springboot中rabbitmq实现消息可靠性机制详解_java

    org.springframework.boot
    spring-boot-starter-amqp



    com.fasterxml.jackson.core
    jackson-databind

spring.rabbitmq.host=10.128.240.183
spring.rabbitmq.port=5672
spring.rabbitmq.virtual-host=/
        
spring.rabbitmq.publisher-confirm-type=correlated
        
spring.rabbitmq.publisher-returns=true
        
spring.rabbitmq.template.mandatory=true

@Slf4j
@Configuration
public class CommonConfig implements ApplicationContextAware {
 
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        // 获取RabbitTemplate对象
        RabbitTemplate rabbitTemplate = applicationContext.getBean(RabbitTemplate.class);
        // 配置ReturnCallback
        rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> {
            // 判断是否是延迟消息
            Integer receivedDelay = message.getMessageProperties().getReceivedDelay();
            if (receivedDelay != null && receivedDelay > 0) {
                // 是一个延迟消息，忽略这个错误提示
                return;
            }
            // 记录日志
            log.error("消息发送到队列失败，响应码：{}, 失败原因：{}, 交换机: {}, 路由key：{}, 消息: {}",
                     replyCode, replyText, exchange, routingKey, message.toString());
            // 如果有需要的话，重发消息
        });
    }
}

@Slf4j
@Configuration
public class CommonConfig implements ApplicationContextAware {
 
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        // 获取RabbitTemplate对象
        RabbitTemplate rabbitTemplate = applicationContext.getBean(RabbitTemplate.class);
        // 配置ReturnCallback
        rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> {
            // 判断是否是延迟消息
            Integer receivedDelay = message.getMessageProperties().getReceivedDelay();
            if (receivedDelay != null && receivedDelay > 0) {
                // 是一个延迟消息，忽略这个错误提示
                return;
            }
            // 记录日志
            log.error("消息发送到队列失败，响应码：{}, 失败原因：{}, 交换机: {}, 路由key：{}, 消息: {}",
                     replyCode, replyText, exchange, routingKey, message.toString());
            // 如果有需要的话，重发消息
        });
 
        
        // 设置统一的confirm回调。只要消息到达broker就ack=true
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean b, String s) {
                System.out.println("这是统一的回调");
                System.out.println("correlationData:" + correlationData);
                System.out.println("ack:" + b);
                System.out.println("cause:" + s);
            }
        });
    }
}

 @Autowired
    private RabbitTemplate rabbitTemplate;
 
    @Test
    public void testmq() throws InterruptedException {
 
 
        CorrelationData correlatiOnData= new CorrelationData(UUID.randomUUID().toString());
 
        correlationData.getFuture().addCallback(result->{
            if (result.isAck()) {
                // ACK
                log.debug("消息成功投递到交换机！消息ID: {}", correlationData.getId());
            } else {
                // NACK
                log.error("消息投递到交换机失败！消息ID：{}", correlationData.getId());
                // 重发消息
            }
        },ex->{
            // 记录日志
            log.error("消息发送失败！", ex);
            // 重发消息
        });
        rabbitTemplate.convertAndSend("example.direct","blue","hello,world",correlationData);
    }

# 手动ack消息，不使用默认的消费端确认
spring.rabbitmq.listener.simple.acknowledge-mode=manual

@RabbitListener(queues = "order.release.order.queue")
@Service
public class OrderCloseListener {
 
    @Autowired
    private OrderService orderService;
 
 
    @RabbitHandler
    private void listener(OrderEntity orderEntity, Channel channel, Message message) throws IOException {
        System.out.println("收到过期的订单信息，准备关闭订单" + orderEntity.getOrderSn());
 
        try {
            orderService.closeOrder(orderEntity);
            // 第二个参数为false则表示仅确认此条消息。如果为true则表示对收到的多条消息同时确认
            channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
        } catch (Exception e) {
            // 第二个参数为ture表示将这个消息重新加入队列
            channel.basicReject(message.getMessageProperties().getDeliveryTag(), true);
        }
    }
}

spring:
  rabbitmq:
    listener:
      simple:
        retry:
          enabled: true # 开启消费者失败重试
          initial-interval: 1000 # 初识的失败等待时长为1秒
          multiplier: 1 # 失败的等待时长倍数，下次等待时长 = multiplier * last-interval
          max-attempts: 3 # 最大重试次数
          stateless: true # true无状态；false有状态。如果业务中包含事务，这里改为false

@Bean
public DirectExchange errorMessageExchange(){
    return new DirectExchange("error.direct");
}
@Bean
public Queue errorQueue(){
    return new Queue("error.queue", true);
}
 
// 路由键为key
@Bean
public Binding errorBinding(Queue errorQueue, DirectExchange errorMessageExchange){
    return BindingBuilder.bind(errorQueue).to(errorMessageExchange).with("error");
}

@Bean
public MessageRecoverer republishMessageRecoverer(RabbitTemplate rabbitTemplate){
    // error为路由键
    return new RepublishMessageRecoverer(rabbitTemplate, "error.direct", "error");
}