rabbitmq相关

1.maven相关依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>

 

2.配置

# RabbitMQ配置
spring.rabbitmq.host=192.168.77.130
spring.rabbitmq.port=5672
# 虚拟主机配置
spring.rabbitmq.virtual-host=/
# 开启发送端消息抵达Broker确认
spring.rabbitmq.publisher-confirms=true
# 开启发送端消息抵达Queue确认
spring.rabbitmq.publisher-returns=true
# 只要消息抵达Queue，就会异步发送优先回调returnfirm
spring.rabbitmq.template.mandatory=true
# 手动ack消息，不使用默认的消费端确认
spring.rabbitmq.listener.simple.acknowledge-mode=manual

 

3.MyRabbitConfig配置

import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

@Configuration
public class MyRabbitConfig {

    private RabbitTemplate rabbitTemplate;

    @Primary
    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        this.rabbitTemplate = rabbitTemplate;
        rabbitTemplate.setMessageConverter(messageConverter());
        initRabbitTemplate();
        return rabbitTemplate;
    }

    @Bean
    public MessageConverter messageConverter() {
        return new Jackson2JsonMessageConverter();
    }

    /**
     * 定制RabbitTemplate
     * 1、服务收到消息就会回调
     *      1、spring.rabbitmq.publisher-confirms: true
     *      2、设置确认回调
     * 2、消息正确抵达队列就会进行回调
     *      1、spring.rabbitmq.publisher-returns: true
     *         spring.rabbitmq.template.mandatory: true
     *      2、设置确认回调ReturnCallback
     *
     * 3、消费端确认(保证每个消息都被正确消费，此时才可以broker删除这个消息)
     *
     */
    @PostConstruct  //MyRabbitConfig对象创建完成以后，执行这个方法
    public void initRabbitTemplate() {

        /**
         * 1、只要消息抵达Broker就ack=true
         * correlationData：当前消息的唯一关联数据(这个是消息的唯一id)
         * ack：消息是否成功收到
         * cause：失败的原因
         */
        //设置确认回调
        rabbitTemplate.setConfirmCallback((correlationData,ack,cause) -> {
            System.out.println("confirm...correlationData["+correlationData+"]==>ack:["+ack+"]==>cause:["+cause+"]");
        });


        /**
         * 只要消息没有投递给指定的队列，就触发这个失败回调
         * message：投递失败的消息详细信息
         * replyCode：回复的状态码
         * replyText：回复的文本内容
         * exchange：当时这个消息发给哪个交换机
         * routingKey：当时这个消息用哪个路邮键
         */
        rabbitTemplate.setReturnCallback((message,replyCode,replyText,exchange,routingKey) -> {
            System.out.println("Fail Message["+message+"]==>replyCode["+replyCode+"]" +
                    "==>replyText["+replyText+"]==>exchange["+exchange+"]==>routingKey["+routingKey+"]");
        });
    }
}

 

4.MyRabbitConfig

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class MyRabbitConfig {

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Bean
    public Queue orderDelayQueue() {
        Map<String, Object> args = new HashMap<>();
        args.put("x-dead-letter-exchange", "order-event-exchange");
        args.put("x-dead-letter-routing-key", "order.release.order");
        args.put("x-message-ttl", 60000);  // 订单状态改变时间要比库存早
        return new Queue("order.delay.queue",
                true,
                false,
                false,
                args);
    }

    @Bean
    public Queue orderReleaseQueue() {
        return new Queue("order.release.order.queue",
                true,
                false,
                false
        );
    }

    @Bean
    public Exchange orderEventExchange() {
        return new TopicExchange("order-event-exchange",
                true,
                false
        );
    }

    @Bean
    public Binding orderCreateOrder() {
        // 交换机根据routing-key绑定队列
        return new Binding("order.delay.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.create.order", null);
    }

    @Bean
    public Binding orderReleaseOrder() {
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.order", null);
    }

    // ware 服务
    @Bean
    public Binding orderReleaseOtherBinding() {
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#", null);
    }

    // seckill 服务  秒杀开始
    @Bean
    public Queue orderSeckillOrderQueue() {
        return new org.springframework.amqp.core.Queue("order.seckill.order.queue",
                true,
                false,
                false
        );
    }
    // 秒杀结束

    @Bean
    public Binding seckillOrderBinding() {
        // 交换机根据routing-key绑定队列
        return new Binding("order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order", null);
    }


    @PostConstruct // 构造器创建完成后执行该方法
    public void initRabbitTemplate() {
        // 设置确认回调
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            /**
             * 发送端确认：只要消息抵达服务器端，ack就是true
             * @param correlationData 当前消息的唯一关联数据（消息唯一id）
             * @param ack  是否确认收到
             * @param reason 失败原因
             */
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String reason) {

            }
        });
        rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback() {
            /**
             * 发送端确认：只要消息没有投递给指定队列，就出发这个失败回调
             * @param message 投递失败的消息详情
             * @param i 回复消息状态码
             * @param s 回复消息文本内容
             * @param s1  to哪个交换机
             * @param s2  routing-key
             */
            @Override
            public void returnedMessage(Message message, int i, String s, String s1, String s2) {
            }
        });
    }
}