feat(mq): 实现评论发布消息消费功能

- 新增 Comment2DBConsumer 消费者类，用于处理评论发布消息- 配置 RocketMQ 消费者，订阅 PublishCommentTopic 主题
- 实现消息监听逻辑，支持批量消费和手动确认机制
- 添加令牌桶限流控制，限制每秒处理消息数量
- 集成 Spring Boot 生命周期管理，确保消费者优雅关闭
- 新增 MQ 测试类 MQTests，验证消息发送与消费流程
- 引入 rocketmq-client 依赖以支持 RocketMQ 功能

han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/consumer/Comment2DBConsumer.java

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+package com.hanserwei.hannote.comment.biz.consumer;
+
+import com.google.common.util.concurrent.RateLimiter;
+import com.hanserwei.hannote.comment.biz.constants.MQConstants;
+import jakarta.annotation.PreDestroy;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
+import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
+import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
+import org.apache.rocketmq.client.exception.MQClientException;
+import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
+import org.apache.rocketmq.common.message.MessageExt;
+import org.apache.rocketmq.remoting.protocol.heartbeat.MessageModel;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.stereotype.Component;
+
+import java.util.Objects;
+
+@SuppressWarnings("UnstableApiUsage")
+@Component
+@Slf4j
+public class Comment2DBConsumer {
+
+    @Value("${rocketmq.name-server}")
+    private String nameServer;
+
+    private DefaultMQPushConsumer consumer;
+
+    // 每秒创建 1000 个令牌
+    private final RateLimiter rateLimiter = RateLimiter.create(1000);
+
+    @Bean
+    public DefaultMQPushConsumer mqPushConsumer() throws MQClientException {
+        // Group组
+        String group = "han_note_group_" + MQConstants.TOPIC_PUBLISH_COMMENT;
+
+        // 创建一个新的DefaultMQPushConsumer示例并指定消费者的消费组名
+        consumer = new DefaultMQPushConsumer(group);
+
+        // 设置NameServer地址
+        consumer.setNamesrvAddr(nameServer);
+
+        // 订阅指定的主题，并设置主题的订阅规则（"*" 表示订阅所有标签的消息）
+        consumer.subscribe(MQConstants.TOPIC_PUBLISH_COMMENT, "*");
+
+        // 设置消费者消费消息的起始位置，如果队列中没有消息，则从最新的消息开始消费。
+        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_LAST_OFFSET);
+
+        // 设置消息消费模式，这里使用集群模式 (CLUSTERING)
+        consumer.setMessageModel(MessageModel.CLUSTERING);
+
+        // 设置每批次消费的最大消息数量，这里设置为 30，表示每次拉取时最多消费 30 条消息
+        consumer.setConsumeMessageBatchMaxSize(30);
+
+        // 注册消息监听器
+        consumer.registerMessageListener((MessageListenerConcurrently) (msgs, context) -> {
+            log.info("==> 本批次消息大小: {}", msgs.size());
+            try {
+                // 令牌桶流控
+                rateLimiter.acquire();
+
+                for (MessageExt msg : msgs) {
+                    String message = new String(msg.getBody());
+                    log.info("==> Consumer - Received message: {}", message);
+
+                    // TODO: 业务处理
+                }
+
+                // 手动 ACK，告诉 RocketMQ 这批次消息消费成功
+                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
+            } catch (Exception e) {
+                log.error("", e);
+                // 手动 ACK，告诉 RocketMQ 这批次消息处理失败，稍后再进行重试
+                return ConsumeConcurrentlyStatus.RECONSUME_LATER;
+            }
+        });
+
+        // 启动消费者
+        consumer.start();
+        return consumer;
+    }
+
+    @PreDestroy
+    public void destroy() {
+        if (Objects.nonNull(consumer)) {
+            try {
+                consumer.shutdown();  // 关闭消费者
+            } catch (Exception e) {
+                log.error("", e);
+            }
+        }
+    }
+}

han-note-comment/han-note-comment-biz/src/test/java/com/hanserwei/hannote/comment/biz/MQTests.java

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+package com.hanserwei.hannote.comment.biz;
+
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.rocketmq.client.producer.SendCallback;
+import org.apache.rocketmq.client.producer.SendResult;
+import org.apache.rocketmq.spring.core.RocketMQTemplate;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
+
+@SpringBootTest
+@Slf4j
+class MQTests {
+
+    @Resource
+    private RocketMQTemplate rocketMQTemplate;
+
+    /**
+     * 测试：模拟发送评论发布消息
+     */
+    @Test
+    void testBatchSendMQ() {
+        for (long i = 0; i < 1620; i++) {
+
+            // 构建消息对象
+            Message<String> message = MessageBuilder.withPayload("消息体数据")
+                    .build();
+
+            // 异步发送 MQ 消息
+            rocketMQTemplate.asyncSend("PublishCommentTopic", message, new SendCallback() {
+                @Override
+                public void onSuccess(SendResult sendResult) {
+                    log.info("==> 【评论发布】MQ 发送成功，SendResult: {}", sendResult);
+                }
+
+                @Override
+                public void onException(Throwable throwable) {
+                    log.error("==> 【评论发布】MQ 发送异常: ", throwable);
+                }
+            });
+        }
+    }
+
+}