RabbitMQ -springboot整合rabbitmq

课程：https://www.cnblogs.com/guchunchao/p/13173406.html

阅读目录

• 配置生产者
• 配置消费者

导入pom.xml

<?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 https://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>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.everjiankang</groupId>
    <artifactId>rabbitmqDemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>rabbitmqDemo</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-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!--  导入配置文件处理器，配置文件进行绑定就会有提示 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.71</version>
        </dependency>
        <dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

回到顶部

配置生产者

第一步：配置application.properties

spring.rabbitmq.addresses=127.0.0.1:5672
spring.rabbitmq.username=xiaochao
spring.rabbitmq.password=root
spring.rabbitmq.virtual-host=/
spring.rabbitmq.connection-timeout=15000
#生产端配置
#开启发送确认,此配置在Springboot2.3.0版本中已经@Deprecated了，默认就是
# spring.rabbitmq.publisher-confirms=true
#
spring.rabbitmq.publisher-confirm-type=simple
#开启发送失败退回
spring.rabbitmq.publisher-returns=true
#开启执行return回调
spring.rabbitmq.template.mandatory=true

第二步：开发启动类Application.java

package com.dwz.springboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

第三步：加入实体类order

package com.everjiankang.dependency.model;
import java.io.Serializable;
public class Order implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private String id;
    private String name;
    public Order() {
    }
    public Order(String id, String name) {
        super();
        this.id = id;
        this.name = name;
    }
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    } 
}

第四步：开发消息发送方法

　　（需要先手动创建交换器、队列、绑定关系。或者通过代码Build）

package com.everjiankang.dependency.springboot.producer;
import java.util.Map;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.core.RabbitTemplate.ConfirmCallback;
import org.springframework.amqp.rabbit.core.RabbitTemplate.ReturnCallback;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Component;
import com.everjiankang.dependency.model.Order;
@Component
public class RabbitmqSender {
    @Autowired
    private RabbitTemplate rabbitTemplate;
    /**
     * publisher-confirms,实现一个监听器用于监听broker端给我们返回的确认请求：
     * RabbitTemplate.ConfirmCallback
     * 
     * publisher-returns，保证消息对broker端是可达的，如果出现路由键不可达的情况，
     *     则使用监听器对不可达的消息进行后续的处理，保证消息的路由成功：
     * RabbitTemplate.ReturnCallback
     * 
     * 注意：在发送消息的时候对template配置mandatory=true保证ReturnCallback监听有效
     * 生产端还可以配置其他属性，比如发送重试，超时时间、次数、间隔等。
     */
    final ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() {
        @Override
        public void confirm(CorrelationData correlationData, boolean ack, String cause) {
            System.err.println("confirm correlationData:" + correlationData);
            System.err.println("confirm ack:" + ack);
            if(!ack) {
                System.err.println("异常处理。。。");
            }
        }
    };
    final ReturnCallback returnCallback = new RabbitTemplate.ReturnCallback() {
        @Override
        public void returnedMessage(org.springframework.amqp.core.Message message, int replyCode, String replyText,
                String exchange, String routingKey) {
            System.err.println("return exchange:" + exchange);
            System.err.println("return routingKey:" + routingKey);
            System.err.println("return replyCode:" + replyCode);
            System.err.println("return replyText:" + replyText);
        }
    };
    public void send(Object message, Map<String, Object> properties) throws Exception {
        MessageHeaders mhs = new MessageHeaders(properties);
        Message msg = MessageBuilder.createMessage(message, mhs);
        rabbitTemplate.setConfirmCallback(confirmCallback);
        rabbitTemplate.setReturnCallback(returnCallback);
        CorrelationData correlationData = new CorrelationData();
        //实际消息的唯一id
        correlationData.setId("dwz123456");//id + 时间戳 （必须是全局唯一的）
        rabbitTemplate.convertAndSend("exchange-1", "spring.abc", msg, correlationData);
    }
    public void sendOrder(Order order) throws Exception {
        rabbitTemplate.setConfirmCallback(confirmCallback);
        rabbitTemplate.setReturnCallback(returnCallback);
        CorrelationData correlationData = new CorrelationData();
        correlationData.setId("zheaven123456");//id + 时间戳 （必须是全局唯一的）
        rabbitTemplate.convertAndSend("exchange-2", "springboot.def", order, correlationData);
    }
}

