diff --git a/.gitignore b/.gitignore
index eb59f65..1912859 100755
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,4 @@ build/
 /han-note-kv/han-note-kv-biz/logs/
 /han-note-note/han-note-note-biz/src/main/resources/application-dev.yml
 /han-note-user-relation/han-note-user-relation-biz/src/main/resources/application-dev.yml
+/han-note-user-relation/han-note-user-relation-biz/logs/
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index 94be324..a7edb6a 100755
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -1,6 +1,11 @@
 <component name="InspectionProjectProfileManager">
   <profile version="1.0">
     <option name="myName" value="Project Default" />
+    <inspection_tool class="DuplicatedCode" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <Languages>
+        <language minSize="56" name="Java" />
+      </Languages>
+    </inspection_tool>
     <inspection_tool class="IncorrectHttpHeaderInspection" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="customHeaders">
         <set>
diff --git a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/controller/NoteController.java b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/controller/NoteController.java
index 26741df..a59dd87 100644
--- a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/controller/NoteController.java
+++ b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/controller/NoteController.java
@@ -38,6 +38,12 @@ public class NoteController {
         return noteService.updateNote(updateNoteReqVO);
     }
 
+    @PostMapping(value = "/delete")
+    @ApiOperationLog(description = "笔记删除")
+    public Response<?> deleteNote(@Validated @RequestBody DeleteNoteReqVO deleteNoteReqVO) {
+        return noteService.deleteNote(deleteNoteReqVO);
+    }
+
     @PostMapping(value = "/visible/onlyme")
     @ApiOperationLog(description = "笔记仅对自己可见")
     public Response<?> visibleOnlyMe(@Validated @RequestBody UpdateNoteVisibleOnlyMeReqVO updateNoteVisibleOnlyMeReqVO) {
diff --git a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/model/vo/DeleteNoteReqVO.java b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/model/vo/DeleteNoteReqVO.java
new file mode 100644
index 0000000..c020805
--- /dev/null
+++ b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/model/vo/DeleteNoteReqVO.java
@@ -0,0 +1,17 @@
+package com.hanserwei.hannote.note.biz.model.vo;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Builder
+public class DeleteNoteReqVO {
+
+    @NotNull(message = "笔记 ID 不能为空")
+    private Long id;
+}
diff --git a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/NoteService.java b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/NoteService.java
index 519301a..5add426 100644
--- a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/NoteService.java
+++ b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/NoteService.java
@@ -28,6 +28,13 @@ public interface NoteService extends IService<NoteDO> {
      */
     Response<?> updateNote(UpdateNoteReqVO updateNoteReqVO);
 
+    /**
+     * 笔记删除
+     * @param deleteNoteReqVO 笔记删除请求
+     * @return 笔记删除结果
+     */
+    Response<?> deleteNote(DeleteNoteReqVO deleteNoteReqVO);
+
     /**
      * 笔记仅对自己可见
      * @param updateNoteVisibleOnlyMeReqVO 笔记仅对自己可见请求
diff --git a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/impl/NoteServiceImpl.java b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/impl/NoteServiceImpl.java
index c6bdac1..1cbfd22 100644
--- a/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/impl/NoteServiceImpl.java
+++ b/han-note-note/han-note-note-biz/src/main/java/com/hanserwei/hannote/note/biz/service/impl/NoteServiceImpl.java
@@ -334,6 +334,20 @@ public class NoteServiceImpl extends ServiceImpl<NoteDOMapper, NoteDO> implement
             }
         }
 
+        // 当前登录用户 ID
+        Long currUserId = LoginUserContextHolder.getUserId();
+        NoteDO selectNoteDO = this.getById(noteId);
+
+        // 笔记不存在
+        if (Objects.isNull(selectNoteDO)) {
+            throw new ApiException(ResponseCodeEnum.NOTE_NOT_FOUND);
+        }
+
+        // 判断权限：非笔记发布者不允许更新笔记
+        if (!Objects.equals(currUserId, selectNoteDO.getCreatorId())) {
+            throw new ApiException(ResponseCodeEnum.NOTE_CANT_OPERATE);
+        }
+
         // 话题
         Long topicId = updateNoteReqVO.getTopicId();
         String topicName = null;
@@ -428,11 +442,68 @@ public class NoteServiceImpl extends ServiceImpl<NoteDOMapper, NoteDO> implement
         return Response.success();
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Response<?> deleteNote(DeleteNoteReqVO deleteNoteReqVO) {
+        // 笔记 ID
+        Long noteId = deleteNoteReqVO.getId();
+
+        NoteDO selectNoteDO = this.getById(noteId);
+
+        // 判断笔记是否存在
+        if (Objects.isNull(selectNoteDO)) {
+            throw new ApiException(ResponseCodeEnum.NOTE_NOT_FOUND);
+        }
+
+        // 判断权限：非笔记发布者不允许删除笔记
+        Long currUserId = LoginUserContextHolder.getUserId();
+        if (!Objects.equals(currUserId, selectNoteDO.getCreatorId())) {
+            throw new ApiException(ResponseCodeEnum.NOTE_CANT_OPERATE);
+        }
+
+        // 逻辑删除
+        NoteDO noteDO = NoteDO.builder()
+                .id(noteId)
+                .status(NoteStatusEnum.DELETED.getCode())
+                .updateTime(LocalDateTime.now())
+                .build();
+
+        boolean updateSuccess = this.updateById(noteDO);
+
+        // 若失败，则表示该笔记不存在
+        if (!updateSuccess) {
+            throw new ApiException(ResponseCodeEnum.NOTE_NOT_FOUND);
+        }
+
+        // 删除缓存
+        String noteDetailRedisKey = RedisKeyConstants.buildNoteDetailKey(noteId);
+        redisTemplate.delete(noteDetailRedisKey);
+
+        // 同步发送广播模式 MQ，将所有实例中的本地缓存都删除掉
+        rocketMQTemplate.syncSend(MQConstants.TOPIC_DELETE_NOTE_LOCAL_CACHE, noteId);
+        log.info("====> MQ：删除笔记，删除本地缓存发送成功...");
+
+        return Response.success();
+    }
+
     @Override
     public Response<?> visibleOnlyMe(UpdateNoteVisibleOnlyMeReqVO updateNoteVisibleOnlyMeReqVO) {
         // 笔记 ID
         Long noteId = updateNoteVisibleOnlyMeReqVO.getId();
 
+        NoteDO selectNoteDO = this.getById(noteId);
+
+        // 判断笔记是否存在
+        if (Objects.isNull(selectNoteDO)) {
+            throw new ApiException(ResponseCodeEnum.NOTE_NOT_FOUND);
+        }
+
+        // 判断权限：非笔记发布者不允许修改笔记权限
+        Long currUserId = LoginUserContextHolder.getUserId();
+        if (!Objects.equals(currUserId, selectNoteDO.getCreatorId())) {
+            throw new ApiException(ResponseCodeEnum.NOTE_CANT_OPERATE);
+        }
+
         // 构建更新的实体类
         NoteDO noteDO = NoteDO.builder()
                 .id(noteId)
diff --git a/han-note-user-relation/han-note-user-relation-biz/pom.xml b/han-note-user-relation/han-note-user-relation-biz/pom.xml
index 698d9f5..41545a6 100644
--- a/han-note-user-relation/han-note-user-relation-biz/pom.xml
+++ b/han-note-user-relation/han-note-user-relation-biz/pom.xml
@@ -102,6 +102,12 @@
             <artifactId>rocketmq-spring-boot-starter</artifactId>
         </dependency>
 
