rabbitMq确认机制之ConfirmType

本文介绍: 1. none（默认）：关闭发布确认模式。2. co r rela t e d：消息从生产者发送到交换机后触发回调方法。3. simple：会触发回调方法，相当于单个确认（发一条确认一条）。在发布消息成功后使用

 @Bean(name = "connectionFactory")
    @Primary
    public ConnectionFactory normalConnectionFactory(
   
            @Value("${spring.rabbitmq.username}") String username,
            @Value("${spring.rabbitmq.password}") String password,
            @Value("${spring.rabbitmq.addresses}") String address) {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
 
        connectionFactory.setAddresses(address);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
     //   connectionFactory.setPublisherConfirms(true);
        connectionFactory.setPublisherReturns(true);
        connectionFactory.setPublisherConfirmType(CachingConnectionFactory.ConfirmType.CORRELATED);
        connectionFactory.setExecutor(createThreadPool(10,
                20,
                "mq-connection-",
                "mq-connection-group"));
        return connectionFactory;
    }

或者配置文件里配置

spring:
  # RabbitMQ 配置项，对应 RabbitProperties 配置类
  rabbitmq:
    publisher-confirm-type: correlated

pub li sher-confirm–type 属性有三个可选值：

开启simple模式需要在inv oke方法中一起执行 rabbitTemplate.waitForConfirms
同时也会收到回调，回调后结束阻塞，同时可以获取到返回结果。

  RabbitTemplate.ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                if (ack){
                    System.out.println(correlationData.toString() + "发送成功");
                }else {
                    System.out.println(correlationData.toString() + "发送失败， 原因： " + cause);
                }
            }
        };
        rabbitTemplate.setConfirmCallback(confirmCallback);
        Boolean invoke = rabbitTemplate.invoke(operations -> {
            rabbitTemplate.convertAndSend("direct_exchange", "ROUTING_KEY_01", message, correlationData);
            return rabbitTemplate.waitForConfirms(1000l);
        });

     RabbitTemplate.ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                if (ack){
                    System.out.println(correlationData.toString() + "发送成功");
                }else {
                    System.out.println(correlationData.toString() + "发送失败， 原因： " + cause);
                }
            }
        };
        rabbitTemplate.setConfirmCallback(confirmCallback);
    
        rabbitTemplate.convertAndSend("direct_exchange", "ROUTING_KEY_01", message, correlationData);
   


    //    correlationData.getFuture().get();
        sleep(1000*60);
        System.out.println("发送消息boot mq hello Direct成功");