From 449f5418b2e372555b6dae6fa673f920756fdf34 Mon Sep 17 00:00:00 2001
From: Toyas <toyasovo@gmail.com>
Date: Thu, 10 Apr 2025 02:02:02 +0800
Subject: [PATCH] feat(comment): Implement comment module foundation

---
 .idea/.cache/.Apifox_Helper/.toolWindow.db    | Bin 262144 -> 294912 bytes
 .idea/ApifoxUploaderProjectSetting.xml        |   6 +-
 video-comment/pom.xml                         | 106 +++++
 .../video/comment/CommentApplication.java     |   7 +
 .../video/comment/config/SecurityConfig.java  |  41 ++
 .../comment/controller/CommentController.java | 141 +++++++
 .../comment/controller/ReplyController.java   | 110 +++++
 .../nuaa/video/comment/dto/CommentAddDTO.java |  29 ++
 .../video/comment/dto/CommentQueryDTO.java    |  43 ++
 .../nuaa/video/comment/dto/ReplyAddDTO.java   |  40 ++
 .../nuaa/video/comment/entity/Comment.java    |  98 +++++
 .../video/comment/entity/CommentLike.java     |  44 ++
 .../video/comment/entity/CommentReply.java    | 110 +++++
 .../comment/feign/ContentFeignClient.java     |  37 ++
 .../ContentFeignClientFallbackFactory.java    |  32 ++
 .../video/comment/feign/UserFeignClient.java  |  39 ++
 .../feign/UserFeignClientFallbackFactory.java |  32 ++
 .../filter/JwtAuthenticationFilter.java       | 102 +++++
 .../comment/mapper/CommentLikeMapper.java     |  31 ++
 .../video/comment/mapper/CommentMapper.java   |  50 +++
 .../comment/mapper/CommentReplyMapper.java    |  51 +++
 .../comment/service/CommentReplyService.java  |  73 ++++
 .../video/comment/service/CommentService.java |  98 +++++
 .../service/impl/CommentReplyServiceImpl.java | 281 +++++++++++++
 .../service/impl/CommentServiceImpl.java      | 396 ++++++++++++++++++
 .../comment/utils/SensitiveWordFilter.java    | 215 ++++++++++
 .../nuaa/video/comment/vo/CommentStatVO.java  |  33 ++
 .../com/nuaa/video/comment/vo/CommentVO.java  |  75 ++++
 .../com/nuaa/video/comment/vo/ReplyVO.java    |  79 ++++
 .../src/main/resources/application-dev.yml    |  25 ++
 .../src/main/resources/application.yml        | 101 ++++-
 .../resources/mapper/CommentLikeMapper.xml    |  22 +
 .../main/resources/mapper/CommentMapper.xml   |  52 +++
 .../resources/mapper/CommentReplyMapper.xml   |  38 ++
 34 files changed, 2624 insertions(+), 13 deletions(-)
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/config/SecurityConfig.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/controller/CommentController.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/controller/ReplyController.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/dto/CommentAddDTO.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/dto/CommentQueryDTO.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/dto/ReplyAddDTO.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/entity/Comment.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/entity/CommentLike.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/entity/CommentReply.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClient.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClientFallbackFactory.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClient.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClientFallbackFactory.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/filter/JwtAuthenticationFilter.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentLikeMapper.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentMapper.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentReplyMapper.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/service/CommentReplyService.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/service/CommentService.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentReplyServiceImpl.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentServiceImpl.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/utils/SensitiveWordFilter.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/vo/CommentStatVO.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/vo/CommentVO.java
 create mode 100644 video-comment/src/main/java/com/nuaa/video/comment/vo/ReplyVO.java
 create mode 100644 video-comment/src/main/resources/application-dev.yml
 create mode 100644 video-comment/src/main/resources/mapper/CommentLikeMapper.xml
 create mode 100644 video-comment/src/main/resources/mapper/CommentMapper.xml
 create mode 100644 video-comment/src/main/resources/mapper/CommentReplyMapper.xml

diff --git a/.idea/.cache/.Apifox_Helper/.toolWindow.db b/.idea/.cache/.Apifox_Helper/.toolWindow.db
index 7b57fac4fcee7c5e50a403e23183ee98984fa1a8..fd168ed1de459bb1ca3f833f759f78d6dc8092c8 100644
GIT binary patch
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diff --git a/.idea/ApifoxUploaderProjectSetting.xml b/.idea/ApifoxUploaderProjectSetting.xml
index f7f3101..01b4d2b 100644
