RabbitMQ 消息接收确认

RabbitMQ消息确认模式：

• AcknowledgeMode.NONE：不确认
• AcknowledgeMode.AUTO：自动确认
• AcknowledgeMode.MANUAL：手动确认

当设置为手动确认时AcknowledgeMode.MANUAL

RabbitMQ消息监听器接收到消息之后，需进行确认

    @RabbitListener(queues ="${ocos.rabbit.queue}",containerFactory = "rabbitListenerContainerFactory")
    public void onMessage(Message message, Channel channel) {
               try {
            channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
        } catch (IOException e) {
            try {
                e.printStackTrace();
                channel.basicNack(message.getMessageProperties().getDeliveryTag(),false,false);
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
    }

Rabbitmq如下配置，可以设置一个队列多个消费者监听消息：

 @Bean
    public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory() {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory());
        factory.setConcurrentConsumers(3);//对于当前消息队列，设置三个消费者并发监听消费消息
        factory.setMaxConcurrentConsumers(10);
       // factory.setMessageConverter(producerJackson2MessageConverter());
        factory.setAcknowledgeMode(AcknowledgeMode.NONE);//设置确认模式自动确认
        return factory;
    }

参考资料：

RabbitMQ的消息确认机制

rabbitmq 配置多个消费者（转载）