Rabbitmq整合SpringBoot

Spring Boot整合RabbitMQ

1.1. 简介

在Spring项目中,可以使用Spring-Rabbit去操作RabbitMQ https://github.com/spring-projects/spring-amqp

尤其是在spring boot项目中只需要引入对应的amqp启动器依赖即可,方便的使用RabbitTemplate发送消息,使用注解接收消息。

一般在开发过程中:

生产者工程:

  1. application.yml文件配置RabbitMQ相关信息;
  2. 在生产者工程中编写配置类,用于创建交换机和队列,并进行绑定
  3. 注入RabbitTemplate对象,通过RabbitTemplate对象发送消息到交换机

消费者工程:

  1. application.yml文件配置RabbitMQ相关信息
  2. 创建消息处理类,用于接收队列中的消息并进行处理

1.2. 搭建生产者工程

1.2.1. 创建工程

创建生产者工程springboot-rabbitmq-producer

1.2.2. 添加依赖

修改pom.xml文件内容为如下:

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
    </parent>
    <groupId>com.itheima</groupId>
    <artifactId>springboot-rabbitmq-producer</artifactId>
    <version>1.0-SNAPSHOT</version>

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

1.2.3. 启动类

package com.itheima.rabbitmq;

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

@SpringBootApplication
public class ProducerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ProducerApplication.class);
    }
}


1.2.4. 配置RabbitMQ

1)配置文件

创建application.yml,内容如下:

spring:
  rabbitmq:
    host: 192.168.1.119
    port: 5672
    virtual-host: /wgr
    username: wgr
    password: 1qaz@WSX

2)绑定交换机和队列

创建RabbitMQ队列与交换机绑定的配置类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;

@Configuration
public class RabbitMQConfig {
    //交换机名称
    public static final String ITEM_TOPIC_EXCHANGE = "item_topic_exchange";
    //队列名称
    public static final String ITEM_QUEUE = "item_queue";

    //声明交换机
    @Bean("itemTopicExchange")
    public Exchange topicExchange(){
        return ExchangeBuilder.topicExchange(ITEM_TOPIC_EXCHANGE).durable(true).build();
    }

    //声明队列
    @Bean("itemQueue")
    public Queue itemQueue(){
        return QueueBuilder.durable(ITEM_QUEUE).build();
    }

    //绑定队列和交换机
    @Bean
    public Binding itemQueueExchange(@Qualifier("itemQueue") Queue queue,
                                     @Qualifier("itemTopicExchange") Exchange exchange){
        return BindingBuilder.bind(queue).to(exchange).with("item.#").noargs();
    }

}

1.2.5 消息发送Controller

我们创建一个SpringMVC的Controller方便我们进行测试

package com.itheima.rabbitmq.controller;

import com.itheima.rabbitmq.config.RabbitMQConfig;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * 发送消息的测试类
 */
@RestController
public class SendMsgController {

    //注入RabbitMQ的模板
    @Autowired
    private RabbitTemplate rabbitTemplate;

    /**
     * 测试
     */
    @GetMapping("/sendmsg")
    public String sendMsg(@RequestParam String msg, @RequestParam String key){

        /**
         * 发送消息
         * 参数一:交换机名称
         * 参数二:路由key
         * 参数三:发送的消息
         */
        rabbitTemplate.convertAndSend(RabbitMQConfig.ITEM_TOPIC_EXCHANGE ,key ,msg);

        //返回消息
        return "发送消息成功!";
    }
}

1.3. 搭建消费者工程

1.3.1. 创建工程

创建消费者工程springboot-rabbitmq-consumer

1.3.2. 添加依赖

修改pom.xml文件内容为如下:

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
    </parent>
    <groupId>com.itheima</groupId>
    <artifactId>springboot-rabbitmq-consumer</artifactId>
    <version>1.0-SNAPSHOT</version>

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

</project>

1.3.3. 启动类

package com.itheima.rabbitmq;

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

@SpringBootApplication
public class ConsumerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class);
    }
}

1.3.4. 配置RabbitMQ

创建application.yml,内容如下:

spring:
  rabbitmq:
    host: localhost
    port: 5672
    virtual-host: /itcast
    username: heima
    password: heima

1.3.5. 消息监听处理类

编写消息监听器com.itheima.rabbitmq.listener.MyListener

package com.itheima.rabbitmq.listener;

import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
public class MyListener {

    /**
     * 监听某个队列的消息
     * @param message 接收到的消息
     */
    @RabbitListener(queues = "item_queue")
    public void myListener1(String message){
        System.out.println("消费者接收到的消息为:" + message);
    }
}


1.3.6. 测试

在生产者工程springboot-rabbitmq-producer中创建测试类,发送消息:

package com.itheima.rabbitmq;

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;

@RunWith(SpringRunner.class)
@SpringBootTest
public class RabbitMQTest {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Test
    public void test(){
        rabbitTemplate.convertAndSend(RabbitMQConfig.ITEM_TOPIC_EXCHANGE, "item.insert", "商品新增,routing key 为item.insert");
        rabbitTemplate.convertAndSend(RabbitMQConfig.ITEM_TOPIC_EXCHANGE, "item.update", "商品修改,routing key 为item.update");
        rabbitTemplate.convertAndSend(RabbitMQConfig.ITEM_TOPIC_EXCHANGE, "item.delete", "商品删除,routing key 为item.delete");
    }
}

先运行上述测试程序(交换机和队列才能先被声明和绑定),然后启动消费者;在消费者工程springboot-rabbitmq-consumer中控制台查看是否接收到对应消息。

另外;也可以在RabbitMQ的管理控制台中查看到交换机与队列的绑定:

posted @ 2020-07-08 21:33  天宇轩-王  阅读(296)  评论(0编辑  收藏  举报