--- a/.idea/ApifoxUploaderProjectSetting.xml
+++ b/.idea/ApifoxUploaderProjectSetting.xml
@@ -7,9 +7,11 @@
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+        <option value="&lt;byte-array&gt;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&lt;/byte-array&gt;" />
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+    <option name="treeNodesJTree" 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&lt;/byte-array&gt;" />
   </component>
 </project>
\ No newline at end of file
diff --git a/video-comment/pom.xml b/video-comment/pom.xml
index 42f9011..25ad03e 100644
--- a/video-comment/pom.xml
+++ b/video-comment/pom.xml
@@ -12,10 +12,116 @@
     <artifactId>video-comment</artifactId>
 
     <dependencies>
+        <!-- 引入公共模块 -->
         <dependency>
             <groupId>com.nuaa.video</groupId>
             <artifactId>video-common</artifactId>
             <version>${project.version}</version>
         </dependency>
+
+        <!-- Spring Boot Web -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- Spring Security -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud Alibaba Nacos Discovery -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud Alibaba Nacos Config -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+
+        <!-- Spring Boot Actuator -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+
+        <!-- Spring Boot Validation -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud OpenFeign -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud LoadBalancer -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud Alibaba Sentinel -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
+        </dependency>
+
+        <!-- MySQL Connector -->
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- MyBatis Plus -->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
+            <version>3.5.11</version>
+        </dependency>
+
+        <!-- Redis -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+        </dependency>
+
+        <!-- Lombok -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+        <!-- Hutool工具包 -->
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+            <version>5.8.26</version>
+        </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                        </exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/CommentApplication.java b/video-comment/src/main/java/com/nuaa/video/comment/CommentApplication.java
index 2757cf2..1a9e319 100644
--- a/video-comment/src/main/java/com/nuaa/video/comment/CommentApplication.java
+++ b/video-comment/src/main/java/com/nuaa/video/comment/CommentApplication.java
@@ -1,11 +1,18 @@
 package com.nuaa.video.comment;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 
+/**
+ * 评论服务启动类
+ */
 @SpringBootApplication
 @EnableDiscoveryClient
+@EnableFeignClients
+@MapperScan("com.nuaa.video.comment.mapper")
 public class CommentApplication {
     public static void main(String[] args) {
         SpringApplication.run(CommentApplication.class, args);
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/config/SecurityConfig.java b/video-comment/src/main/java/com/nuaa/video/comment/config/SecurityConfig.java
new file mode 100644
index 0000000..5176064
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/config/SecurityConfig.java
@@ -0,0 +1,41 @@
+package com.nuaa.video.comment.config;
+
+import com.nuaa.video.comment.filter.JwtAuthenticationFilter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+
+/**
+ * 安全配置类
+ */
+@Configuration
+@EnableWebSecurity
+@RequiredArgsConstructor
+public class SecurityConfig {
+
+    private final JwtAuthenticationFilter jwtAuthenticationFilter;
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http
+                .csrf(csrf -> csrf.disable())
+                .cors(cors -> cors.disable())
+                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
+                .authorizeHttpRequests(auth -> auth
+                        .requestMatchers(
+                                "/comment/public/**",
+                                "/actuator/**",
+                                "/error"
+                        ).permitAll()
+                        .anyRequest().authenticated()
+                )
+                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
+
+        return http.build();
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/controller/CommentController.java b/video-comment/src/main/java/com/nuaa/video/comment/controller/CommentController.java
new file mode 100644
index 0000000..1884ddb
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/controller/CommentController.java
@@ -0,0 +1,141 @@
+package com.nuaa.video.comment.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.nuaa.video.comment.dto.CommentAddDTO;
+import com.nuaa.video.comment.dto.CommentQueryDTO;
+import com.nuaa.video.comment.service.CommentService;
+import com.nuaa.video.comment.vo.CommentStatVO;
+import com.nuaa.video.comment.vo.CommentVO;
+import com.nuaa.video.common.model.vo.Result;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.*;
+
+/**
+ * 评论控制器
+ */
+@Slf4j
+@RestController
+@RequestMapping("/comment")
+@RequiredArgsConstructor
+public class CommentController {
+
+    private final CommentService commentService;
+
+    /**
+     * 添加评论
+     */
+    @PostMapping
+    public Result<Long> addComment(@RequestBody @Valid CommentAddDTO commentDTO, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.addComment(commentDTO, userId);
+    }
+
+    /**
+     * 获取评论列表(公开接口)
+     */
+    @GetMapping("/public/list")
+    public Result<Page<CommentVO>> getCommentList(CommentQueryDTO queryDTO, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        return commentService.getCommentList(queryDTO, userId);
+    }
+
+    /**
+     * 获取评论详情(公开接口)
+     */
+    @GetMapping("/public/detail/{id}")
+    public Result<CommentVO> getCommentDetail(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        return commentService.getCommentDetail(id, userId);
+    }
+
+    /**
+     * 删除评论
+     */
+    @DeleteMapping("/{id}")
+    public Result<Void> deleteComment(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.deleteComment(id, userId);
+    }
+
+    /**
+     * 点赞评论
+     */
+    @PostMapping("/like/{id}")
+    public Result<Void> likeComment(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.likeComment(id, userId);
+    }
+
+    /**
+     * 取消点赞评论
+     */
+    @DeleteMapping("/like/{id}")
+    public Result<Void> unlikeComment(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.unlikeComment(id, userId);
+    }
+
+    /**
+     * 置顶评论
+     */
+    @PostMapping("/top/{id}")
+    public Result<Void> topComment(
+            @PathVariable Long id,
+            @RequestParam Long videoId,
+            HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.topComment(id, userId, videoId);
+    }
+
+    /**
+     * 取消置顶评论
+     */
+    @DeleteMapping("/top/{id}")
+    public Result<Void> untopComment(
+            @PathVariable Long id,
+            @RequestParam Long videoId,
+            HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentService.untopComment(id, userId, videoId);
+    }
+
+    /**
+     * 获取评论统计信息(公开接口)
+     */
+    @GetMapping("/public/stat/{videoId}")
+    public Result<CommentStatVO> getCommentStat(@PathVariable Long videoId) {
+        return commentService.getCommentStat(videoId);
+    }
+
+    /**
+     * 从请求中获取用户ID
+     */
+    private Long getUserIdFromRequest(HttpServletRequest request) {
+        Object userIdObj = request.getAttribute("userId");
+        if (userIdObj instanceof Long) {
+            return (Long) userIdObj;
+        }
+        return null;
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/controller/ReplyController.java b/video-comment/src/main/java/com/nuaa/video/comment/controller/ReplyController.java
new file mode 100644
index 0000000..fd48c87
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/controller/ReplyController.java
@@ -0,0 +1,110 @@
+package com.nuaa.video.comment.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.nuaa.video.comment.dto.ReplyAddDTO;
+import com.nuaa.video.comment.service.CommentReplyService;
+import com.nuaa.video.comment.vo.ReplyVO;
+import com.nuaa.video.common.model.vo.Result;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 回复控制器
+ */
+@Slf4j
+@RestController
+@RequestMapping("/comment/reply")
+@RequiredArgsConstructor
+public class ReplyController {
+
+    private final CommentReplyService commentReplyService;
+
+    /**
+     * 添加回复
+     */
+    @PostMapping
+    public Result<Long> addReply(@RequestBody @Valid ReplyAddDTO replyDTO, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentReplyService.addReply(replyDTO, userId);
+    }
+
+    /**
+     * 获取评论的回复列表(公开接口)
+     */
+    @GetMapping("/public/list/{commentId}")
+    public Result<Page<ReplyVO>> getReplyList(
+            @PathVariable Long commentId,
+            @RequestParam(value = "page", defaultValue = "1") Integer page,
+            @RequestParam(value = "size", defaultValue = "10") Integer size,
+            HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        return commentReplyService.getReplyList(commentId, page, size, userId);
+    }
+
+    /**
+     * 获取评论的热门回复(公开接口)
+     */
+    @GetMapping("/public/hot/{commentId}")
+    public Result<List<ReplyVO>> getHotReplies(
+            @PathVariable Long commentId,
+            @RequestParam(value = "limit", defaultValue = "3") Integer limit,
+            HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        return commentReplyService.getHotReplies(commentId, limit, userId);
