Delayed Message Exchange

Spring AMQP supports the RabbitMQ Delayed Message Exchange Plugin. For inbound messages, the x-delay header is mapped to the AmqpHeaders.RECEIVED_DELAY header. Setting the AMQPHeaders.DELAY header causes the corresponding x-delay header to be set in outbound messages. You can also specify the delay and delayExpression properties on outbound endpoints (delay-expression when using XML configuration). These properties take precedence over the AmqpHeaders.DELAY header.spring-doc.cn