springBoot2.x快速集成RabbitMQ

• 一、公共部分-MQ配置集成
• 二、生产者
• • 1、生产者-公共父类
  • 2、自定义队列1的子类
• 三、消费者
• • 1、监听队列

申明队列、绑定队列的操作，无论是在消费者端和生产者端写都可以的，只要写了这部分操作的代码所在的服务先启动，就会去MQ服务端创建了。
建议不知道哪个服务先启动，就两个服务都写也没有问题，幂等的，不会得复创建。

package com.epay.fsc.ucms.rbhs.provider.configuration;

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.EnableRabbit;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.*;


@Configuration
@EnableRabbit
public class RabbitMqConfiguration {

    @Value("${rbhs.rabbitMq.address}")
    private String address;
    @Value("${rbhs.rabbitMq.userName}")
    private String userName;
    @Value("${rbhs.rabbitMq.password}")
    private String password;
    @Value("${rbhs.rabbitMq.vhost}")
    private String vhost;

    //处理交换器
    @Value("${rbhs.rabbitMq.exchange:fsc-ucms-x_piq}")
    public String exchangeXPiq;
    //入金queue-rbhs推向Piq
    @Value("${rbhs.rabbitMq.queue.piqRbhs:fsc-ucms-q_piq_rbhs}")
    public String queuePiqRbhs;
    @Value("${rbhs.rabbitMq.routingKey.piqRbhs:fsc-ucms-key_piq_rbhs}")
    public String routingKeyPiqRbhs;
    //入金queue-Piq响应rbhs
    @Value("${rbhs.rabbitMq.queue.piqRbhsAck:fsc-ucms-q_piq_rbhs_ack}")
    public String queuePiqRbhsAck;
    @Value("${rbhs.rabbitMq.routingKey.piqRbhsAck:fsc-ucms-key_piq_rbhs_ack}")
    public String routingKeyPiqRbhsAck;


    
    @Bean("rabbitTemplate")
    @Scope(value =ConfigurableBeanFactory.SCOPE_PROTOTYPE,proxyMode = ScopedProxyMode.TARGET_CLASS)
    public RabbitTemplate sendRbhsAckRabbitTemplate() {
        RabbitTemplate template = new RabbitTemplate(rbhsConnectionFactory());
        return template;
    }

    
    @Bean(name = "rbhsConnectionFactory")
    public ConnectionFactory rbhsConnectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setAddresses(address);
        connectionFactory.setUsername(userName);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost(vhost);
        //与rbhsRabbitTemplate.setConfirmCallback(this)组合使用开启发送确认机制-判断是否成功到达交换机
        connectionFactory.setPublisher/confirm/is(true);
        //与rbhsRabbitTemplate.setReturnCallback(this)组合使用开启发送确认机制-判断是否成功到达队列
        connectionFactory.setPublisherReturns(true);
        return connectionFactory;
    }

    
    @Bean(name = "rabbitListenerContainerFactory")
    public SimpleRabbitListenerContainerFactory rbhsListenerContainer(@Qualifier("rbhsConnectionFactory") ConnectionFactory firstConnectionFactory) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        factory.setConnectionFactory(firstConnectionFactory);
        //手动确认
        factory.setAcknowledgeMode(AcknowledgeMode.MANUAL);
        //默认消费者数量
        factory.setConcurrentConsumers(3);
        //最大消费者数量
        factory.setMaxConcurrentConsumers(3);
        //消息预取:每次给消费者发送的消息数量（默认会全量一次发消费者）
        factory.setPrefetchCount(1);
        factory.setDefaultRequeueRejected(true);
        return factory;
    }

    
    @Bean
    public DirectExchange exchangeRbhs() {
        return new DirectExchange(exchangeXPiq);
    }

    
    @Bean
    public Queue queueRbhs1() {
        return new Queue(queuePiqRbhs, true);
    }

    
    @Bean
    public Binding bindingQueueRbhs1() {
        return BindingBuilder.bind(queueRbhs1()).to(exchangeRbhs()).with(routingKeyPiqRbhs);
    }


    
    @Bean
    public Queue queueRbhs2() {
        return new Queue(queuePiqRbhsAck, true);
    }

    
    @Bean
    public Binding bindingQueueRbhs2() {
        return BindingBuilder.bind(queueRbhs2()).to(exchangeRbhs()).with(routingKeyPiqRbhsAck);
    }
}

package com.epay.fsc.ucms.rbhs.provider.util.mq;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.support.CorrelationData;
import org.springframework.beans.factory.annotation.Autowired;

import javax.annotation.PostConstruct;


public abstract class RabbitMqSender implements RabbitTemplate./confirm/iCallback, RabbitTemplate.ReturnCallback {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    //初始配置为prototype（若rabbitTemplate为单例的话，那set/confirm/iCallback、setReturnCallback就会覆盖）
    @Autowired
    public RabbitTemplate rabbitTemplate;

