RabbitMq入门（三）springBoot整合RabbitMQ

淡淡的烟草味﹌ 2022-04-24 13:42 213阅读 0赞

### 1、配置pom文件 ###

此过程可以使用spring start project选择需要的web、和rabbitMQ模块快速构建

最终pom.xml如下

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.4.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.whwe</groupId>
        <artifactId>rabbitmq-demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>rabbitmq-demo</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-amqp</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

### 2、配置编写配置文件 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6YXVfaXRkb2c_size_16_color_FFFFFF_t_70][]

server:
      port: 9001
    spring:
      application:
      rabbitmq:
          host: 192.168.20.129
          port: 5672
          username: guest
          password: guest
          virtualHost: /

### 3、声明交换机、队列等配置信息 ###

package com.whwe.rabbitmqdemo.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;
    
    /**
     * @ClassName RabbitmqConfig
     * @Description TODO
     * @Author yueyiming
     * @Date 2019/4/26 16:24
     * @Version 1.0
     * https://blog.csdn.net/hzau_itdog
     **/
    @Configuration
    public class RabbitmqConfig {
        //对列名称
        public static final String QUEUE_INFORM_EMAIL = "queue_inform_email";
        public static final String QUEUE_INFORM_SMS = "queue_inform_sms";
        //交换机
        public static final String EXCHANGE_TOPICS_INFORM = "exchange_topics_inform";
    
        //声明队列
        @Bean(QUEUE_INFORM_EMAIL)
        public Queue QUEUE_INFORM_EMAIL() {
            return new Queue(QUEUE_INFORM_EMAIL);
        }
    
        @Bean(QUEUE_INFORM_SMS)
        public Queue QUEUE_INFORM_SMS() {
            return new Queue(QUEUE_INFORM_SMS);
        }
    
        //声明交换机
        @Bean(EXCHANGE_TOPICS_INFORM)
        public Exchange exchange() {
            return ExchangeBuilder.topicExchange(EXCHANGE_TOPICS_INFORM).durable(true).build();
        }
    
        //绑定队列和交换机
        @Bean
        public Binding binding_email(@Qualifier(EXCHANGE_TOPICS_INFORM) Exchange exchange, @Qualifier(QUEUE_INFORM_EMAIL) Queue queue) {
            return BindingBuilder.bind(queue).to(exchange).with("inform.sms.email").noargs();
    
        }
    
    }

使用***rabbitTemplate***发送消息

@RestController
    public class TestController {
        @Autowired
        private RabbitTemplate rabbitTemplate;
        @RequestMapping("/test")
        public String test(){
            rabbitTemplate.convertAndSend(RabbitmqConfig.EXCHANGE_TOPICS_INFORM,"inform.sms.email","发了消息");
            return"success";
    
        }
    }

编写消费者

package com.whwe.rabbitmqdemo.config;
    
    import com.rabbitmq.client.Channel;
    import org.springframework.amqp.core.Message;
    import org.springframework.amqp.rabbit.annotation.RabbitListener;
    import org.springframework.stereotype.Component;
    
    import java.io.UnsupportedEncodingException;
    
    /**
     * @ClassName ConsumerRabbit
     * @Description TODO
     * @Author yueyiming
     * @Date 2019/4/28 9:48
     * @Version 1.0
     * https://blog.csdn.net/hzau_itdog
     **/
    @Component
    public class ConsumerRabbit {
        @RabbitListener(queues = {RabbitmqConfig.QUEUE_INFORM_EMAIL})
        public void receiveMsg(String msg, Message message, Channel channel) throws UnsupportedEncodingException {
            System.out.println(msg);
            System.out.println(message.getBody());
            System.out.println(new String(message.getBody(),"utf-8"));
    
        }
    }

启动访问 [http://127.0.0.1:9001/test][http_127.0.0.1_9001_test]

发现如下错误

com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'auto_delete' for queue 'queue_inform_sms' in vhost '/': received 'false' but current is 'true', class-id=50, method-id=10)
    	at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:516) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:346) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:178) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:111) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:670) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:48) ~[amqp-client-5.4.3.jar:5.4.3]
    	at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:597) ~[amqp-client-5.4.3.jar:5.4.3]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_202]

原因是vhost的权限并未设置

使用如下命令

rabbitmqctl set_permissions  -p / guest "."  "." "."

![20190428101404431.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6YXVfaXRkb2c_size_16_color_FFFFFF_t_70 1][]

![20190428101757361.png][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6YXVfaXRkb2c_size_16_color_FFFFFF_t_70]: /images/20220214/cebb7dee89224b278eebe215641c8647.png
[http_127.0.0.1_9001_test]: http://127.0.0.1:9001/test
[20190428101404431.png]: /images/20220214/3f2113754a794c41966361b3629392f7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6YXVfaXRkb2c_size_16_color_FFFFFF_t_70 1]: /images/20220214/8c0c7ad4dda0419aa6f1b333f558b7cb.png
[20190428101757361.png]: /images/20220214/6cb3f4cb74d44a51b9cad34362040dbc.png