RabbitMQ应用

RabbitMQ应用

引入依赖

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

代码实例

package com.jd.ng.shiro.config.rabbitMQconfig;

import com.jd.ng.shiro.rabbitMqListener.SimpleMessageListener;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.amqp.SimpleRabbitListenerContainerFactoryConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;

import java.util.HashMap;
import java.util.Map;

/**
 * @Author: husToy.Wang
 * @Date: 2019/6/12 18:14
 * @Version 1.0
 */
@Configuration
public class myrabbitmqConfig {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Autowired
    private Environment env;

    @Autowired
    private CachingConnectionFactory connectionFactory;

    @Autowired
    private SimpleRabbitListenerContainerFactoryConfigurer  factoryConfigurer;

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

    /**
     * 声明product.exchange 交换器
     *
     * @return
     */
    @Bean(name = "directExchange")
    public DirectExchange directExchange() {
        return new DirectExchange(env.getProperty("mq.exchange.product.exchange"), true, false);
    }

    @Bean(name = "directProductQueue")
    public Queue directProductQueue() {
        Queue queue = new Queue(env.getProperty("mq.exchange.product.queue"), true, false, false);
        return queue;
    }

    @Bean
    public Binding binding() {
        Binding bind = BindingBuilder.bind(directProductQueue()).to(directExchange()).with(env.getProperty("mq.exchange.product.routingKey"));
        return bind;
    }

    @Autowired
    private SimpleMessageListener simpleMessageListener;

    // TODO  配置并发与确认机器 (针对于一个队列)
    @Bean(name = "simpleContainer")
    public SimpleMessageListenerContainer simpleContainer(@Qualifier("directProductQueue") Queue directProductQueue) {
        SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);

        //TODO：并发配置
        container.setConcurrentConsumers(env.getProperty("spring.rabbitmq.listener.concurrency", Integer.class));
        container.setMaxConcurrentConsumers(env.getProperty("spring.rabbitmq.listener.max-concurrency", Integer.class));
        container.setPrefetchCount(env.getProperty("spring.rabbitmq.listener.prefetch", Integer.class));

        //TODO：消息确认-确认机制种类
        container.setAcknowledgeMode(AcknowledgeMode.MANUAL); // 指定确认机制
        container.setQueues(directProductQueue); //指定队列
        container.setupMessageListener(simpleMessageListener);
        return container;
    }

    /**
     * 多个消费者 ,不指定具体的队列
     */
    @Bean(name ="multiListenerContainer")
    public SimpleRabbitListenerContainerFactory multiListenerContainer(){
       SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();

       // TODO 指定配置文件 (监听厂,包括连接工厂)
       factoryConfigurer.configure(factory, connectionFactory);
       factory.setAcknowledgeMode(AcknowledgeMode.NONE);
       factory.setConcurrentConsumers(env.getProperty("spring.rabbitmq.listener.concurrency", Integer.class));
       factory.setMaxConcurrentConsumers(env.getProperty("spring.rabbitmq.listener.max-concurrency", Integer.class));
       factory.setPrefetchCount(env.getProperty("spring.rabbitmq.listener.prefetch", Integer.class));

       return factory;

    }

    @Bean
    public DirectExchange directExchange01(){
       return new DirectExchange("test.exchange", true,false);
    }


    // 定义一个订单queue
    @Bean(name = "userOrderQueue")
    public Queue userOrderQueue(){
        Map<String,Object>  args = new HashMap();
        args.put("x-dead-letter-exchange", env.getProperty("mq.exchange.dead.exchange"));
        args.put("x-dead-letter-routing-key", env.getProperty("mq.exchange.dead.routing.key"));
        args.put("x-message-ttl", 1000*60*3); // 整体队列三分仲超时
        Queue queue = new Queue(env.getProperty("mq.exchange.order.queue"), true, false, false, args );
        return queue;
    }

    // 创建订单交换器
    @Bean(name = "userOrderExchange")
    public DirectExchange userOrderExchange(){
        return  new DirectExchange(env.getProperty("mq.exchange.order.exchange"), true, false);
    }

    // 订单队列绑定到订单交换器
    @Bean
    public Binding userOrderBing(){
       return  BindingBuilder.bind(userOrderQueue()).to(userOrderExchange()).with(env.getProperty("mq.exchange.order.routing.key"));
    }

    @Bean
    public DirectExchange aa()
    {
        return  new DirectExchange("leiget.exchange",true,false);
    }

    // 创建死信交换器
    @Bean(name = "orderDeadExchange")
    public DirectExchange orderDeadExchange(){
        return new DirectExchange(env.getProperty("mq.exchange.dead.exchange"),true,false);
    }

    // 创建死信队列
    @Bean(name = "orderDeadQueue")
    public Queue orderDeadQueue(){
        return new Queue(env.getProperty("mq.exchange.dead.queue"),true,false,false);
    }

    // 绑定死信交换器与交队列
    @Bean
    public Binding deadQueueBind(){
        return BindingBuilder.bind(orderDeadQueue()).to(orderDeadExchange()).with(env.getProperty("mq.exchange.dead.routing.key"));
    }

}