Springboot2.x integrates RabbitMQ to realize message sending confirmation and message receiving confirmation (ACK)

Preface

First look at the callback mechanism:

• No matter whether the message is delivered to the exchange or not, the ConfirmCallback callback is performed, and the delivery is successful ack=true, otherwise it is false
• If the switch matches the queue successfully, the ReturnCallback callback will not be performed, otherwise the ReturnCallback callback will be performed first and then the ConfirmCallback callback will be performed
• If the message is successfully delivered to the exchange but does not match the queue, the ConfirmCallback callback ack is still true

我的springboot版本springBootVersion = '2.2.1.RELEASE'

ConfirmCallback

First you need to configure in yml:

publisher-confirm-type: correlated

    /**
     * 测试消息确认回调（必须在yml配置publisher-confirm-type: correlated）
     */
    @GetMapping("sendConfirmCallback")
    public Resp sendConfirmCallback() {
        rabbitTemplate.setConfirmCallback((correlationData, ack, cause) -> {
            System.out.println("ack:" + ack);
            if (!ack) {
                System.out.println("异常处理");
            }
        });
        amqpTemplate.convertAndSend("test-queue", "测试ack确认模式");
        return Resp.success("ok", null);
    }

ReturnCallback

Need to be configured in yml

publisher-returns: true

    @Autowired
    private AmqpTemplate amqpTemplate;
    @Resource
    private RabbitTemplate rabbitTemplate; 

   /**
     * 启动消息失败返回，比如路由不到队列时触发回调
     * 测试发布回调（必须在yml配置publisher-returns: true）
     */
    @GetMapping("sendReturnCallback")
    public Resp sendReturnCallback() {
        RabbitTemplate.ReturnCallback returnCallback = (message, replyCode, replyText, exchange, routingKey) -> {
            System.out.println("========returnCallback=============");
            System.out.println("========returnCallback=============");
        };
        rabbitTemplate.setReturnCallback(returnCallback);
        amqpTemplate.convertAndSend("test-", "测试发布回调模式");
        return Resp.success("ok", null);
    }