【RabbitMQ】07-业务幂等处理

1. 方式一

序列化设置唯一Id。

    @Bean
    public MessageConverter messageConverter() {
        Jackson2JsonMessageConverter jjmc = new Jackson2JsonMessageConverter();
        jjmc.setCreateMessageIds(true);
        return jjmc;
    }

    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(name = "direct.queue1"),
            exchange = @Exchange(name = "hmall.direct", type = ExchangeTypes.DIRECT),
            key = {"red", "yellow"}
    ))
    public void topicLister1(Message msg) {
        log.info("测试" + msg.getMessageProperties().getMessageId());
        System.out.println(new String(msg.getBody()));
        // throw new RuntimeException("用于测试的异常");
    }

2. 方式二

基于业务