RabbitMQ与springboot整合
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；
交换器：
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：
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";
}
}
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。
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：
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。