通过 ConfigurationProperties 的 RabbitListener 注释队列名称

问题描述

我已经通过 application.yaml 和 spring configurationProperties 配置了我的 rabbit 属性.因此，当我配置交换、队列和绑定时，我可以使用我的属性的 getter

I have configured my rabbit properties via application.yaml and spring configurationProperties.Thus, when I configure exchanges, queues and bindings, I can use the getters of my properties

@Bean Binding binding(Queue queue, TopicExchange exchange) {
    return BindingBuilder.bind(queue).to(exchange).with(properties.getQueue());
}

@Bean Queue queue() {
    return new Queue(properties.getQueue(), true);
}

@Bean TopicExchange exchange() {
    return new TopicExchange(properties.getExchange());
}

但是，当我配置 @RabbitListener 以从队列中记录消息时，我必须使用完整的属性名称，例如

However, when I configure a @RabbitListener to log the messages on from the queue, I have to use the full properties name like

 @RabbitListener(queues = "${some.long.path.to.the.queue.name}")
 public void onMessage(
            final Message message, final Channel channel) throws Exception {
       log.info("receiving message: {}#{}", message, channel);
    }

我想避免这种容易出错的硬编码字符串，并参考 configurationProperties bean，如:

I want to avoid this error prone hard coded String and refer to the configurationProperties bean like:

@RabbitListener(queues = "${properties.getQueue()}")

我有一个 类似问题 使用 @EventListener 使用 bean 引用"@bean.method()" 有帮助，但在这里不起作用，bean 表达式只是被解释为队列名称，由于队列名称@bean...."不存在而失败.

I had a similar issue once with @EventListener where using a bean reference "@bean.method()" helped, but it does not work here, the bean expression is just interpreted as queue name, which fails because a queue namde "@bean...." does not exist.

是否可以使用 ConfigurationProperty-Beans 进行 RabbitListener 队列配置?

Is it possible to use ConfigurationProperty-Beans for RabbitListener queue configuration?

推荐答案

在我只使用 Bean 和 SpEL 的情况下，类似的方法对我有用.

Something like this worked for me where I just used the Bean and SpEL.

@Autowired
Queue queue;

@RabbitListener(queues = "#{queue.getName()}")

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