springboot整合rabbitmq,支持消息确认机制

安装

推荐一篇博客https://blog.csdn.net/zhuzhezhuzhe1/article/details/80464291

项目结构

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>

     <groupId>com.example</groupId>
     <artifactId>rabbitmq</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <packaging>jar</packaging>

     <name>rabbitmq</name>
     <description>Spring Boot 整合RabbitMQ</description>

     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.0.5.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>

     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
     </properties>

     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
         </dependency>

         <!-- rabbitmq -->
         <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>
             <scope>test</scope>
         </dependency>
     </dependencies>

     <build>
         <plugins>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
         </plugins>
     </build>

 </project>

POM.XML

application.yml

需要将publisher-confrems设为true，启动确认回调, 将 publisher-returns设为true 确认返回回调

rabbitmq配置类--RabbitConfig

第一部分, 定义队列

第二部分，设置一些消息处理策略

 package com.example.rabbitmq;

 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.amqp.core.Queue;
 import org.springframework.amqp.rabbit.core.RabbitTemplate;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

 import javax.annotation.Resource;

 /**
  * rabbitMq 配置类
  * @author milicool
  * Created on 2018/9/14
  */
 @Configuration
 public class RabbitConfig {
     @Resource
     private RabbitTemplate rabbitTemplate;

     /**
      * 定义一个hello的队列
      * Queue 可以有4个参数
      *      1.队列名
      *      2.durable       持久化消息队列 ,rabbitmq重启的时候不需要创建新的队列 默认true
      *      3.auto-delete   表示消息队列没有在使用时将被自动删除 默认是false
      *      4.exclusive     表示该消息队列是否只在当前connection生效,默认是false
      */
     @Bean
     public Queue helloQueue() {
         return new Queue("queue-test");
     }

     /** ======================== 定制一些处理策略 =============================*/

     /**
      * 定制化amqp模版
      *
      * ConfirmCallback接口用于实现消息发送到RabbitMQ交换器后接收ack回调   即消息发送到exchange  ack
      * ReturnCallback接口用于实现消息发送到RabbitMQ 交换器，但无相应队列与交换器绑定时的回调  即消息发送不到任何一个队列中  ack
      */
     @Bean
     public RabbitTemplate rabbitTemplate() {
         Logger log = LoggerFactory.getLogger(RabbitTemplate.class);

         // 消息发送失败返回到队列中, yml需要配置 publisher-returns: true
         rabbitTemplate.setMandatory(true);

         // 消息返回, yml需要配置 publisher-returns: true
         rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> {
             String correlationId = message.getMessageProperties().getCorrelationIdString();
             log.debug("消息：{} 发送失败, 应答码：{} 原因：{} 交换机: {}  路由键: {}", correlationId, replyCode, replyText, exchange, routingKey);
         });

         // 消息确认, yml需要配置 publisher-confirms: true
         rabbitTemplate.setConfirmCallback((correlationData, ack, cause) -> {
             if (ack) {
                 // log.debug("消息发送到exchange成功,id: {}", correlationData.getId());
             } else {
                 log.debug("消息发送到exchange失败,原因: {}", cause);
             }
         });

         return rabbitTemplate;
     }
 }

配置类

生产者

 /**
  * 生产者
  * @author milicool
  * Created on 2018/9/14
  */
 @Component
 public class Producer {

     @Autowired
     private RabbitTemplate rabbitTemplate;

     /**
      * 给hello队列发送消息
      */
     public void send() {
         for (int i =0; i< 100; i++) {
             String msg = "hello, 序号: " + i;
             System.out.println("Producer, " + msg);
             rabbitTemplate.convertAndSend("queue-test", msg);
         }
     }

 }

消费者

 /**
  * 消费者
  * @author milicool
  * Created on 2018/9/14
  */
 @Component
 public class Comsumer {
     private Logger log = LoggerFactory.getLogger(Comsumer.class);

     @RabbitListener(queues = "queue-test")
     public void process(Message message, Channel channel) throws IOException {
         // 采用手动应答模式, 手动确认应答更为安全稳定
         channel.basicAck(message.getMessageProperties().getDeliveryTag(), true);
         log.info("receive: " + new String(message.getBody()));
     }
 }

测试类

 @RunWith(SpringRunner.class)
 @SpringBootTest
 public class RabbitmqApplicationTests {

     @Autowired
     private Producer producer;

     @Test
     public void contextLoads() {
         producer.send();
     }

 }

测试结果

测试结果太长，没有截取全部，可以查看到消费者接收到了全部消息，如果有的消息在没有接收完，消息将被持久化，下次启动时消费

web端查看

感谢阅读  o(∩_∩)o