SpringBoot集成RabbitMQ使用Json格式

RabbitMQ默认使用的java的序列化工具，这里在SpringBoot中改为json格式

import org.springframework.amqp.rabbit.annotation.RabbitListenerConfigurer;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.RabbitListenerEndpointRegistrar;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.converter.MappingJackson2MessageConverter;
import org.springframework.messaging.handler.annotation.support.DefaultMessageHandlerMethodFactory;
import org.springframework.messaging.handler.annotation.support.MessageHandlerMethodFactory;

/**
 * 使用json格式传送消息
 * @author Qbit
 */
@Configuration
@ConditionalOnClass(RabbitTemplate.class)
public class RabbitJsonConfigurer implements RabbitListenerConfigurer {

    @Bean
    public RabbitTemplate rabbitTemplate(final ConnectionFactory connectionFactory) {
        final RabbitTemplate out = new RabbitTemplate(connectionFactory);
        out.setMessageConverter(jackson2JsonMessageConverter);
        return out;
    }

    @Override
    public void configureRabbitListeners(RabbitListenerEndpointRegistrar registrar) {
        registrar.setMessageHandlerMethodFactory(messageHandlerMethodFactory());
    }

    @Bean
    public MessageHandlerMethodFactory messageHandlerMethodFactory() {
        return defaultMessageHandlerMethodFactory;
    }
    private final MappingJackson2MessageConverter mappingJackson2MessageConverter=new MappingJackson2MessageConverter();
    private final DefaultMessageHandlerMethodFactory defaultMessageHandlerMethodFactory
            = new DefaultMessageHandlerMethodFactory();
    private final Jackson2JsonMessageConverter jackson2JsonMessageConverter
            =new Jackson2JsonMessageConverter();
    {
        defaultMessageHandlerMethodFactory.setMessageConverter(mappingJackson2MessageConverter);
    }
    @Bean
    public MappingJackson2MessageConverter consumerJackson2MessageConverter() {
        return mappingJackson2MessageConverter;
    }
}

然后业务代码中使用注入的amqpTemplate执行 convertAndSend(EXCHANGE,TOPIC,obj)方法即可，第三个参数是一个对象