Question

我试图在我的春季应用上设置主题交换。这是我的上下文配置：



    @Configuration
    public class IntegrationConfig {

        public final static String queueName = "my-queue";

        @Bean
        AmqpAdmin amqpAdmin(ConnectionFactory connectionFactory) {
            return new RabbitAdmin(connectionFactory);

        }

        @Bean
        Queue queue() {
            return new Queue(queueName);
        }

        @Bean
        TopicExchange exchange() {
            return new TopicExchange("my-exchange", false, true);
        }

        @Bean
        Binding binding(Queue queue, TopicExchange exchange) {
            return BindingBuilder.bind(queue).to(exchange).with("ru.interosite.*");
        }

        @Bean
        SimpleMessageListenerContainer container(ConnectionFactory connectionFactory, MessageListenerAdapter listenerAdapter) {
            SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
            container.setConnectionFactory(connectionFactory);
            container.setQueueNames(queueName);
            container.setMessageListener(listenerAdapter);
            return container;
        }

        @Bean
        ImageUploadReceiver receiver() {
            return new ImageUploadReceiver();
        }

        @Bean
        MessageListenerAdapter listenerAdapter(ImageUploadReceiver receiver) {
            return new MessageListenerAdapter(receiver, "receiveMessage");
        }

    }

这是接收器类：



    public class ImageUploadReceiver {
        private CountDownLatch latch = new CountDownLatch(1);

        public void receiveMessage(String message) {
            System.out.println("Received ");
            latch.countDown();
        }

        public CountDownLatch getLatch() {
            return latch;
        }
    }

这是发件人代码：



    @RequestMapping("/sendmessage")
    @ResponseBody
    public String sendMessage() {
        rabbitTemplate.convertAndSend("ru.interosite.1", "ttt1233");
        try {
            imageUploadReceiver.getLatch().await(3, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "Msg received";
    }

所以我使用绑定密钥＆＃34; ru.interosite.1＆＃34;向主题交换发送消息。到与模式绑定的队列＆＃34; ru.interosite。*＆＃34;。当我从https://www.rabbitmq.com/tutorials/tutorial-five-java.html尝试样本时，我使用了这些键和模式，并且它们工作正常。

但在String AMQP中它不起作用，即接收器永远不会被调用。只有当绑定密钥和模式与我使用DirectExchange时完全相同时，它才会调用。

我在这里错过了什么吗？

Answer 1

您没有显示RabbitTemplate的配置，但我猜它是默认选项。

要向my-exchange发送消息，您必须直接指定：

rabbitTemplate.convertAndSend("my-exchange", "ru.interosite.1", "ttt1233");

Answer 2

您也可以在兔子模板中设置交换：

@Configuration
public class IntegrationConfig {

    // ... as above

    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate template = new RabbitTemplate(connectionFactory);
        template.setExchange("my-exchange");
        return template;
    }

}

所以你可以发送消息：

public class MyController {

    @Autowired
    RabbitTemplate rabbitTemplate;

    @RequestMapping("/sendmessage")
    @ResponseBody
    public String sendMessage() {
        rabbitTemplate.convertAndSend("ru.interosite.1", "ttt1233");
        // ... as above
    }

}

Spring和AMQP RabbitMQ主题交换不起作用

2 个答案: