RabbitMQ与springboot整合

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1、基本概念
  • Server接收客户端的连接实现AMQP实体服务
  • Connection连接应用程序与Server的网络连接TCP连接
  • Channel信道消息读写等操作在信道中进行。客户端可以建立多个信道每个信道代表一个会话任务
  • Message消息应用程序和服务器之间传送的数据消息可以非常简单也可以很复杂。由Properties和Body组成。Properties为外包装可以对消息进行修饰比如消息的优先级、延迟等高级特性Body就是消息体内容
  • Virtual Host虚拟主机用于逻辑隔离。一个虚拟主机里面可以有若干个Exchange和Queue同一个虚拟主机里面不能有相同名称的Exchange或Queue
  • Exchange交换器接收消息按照路由规则将消息路由到一个或者多个队列。如果路由不到或者返回给生产者或者直接丢弃。RabbitMQ常用的交换器常用类型有direct、topic、fanout、headers四种后面详细介绍
  • Binding绑定交换器和消息队列之间的虚拟连接绑定中可以包含一个或者多个RoutingKey
  • RoutingKey路由键生产者将消息发送给交换器的时候会发送一个RoutingKey用来指定路由规则这样交换器就知道把消息发送到哪个队列。路由键通常为一个“.”分割的字符串例如“com.rabbitmq”
  • Queue消息队列用来保存消息供消费者消费

在这里插入图片描述
交换器
在这里插入图片描述

2、RabbitMQ与springboot整合Gradle项目

build.gradle

plugins {
	id 'java'
	id 'org.springframework.boot' version '3.1.1'
	id 'io.spring.dependency-management' version '1.1.0'
}

group = 'com.kexuexiong'
version = '0.0.1-SNAPSHOT'

java {
	sourceCompatibility = '17'
}

configurations {
	compileOnly {
		extendsFrom annotationProcessor
	}
}

repositories {
//	mavenCentral()
	maven {
		url 'https://maven.aliyun.com/repository/public'
	}
}

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-jdbc'
	implementation 'org.springframework.boot:spring-boot-starter-validation'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:3.0.2'
	compileOnly 'org.projectlombok:lombok'
	runtimeOnly 'com.mysql:mysql-connector-j'
	annotationProcessor 'org.projectlombok:lombok'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'
	testImplementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter-test:3.0.2'
	// https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-amqp
	implementation 'org.springframework.boot:spring-boot-starter-amqp'
	implementation 'cn.hutool:hutool-all:5.8.16'
}

tasks.named('test') {
	useJUnitPlatform()
}

yml
使用的RabbitMQ的集群部署192.168.49.10:5672,192.168.49.9:5672,192.168.49.11:5672

server:
  port: 8014

spring:
  rabbitmq:
    username: admin
    password: 123456
    dynamic: true
#    port: 5672
#    host: 192.168.49.9
    addresses: 192.168.49.10:5672,192.168.49.9:5672,192.168.49.11:5672
    publisher-confirm-type: correlated
    publisher-returns: true
  application:
    name: shushan
  datasource:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://ip/shushan
      username: root
      password: 
      hikari:
        minimum-idle: 10
        maximum-pool-size: 20
        idle-timeout: 50000
        max-lifetime: 540000
        connection-test-query: select 1
        connection-timeout: 600000

下面根据三种交换机的类型举例子DirectExchange、TopicExchange、FanoutExchange。

项目所使用到的常量

package com.kexuexiong.shushan.common.mq;


public class MqConstant {

    public final static String demoDirectQueue = "demoDirectQueue";

    public final static String demoDirectExchange = "demoDirectExchange";

    public final static String demoDirectRouting = "demoDirectRouting";

    public final static String lonelyDirectExchange = "lonelyDirectExchange";

    public final static String topicExchange = "topicExchange";

    public final static String BIG_CAR_TOPIC = "topic.big_car";

    public final static String SMALL_CAR_TOPIC = "topic.small_car";

    public final static String TOPIC_ALL = "topic.#";

    public final static String FANOUT_A = "fanout.A";

    public final static String FANOUT_B = "fanout_B";

    public final static String FANOUT_C = "fanout_c";

    public final static String FANOUT_EXCHANGE = "fanoutExchange";

    public final static String DEAD_LETTER_EXCHANGE = "dead.letter.exchange";

    public final static String DEAD_LETTER_QUEUE = "dead.letter.queue";

    public final static String DEAD_LETTER_ROUTING_KEY = "dead.letter.routing.key";

    public final static String BUSINESS_QUEUE = "business.queue";

    public final static String BUSINESS_ROUTING_KEY = "business.routing.key";

    public final static String BUSINESS_EXCHANGE = "business.exchange";


}
3、Direct模式

config

package com.kexuexiong.shushan.common.mq;


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.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Configuration
public class DirectRabbitConfig {

    @Bean
    public Queue demoDirectQueue() {
        return new Queue(MqConstant.demoDirectQueue, true, false, false);
    }

    @Bean
    DirectExchange demoDirectExchange() {
        return new DirectExchange(MqConstant.demoDirectExchange, true, false);
    }

    @Bean
    Binding bingingDirect() {
        return BindingBuilder.bind(demoDirectQueue()).to(demoDirectExchange()).with(MqConstant.demoDirectRouting);
    }

    @Bean
    DirectExchange lonelyDirectExchange() {
        return new DirectExchange(MqConstant.lonelyDirectExchange);
    }


}

DirectReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
@Slf4j
@RabbitListener(queues = MqConstant.demoDirectQueue)
public class DirectReceiver {

    @RabbitHandler
    public void process(Map msg){
        log.info("1---receiver msg"+msg.toString());
    }
}

DirectReceiverV2 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
@Slf4j
@RabbitListener(queues = MqConstant.demoDirectQueue)
public class DirectReceiverV2 {

    @RabbitHandler
    public void process(Map msg){
        log.info("2---receiver msg"+msg.toString());
    }
}

MqController 生产者

package com.kexuexiong.shushan.controller.mq;

import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.RandomUtil;
import com.kexuexiong.shushan.common.mq.MqConstant;
import com.kexuexiong.shushan.controller.BaseController;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.MessagePostProcessor;
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.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

@Slf4j
@RestController
@RequestMapping("/mq/")
public class MqController extends BaseController {

    @Autowired
    RabbitTemplate rabbitTemplate;

    @GetMapping("/sendDirectMessage")
    public String sendDirectMessage(){

        String msgId = UUID.randomUUID().toString();
        String msg = "demo msg ,kexuexiong";
        String createTime = DateUtil.format(new Date(),"YYYY-MM-dd HH:mm:ss");

        Map<String,Object> map = new HashMap();
        map.put("msgId",msgId);
        map.put("msg",msg);
        map.put("createTime",createTime);

        rabbitTemplate.convertAndSend("demoDirectExchange","demoDirectRouting",map);

        return "ok";
    }

测试
在这里插入图片描述
结果

2023-10-10T16:33:09.411+08:00  INFO 27232 --- [nio-8014-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2023-10-10T16:33:09.412+08:00  INFO 27232 --- [nio-8014-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2023-10-10T16:33:09.413+08:00  INFO 27232 --- [nio-8014-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 1 ms
2023-10-10T16:33:09.471+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:09.471+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:09.472+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:09.481+08:00  INFO 27232 --- [ntContainer#0-1] c.k.shushan.common.mq.DirectReceiver     : 1---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:09, msgId=e2dfe4c7-22b5-42b7-8f7a-967148472eaa}
2023-10-10T16:33:28.327+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:28.327+08:00  INFO 27232 --- [ntContainer#1-1] c.k.shushan.common.mq.DirectReceiverV2   : 2---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:28, msgId=9c3318df-35a1-44c3-8ac3-395e7932c45d}
2023-10-10T16:33:28.327+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:28.327+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:29.047+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:29.047+08:00  INFO 27232 --- [ntContainer#0-1] c.k.shushan.common.mq.DirectReceiver     : 1---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:29, msgId=c5959bbd-dfb2-485f-86f1-19e0617d9e30}
2023-10-10T16:33:29.047+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:29.047+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:38.846+08:00  INFO 27232 --- [ntContainer#1-1] c.k.shushan.common.mq.DirectReceiverV2   : 2---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:38, msgId=7b38272e-133e-4aac-affc-4dc22a4d3ade}
2023-10-10T16:33:38.846+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:38.846+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:38.846+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:39.588+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:39.588+08:00  INFO 27232 --- [ntContainer#0-1] c.k.shushan.common.mq.DirectReceiver     : 1---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:39, msgId=7ddaf70b-db56-440e-b32e-21c299cfd374}
2023-10-10T16:33:39.588+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:39.588+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:40.307+08:00  INFO 27232 --- [ntContainer#1-1] c.k.shushan.common.mq.DirectReceiverV2   : 2---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:40, msgId=2168972a-1f29-46a1-9c0f-1d90871d6aee}
2023-10-10T16:33:40.307+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:40.307+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:40.307+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:40.962+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:40.962+08:00  INFO 27232 --- [ntContainer#0-1] c.k.shushan.common.mq.DirectReceiver     : 1---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:40, msgId=3c2c55b7-746a-4c3b-9d4d-da1f52a7e32a}
2023-10-10T16:33:40.962+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:40.962+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
2023-10-10T16:33:41.710+08:00  INFO 27232 --- [ntContainer#1-1] c.k.shushan.common.mq.DirectReceiverV2   : 2---receiver msg{msg=demo msg ,kexuexiong, createTime=2023-10-10 16:33:41, msgId=e276c091-6526-4c1f-ba18-76c6aa7577d7}
2023-10-10T16:33:41.711+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:33:41.711+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:33:41.711+08:00  INFO 27232 --- [nectionFactory1] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null
4、Topic模式

TopicRabbitConfig 

package com.kexuexiong.shushan.common.mq;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class TopicRabbitConfig {

    @Bean
    public Queue bigCarQueue(){
        return new Queue(MqConstant.BIG_CAR_TOPIC);
    }

    @Bean
    public Queue smallCarQueue(){
        return new Queue(MqConstant.SMALL_CAR_TOPIC);
    }

    @Bean
    public TopicExchange exchange(){
        return new TopicExchange(MqConstant.topicExchange);
    }

    @Bean
    Binding bindingExchangeMessage(){
        return BindingBuilder.bind(bigCarQueue()).to(exchange()).with(MqConstant.BIG_CAR_TOPIC);
    }

    @Bean
    public Binding bindingExchangeMessageSmall(){
        return BindingBuilder.bind(smallCarQueue()).to(exchange()).with(MqConstant.TOPIC_ALL);
    }


}

TopicBigCarReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Slf4j
@Component
@RabbitListener(queues = MqConstant.BIG_CAR_TOPIC)
public class TopicBigCarReceiver {

    @RabbitHandler
    public void process(Map msg){
        log.info("topicBigCarReceiver msg :"+msg);
    }
}

TopicSmallCarReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Slf4j
@Component
@RabbitListener(queues = MqConstant.SMALL_CAR_TOPIC)
public class TopicSmallCarReceiver {


    @RabbitHandler
    public void process(Map msg){
        log.info("TopicSmallCarReceiver msg :"+msg);
    }
}


package com.kexuexiong.shushan.controller.mq;

import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.RandomUtil;
import com.kexuexiong.shushan.common.mq.MqConstant;
import com.kexuexiong.shushan.controller.BaseController;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.MessagePostProcessor;
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.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

@Slf4j
@RestController
@RequestMapping("/mq/")
public class MqController extends BaseController {

    @Autowired
    RabbitTemplate rabbitTemplate;



    @GetMapping("/sendTopicMessageBigCar")
    public String sendTopicMessageBigCar(){
        String msgId = UUID.randomUUID().toString();
        String msg = "demo msg ,BIG CAR";
        String createTime = DateUtil.format(new Date(),"YYYY-MM-dd HH:mm:ss");

        Map<String,Object> map = new HashMap();
        map.put("msgId",msgId);
        map.put("msg",msg);
        map.put("createTime",createTime);
        rabbitTemplate.convertAndSend(MqConstant.topicExchange,MqConstant.BIG_CAR_TOPIC,map);
        return "ok";
    }

    @GetMapping("/sendTopicMessageSmallCar")
    public String sendTopicMessageSmallCar(){
        String msgId = UUID.randomUUID().toString();
        String msg = "demo msg ,small CAR";
        String createTime = DateUtil.format(new Date(),"YYYY-MM-dd HH:mm:ss");

        Map<String,Object> map = new HashMap();
        map.put("msgId",msgId);
        map.put("msg",msg);
        map.put("createTime",createTime);
        rabbitTemplate.convertAndSend(MqConstant.topicExchange,MqConstant.SMALL_CAR_TOPIC,map);
        return "ok";
    }

}

在这里插入图片描述

2023-10-10T16:37:05.876+08:00  INFO 27232 --- [ntContainer#5-1] c.k.s.common.mq.TopicBigCarReceiver      : topicBigCarReceiver msg :{msg=demo msg ,BIG CAR, createTime=2023-10-10 16:37:05, msgId=333bb01b-0bf9-4d24-b140-f2814fb0e416}
2023-10-10T16:37:05.876+08:00  INFO 27232 --- [ntContainer#6-1] c.k.s.common.mq.TopicSmallCarReceiver    : TopicSmallCarReceiver msg :{msg=demo msg ,BIG CAR, createTime=2023-10-10 16:37:05, msgId=333bb01b-0bf9-4d24-b140-f2814fb0e416}
2023-10-10T16:37:05.878+08:00  INFO 27232 --- [nectionFactory2] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:37:05.879+08:00  INFO 27232 --- [nectionFactory2] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:37:05.879+08:00  INFO 27232 --- [nectionFactory2] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null

应为SMALL_CAR_TOPIC既符合topic.big_car也符合topic.#所以消息都会被路由进SMALL_CAR_TOPIC队列和BIG_CAR_TOPIC队列中。

在这里插入图片描述

2023-10-10T16:42:07.369+08:00  INFO 27232 --- [ntContainer#6-1] c.k.s.common.mq.TopicSmallCarReceiver    : TopicSmallCarReceiver msg :{msg=demo msg ,small CAR, createTime=2023-10-10 16:42:07, msgId=fa42a681-22cc-4489-b816-c2fae6050b98}
2023-10-10T16:42:07.370+08:00  INFO 27232 --- [nectionFactory3] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:42:07.370+08:00  INFO 27232 --- [nectionFactory3] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:42:07.370+08:00  INFO 27232 --- [nectionFactory3] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null

该消息只有TopicSmallCarReceiver 消费。

5、Fanout模式

FanoutRabbitConfig 

package com.kexuexiong.shushan.common.mq;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.FanoutExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class FanoutRabbitConfig {


    @Bean
    public Queue queueA(){
        return new Queue(MqConstant.FANOUT_A);
    }

    @Bean
    public Queue queueB(){
        return new Queue(MqConstant.FANOUT_B);
    }

    @Bean
    public Queue queueC(){
        return new Queue(MqConstant.FANOUT_C);
    }

    @Bean
    FanoutExchange fanoutExchange(){
        return new FanoutExchange(MqConstant.FANOUT_EXCHANGE);
    }

    @Bean
    public Binding bindingExchangeA(){
        return BindingBuilder.bind(queueA()).to(fanoutExchange());
    }

