RabbitMQ 自动创建及可靠消息发送

先要在文件中配置发送确认

spring:
  application:
    name: XXX
  rabbitmq:
    host: 192.168.0.168
    port: 5672
    username: guest
    password: guest
    virtual-host: ht
    publisher-confirm-type: correlated #开启到交换机确认
    publisher-returns: true #开启到队列确认

@Configuration()
public class RabbitMQConfig {

    public final static String  EXCHANGE = "direct.exchange.ht";

    public static final String ROUTINGKEY = "ht.routingkey";
    
    @Autowired
    private RabbitTemplate rabbitTemplate;

    /**
     * 定义消息发交换机回调处理
     */
    RabbitTemplate.ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() {
        @Override
        public void confirm(CorrelationData correlationData, boolean b, String s) {
            if(b){
                System.out.println("消息成功发送到交换机");
            }else{
                System.out.println("消息发送失败，要写失败后的处理,如保存到数据为以后再发。。。"+s);
            }
        }
    };

    /**
     * 定义消息从交换机到队列报错处理
     */
    RabbitTemplate.ReturnCallback returnCallback = new RabbitTemplate.ReturnCallback() {
        @Override
        public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
            System.out.println(String.format("消息由交换机到队列报错了。。,message[%s], replyCode[%s], replyText[%s], exchange[%s], routingKey[%s]",
                    message, replyCode, replyText, exchange, routingKey));
        }
    };

    /**
     * 消息报错回调
     */
    @Bean
    public void initCallback(){
        rabbitTemplate.setConfirmCallback(confirmCallback);
        rabbitTemplate.setReturnCallback(returnCallback);
    }

    /**
     * 自动创建交换机
     * @return
     */
    @Bean
    public DirectExchange exchange() { // 使用直连的模式
        return new DirectExchange(EXCHANGE, true, true);
    }

    /**
     * 自动创建队列
     * @return
     */
    @Bean
    public Queue htqueueAdd() {

        return new Queue("queue.ht.test", true);
    }

    /**
     * 队队绑定关系
     * @return
     */
    @Bean
    public Binding bindinghtquueu() {
        return BindingBuilder.bind(htqueueAdd()).to(exchange()).with(ROUTINGKEY);
    }
    
}