1、RabbitMQ是一个在AMQP基础上构建的新一代企业级消息系统，该组件由Pivotal公司提供，使用ErLang语言开发。
修改pom.xml配置文件，追加spring-boot-starter-amqp依赖包。
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 5 https://maven.apache.org/xsd/maven-4.0.0.xsd"> 6 <modelVersion>4.0.0</modelVersion> 7 <parent> 8 <groupId>org.springframework.boot</groupId> 9 <artifactId>spring-boot-starter-parent</artifactId> 10 <version>2.3.5.RELEASE</version> 11 <relativePath /> <!-- lookup parent from repository --> 12 </parent> 13 <groupId>com.example</groupId> 14 <artifactId>demo</artifactId> 15 <version>0.0.1-SNAPSHOT</version> 16 <name>demo</name> 17 <description>Demo project for Spring Boot</description> 18 19 <properties> 20 <java.version>1.8</java.version> 21 <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version> 22 </properties> 23 24 <dependencies> 25 <dependency> 26 <groupId>org.springframework.boot</groupId> 27 <artifactId>spring-boot-starter-web</artifactId> 28 </dependency> 29 30 <dependency> 31 <groupId>org.springframework.boot</groupId> 32 <artifactId>spring-boot-starter-test</artifactId> 33 <scope>test</scope> 34 <exclusions> 35 <exclusion> 36 <groupId>org.junit.vintage</groupId> 37 <artifactId>junit-vintage-engine</artifactId> 38 </exclusion> 39 </exclusions> 40 </dependency> 41 42 <!-- mysql驱动包 --> 43 <dependency> 44 <groupId>mysql</groupId> 45 <artifactId>mysql-connector-java</artifactId> 46 </dependency> 47 48 <!-- druid连接池 --> 49 <dependency> 50 <groupId>com.alibaba</groupId> 51 <artifactId>druid</artifactId> 52 <version>1.1.10</version> 53 </dependency> 54 55 <dependency> 56 <groupId>org.springframework.boot</groupId> 57 <artifactId>spring-boot-starter-data-jpa</artifactId> 58 </dependency> 59 <dependency> 60 <groupId>org.springframework.boot</groupId> 61 <artifactId>spring-boot-starter-cache</artifactId> 62 </dependency> 63 <dependency> 64 <groupId>org.hibernate</groupId> 65 <artifactId>hibernate-ehcache</artifactId> 66 </dependency> 67 68 <!-- activeMQ --> 69 <dependency> 70 <groupId>org.springframework.boot</groupId> 71 <artifactId>spring-boot-starter-activemq</artifactId> 72 </dependency> 73 74 <!-- rabbitMQ --> 75 <dependency> 76 <groupId>org.springframework.boot</groupId> 77 <artifactId>spring-boot-starter-amqp</artifactId> 78 </dependency> 79 </dependencies> 80 81 <build> 82 <plugins> 83 <plugin> 84 <groupId>org.springframework.boot</groupId> 85 <artifactId>spring-boot-maven-plugin</artifactId> 86 </plugin> 87 </plugins> 88 <resources> 89 <resource> 90 <directory>src/main/resources</directory> 91 <includes> 92 <include>**/*.properties</include> 93 <include>**/*.yml</include> 94 <include>**/*.xml</include> 95 <include>**/*.p12</include> 96 <include>**/*.html</include> 97 <include>**/*.jpg</include> 98 <include>**/*.png</include> 99 </includes> 100 </resource> 101 </resources> 102 </build> 103 104 </project>
修改yml.xml配置文件，进行RabbitMQ的相关配置，如下所示：
1 # RabbitMQ服务主机名称 2 spring.rabbitmq.addresses=192.168.110.133 3 # 用户名 4 spring.rabbitmq.username=admin 5 # 密码 6 spring.rabbitmq.password=admin 7 # 虚拟主机 8 spring.rabbitmq.virtual-host=/
这里搞一个消息生产配置类，用来进行消息处理，如下所示：
