out.println("消费消息:" + order.getName()); // int a = 1 / 0; channel.basicAck(message.getMessageProperties().getDeliveryTag(), true); System.out.println("消费消息确认" + message.getMessageProperties().getConsumerQueue() + ",接收到了回调方法"); } catch (Exception e) { //重新...
One day, the Jade Emperor said the zodiac order would be decided by the order in which the animals arrived at his party. Rabbit set off at daybreak. But when he got there, no other animals were in sight. Thinking that he would obviously be first, he went off to the side and napped...
@RabbitListener(queues="order:fail")public void handleFailed(OrderDTO msg){LOG.info("Get failed order:{}",msg);Orderorder;if(msg.getId()==null){order=newOrder(msg);order.setReason("TICKET_LOCK_FAIL");}else{order=orderRepository.getById(msg.getId());if(msg.getStatus().equals("NOT_ENOU...
AI代码解释 @RestControllerpublicclassGoodsController{@AutowiredprivateAmqpTemplate amqpTemplate;@GetMapping("/test/{id}")publicStringgoodsTest(@PathVariable Integer id){Order order=newOrder(id,"xx");amqpTemplate.convertAndSend("GOODS","",order);System.out.println(order);return"成功";}} 消费者监听 ...
select*fromt_orderwhereorder_no ='THIS_ORDER_NO'forupdate//开启事务if(order.status !=null) {return;//消息重复,直接返回} 但这样消费的逻辑会因为引入了事务包裹而导致整个消息消费可能变长,并发度下降。 当然还有其他更高级的解决方案,例如更新订单状态采取乐观锁,更新失败则消息重新消费之类的。
*代表一个词 例子: order.#会匹配order.log,order.log.info等等 order.*会匹配order.log,order.new等等 4. 生产者发送消息需要指定具体路由键 交换机和队列绑定使用通配符路由键 如图: 代码: 1.添加生产者代码 View Code 2.添加消费者代码 View Code...
然后我们向该Exchange中发送一条消息,消息的Routing key为:USER.ABC.ORDER。 按照规则分析,USER.ABC.ORDER这个Routing key只可以匹配到 “USER.#” ,所以,这条消息应该被路由到MY_TOPIC_USER_QUEUE这个Queue中。消息发送成功之后,我们去Queues中查看,发现结果...
one day, the jade emperor said the zodiac order would be decided by the order in which the animals arrived at his party. rabbit set off at daybreak. but when he got there, no other animals were in sight. thinking that he would obviously be first, he went off to the side and napped...
然后我们向该Exchange中发送一条消息,消息的Routing key是ORDER: 按照规则分析,这条消息应该被路由到MY_EXCHANGE_ORDER_QUEUE这个Queue。消息发送成功之后,我们去Queues中查看,发现确实只有MY_EXCHANGE_ORDER_QUEUE这个QUEUE接收到了一条消息。 进入这个队列,通过getMessage取出消息查看,确实是我们刚才手动发送的那条消息。
This feature adds the ability to RabbitMQ to have multiple concurrent clients each consuming only a subset of messages while maintaining message order. It also reduces network traffic between RabbitMQ and clients by only dispatching those messages that the clients are actually interested in. ...