    //初始设置回调类
    @PostConstruct
    public void init() {
        //指定 判断是否成功到达交换机
        rabbitTemplate.set/confirm/iCallback(this);
        //指定 判断是否成功到达队列
        rabbitTemplate.setReturnCallback(this);
    }

    
    @Override
    public void /confirm/i(CorrelationData correlationData, boolean ack, String cause) {
        logger.info(" 回调id:" + correlationData);
        if (ack) {
            logger.info("消息发送至交换机-成功");
        } else {
            //todo 重推/告警
            logger.error("消息发送至交换机-失败:原因={}", cause);
        }
    }

    
    @Override
    public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
        //todo 重推/告警
        logger.error("消息发送至队列失败-失败:原因={}", message);
    }

    
    public abstract void convertAndSend(String id, String content);
}

package com.epay.fsc.ucms.rbhs.provider.util.mq.rbhs;

import com.epay.fsc.ucms.rbhs.provider.configuration.RabbitMqConfiguration;
import com.epay.fsc.ucms.rbhs.provider.util.mq.RabbitMqSender;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.support.CorrelationData;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;


@Component("rabbitMqSenderRbhs")
public class RabbitMqSenderRbhs extends RabbitMqSender {


    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Autowired
    RabbitMqConfiguration rabbitMqConfiguration;


    @Override
    public void convertAndSend(String id, String content) {
        CorrelationData correlationId = new CorrelationData(id);
        //把消息放入routingKey对应的队列当中
        rabbitTemplate.convertAndSend(rabbitMqConfiguration.exchangeXPiq, rabbitMqConfiguration.routingKeyPiqRbhs, content, correlationId);
    }
}

使用的时候，调用rabbitMqSenderRbhs.convertAndSend方法就行了

package com.epay.fsc.ucms.piq.provider.util.mq.rbhs;

import com.alibaba.fastjson.JSON;
import com.epay.fsc.ucms.piq.provider.constant.AlarmConstant;
import com.epay.fsc.ucms.piq.provider.entity.FmsPiq;
import com.epay.fsc.ucms.piq.provider.model.*;
import com.epay.fsc.ucms.piq.provider.service.MqAckService;
import com.epay.fsc.ucms.piq.provider.service.MqConsumerService;
import com.rabbitmq.client.Channel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.util.UUID;



@Component
public class RabbitMqReceiverRbhs {
    protected final String TAG = "[消费响应操作-Rbhs]";
    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Autowired
    private MqAckService mqAckService;
    @Autowired
    MqConsumerService mqConsumerRbhsService;
    @Autowired
    public AlarmConstant alarmConstant;

    @RabbitListener(containerFactory = "rabbitListenerContainerFactory", queues = "${piq.rabbitMq.queue.piqRbhs:fsc-ucms-q_piq_rbhs}")
    @RabbitHandler
    public void process(Channel channel, String content, Message message) {
        String requestId = UUID.randomUUID().toString();
        logger.info("{}接收处理队列当中的消息： requestId={},content={} ", TAG, requestId, content);
        //消息消费
        MqConsumerReq mqConsumerReq = MqConsumerReq.builder().requestId(requestId).content(content).build();
        baseResponse result = mqConsumerRbhsService.process(mqConsumerReq);
        if (!result.isOk()) {
            //失败则重试一次
            result = mqConsumerRbhsService.process(mqConsumerReq);
        }
        if (!result.isOk()) {
            //告警
            alarmConstant.alarmSys(requestId, new StringBuilder(TAG).append("消息消费异常:content=")
                    .append(mqConsumerReq.getContent()).toString());
        }
        try {
            //进行ack处理,手动ack应答，参数含义：标识哪条信息，是否批量签收
            channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
            logger.info("{}消息签收：requestId={}", TAG, requestId);
        } catch (IOException e) {
            e.printStackTrace();
            logger.error("{}消息签收异常：requestId={},content={},e={}", TAG, requestId, content, e);
        }
        //逆向发送响应队列
        if (result.isOk()) {
            logger.info("{}逆向发送响应队列-start： requestId={},id={}", TAG, requestId, result.getData().getId());
            MqAckReq mqAckReq = MqAckReq.builder().requestId(requestId).content(result.getData().getId()).build();
            baseResponse resultAck = mqAckService.process(mqAckReq);
            if (!resultAck.isOk()) {
                //失败则重试一次
                resultAck =  mqAckService.process(mqAckReq);
            }
            if (!resultAck.isOk()) {
                //告警
                alarmConstant.alarmSys(requestId, new StringBuilder(TAG).append("逆向发送队列异常:content=")
                        .append(content).toString());
            }
            logger.info("{}逆向发送响应队列-end： requestId={},id={},resultAck={} ", TAG, requestId, result.getData().getId(), JSON.toJSONString(resultAck));
        }
    }
}

这里加了一部分是采用逆向推送应答队列的方式来保证一致性。
你也可以改成死信队列，监控告警