海报素材库网站免费,网站制作商城,长沙网站设计服务,没有排名的网站怎么做一、简介
在Spring项目中#xff0c;可以使用Spring-Rabbit去操作RabbitMQ
尤其是在spring boot项目中只需要引入对应的amqp启动器依赖即可#xff0c;方便的使用RabbitTemplate发送消息#xff0c;使用注解接收消息。
一般在开发过程中#xff1a;
生产者工程#xf…一、简介
在Spring项目中可以使用Spring-Rabbit去操作RabbitMQ
尤其是在spring boot项目中只需要引入对应的amqp启动器依赖即可方便的使用RabbitTemplate发送消息使用注解接收消息。
一般在开发过程中
生产者工程
application.yml文件配置相关信息在生产者工程中编写配置类用于创建交换机和队列并进行绑定注入RabbitTemplate对象通过RabbitTemplate对象发送消息到交换机
消费者工程
application.yml文件配置相关信息创建消息处理类用于接收队列中的消息并进行处理 二、项目结构 三、加入依赖jar dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-amqp/artifactId
/dependency 四、编写配置文件 spring:rabbitmq:username: userpassword: 123456virtual-host: /adminport: 5672
mq:exchange:name: test_exchange_topicqueue:name1: test_topic_exchange_queue1name2: test_topic_exchange_queue2 五、编写配置类
import org.springframework.amqp.core.*;
import org.springframework.amqp.core.ExchangeBuilder;
import org.springframework.amqp.core.QueueBuilder;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;Configuration
public class TopicConfig {Value(${mq.exchange.name})private String EXCHANGENAME;Value(${mq.queue.name1})private String QUEUENAME1;Value(${mq.queue.name2})private String QUEUENAME2;Bean(Exchange)public Exchange getExchange(){Exchange exchange ExchangeBuilder.topicExchange(EXCHANGENAME).durable(false).build();return exchange;}Bean(Queue1)public Queue getQueue1(){Queue build QueueBuilder.nonDurable(QUEUENAME1).build();return build;}Bean(Queue2)public Queue getQueue2(){Queue build QueueBuilder.nonDurable(QUEUENAME2).build();return build;}Bean(Binding1)public Binding bindingQueueToExchange1(Qualifier(Exchange)Exchange exchange,Qualifier(Queue1) Queue queue){Binding noargs BindingBuilder.bind(queue).to(exchange).with(test.#).noargs();return noargs;}Bean(Binding2)public Binding bindingQueueToExchange2(Qualifier(Exchange)Exchange exchange,Qualifier(Queue2) Queue queue){Binding noargs BindingBuilder.bind(queue).to(exchange).with(test.*).noargs();return noargs;}
}
六、测试类
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;import javax.annotation.Resource;SpringBootTest
public class ProductTest {Value(${mq.exchange.name})private String EXCHANGENAME;ResourceRabbitTemplate rabbitTemplate;org.junit.jupiter.api.Testpublic void t1(){rabbitTemplate.convertAndSend(EXCHANGENAME,test.t,随便测试);}
}
七. 消费者消费消息 Component
public class Comm {RabbitListener(queues test_topic_exchange_queue1)public void t1(Message message){byte[] body message.getBody();String string new String(body);System.out.println(string----------------);}}八、消息的可靠性传递
1.Confirm
(1) 修改application.yml文件 (2) 写一个测试类
SpringBootTest
public class ProductTest {Value(${mq.exchange.name})private String EXCHANGENAME;ResourceRabbitTemplate rabbitTemplate;org.junit.jupiter.api.Testpublic void t2(){rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {Overridepublic void confirm(CorrelationData correlationData, boolean b, String s) {if (b) {System.out.println(发送成功);}else {System.out.println(发送不成功s);}}});rabbitTemplate.convertAndSend(EXCHANGENAME,test.t,随便测试);}
}
2. Return
(1) 配置文件中设置回退模式 spring:rabbitmq:username: userpassword: 123456virtual-host: /adminport: 5672host: 192.168.44.64publisher-returns: true
# publisher-confirm-type: correlated
mq:exchange:name: test_exchange_topicqueue:name1: test_topic_exchange_queue1name2: test_topic_exchange_queue2 (2) 测试 import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;import javax.annotation.Resource;SpringBootTest
public class ProductTest {Value(${mq.exchange.name})private String EXCHANGENAME;ResourceRabbitTemplate rabbitTemplate;org.junit.jupiter.api.Testpublic void t1(){rabbitTemplate.convertAndSend(EXCHANGENAME,test.t,随便测试);}org.junit.jupiter.api.Testpublic void t2(){rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {Overridepublic void confirm(CorrelationData correlationData, boolean b, String s) {if (b) {System.out.println(发送成功);}else {System.out.println(发送不成功s);}}});rabbitTemplate.convertAndSend(EXCHANGENAME,test.t,随便测试);}org.junit.jupiter.api.Testpublic void t3(){rabbitTemplate.setMandatory(true);rabbitTemplate.setReturnsCallback(returnedMessage -System.out.println(消息回退new String(returnedMessage.getMessage().getBody())));rabbitTemplate.convertAndSend(EXCHANGENAME,test.a,测试测试);}
}
