这篇文章主要介绍了spring boot整合RabbitMQ的实例讲解（Fanout模式）,非常不错，具有参考借鉴价值，需要的朋友可以参考下
1.Fanout Exchange介绍
Fanout Exchange 消息广播的模式，不管路由键或者是路由模式，会把消息发给绑定给它的全部队列，如果配置了routing_key会被忽略。
如上图所示，即当使用fanout交换器时，他会将消息广播到与该交换器绑定的所有队列上，这有利于你对单条消息做不同的反应。
例如存在以下场景：一个web服务要在用户完善信息时，获得积分奖励，这样你就可以创建两个对列，一个用来处理用户信息的请求，另一个对列获取这条消息是来完成积分奖励的任务。
2.代码示例
1）.Queue配置类
FanoutRabbitConfig.java类：
package com.example.rabbitmqfanout; 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 { //创建队列 @Bean public Queue AMessage() { return new Queue("fanout.A"); } //创建队列 @Bean public Queue BMessage() { return new Queue("fanout.B"); } //创建队列 @Bean public Queue CMessage() { return new Queue("fanout.C"); } //创建Fanout交换器 @Bean FanoutExchange fanoutExchange() { return new FanoutExchange("fanoutExchange"); } //将对列绑定到Fanout交换器 @Bean Binding bindingExchangeA(Queue AMessage,FanoutExchange fanoutExchange) { return BindingBuilder.bind(AMessage).to(fanoutExchange); } //将对列绑定到Fanout交换器 @Bean Binding bindingExchangeB(Queue BMessage, FanoutExchange fanoutExchange) { return BindingBuilder.bind(BMessage).to(fanoutExchange); } //将对列绑定到Fanout交换器 @Bean Binding bindingExchangeC(Queue CMessage, FanoutExchange fanoutExchange) { return BindingBuilder.bind(CMessage).to(fanoutExchange); } }2）.消息生产者
FanoutSender.java类:
package com.example.rabbitmqfanout.rabbitmq; import org.springframework.amqp.core.AmqpTemplate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; @Component public class FanoutSender { @Autowired private AmqpTemplate rabbitTemplate; public void send() { String context = "hi, fanout msg "; System.out.println("Sender : " + context); this.rabbitTemplate.convertAndSend("fanoutExchange","", context); } }3）.消息消费者
FanoutReceiverA.java类：
package com.example.rabbitmqfanout.rabbitmq; import org.springframework.amqp.rabbit.annotation.RabbitHandler; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; @Component @RabbitListener(queues = "fanout.A") public class FanoutReceiverA { @RabbitHandler public void process(String message) { System.out.println("fanout Receiver A : " + message); } }FanoutReceiverB.java类：
package com.example.rabbitmqfanout.rabbitmq; import org.springframework.amqp.rabbit.annotation.RabbitHandler; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; @Component @RabbitListener(queues = "fanout.B") public class FanoutReceiverB { @RabbitHandler public void process(String message) { System.out.println("fanout Receiver B: " + message); } }FanoutReceiverC.java类：
package com.example.rabbitmqfanout.rabbitmq; import org.springframework.amqp.rabbit.annotation.RabbitHandler; import org.springframework.amqp.rabbit.annotation.RabbitListener; import org.springframework.stereotype.Component; @Component @RabbitListener(queues = "fanout.C") public class FanoutReceiverC { @RabbitHandler public void process(String message) { System.out.println("fanout Receiver C: " + message); } }4）.测试
FanoutTest.java类：
package com.example.rabbitmqfanout.rabbitmq; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; @RunWith(SpringRunner.class) @SpringBootTest public class FanoutTest { @Autowired private FanoutSender sender; @Test public void fanoutSender() throws Exception { sender.send(); } }以上所述是小编给大家介绍的spring boot整合RabbitMQ（Fanout模式），希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对html中文网网站的支持！
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