103 lines
4.0 KiB
Java
103 lines
4.0 KiB
Java
package com.yunhai.userbase.config;
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import org.springframework.amqp.core.*;
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import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
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import org.springframework.amqp.rabbit.connection.ConnectionFactory;
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import org.springframework.amqp.rabbit.core.RabbitTemplate;
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import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
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import org.springframework.amqp.support.converter.MessageConverter;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import com.yunhai.userbase.model.push.PushTaskMessage;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 推送订阅 MQ 配置。<br><br>
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* 拓扑：
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* <pre>
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* push.topic (topic, durable)
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* └─ push.main (durable, concurrency=1, x-dead-letter-exchange=push.dlx) ← 串行消费，可观测
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* push.dlx (fanout, durable)
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* └─ push.dlq (durable) ← 死信归档（重试耗尽）
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* </pre>
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* 连接信息（host/port/user/pwd/vhost）由 Nacos {@code application-infra.yaml} 的 {@code spring.rabbitmq.*}
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* 公共配置注入，本类不写死（也不改 bootstrap.yml / application.yml）。<br>
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* 可靠性：消费端手动 ack，失败由 {@code PushConsumer} 应用层自管重试（共 3 次），耗尽进死信队列。
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*
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* @author chenx
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* @date 2026/8/14
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*/
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@Configuration
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public class PushMqConfig {
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public static final String EXCHANGE_TOPIC = "push.topic";
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public static final String EXCHANGE_DLX = "push.dlx";
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public static final String QUEUE_MAIN = "push.main";
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public static final String QUEUE_DLQ = "push.dlq";
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/** 统一 JSON 消息转换器（固定反序列化为 PushTaskMessage，绕过 trusted-packages 版本差异）。 */
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@Bean
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public MessageConverter pushMessageConverter() {
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Jackson2JsonMessageConverter converter = new Jackson2JsonMessageConverter();
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converter.setClassMapper(new PushTaskClassMapper(PushTaskMessage.class));
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return converter;
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}
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@Bean
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public TopicExchange pushTopicExchange() {
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return new TopicExchange(EXCHANGE_TOPIC, true, false);
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}
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@Bean
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public FanoutExchange pushDlxExchange() {
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return new FanoutExchange(EXCHANGE_DLX, true, false);
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}
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/** 主队列：单消费者串行 + 死信路由到 push.dlx。 */
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@Bean
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public Queue pushMainQueue() {
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Map<String, Object> args = new HashMap<>();
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args.put("x-dead-letter-exchange", EXCHANGE_DLX);
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return new Queue(QUEUE_MAIN, true, false, false, args);
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}
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/** 死信队列：归档重试耗尽的任务。 */
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@Bean
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public Queue pushDlqQueue() {
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return new Queue(QUEUE_DLQ, true, false, false);
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}
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@Bean
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public Binding pushMainBinding() {
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return BindingBuilder.bind(pushMainQueue()).to(pushTopicExchange()).with("#");
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}
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@Bean
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public Binding pushDlqBinding() {
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return BindingBuilder.bind(pushDlqQueue()).to(pushDlxExchange());
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}
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@Bean
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public RabbitTemplate pushRabbitTemplate(ConnectionFactory connectionFactory) {
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RabbitTemplate template = new RabbitTemplate(connectionFactory);
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template.setMessageConverter(pushMessageConverter());
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return template;
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}
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/** 消费者容器：手动 ack + 单并发 + prefetch=1，保证串行可观测。 */
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@Bean(name = "pushListenerContainerFactory")
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public SimpleRabbitListenerContainerFactory pushListenerContainerFactory(ConnectionFactory connectionFactory) {
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SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
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factory.setConnectionFactory(connectionFactory);
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factory.setMessageConverter(pushMessageConverter());
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factory.setAcknowledgeMode(org.springframework.amqp.core.AcknowledgeMode.MANUAL);
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factory.setConcurrentConsumers(1);
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factory.setMaxConcurrentConsumers(1);
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factory.setPrefetchCount(1);
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return factory;
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}
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}
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