+        <!-- NaCos 配置中心 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+
     </dependencies>
     <build>
         <plugins>
diff --git a/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/config/FollowUnfollowMqConsumerRateLimitConfig.java b/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/config/FollowUnfollowMqConsumerRateLimitConfig.java
new file mode 100644
index 0000000..78ba2c6
--- /dev/null
+++ b/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/config/FollowUnfollowMqConsumerRateLimitConfig.java
@@ -0,0 +1,21 @@
+package com.hanserwei.hannote.user.relation.biz.config;
+
+import com.google.common.util.concurrent.RateLimiter;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@RefreshScope
+public class FollowUnfollowMqConsumerRateLimitConfig {
+
+    @Value("${mq-consumer.follow-unfollow.rate-limit}")
+    private double rateLimit;
+
+    @Bean
+    @RefreshScope
+    public RateLimiter rateLimiter() {
+        return RateLimiter.create(rateLimit);
+    }
+}
\ No newline at end of file
diff --git a/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/consumer/FollowUnfollowConsumer.java b/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/consumer/FollowUnfollowConsumer.java
index 5e6e052..211e961 100644
--- a/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/consumer/FollowUnfollowConsumer.java
+++ b/han-note-user-relation/han-note-user-relation-biz/src/main/java/com/hanserwei/hannote/user/relation/biz/consumer/FollowUnfollowConsumer.java
@@ -1,5 +1,6 @@
 package com.hanserwei.hannote.user.relation.biz.consumer;
 
+import com.google.common.util.concurrent.RateLimiter;
 import com.hanserwei.framework.common.utils.JsonUtils;
 import com.hanserwei.hannote.user.relation.biz.constant.MQConstants;
 import com.hanserwei.hannote.user.relation.biz.domain.dataobject.FansDO;
@@ -7,6 +8,8 @@ import com.hanserwei.hannote.user.relation.biz.domain.dataobject.FollowingDO;
 import com.hanserwei.hannote.user.relation.biz.model.dto.FollowUserMqDTO;
 import com.hanserwei.hannote.user.relation.biz.service.FansDOService;
 import com.hanserwei.hannote.user.relation.biz.service.FollowingDOService;
+import jakarta.annotation.Resource;
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.rocketmq.common.message.Message;
 import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
@@ -23,19 +26,19 @@ import java.util.Objects;
         topic = MQConstants.TOPIC_FOLLOW_OR_UNFOLLOW
 )
 @Slf4j
+@RequiredArgsConstructor
 public class FollowUnfollowConsumer implements RocketMQListener<Message> {
     private final TransactionTemplate transactionTemplate;
     private final FollowingDOService followingDOService;
     private final FansDOService fansDOService;
 
-    public FollowUnfollowConsumer(TransactionTemplate transactionTemplate, FollowingDOService followingDOService, FansDOService fansDOService) {
-        this.transactionTemplate = transactionTemplate;
-        this.followingDOService = followingDOService;
-        this.fansDOService = fansDOService;
-    }
+    @Resource
+    private RateLimiter rateLimiter;
 
