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【RabbitMQ】第一个SpringBoot应用

文章目录

  • 一、导入依赖等杂活
  • 二、生产者
  • 二、消费者

一、导入依赖等杂活

依赖

<?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>org.example</groupId>
    <artifactId>raabbitmq-example</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>provider</module>
        <module>consumer</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <version>2.1.4.RELEASE</version>
        <artifactId>spring-boot-starter-parent</artifactId>
    </parent>
    <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>

二、生产者

配置

server:
  port: 8021
spring:
  application:
    name: rabbitmq-provider
  rabbitmq:
    host: 192.168.136.128
    port: 5673
    username: admin
    password: admin
mq:
  provider:
    routing: MyRouting  #绑定的键
    queue: MyQueue		#队列
    exchange: MyExchange #交换机

配置类

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;


@Configuration
public class Config{
	//用来获取yml中的配置
    @Autowired
    private Environment env;  

    //创建队列
    @Bean
    public Queue MyDirectQueue() {
        // durable:是否持久化,默认是false,持久化队列:会被存储在磁盘上,当消息代理重启时仍然存在,暂存队列:当前连接有效
        // exclusive:默认也是false,只能被当前创建的连接使用,而且当连接关闭后队列即被删除。此参考优先级高于durable
        // autoDelete:是否自动删除,当没有生产者或者消费者使用此队列,该队列会自动删除。
        //   return new Queue("TestDirectQueue",true,true,false);

        //一般设置一下队列的持久化就好,其余两个就是默认false
        return new Queue(env.getProperty("mq.provider.queue"),true);
    }

    //创建交换机
    @Bean
    DirectExchange MyDirectExchange() {
        //  return new DirectExchange("TestDirectExchange",true,true);
        return new DirectExchange(env.getProperty("mq.provider.exchange"),true,false);
    }

    //绑定  将交换机与队列绑定
    @Bean
    Binding bindingDirect() {
        return BindingBuilder.bind(MyDirectQueue())
                .to(MyDirectExchange())
                .with(env.getProperty("mq.provider.routing"));
    }
   
}

创建一个controller

import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;


@RestController
public class SendMessageController {

    @Autowired
    RabbitTemplate rabbitTemplate;  //使用RabbitTemplate,这提供了接收/发送等等方法

    @Autowired
    private Environment env; //获取配置里的参数值

    @GetMapping("/sendDirectMessage")
    public String sendDirectMessage() {
        String messageId = String.valueOf(UUID.randomUUID());
        String messageData = "test message, hello!";
        String createTime = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        Map<String,Object> map=new HashMap<>();
        map.put("messageId",messageId);
        map.put("messageData",messageData);
        map.put("createTime",createTime);
        //将消息携带绑定键值:TestDirectRouting 发送到交换机TestDirectExchange
        rabbitTemplate.convertAndSend(env.getProperty("mq.provider.exchange"), env.getProperty("mq.provider.routing"), map);
        return "ok";
    }

}

运行的主类就不多讲了

二、消费者

yml配置文件

server:
  port: 8022
spring:
  application:
    name: rabbitmq-consumer
  rabbitmq:
    host: 192.168.136.128
    port: 5673
    username: admin
    password: admin

mq:
  consumer:
    queue: MyQueue
    exchange: MyExchange
    routing: MyRouting

配置类

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;


@Configuration
public class Config {
	//获取yml中的配置
    @Autowired
    private Environment env;

    //队列
    @Bean
    public Queue MyDirectQueue() {
        return new Queue(env.getProperty("mq.consumer.queue"),true);
    }

    //Direct交换机 
    @Bean
    DirectExchange MyDirectExchange() {
        return new DirectExchange(env.getProperty("mq.consumer.exchange"));
    }

    //绑定  将队列和交换机绑定
    @Bean
    Binding bindingDirect() {
        return BindingBuilder.bind(MyDirectQueue())
                .to(MyDirectExchange())
                .with(env.getProperty("mq.consumer.routing"));
    }
}

Listener

import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
import java.util.Map;

@Component
@RabbitListener(queues = "${mq.consumer.queue}")//监听队列
public class Listener {

    @RabbitHandler
    public void process(Map testMessage) {
        System.out.println("DirectReceiver消费者收到消息  : " + testMessage.toString());
    }

}

代码在我github上也有https://github.com/Codeouter/Example/tree/master/Project/raabbitmq-example


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