+    }
+
+    /**
+     * 删除回复
+     */
+    @DeleteMapping("/{id}")
+    public Result<Void> deleteReply(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentReplyService.deleteReply(id, userId);
+    }
+
+    /**
+     * 点赞回复
+     */
+    @PostMapping("/like/{id}")
+    public Result<Void> likeReply(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentReplyService.likeReply(id, userId);
+    }
+
+    /**
+     * 取消点赞回复
+     */
+    @DeleteMapping("/like/{id}")
+    public Result<Void> unlikeReply(@PathVariable Long id, HttpServletRequest request) {
+        Long userId = getUserIdFromRequest(request);
+        if (userId == null) {
+            return Result.error("未登录");
+        }
+        return commentReplyService.unlikeReply(id, userId);
+    }
+
+    /**
+     * 从请求中获取用户ID
+     */
+    private Long getUserIdFromRequest(HttpServletRequest request) {
+        Object userIdObj = request.getAttribute("userId");
+        if (userIdObj instanceof Long) {
+            return (Long) userIdObj;
+        }
+        return null;
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentAddDTO.java b/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentAddDTO.java
new file mode 100644
index 0000000..c11c11c
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentAddDTO.java
@@ -0,0 +1,29 @@
+package com.nuaa.video.comment.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 评论添加DTO
+ */
+@Data
+public class CommentAddDTO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 视频ID
+     */
+    @NotNull(message = "视频ID不能为空")
+    private Long videoId;
+
+    /**
+     * 评论内容
+     */
+    @NotBlank(message = "评论内容不能为空")
+    @Size(max = 500, message = "评论内容最多500字")
+    private String content;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentQueryDTO.java b/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentQueryDTO.java
new file mode 100644
index 0000000..d5f3a44
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/dto/CommentQueryDTO.java
@@ -0,0 +1,43 @@
+package com.nuaa.video.comment.dto;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 评论查询DTO
+ */
+@Data
+public class CommentQueryDTO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 排序字段
+     */
+    private String orderBy;
+
+    /**
+     * 排序方向
+     */
+    private String orderDirection;
+
+    /**
+     * 页码
+     */
+    private Integer pageNum = 1;
+
+    /**
+     * 每页条数
+     */
+    private Integer pageSize = 10;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/dto/ReplyAddDTO.java b/video-comment/src/main/java/com/nuaa/video/comment/dto/ReplyAddDTO.java
new file mode 100644
index 0000000..ce8670c
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/dto/ReplyAddDTO.java
@@ -0,0 +1,40 @@
+package com.nuaa.video.comment.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 回复添加DTO
+ */
+@Data
+public class ReplyAddDTO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 评论ID
+     */
+    @NotNull(message = "评论ID不能为空")
+    private Long commentId;
+
+    /**
+     * 视频ID
+     */
+    @NotNull(message = "视频ID不能为空")
+    private Long videoId;
+
+    /**
+     * 回复目标用户ID
+     */
+    private Long replyToId;
+
+    /**
+     * 回复内容
+     */
+    @NotBlank(message = "回复内容不能为空")
+    @Size(max = 500, message = "回复内容最多500字")
+    private String content;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/entity/Comment.java b/video-comment/src/main/java/com/nuaa/video/comment/entity/Comment.java
new file mode 100644
index 0000000..65befbf
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/entity/Comment.java
@@ -0,0 +1,98 @@
+package com.nuaa.video.comment.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 评论实体
+ */
+@Data
+@TableName("comment")
+public class Comment implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 评论ID
+     */
+    @TableId(value = "id", type = IdType.AUTO)
+    private Long id;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 评论内容
+     */
+    private String content;
+
+    /**
+     * 点赞数
+     */
+    private Integer likeCount;
+
+    /**
+     * 回复数
+     */
+    private Integer replyCount;
+
+    /**
+     * 置顶状态(0:普通,1:置顶)
+     */
+    private Integer topStatus;
+
+    /**
+     * 状态(0:删除,1:正常)
+     */
+    private Integer status;
+
+    /**
+     * 创建人
+     */
+    private String createdBy;
+
+    /**
+     * 更新人
+     */
+    private String updatedBy;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createTime;
+
+    /**
+     * 更新时间
+     */
+    private LocalDateTime updateTime;
+
+    /**
+     * 用户昵称(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String userNickname;
+
+    /**
+     * 用户头像(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String userAvatar;
+
+    /**
+     * 是否已点赞(非数据库字段)
+     */