     @Override
     public void onMessage(Message message) {
+        // 流量削峰：通过获取令牌，如果没有令牌可用，将阻塞，直到获得
+        rateLimiter.acquire();
         // 消息体
         String bodyJsonStr = new String(message.getBody());
         // 标签
diff --git a/han-note-user-relation/han-note-user-relation-biz/src/main/resources/application.yml b/han-note-user-relation/han-note-user-relation-biz/src/main/resources/application.yml
index 65a3924..ea8036d 100644
--- a/han-note-user-relation/han-note-user-relation-biz/src/main/resources/application.yml
+++ b/han-note-user-relation/han-note-user-relation-biz/src/main/resources/application.yml
@@ -28,4 +28,7 @@ mybatis-plus:
     log-impl: org.apache.ibatis.logging.slf4j.Slf4jImpl
   global-config:
     banner: false
-  mapper-locations: classpath*:/mapperxml/*.xml
\ No newline at end of file
+  mapper-locations: classpath*:/mapperxml/*.xml
+mq-consumer: # MQ 消费者
+  follow-unfollow: # 关注、取关
+    rate-limit: 5000 # 每秒限流阈值
\ No newline at end of file
diff --git a/han-note-user-relation/han-note-user-relation-biz/src/main/resources/bootstrap.yml b/han-note-user-relation/han-note-user-relation-biz/src/main/resources/bootstrap.yml
index a0718f0..e74eaf0 100644
--- a/han-note-user-relation/han-note-user-relation-biz/src/main/resources/bootstrap.yml
+++ b/han-note-user-relation/han-note-user-relation-biz/src/main/resources/bootstrap.yml
@@ -10,3 +10,10 @@ spring:
         group: DEFAULT_GROUP # 所属组
         namespace: han-note # 命名空间
         server-addr: 127.0.0.1:8848 # 指定 Nacos 配置中心的服务器地址
+      config:
+        server-addr: http://127.0.0.1:8848 # 指定 Nacos 配置中心的服务器地址
+        prefix: ${spring.application.name} # 配置 Data Id 前缀，这里使用应用名称作为前缀
+        group: DEFAULT_GROUP # 所属组
+        namespace: han-note # 命名空间
+        file-extension: yaml # 配置文件格式
+        refresh-enabled: true # 是否开启动态刷新
\ No newline at end of file
diff --git a/han-note-user-relation/han-note-user-relation-biz/src/test/java/com/hanserwei/hannote/user/relation/biz/MQTests.java b/han-note-user-relation/han-note-user-relation-biz/src/test/java/com/hanserwei/hannote/user/relation/biz/MQTests.java
new file mode 100644
index 0000000..e9f3d0b
--- /dev/null
+++ b/han-note-user-relation/han-note-user-relation-biz/src/test/java/com/hanserwei/hannote/user/relation/biz/MQTests.java
@@ -0,0 +1,62 @@
+package com.hanserwei.hannote.user.relation.biz;
+
+import com.hanserwei.framework.common.utils.JsonUtils;
+import com.hanserwei.hannote.user.relation.biz.constant.MQConstants;
+import com.hanserwei.hannote.user.relation.biz.model.dto.FollowUserMqDTO;
+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;
+
+import java.time.LocalDateTime;
+
+@SpringBootTest
+@Slf4j
+class MQTests {
+
+    @Resource
+    private RocketMQTemplate rocketMQTemplate;
+
+    /**
+     * 测试：发送一万条 MQ
+     */
+    @Test
+    void testBatchSendMQ() {
+        for (long i = 0; i < 10000; i++) {
+            // 构建消息体 DTO
+            FollowUserMqDTO followUserMqDTO = FollowUserMqDTO.builder()
+                    .userId(i)
+                    .followUserId(i)
+                    .createTime(LocalDateTime.now())
+                    .build();
+
+            // 构建消息对象，并将 DTO 转成 Json 字符串设置到消息体中
+            Message<String> message = MessageBuilder.withPayload(JsonUtils.toJsonString(followUserMqDTO))
+                    .build();
+
+            // 通过冒号连接, 可让 MQ 发送给主题 Topic 时，携带上标签 Tag
+            String destination = MQConstants.TOPIC_FOLLOW_OR_UNFOLLOW + ":" + MQConstants.TAG_FOLLOW;
+
+            log.info("==> 开始发送关注操作 MQ, 消息体: {}", followUserMqDTO);
+
+            // 异步发送 MQ 消息，提升接口响应速度
+            rocketMQTemplate.asyncSend(destination, message, new SendCallback() {
+                @Override
+                public void onSuccess(SendResult sendResult) {
+                    log.info("==> MQ 发送成功，SendResult: {}", sendResult);
+                }
+
+                @Override
+                public void onException(Throwable throwable) {
+                    log.error("==> MQ 发送异常: ", throwable);
+                }
+            });
+        }
+    }
+
+}
\ No newline at end of file