    @Bean
    public Binding bindingExchangeB(){
        return BindingBuilder.bind(queueB()).to(fanoutExchange());
    }

    @Bean
    public Binding bindingExchangeC(){
        return BindingBuilder.bind(queueC()).to(fanoutExchange());
    }


}

FanoutAReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Slf4j
@Component
@RabbitListener(queues = MqConstant.FANOUT_A)
public class FanoutAReceiver {


    @RabbitHandler
    public void process(Map msg){
        log.info("FanoutAReceiver msg :"+msg);
    }
}

FanoutBReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Slf4j
@Component
@RabbitListener(queues = MqConstant.FANOUT_B)
public class FanoutBReceiver {


    @RabbitHandler
    public void process(Map msg){
        log.info("FanoutBReceiver msg :"+msg);
    }
}

FanoutCReceiver 消费者

package com.kexuexiong.shushan.common.mq;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

import java.util.Map;

@Slf4j
@Component
@RabbitListener(queues = MqConstant.FANOUT_C)
public class FanoutCReceiver {


    @RabbitHandler
    public void process(Map msg){
        log.info("FanoutCReceiver msg :"+msg);
    }
}

MqController 生产者

package com.kexuexiong.shushan.controller.mq;

import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.RandomUtil;
import com.kexuexiong.shushan.common.mq.MqConstant;
import com.kexuexiong.shushan.controller.BaseController;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.MessagePostProcessor;
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.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

@Slf4j
@RestController
@RequestMapping("/mq/")
public class MqController extends BaseController {

    @Autowired
    RabbitTemplate rabbitTemplate;

    @GetMapping("/sendTopicMessageFanoutMsg")
    public String sendTopicMessageFanoutMsg(){
        String msgId = UUID.randomUUID().toString();
        String msg = "demo msg ,fanout msg";
        String createTime = DateUtil.format(new Date(),"YYYY-MM-dd HH:mm:ss");

        Map<String,Object> map = new HashMap();
        map.put("msgId",msgId);
        map.put("msg",msg);
        map.put("createTime",createTime);
        rabbitTemplate.convertAndSend(MqConstant.FANOUT_EXCHANGE,null,map);
        return "ok";
    }
}

测试
在这里插入图片描述

2023-10-10T16:46:36.226+08:00  INFO 27232 --- [ntContainer#4-1] c.k.shushan.common.mq.FanoutCReceiver    : FanoutCReceiver msg :{msg=demo msg ,fanout msg, createTime=2023-10-10 16:46:36, msgId=eca24bc1-4c70-456a-b026-b5d9b7ef0c21}
2023-10-10T16:46:36.226+08:00  INFO 27232 --- [ntContainer#3-1] c.k.shushan.common.mq.FanoutBReceiver    : FanoutBReceiver msg :{msg=demo msg ,fanout msg, createTime=2023-10-10 16:46:36, msgId=eca24bc1-4c70-456a-b026-b5d9b7ef0c21}
2023-10-10T16:46:36.226+08:00  INFO 27232 --- [ntContainer#2-1] c.k.shushan.common.mq.FanoutAReceiver    : FanoutAReceiver msg :{msg=demo msg ,fanout msg, createTime=2023-10-10 16:46:36, msgId=eca24bc1-4c70-456a-b026-b5d9b7ef0c21}
2023-10-10T16:46:36.229+08:00  INFO 27232 --- [nectionFactory4] c.k.shushan.common.config.RabbitConfig   : confirmCallback  data: null
2023-10-10T16:46:36.229+08:00  INFO 27232 --- [nectionFactory4] c.k.shushan.common.config.RabbitConfig   : confirmCallback ack :true
2023-10-10T16:46:36.229+08:00  INFO 27232 --- [nectionFactory4] c.k.shushan.common.config.RabbitConfig   : confirmCallback cause :null

FanoutAReceiver 、FanoutBReceiver 、FanoutCReceiver 都收到了消息相当于广播。

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