本文使用的版本
- otp_win64_25.0
- rabbitmq-server-3.11.26
- rabbitmq插件 rabbitmq_delayed_message_exchange-3.11.1
pom.xml文件
xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.11.0</version>
</dependency>
OrderTimeOutCancelConfig.java
java
@Configuration
@Data
public class OrderTimeOutCancelConfig {
/**
* 正常订单队列,此队列不要绑定消费者,否自无法进入死信队列
*/
@Bean
public Queue orderQueue() {
Map<String, Object> arguments = new HashMap<>();
arguments.put("x-message-ttl", 10000);//超时关闭时间10s
arguments.put("x-dead-letter-exchange", RabbitConstants.ORDER_DLX_EXCHANGE);
arguments.put("x-dead-letter-routing-key", RabbitConstants.ORDER_DLX_ROUTING_KEY);
Queue queue = new Queue(RabbitConstants.ORDER_QUEUE, true, false, false, arguments);
return queue;
}
/**
* 自定义交换机
*/
@Bean
public CustomExchange orderExchange() {
Map<String, Object> arguments = new HashMap<>();
arguments.put("x-delayed-type", ExchangeTypes.TOPIC);
return new CustomExchange(RabbitConstants.ORDER_EXCHANGE, "x-delayed-message", true, false, arguments);
}
/**
* 绑定交换机和队列
*/
@Bean
public Binding orderRouting() {
return BindingBuilder
.bind(orderQueue())
.to(orderExchange())
.with(RabbitConstants.ORDER_ROUTING_KEY)
.noargs();
}
/**
* 订单死信队列
* @return {@link Queue}
*/
@Bean
public Queue orderDlxQueue() {
Queue queue = new Queue(RabbitConstants.ORDER_DLX_QUEUE, true, false, false);
return queue;
}
/**
* 死信交换机
*/
@Bean
public Exchange orderDlxExchange() {
return new DirectExchange(RabbitConstants.ORDER_DLX_EXCHANGE, true, false, null);
}
/**
* 绑定
*/
@Bean
public Binding orderDlxRouting() {
return BindingBuilder
.bind(orderDlxQueue())
.to(orderDlxExchange())
.with(RabbitConstants.ORDER_DLX_ROUTING_KEY)
.noargs();
}
}
java
@Component
@Slf4j
public class OrderCancelHandler {
/**
* 监听订单死信队列,关闭订单
*/
@RabbitListener(queues = RabbitConstants.ORDER_DLX_QUEUE, ackMode = "MANUAL")
public void onMessage(Message message, Channel channel) throws IOException {
log.info("消息进入死信队列...");
String thdTransFlow = new String(message.getBody());
log.info(thdTransFlow + "订单取消");
// 手动ack
channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
}
}
OrderService.java
@Resource
java
private AmqpTemplate amqpTemplate;
public R purchase(){
//其它业务处理
//放入队列
try {
amqpTemplate.convertAndSend(RabbitConstants.ORDER_EXCHANGE, RabbitConstants.ORDER_ROUTING_KEY, thdTransFlow.getBytes()); //使用上面默认时间
// 放入死信队列 需要指定其它过期时间时,根据需求二选一即可
//Integer delayTime = 10 * 1000;
//amqpTemplate.convertAndSend(RabbitConstants.ORDER_EXCHANGE, RabbitConstants.ORDER_ROUTING_KEY, thdTransFlow, message -> {
//message.getMessageProperties().setDelay(delayTime);
//return message;
//});
} catch (AmqpException e) {
log.error("放入取消队列出现异常{}",e.getMessage());
//throw new RuntimeException(e);
}
//其它业务处理
}