如何在 RABBITMQ 中为消费者端设置时间

Question

这是我的代码，我在 autoDelete 两个队列上设置了 true ，交换最终发布在几分钟内没有向消费者发送任何消息，此时我想自动停止消费者端，也许你没有完全理解我的句子。

我如何设置 ^^

以及如何在服务器端获取文档对象（doc）

 public void initConsumer() {
  try {
   ConnectionFactory factory = new ConnectionFactory();
   Connection connection = factory.newConnection();
   Channel channel = connection.createChannel();
   channel.queueDeclare(this.queueName, this.maintain, false, this.queueAutoDelete, null);
   channel.exchangeDeclare(this.exchangeName, this.exchangeType, this.maintain, this.exchangeAutoDelete, null);
    channel.queueBind(this.queueName, this.exchangeName, this.routingKey);
    QueueingConsumer consumer = new QueueingConsumer(channel);
   channel.basicConsume(this.queueName, false, consumer);
   while (true) {

    QueueingConsumer.Delivery delivery = consumer.nextDelivery();

    System.out.println(" [x] Received "
      + new String(delivery.getBody()));

    channel
      .basicAck(delivery.getEnvelope().getDeliveryTag(),
        false);
    }
  } catch (Exception e) {
   System.out.println("Exception error at initConsumer()");
  }
 }

Answer 1

您可以使用具有超时参数的 nextDelivery() 的重载版本：

QueueingConsumer.Delivery delivery = null;
long timeout = 2 * 60 * 1000; // 2 minutes in milliseconds
delivery = queuingConsumer.nextDelivery(timeout);
if (delivery == null) {
  // shut down your consumer here - no events arrived
  // before the timeout was reached
}
else {
  // process the delivered message here
}

希望有所帮助。