第五步：测试发送消息

package com.dwz.springboot;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
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;
import com.dwz.springboot.entity.Order;
import com.dwz.springboot.producer.RabbitSender;
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootTest {
    @Autowired
    private RabbitSender send;
    private static SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
    @Test
    public void testSender1() throws Exception {
        Map<String, Object> properties = new HashMap<String, Object>();
        properties.put("number", "12345");
        properties.put("send_time", simpleDateFormat.format(new Date()));
        send.send("Hello Rabbirmq For springboot!", properties);
    }
    @Test
    public void testSender2() throws Exception {
        Order order = new Order("001", "第一个订单");
        send.sendOrder(order);
    }
}

回到顶部

配置消费者

第一步：配置application.properties

spring.rabbitmq.addresses=127.0.0.1:5672
spring.rabbitmq.username=xiaochao
spring.rabbitmq.password=root
spring.rabbitmq.virtual-host=/vhost_dwz
spring.rabbitmq.connection-timeout=15000
#消费端配置
#配置手工确认模式，用于ACK的手工处理，这样我们可以保证消息的可靠性送达，或者在消费端消费失败的时候可以做到重回队列、根据业务记录日志等处理
spring.rabbitmq.listener.simple.acknowledge-mode=manual
#可以设置消费端的监听个数和最大个数，用于控制消费端的并发情况
spring.rabbitmq.listener.simple.concurrency=5
spring.rabbitmq.listener.simple.max-concurrency=10
#消费端binding配置 ,以订单为例
spring.rabbitmq.listener.order.queue.name=queue-2
spring.rabbitmq.listener.order.queue.durable=true
spring.rabbitmq.listener.order.exchange.name=exchange-2
spring.rabbitmq.listener.order.exchange.durable=true
spring.rabbitmq.listener.order.exchange.type=topic
spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions=true
spring.rabbitmq.listener.order.key=springboot.*

第二步：开发启动类Application.java

package com.dwz.springboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

第三步：添加主配置类

package com.dwz.springboot;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan({"com.dwz.springboot.*"})
public class MainConfig {
}

第四步：添加消息处理方法

package com.dwz.springboot.consumer;
import java.util.Map;
import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.support.AmqpHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;
import com.dwz.springboot.entity.Order;
import com.rabbitmq.client.Channel;
@Component
public class RabbitReceiver {
    //此配置可以直接创建Exchange、Queue、Binding
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(
                        name = "queue-1",
                        durable = "true"
                    ),
            exchange = @Exchange(
                        name = "exchange-1",
                        durable = "true",
                        type = "topic",
                        ignoreDeclarationExceptions = "true"
                    ),
            key = "springboot.*"
            )
    )
    @RabbitHandler
    public void onMessage(Message message, Channel  channel) throws Exception {
        System.err.println("------------------------------------");
        System.err.println("消费端Payload:" + message.getPayload());
        Long deliverytag = (Long)message.getHeaders().get(AmqpHeaders.DELIVERY_TAG);
        //手工ACK
        channel.basicAck(deliverytag, false);
    }
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(
                        name = "${spring.rabbitmq.listener.order.queue.name}",
                        durable = "${spring.rabbitmq.listener.order.queue.durable}"
                    ),
            exchange = @Exchange(
                        name = "${spring.rabbitmq.listener.order.exchange.name}",
                        durable = "${spring.rabbitmq.listener.order.exchange.durable}",
                        type = "${spring.rabbitmq.listener.order.exchange.type}",
                        ignoreDeclarationExceptions = "${spring.rabbitmq.listener.order.exchange.ignoreDeclarationExceptions}"
                    ),
            key = "${spring.rabbitmq.listener.order.key}"
            )
    )
    @RabbitHandler
    //将Message用@Payload和@Headers拆分
    //@Payload表示body里面的信息，@Headers表示properties的信息
    public void onOrderMessage(@Payload Order order, Channel  channel,
            @Headers Map<String, Object> headers) throws Exception {
        System.err.println("------------------------------------");
        System.err.println("消费端Order:" + order.getId());
        Long deliverytag = (Long)headers.get(AmqpHeaders.DELIVERY_TAG);
        //手工ACK
        channel.basicAck(deliverytag, false);
    }
}

参考blog：

https://www.cnblogs.com/zheaven/p/11915480.html

参考视频：

https://www.bilibili.com/video/BV1Fz411B77A?p=34