十三、spring boot 2.x 集成 rabbitmq

rabbitmq官方下载地址：http://www.rabbitmq.com/download.html

1、在pom.xml中添加rabbitmq的maven依赖

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

2、在application.properties文件中添加rabbitmq的配置信息

#rabbitmq
spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest

3、配置消息队列：RabbitMqConfig.java，跟启动类放在同一层级目录下

package com.ldy.bootv2.demo;


import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class RabbitMqConfig {
     
	//定义消息队列名称
    public static final String QUEUE_NAME = "ldy-task-queue";
     
    @Bean(name="taskQueue")
    public Queue queue() {
        return new Queue(QUEUE_NAME);
    }
}

4、生产者代码：RabbitMqSender.java

package com.ldy.bootv2.demo.service;

import java.util.Date;

import javax.annotation.Resource;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.amqp.core.Queue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
 
/**
 * @类名: RabbitMqSender<br>
 * @描述: 生产者<br>
 */
@Service
public class RabbitMqSender {
	
    private static Logger logger = LoggerFactory.getLogger(RabbitMqSender.class);
     
    @Autowired
    private AmqpTemplate rabbitTemplate;
     
    //注入name="taskQueue"的Queue
    @Resource(name="taskQueue")
    private Queue queue;
    
    /**
     * @方法名: execute<br>
     * @描述: 测试，5秒发送一条消息<br>
     */
    @Scheduled(fixedRate = 1000*5)
    public void execute() {
    	String msg = "ldy的测试消息 "+ new Date().getTime();
    	this.send(msg);
    }
     
    /**
     * @方法名: send<br>
     * @描述: 发送消息<br>
     * @param msg
     */
    public void send(String msg) {
    	logger.info("send:" + msg);
	rabbitTemplate.convertAndSend(queue.getName(), msg);
    }
     
}

注意，测试方法上的@Scheduled注解需要开启任务调度才可以生效，你也可以通过其他方法测试。

在入口类上添加@EnableScheduling开启任务调度，也可以直接在当前类上加该注解

package com.ldy.bootv2.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@EnableScheduling
@SpringBootApplication
public class BootV2App {

	public static void main(String[] args) {
		SpringApplication.run(BootV2App.class, args);
	}
}

5、消费者代码：RabbitMqReceiver.java

package com.ldy.bootv2.demo.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Service;

import com.ldy.bootv2.demo.RabbitMqConfig;

/**
 * @类名: RabbitMqReceiver<br>
 * @描述: 消费者<br>
 */
@Service
public class RabbitMqReceiver {
	
    private static Logger logger = LoggerFactory.getLogger(RabbitMqReceiver.class);
	
    @RabbitListener(queues = RabbitMqConfig.QUEUE_NAME) // //监听器监听指定的Queue
    public void receive(String msg) {
	logger.info("receiver: " + msg);
    }

}

6、启动项目查看运行效果如图

源码下载地址：https://pan.baidu.com/s/1Z771VDiuabDBJJV445xLeA#list/path=%2Fspring%20boot%202.x%20%E4%BB%A3%E7%A0%81

十三、spring boot 2.x 集成 rabbitmq

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