignor.class.getName());
        return props;
    }

    /**
     * 消费者创建工厂
     */
    @Bean
    public ConsumerFactory<String,String> consumerFactory(){
        return new DefaultKafkaConsumerFactory<>(consumerConfigs());
    }

    /**
     * 创建监听器容器工厂
     * @param ourConsumerFactory
     * @return
     */
    @Bean
    public KafkaListenerContainerFactory<?> ourKafkaListenerContainerFactory(ConsumerFactory<String,String> ourConsumerFactory){
        ConcurrentKafkaListenerContainerFactory<String,String> listenerContainerFactory = new ConcurrentKafkaListenerContainerFactory<>();
        listenerContainerFactory.setConsumerFactory(ourConsumerFactory);
        return listenerContainerFactory;
    }

    @Bean
    public NewTopic newTopic(){
        return new NewTopic("myTopic",10, (short)1);
    }
}