演算法導論-dp
阿新 • • 發佈:2021-08-05
生產者整合
引入依賴:
<!--父工程--> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.8.RELEASE</version> </parent> <!--依賴--> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency> </dependencies>
然後我們可以寫一個config類,來定義交換機和佇列,以及他們的繫結關係
package com.layton.rabbitmq.config; import org.springframework.amqp.core.*; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configurationpublic class RabbitMQConfig { public static final String Exchange_NAME = "boot_topic_exchange"; public static final String Queue_NAME = "boot_topic_queue"; //1.交換機 @Bean("bootExchange") public Exchange bootExchange(){ return ExchangeBuilder.topicExchange(Exchange_NAME).durable(true).build(); } //2.佇列 @Bean("bootQueue") public Queue bootQueue(){ return QueueBuilder.durable(Queue_NAME).build(); } //3.佇列和交換機繫結的關係Binding @Bean public Binding bindQueueExchange(@Qualifier("bootQueue") Queue queue,@Qualifier("bootExchange") Exchange exchange){ return BindingBuilder.bind(queue).to(exchange).with("boot.#").noargs(); } }
這樣繫結完了之後,我們可以在生產端想發訊息的地方注入RabbitTemplate工具類,然後完成方法的傳送
package com.layton.test; import com.layton.rabbitmq.config.RabbitMQConfig; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.amqp.rabbit.core.RabbitTemplate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; @SpringBootTest @RunWith(SpringRunner.class) public class ProducerTest { //1注入RabbitTemplate類 @Autowired private RabbitTemplate rabbitTemplate; @Test public void testSend(){ rabbitTemplate.convertAndSend(RabbitMQConfig.Exchange_NAME,"boot.haha","boot mq hello~"); } }
消費端整合
同樣的引入依賴:
<!--父工程--> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.8.RELEASE</version> </parent> <!--依賴--> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency> </dependencies>
然後定義消費端的監聽器,用於監聽佇列的資訊,需要注意的是RabbitListener註解中的queues屬性就是指定佇列名,同時需要注意這個類要加Component註解,讓spring進行管理
package com.layton.mq; import org.springframework.amqp.core.Message; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; @Component public class RabbitMQListener { @RabbitListener(queues = "boot_topic_queue") public void ListenerQueue(Message message){ System.out.println(message); } }一點一點積累,一點一點蛻變!