动态添加队列使用者春季问题

如何解决动态添加队列使用者春季问题

我正在尝试以排他模式将新队列添加到现有侦听器，但是出现问题。 代码：

@GetMapping(value = "/consumer")
    public void consumer() {
        Set<String> queue = new HashSet<>(Arrays.asList("Test queue1","Test queue2","Test queue3"));
//        for (int i = 0; i < 10; i++) {
            addQueuetoListener("Test container1",queue);
//        }
    }
public void addQueuetoListener(String containerId,String queueName) {
        SimpleMessageListenerContainer listener = (SimpleMessageListenerContainer)
                rabbitListenerEndpointRegistry.getListenerContainer(containerId);
        if (Objects.nonNull(listener)) {
            String[] queueNames = listener.getQueueNames();
            System.out.println("Queue Names: " + Arrays.toString(queueNames) + " going to Add: " + queueName);
            System.out.println("search result for queue name: " + queueName + "     -->" + Arrays.binarySearch(queueNames,queueName));
            //do not add same queue name to listener
            if (Arrays.binarySearch(queueNames,queueName) < 0) {
                System.out.println("Adding queue: " + queueName);
                listener.addQueueNames(queueName);
                System.out.println("added queue: " + queueName);
            }
        }
    }

    public void addQueuetoListener(String containerId,Set<String> queueName) {
        for (String queue : queueName) {
            addQueuetoListener(containerId,queue);
        }
    }

兔子监听器代码：

@RabbitListener(id = "Test container1",queues = "#{rabbitMQConsumer.getEntriesQueueName()}",containerFactory = "consumerBatchContainerFactory")
    public void receiveMessageBatch(List<Message> messages) throws InterruptedException,IOException {
        for (Message message : messages) {
            Thread.sleep(30000);
//      ObjectMapper jsonObjectMapper = new ObjectMapper();
//      Employee employee = jsonObjectMapper.readValue(Arrays.toString(message.getBody()),Employee.class);
            String queueName = (String) message.getMessageProperties().getHeaders().get("queueName");
            System.out.println("RabbitMQConsumer.receiveMessage QueueName:" + queueName);
//      System.out.println("Recieved Message From RabbitMQ: " + employee + "      QueueName:"+ queueName);
        }
    }

    public List<String> getEntriesQueueName() {
        return Collections.emptyList();
//        return Arrays.asList("Test queue1","Test queue3");
    }

错误：当我设置listener.setIsExclusive（true）;

Channel shutdown: channel error; protocol method: #method<channel.close>(reply-code=403,reply-text=ACCESS_REFUSED - queue 'Test queue3' in vhost 'my_vhost' in exclusive use,class-id=60,method-id=20)

甚至尝试在Rabbitlistener上设置独家设置

@RabbitListener(id = "Test container1",containerFactory = "consumerBatchContainerFactory",exclusive = true)

但有相同的错误。

代码参考：https://github.com/rajat-g/SpringBootRabbitMQConsumer

解决方法

有一个bug in the listener container when you call addQueueNames，我们最终要回收消费者多次，这是一场竞赛-我们不等待消费者被取消。

改为使用listener.addQueues(new Queue(queueName));。

此外，我将setExclusive移到了容器工厂bean ...

factory.setContainerCustomizer(container -> container.setExclusive(true));