1 package com.demo.config;
2
3 import org.springframework.amqp.core.Binding;
4 import org.springframework.amqp.core.BindingBuilder;
5 import org.springframework.amqp.core.DirectExchange;
6 import org.springframework.amqp.core.Queue;
7 import org.springframework.context.annotation.Bean;
8 import org.springframework.context.annotation.Configuration;
9
10 @Configuration
11 public class RabbitMqConfig {
12
13 public static final String EXCHANGE = "rabbitmq.exchange"; // 交换空间名称
14 public static final String ROUTINGKEY = "rabbitmq.routingkey"; // 设置路由key
15 public static final String QUEUE_NAME = "rabbitmq.queue"; // 设置队列名称
16
17 /**
18 * 根据路由键将队列和交换机绑定到一起
19 *
20 * @param exchange
21 * @param queue
22 * @return
23 */
24 @Bean
25 public Binding bindingExchangeQueue(DirectExchange exchange, Queue queue) {
26 Binding binding = BindingBuilder.bind(queue).to(exchange).with(ROUTINGKEY);
27 return binding;
28 }
29
30 /**
31 * 使用直连的模式
32 *
33 * @return
34 */
35 @Bean
36 public DirectExchange getDirectExchage() {
37 return new DirectExchange(EXCHANGE, true, true);
38 }
39
40 /**
41 * 队列消息
42 *
43 * @return
44 */
45 @Bean
46 public Queue queue() {
47 return new Queue(QUEUE_NAME);
48 }
49
50 }
新建消息业务实现类，用于消息生产，如下所示：
1 package com.demo.producer;
2
3 import org.springframework.amqp.rabbit.core.RabbitTemplate;
4 import org.springframework.beans.factory.annotation.Autowired;
5 import org.springframework.stereotype.Service;
6
7 import com.demo.config.RabbitMqConfig;
8
9 @Service
10 public class RabbitMqMessageProducer {
11
12 @Autowired
13 private RabbitTemplate rabbitTemplate;
14
15 /**
16 * 消息发送，将交换机和路由器进行绑定
17 *
18 * @param msg
19 */
20 public void send(String msg) {
21 this.rabbitTemplate.convertAndSend(RabbitMqConfig.EXCHANGE, RabbitMqConfig.ROUTINGKEY, msg);
22 }
23
24 }
定义监听处理类，用于消息的消费，如下所示：
1 package com.demo.consumer;
2
3 import org.springframework.amqp.rabbit.annotation.RabbitListener;
4 import org.springframework.stereotype.Service;
5
6 @Service
7 public class RabbitMqConsumer {
8
9 /**
10 * 进行消息的接受处理
11 *
12 * @param text
13 */
14 @RabbitListener(queues = "rabbitmq.queue")
15 public void receiveMessage(String text) {
16 System.err.println("【*** 接受消息 ***】 " + text);
17 }
18
19 }
此时就实现了与RabbitMQ消息组件的整合，同时在整个程序中只需要调用IMessageProducer接口中的send()方法就可以正常发送，而后会找到设置同样ROUTINGKEY的消费者进行消息消费。
1 package com.demo.controller;
2
3 import org.springframework.beans.factory.annotation.Autowired;
4 import org.springframework.stereotype.Controller;
5 import org.springframework.web.bind.annotation.RequestMapping;
6 import org.springframework.web.bind.annotation.ResponseBody;
7
8 import com.demo.producer.RabbitMqMessageProducer;
9
10 @Controller
11 public class RabbitMqController {
12
13 @Autowired
14 private RabbitMqMessageProducer rabbitMqMessageProducer;
15
16 @RequestMapping(value = "/messageProducer")
17 @ResponseBody
18 public void findAll() {
19 for (int i = 0; i < 10000; i++) {
20 rabbitMqMessageProducer.send("rabbitMq producer message : " + i);
21 }
22 }
23
24 }
可以通过http://192.168.110.133:15672/观察，查看自己的生产消息和消费消息的情况，如下所示：
