[英]Spring and AMQP RabbitMQ topic exchange not working
我正在嘗試在我的春季應用程序上設置主題交流。 這是我的上下文配置:
@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");
}
}
這是接收器類:
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;
}
}
這是發件人代碼:
@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";
}
因此,我正在使用綁定鍵“ ru.interosite.1”將消息發送到主題交換,並使用模式“ ru.interosite。*”將其綁定到隊列。 當嘗試從https://www.rabbitmq.com/tutorials/tutorial-five-java.html進行采樣時,我使用了這些鍵和模式,它們工作正常。
但是在String AMQP內部它不起作用,即接收器永遠不會被調用。 僅當綁定鍵和模式與我在使用DirectExchange時完全相同時才調用它。
我在這里想念什么嗎?
您沒有顯示RabbitTemplate
的配置,但我想它是帶有默認選項的。
要將消息發送到my-exchange
,必須直接指定它:
rabbitTemplate.convertAndSend("my-exchange", "ru.interosite.1", "ttt1233");
您還可以在Rabbit模板中設置交換,如下所示:
@Configuration
public class IntegrationConfig {
// ... as above
@Bean
public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
RabbitTemplate template = new RabbitTemplate(connectionFactory);
template.setExchange("my-exchange");
return template;
}
}
因此,您可以通過以下方式發送消息:
public class MyController {
@Autowired
RabbitTemplate rabbitTemplate;
@RequestMapping("/sendmessage")
@ResponseBody
public String sendMessage() {
rabbitTemplate.convertAndSend("ru.interosite.1", "ttt1233");
// ... as above
}
}
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