* `@Componet`：類上的注解，注冊到Spring容器 * `@RabbitListener`：方法上的注解，聲明這個方法是一個消費者方法，需要指定下面的屬性： * `bindings`：指定綁定關系，可以有多個。值是`@QueueBinding`的數組。`@QueueBinding`包含下面屬性： * `value`：這個消費者關聯的隊列。值是`@Queue`，代表一個隊列 * `exchange`：隊列所綁定的交換機，值是`@Exchange`類型 * `key`：隊列和交換機綁定的`RoutingKey` ~~~ @Component public class Listener { @RabbitListener(bindings = @QueueBinding( value = @Queue(value = "spring.test.queue", durable = "true"), exchange = @Exchange( value = "spring.test.exchange", ignoreDeclarationExceptions = "true", type = ExchangeTypes.TOPIC ), key = {"#.#"} )) public void listen(String msg){ System.out.println("接收消息:"+ msg); } } ~~~