springboot整合消息队列——RabbitMQ

RabbitMQ常用的三种Exchange Type:fanout、direct、topic。

  1. fanout:把所有发送到该Exchange的消息投递到所有与它绑定的队列中。
  2. direct:把消息投递到那些binding key与routing key完全匹配的队列中。
  3. topic:将消息路由到binding key与routing key模式匹配的队列中。

这里基于springboot整合​​消息队列​​,测试这三种Exchange。

  • 启动RabbitMQ

双击运行rabbitmq-server.bat

springboot整合消息队列——RabbitMQ

  • SpringBoot整合RabbitMQ——Direct模式(默认模式)

创建springboot web项目——发送者springboot-sender

追加测试和rabbitmq所需的依赖

<!-- 添加springboot对amqp的支持 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<!--添加测试包-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-test</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.0.9.RELEASE</version>
</dependency>

修改配置文件application.yml  application.properties:

server:
port: 7001
spring:
application:
name: spirngboot-sender
rabbitmq:
host: 127.0.0.1
port: 5672
username: guest
password: guest

发送的信息可以是基本数据类型也可以是对象,这里创建一个用户对象

public class User implements Serializable{
private String username;
private String password;

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}
}

创建一个配置类:SenderConfiguration.java

一个名为queue1的​​队列​

@Configuration
public class SenderConfiguration {
@Bean
public Queue directQueue() {
return new Queue("queue1");
}
}

创建一个发送信息类:SenderService.java

发送user对象给queue1队列

@Component
public class SenderService {
@Autowired
private AmqpTemplate template;

public void sendUser() {
User user=new User();
user.setUsername("张三");
user.setPassword("123456");
template.convertAndSend("queue1",user);
}
}

创建一个测试类:TestRabbitMQ.java

@SpringBootTest(classes=SpringbootSenderApplication.class)
@RunWith(SpringJUnit4ClassRunner.class)
public class TestRabbitMQ {
@Autowired
private SenderService senderService;

@Test
public void testRabbit() {
senderService.sendUser();
}
}

运行testRabbit方法:

springboot整合消息队列——RabbitMQ

创建springboot web项目——接收者springboot-receiver

修改配置文件application.yml  application.properties:

server:
port: 7002
spring:
application:
name: spirngboot-receiver
rabbitmq:
host: 127.0.0.1
port: 5672
username: guest
password: guest

添加接收类:ReceiverService.java

@Component
public class ReceiverService {
@RabbitListener(queues="queue1")
public void receiveUser(User user) {
System.out.println("username:"+user.getUsername()+" password:"+user.getPassword());
}
}

运行启动类:SpringbootApplication.java,结果:

springboot整合消息队列——RabbitMQ

springboot整合消息队列——RabbitMQ

信息成功被接收。

SpringBoot整合RabbitMQ——Topic模式(模糊匹配)

步骤与Direct差不多。

发送者:

修改配置类SenderConfiguration.java:

创建两个队列 topic1,topic2,创建一个topic交换器,绑定交换机和队列以及绑定规则

@Test
public void testRabbit() {
senderService.sendUser();
}@Bean(name="topic1")
public Queue topicQueue1() {
return new Queue("topic1");
}
@Bean(name="topic2")
public Queue topicQueue2() {
return new Queue("topic2");
}

@Bean
public TopicExchange exchange() {
//创建一个topic交换器
return new TopicExchange("topicExchange");
}
@Bean
Binding bindingExchangeTopic1(@Qualifier("topic1") Queue queueMessage, TopicExchange exchange) {
//设置topic1绑定规则
return BindingBuilder.bind(queueMessage).to(exchange).with("topic.queue");
}
@Bean
Binding bindingExchangeTopic2(@Qualifier("topic2") Queue queueMessages, TopicExchange exchange) {
//设置topic2绑定规则 *表示一个词,#表示零个或多个词
return BindingBuilder.bind(queueMessages).to(exchange).with("topic.#");
}

修改发送类SenderService.java

User user=new User();
user.setUsername("张三");
user.setPassword("123456");
//发送给topicExchange的交换机
template.convertAndSend("topicExchange","topic.queue",user);
template.convertAndSend("topicExchange","topic.anyting",user);

运行testRabbit方法:

springboot整合消息队列——RabbitMQ

成功广播出去两条信息

接收者:

修改接收类ReceiverService.java

@RabbitListener(queues="fanout1")
public void receiveFanout1(User user) {
System.out.println("队列:fanout1 username:"+user.getUsername()+" password:"+user.getPassword());
}
@RabbitListener(queues="fanout2")
public void receiveFanout2(User user) {
System.out.println("队列:fanout2 username:"+user.getUsername()+" password:"+user.getPassword());
}

运行启动类,结果:

springboot整合消息队列——RabbitMQ

springboot整合消息队列——RabbitMQ

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