SpringBoot下kafka配置生产者和消费者

KafkaResourceConfiguration.java

package its.uts.kafkatest;

import lombok.Data;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.*;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;

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


@Data
public abstract class KafkaResourceConfiguration {


    
    public Map producerConfigs() {
        Map props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:9092");
        props.put(ProducerConfig.RETRIES_CONFIG, 0);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG, 16384);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, 33554432);
        props.put(ProducerConfig.ACKS_CONFIG, "1");
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        return props;
    }

    Integer num=5000;
    
    public Map consumerConfigs() {
        Map propsMap = new HashMap<>();
        propsMap.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:9092");
        propsMap.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG,true);
        propsMap.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, 5000);
        propsMap.put(ConsumerConfig.GROUP_ID_CONFIG,"FLOWAC_0_DEV_WXD");
        propsMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "latest");
        propsMap.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        return propsMap;
    }

    
    public ProducerFactory producerFactory() {
        return new DefaultKafkaProducerFactory<>(producerConfigs());
    }

    
    public ConsumerFactory consumerFactory() {
        return new DefaultKafkaConsumerFactory<>(consumerConfigs());
    }

    public KafkaListenerContainerFactory> kafkaListenerFactory() {
        ConcurrentKafkaListenerContainerFactory factory =
                new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory());
        factory.getContainerProperties().setPollTimeout(1500);
        return factory;
    }

    public KafkaTemplate kafkaTemplate() {
        return new KafkaTemplate<>(producerFactory());
    }
}

KafkaOneConfig.java

package its.uts.kafkatest;

import lombok.EqualsAndHashCode;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;
import org.springframework.stereotype.Component;


@EqualsAndHashCode(callSuper = true)
@Component
@ConfigurationProperties(prefix = "kafkaone")
public class KafkaOneConfig extends KafkaResourceConfiguration {

    
    @Override
    @Bean(name = "kafkaOneTemplate")
    public KafkaTemplate kafkaTemplate() {
        return super.kafkaTemplate();
    }

    
    @Override
    @Bean(name = "kafkaOneListenerFactory")
    public KafkaListenerContainerFactory> kafkaListenerFactory() {
        return super.kafkaListenerFactory();
    }
}

PushListener.java

package its.uts.kafkatest;


import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;

import java.util.Optional;

@Component
@Slf4j
public class PushListener {
    
    @KafkaListener(topics = "test", containerFactory = "kafkaOneListenerFactory")
    public void test2(ConsumerRecord record) {
        Optional kafkaMessage = Optional.ofNullable(record.value());
        if (!kafkaMessage.isPresent()) {
            return;
        }
        String message = (String) kafkaMessage.get();
        JSONObject dataJo = JSONObject.parseObject(message);
        System.out.println(dataJo);
    }
}