channel.basicPublish("delayed-exchange","delayed-queue", properties,"Hello, delayed queue!".getBytes()); 在上述代碼中,設(shè)置了消息的expiration屬性為 5000 毫秒,并將消息發(fā)送到delayed-exchange交換機(jī)上,路由鍵為delayed-queue,消息內(nèi)容為 "Hello, delayed queue!"。
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