springboot整合rabbitMQ 死信队列（基本）
【摘要】 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编辑 pom.xml文件<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xs...
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
<?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
spring.rabbitmq.host=192.168.231.135
spring.rabbitmq.port=5672
spring.rabbitmq.username=admin
spring.rabbitmq.password=123配置类
@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
@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
@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）
@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(); } }
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