springboot整合rabbitMQ 死信队列（基本）

创建两个队列QA和QB，两者队列TTL分别设置为10S和40S，然后在创建一个交换机X和死信交换机Y，它们的类型都是direct，创建一个死信队列QD，它们的绑定关系如下

 pom.xml文件

代码语言：javascript复制

<?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>
    <groupId>com.example</groupId>
    <artifactId>demo6</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo6</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.4.5</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!--RabbitMQ依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
            <version>2.1.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok
            </groupId>
            <artifactId>lombok</artifactId>
        </dependency>  <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>  <!--RabbitMQ测试依赖-->
        <dependency>
            <groupId>org.springframework.amqp</groupId>
            <artifactId>spring-rabbit-test</artifactId>
            <scope>test</scope>
        </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>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jetbrains</groupId>
            <artifactId>annotations-java5</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

配置文件 

代码语言：javascript复制

spring.rabbitmq.host=192.168.231.135
spring.rabbitmq.port=5672
spring.rabbitmq.username=admin
spring.rabbitmq.password=123

配置类 

代码语言：javascript复制

@Configuration
public class TtlQueueConfig {
    public  static  final  String X_EXCHANGE="X";
    public  static  final  String QUEUE_A="QA";
    public  static  final  String QUEUE_B="QB";
    public  static  final  String Y_DEAD_LETTER_EXCHANGE="Y";
    public static final String DEAD_LETTER_QUEUE="QD";
    //声明XExchange
    @Bean("xExchange")
    public DirectExchange xExchange(){
        return new DirectExchange(X_EXCHANGE);
    }
    //声明YExchange
    @Bean("YExchange")
    public DirectExchange YExchange(){
        return new DirectExchange(Y_DEAD_LETTER_EXCHANGE);
    }
    //声明队列A TTL为10s，并绑定到对应的死信交换机
    @Bean("queueA")
    public Queue queueA(){
        Map<String,Object> args=new HashMap<String, Object>(3);
        //声明当前队列绑定的死信交换机
        args.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);
        //声明当前队列的死信路由key
        args.put("x-dead-letter-routing-key", "YD");
        //声明队列的TTL
        args.put("x-message-ttl", 10000);
        return QueueBuilder.durable(QUEUE_A).withArguments(args).build();
    }
    // 声明队列A绑定X交换机
    @Bean
    public Binding queueABindingX(@Qualifier("queueA") Queue queue,
                                  @Qualifier("xExchange")DirectExchange exchange)
    {
        return BindingBuilder.bind(queue).to(xExchange()).with("XA");
    }
    //声明队列B ttl为40s，并绑定到对应的死信交换机
    @Bean("queueB")
    public Queue queueB()
    {
        Map<String,Object> args=new HashMap<String, Object>(3);
        //声明当前队列绑定的死信交换机
        args.put("x-dead-letter-exchange", Y_DEAD_LETTER_EXCHANGE);
        //声明当前队列的死信路由key
        args.put("x-dead-letter-routing-key", "YD");
        //声明队列的TTL
        args.put("x-message-ttl", 40000);
        return QueueBuilder.durable(QUEUE_B).withArguments(args).build();
    }
    //声明队列B绑定X交换机
    @Bean
    public Binding queueBBindingX(@Qualifier("queueB") Queue queueB,
                                  @Qualifier("xExchange") DirectExchange xExchange){
        return BindingBuilder.bind(queueB).to(xExchange).with("XB");
    }
    //声明死信队列QD
    @Bean("queueD")
    public Queue queueD()
    {
        return new Queue(DEAD_LETTER_QUEUE);
    }
    //声明死信队列QD绑定关系
    @Bean
    public Binding deadLetterBindingQAD(@Qualifier("queueD") Queue queue,
                                        @Qualifier("YExchange") DirectExchange exchange)
    {
        return BindingBuilder.bind(queue).to(exchange).with("YD");
    }
}

生产者 

代码语言：javascript复制

@Slf4j
@RequestMapping("ttl")
@RestController
public class Produce01 {
    @Autowired
    private RabbitTemplate rabbitTemplate;
    @GetMapping("sendMsg/{message}")
    public void sendMsg(@PathVariable String message)
    {

        log.info("当前时间：{},发送一条消息给俩个TTL队列：{}", new Date(),message);
        rabbitTemplate.convertAndSend("X","XA","消息来于10s" message);
        rabbitTemplate.convertAndSend("X","XB","消息来于40s" message);
    }
}

监听 

代码语言：javascript复制

@Slf4j
@Component
public class Consumer {
    @RabbitListener(queues = "QD")
    public void receiveD(Message message, Channel channel)
    {
        System.out.println("*****************************");
        String s = new String(message.getBody());
        log.info("当前时间{}，死信队列接收到消息---->{}",new Date(),s);
        System.out.println("*****************************");
    }
}

swagg类 （这个玩意我不知道拿来干啥的）

代码语言：javascript复制

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean  public Docket webApiConfig(){
        return new Docket(DocumentationType.SWAGGER_2)  .
                groupName("webApi")  .apiInfo(webApiInfo())
                .select()
            .build();
    }
    private ApiInfo webApiInfo(){   return new ApiInfoBuilder()  .title("rabbitmq接口文档")  .description("本文档描述了rabbitmq微服务接口定义")  .version("1.0")  .
            contact(new Contact
            ("enjoy6288", "http://atguigu.com",
            "1551388580@qq.com"))  .build();  } }

浏览器输入 

 结果：

xml 队列 交换机 浏览器 配置

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