首页 > 软件编程 > java > SpringBoot kafka多源配置

SpringBoot实现kafka多源配置的示例代码

2024-06-06 10:42:53 作者：it噩梦

实际开发中,不同的topic可能来自不同的集群,所以就需要配置不同的kafka数据源,基于springboot自动配置的思想,最终通过配置文件的配置,自动生成生产者及消费者的配置,本文介绍了SpringBoot实现kafka多源配置,需要的朋友可以参考下

背景

实际开发中，不同的topic可能来自不同的集群，所以就需要配置不同的kafka数据源，基于springboot自动配置的思想，最终通过配置文件的配置，自动生成生产者及消费者的配置。

核心配置

自动化配置类

import com.example.kafka.autoconfig.CustomKafkaDataSourceRegister;
import com.example.kafka.autoconfig.kafkaConsumerConfig;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.config.SmartInstantiationAwareBeanPostProcessor;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.kafka.annotation.EnableKafka;

@EnableKafka
@Configuration(
        proxyBeanMethods = false
)
@ConditionalOnWebApplication
@EnableConfigurationProperties({kafkaConsumerConfig.class})
@Import({CustomKafkaDataSourceRegister.class})
public class MyKafkaAutoConfiguration implements BeanFactoryAware, SmartInstantiationAwareBeanPostProcessor {
    public MyKafkaAutoConfiguration() {
    }

    public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
        beanFactory.getBean(CustomKafkaDataSourceRegister.class);
    }
}

注册生产者、消费者核心bean到spring

public void afterPropertiesSet() {
        Map<String, ConsumerConfigWrapper> factories = kafkaConsumerConfig.getFactories();
        if (factories != null && !factories.isEmpty()) {
            factories.forEach((factoryName, consumerConfig) -> {
                KafkaProperties.Listener listener = consumerConfig.getListener();
                Integer concurrency = consumerConfig.getConcurrency();
                // 创建监听容器工厂
                ConcurrentKafkaListenerContainerFactory<String, String> containerFactory = createKafkaListenerContainerFactory(consumerConfig.buildProperties(), listener, concurrency);
                // 注册到容器
                if (!beanFactory.containsBean(factoryName)) {
                    beanFactory.registerSingleton(factoryName, containerFactory);
                }
            });
        }
        Map<String, KafkaProperties.Producer> templates = kafkaProducerConfig.getTemplates();
        if (!ObjectUtils.isEmpty(templates)) {
            templates.forEach((templateName, producerConfig) -> {
                //registerBean(beanFactory, templateName, KafkaTemplate.class, propertyValues);
                //注册spring bean的两种方式
                registerBeanWithConstructor(beanFactory, templateName, KafkaTemplate.class, producerFactoryValues(producerConfig.buildProperties()));
            });
        }
    }

配置spring.factories

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.example.kafka.MyKafkaAutoConfiguration

yml配置

spring:
  kafka:
    multiple:
      consumer:
        factories:
          test-factory:
            key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
            value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
            bootstrap-servers: 192.168.56.112:9092
            group-id: group_a
            concurrency: 25
            fetch-min-size: 1048576
            fetch-max-wait: 3000
            listener:
              type: batch
            properties:
              spring-json-trusted-packages: '*'
        key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
        value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
        auto-offset-reset: latest
      producer:
        templates:
          test-template:
            bootstrap-servers: 192.168.56.112:9092
            key-serializer: org.apache.kafka.common.serialization.StringSerializer
            value-serializer: org.apache.kafka.common.serialization.StringSerializer
        key-serializer: org.apache.kafka.common.serialization.StringSerializer
        value-serializer: org.apache.kafka.common.serialization.StringSerializer

使用

在这里插入图片描述

到此这篇关于SpringBoot实现kafka多源配置的示例代码的文章就介绍到这了,更多相关SpringBoot kafka多源配置内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！