springboot+rabbitmq

```java

@Beanpublic RabbitTemplate rabbitTemplate() { RabbitTemplate rabbitTemplate = new RabbitTemplate(accConnectionFactory()); // 消息是否成功发送到Exchange rabbitTemplate.setConfirmCallback((correlationData, ack, cause) -> { if (ack) { log.info("消息成功发送到Exchange"); String msgId = correlationData.getId(); msgLogService.updateStatus(msgId, Constant.MsgLogStatus.DELIVER_SUCCESS); } else { log.info("消息发送到Exchange失败, {}, cause: {}", correlationData, cause); } }); // 触发setReturnCallback回调必须设置mandatory=true, 否则Exchange没有找到Queue就会丢弃掉消息, 而不会触发回调 rabbitTemplate.setMandatory(true); // 消息是否从Exchange路由到Queue, 注意: 这是一个失败回调, 只有消息从Exchange路由到Queue失败才会回调这个方法 rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> { log.info("消息从Exchange路由到Queue失败: exchange: {}, route: {}, replyCode: {}, replyText: {}, message: {}", exchange, routingKey, replyCode, replyText, message); }); return rabbitTemplate;}

```