@KafkaListener注解 beanRef
时间: 2023-09-28 21:14:16 浏览: 178
回答: @KafkaListener注解中的beanRef属性用于指定监听器方法所在的bean的名称,它可以通过名称引用已经在Spring应用上下文中注册的bean。在遍历所有的@KafkaListener注解后,会调用processKafkaListener方法,其中会根据注解和bean生成endpoint和method,并将监听器方法所在的bean注册到监听器作用域中。然后,在processListener方法中,会将每个@KafkaListener注解转换为MethodKafkaListenerEndpoint并注册到KafkaListenerEndpointRegistrar容器中,方便后续统一启动监听。所以,beanRef属性可以用来指定监听器方法所在的bean的名称,以便注册和管理监听器。<em>1</em><em>2</em><em>3</em>
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