2-rabbitMq的配置，生产者和消费者配置（spring和springboot方式、如何动态创建队列并监听）

springboot如何配置RabbitMq

  
        
            org.springframework.boot
            spring-boot-starter-amqp
        

接着在application.properties中配置mq账户密码等

发送者

 @Autowired
    private AmqpTemplate template;
  /**
     * 发送数据到rabbitMq
     * @param exchangeName 交换机名称
     * @param routingKey 路由
     * @param data 需发送的数据
     */
    public void sendMqData(String exchangeName, String routingKey, String json){
        log.info(routingKey+"===========sendmq:"+json);
        template.convertAndSend(exchangeName,routingKey,json);
    }

接受者

springboot注解的方式很简单，注意里面的参数怎么写

    @RabbitListener(bindings =@QueueBinding(
            value = @Queue(value = RabbitMqConfig.reciveQueueName,autoDelete = "true"),
            exchange = @Exchange(value = RabbitMqConfig.defaultExchangeName,type = "topic"),
            key = "XXX.aaa.gateway.#"
    ))
    @RabbitHandler
    public void reciveMqMessage(String message, Channel channel) {
        log.info("===========recivemq:"+message);
        try {
            gatewayReciveDataService.reciveDataHandle(message);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

如何动态创建队列并监听队列

先写配置类

 package com.iot.service;

import com.iot.listener.RabbitMqListener;
import org.springframework.amqp.core.AcknowledgeMode;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


/**
 * RabbitMq配置类
 * GYB
 * 20190320
 */
@Configuration
public class RabbitMqConf {

//    配置rabbitmq的监听类，本来打算在xml配置中配置，但是配置文件中要求必须指定队列名称，所以改成这种配置类注解的方式
//    
//        
//    

        //RabbitMqListener是我们自定义的接受数据的类，他要 implements MessageListener类，重写onMessage方法即可
    @Autowired
    RabbitMqListener rabbitMqListener;

    @Bean
    public SimpleMessageListenerContainer messageListenerContainer(ConnectionFactory connectionFactory){
        SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        container.setAcknowledgeMode(AcknowledgeMode.AUTO);
//        container.setQueueNames("test-queue1");
        container.setMessageListener(rabbitMqListener);
        return container;
    }
}

然后我们在自己的逻辑业务中，动态创建队列和 监听队列

 @Autowired
    SimpleMessageListenerContainer container;
 @Autowired
    ConnectionFactory connectionFactory;

 /**
     * 创建队列，并绑定routeKeys,并监听此队列消息
     * @param queuename
     * @param routeKeys
     */
    public void createOrBindQueue(String queuename,String... routeKeys) {
        if(RabbitMqMemory.IotMqChannel==null){
            //创建队列
            Channel channel = connectionFactory.createConnection().createChannel(false);
            try {
                //创建排他队列，Connection连接（非channel连接！）断开时自动删除队列，
                channel.queueDeclare(queuename, false, false, true, null);
                if(routeKeys.length>0){
                    // 队列绑定exchange和多个路由
                    for (String routeKey:routeKeys
                    ) {
                        channel.queueBind(queuename, RabbitMqMemory.defaultExchangeName, routeKey);
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            // 为某队列添加监听
            container.addQueueNames(queuename);
            System.out.println("队列监听中========================");
            RabbitMqMemory.IotMqChannel = channel;
        }else{
            //已有队列和通道，只需绑定routeKeys
            queueBindRouteKeys(queuename,routeKeys);
        }

    }

spring如何配置RabbitMq