SpringBoot 整合 RabbitMQ

创建两个无骨架的maven项目
生产者的消息被消费者消费之后就消失了

1.生产者

1.pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.itcast</groupId>
    <artifactId>springboot_rabbitmq_producer</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--
            1. 父工程依赖
        -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
    </parent>

    <dependencies>
        <!--2. rabbitmq与springboot相关-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>

2.application.yml：

# 配置RabbitMQ的基本信息  ip 端口 username  password..
spring:
  rabbitmq:
    host: 127.0.0.1 # ip
    port: 5672
    username: guest
    password: guest
    virtual-host: /

3.com.itheima.ProducerApplication：

package com.itheima;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/26 21:49
 */
@SpringBootApplication
public class ProducerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ProducerApplication.class);
    }
}

4.com.itheima.rabbitmq.config.RabbitMQConfig:

package com.itheima.rabbitmq.config;

import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/26 21:52
 */
@Configuration
public class RabbitMQConfig {
    //定义交换机和队列名,浏览器是显示这个，而不是bean的
    public static final String EXCHANGE_NAME="boot_topic_exchange";
    public static final String QUEUE_NAME="boot_queue";

    //1.交换机
    @Bean("bootExchange")
    public Exchange bootExchange(){
        return ExchangeBuilder.topicExchange(EXCHANGE_NAME).durable(true).build();
    }

    //2.Queue 队列
    @Bean("bootQueue")
    public Queue bootQueue(){
        return QueueBuilder.durable(QUEUE_NAME).build();
    }

    //3. 队列和交互机绑定关系 Binding
    /*
        1. 知道哪个队列，对应上面的Bean后面的
        2. 知道哪个交换机
        3. routing key
     */
    @Bean
    public Binding bindQueueExchange(@Qualifier("bootQueue")Queue queue,
                                     @Qualifier("bootExchange") Exchange exchange){
        return BindingBuilder.bind(queue).to(exchange).with("boot.#").noargs();
    }
}

5.com.itheima.test.ProducerTest:

package com.itheima.test;

import com.itheima.rabbitmq.config.RabbitMQConfig;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/26 22:53
 */
@SpringBootTest
@RunWith(SpringRunner.class)
public class ProducerTest {
    //1.注入RabbitTemplate，官网有的
    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Test
    public void testSend(){
        //需指定自定义的RabbitMQConfig的交换机名称
        rabbitTemplate.convertAndSend(RabbitMQConfig.EXCHANGE_NAME,"boot.haha","springboot mq hello");
    }
}

运行：

发送成功：

2 .消费者

pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.itcast</groupId>
    <artifactId>springboot_rabbitmq_consumer</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
    </parent>

    <dependencies>
        <!--2. rabbitmq与springboot相关-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>

application.yml：

# 配置RabbitMQ的基本信息  ip 端口 username  password..
spring:
  rabbitmq:
    host: 127.0.0.1 # ip
    port: 5672
    username: guest
    password: guest
    virtual-host: /

com.itheima.listener.RabbimtMQListener：

package com.itheima.listener;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;


/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/26 23:05
 */
@Component
public class RabbimtMQListener {
    //这里写的boot_queue是对应生产者定义队列名哦
    @RabbitListener(queues = "boot_queue")
    public void ListenerQueue(Message message){
        System.out.println(new String(message.getBody()));
    }
}

com.itheima.ConsumerSpringbootApplication：

package com.itheima;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/26 23:04
 */
@SpringBootApplication
public class ConsumerSpringbootApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConsumerSpringbootApplication.class);
    }
}

运行这个启动类就可以了：
输出成功！！！

小结