+    @TableField(exist = false)
+    private Boolean isLiked;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentLike.java b/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentLike.java
new file mode 100644
index 0000000..a94cb86
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentLike.java
@@ -0,0 +1,44 @@
+package com.nuaa.video.comment.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 评论点赞实体
+ */
+@Data
+@TableName("comment_like")
+public class CommentLike implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 主键ID
+     */
+    @TableId(value = "id", type = IdType.AUTO)
+    private Long id;
+
+    /**
+     * 评论ID
+     */
+    private Long commentId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 类型(1:评论,2:回复)
+     */
+    private Integer type;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createTime;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentReply.java b/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentReply.java
new file mode 100644
index 0000000..d6b7795
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/entity/CommentReply.java
@@ -0,0 +1,110 @@
+package com.nuaa.video.comment.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 评论回复实体
+ */
+@Data
+@TableName("comment_reply")
+public class CommentReply implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 回复ID
+     */
+    @TableId(value = "id", type = IdType.AUTO)
+    private Long id;
+
+    /**
+     * 评论ID
+     */
+    private Long commentId;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 回复目标用户ID
+     */
+    private Long replyToId;
+
+    /**
+     * 回复内容
+     */
+    private String content;
+
+    /**
+     * 点赞数
+     */
+    private Integer likeCount;
+
+    /**
+     * 状态(0:删除,1:正常)
+     */
+    private Integer status;
+
+    /**
+     * 创建人
+     */
+    private String createdBy;
+
+    /**
+     * 更新人
+     */
+    private String updatedBy;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createTime;
+
+    /**
+     * 更新时间
+     */
+    private LocalDateTime updateTime;
+
+    /**
+     * 用户昵称(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String userNickname;
+
+    /**
+     * 用户头像(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String userAvatar;
+
+    /**
+     * 回复目标用户昵称(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String replyToNickname;
+
+    /**
+     * 回复目标用户头像(非数据库字段)
+     */
+    @TableField(exist = false)
+    private String replyToAvatar;
+
+    /**
+     * 是否已点赞(非数据库字段)
+     */
+    @TableField(exist = false)
+    private Boolean isLiked;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClient.java b/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClient.java
new file mode 100644
index 0000000..2a5b100
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClient.java
@@ -0,0 +1,37 @@
+package com.nuaa.video.comment.feign;
+
+import com.nuaa.video.common.model.vo.Result;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
+
+/**
+ * 内容服务Feign客户端
+ */
+@FeignClient(name = "video-content", fallbackFactory = ContentFeignClientFallbackFactory.class)
+public interface ContentFeignClient {
+
+    /**
+     * 获取视频信息
+     *
+     * @param id 视频ID
+     * @return 视频信息
+     */
+    @GetMapping("/content/video/{id}")
+    Result<Object> getVideoInfo(@PathVariable("id") Long id);
+
+    /**
+     * 增加视频评论数
+     *
+     * @param videoId 视频ID
+     * @param count 增加数量
+     * @param token 认证令牌
+     * @return 结果
+     */
+    @PostMapping("/content/video/count/comment/{videoId}/{count}")
+    Result<Void> increaseCommentCount(@PathVariable("videoId") Long videoId,
+                                      @PathVariable("count") Integer count,
+                                      @RequestHeader("Authorization") String token);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClientFallbackFactory.java b/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClientFallbackFactory.java
new file mode 100644
index 0000000..73de247
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/feign/ContentFeignClientFallbackFactory.java
@@ -0,0 +1,32 @@
+package com.nuaa.video.comment.feign;
+
+import com.nuaa.video.common.model.vo.Result;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cloud.openfeign.FallbackFactory;
+import org.springframework.stereotype.Component;
+
+/**
+ * 内容服务Feign客户端降级工厂
+ */
+@Slf4j
+@Component
+public class ContentFeignClientFallbackFactory implements FallbackFactory<ContentFeignClient> {
+
+    @Override
+    public ContentFeignClient create(Throwable cause) {
+        log.error("内容服务调用失败：", cause);
+        return new ContentFeignClient() {
+            @Override
+            public Result<Object> getVideoInfo(Long id) {
+                log.error("获取视频信息失败，视频ID：{}", id);
+                return Result.error("获取视频信息失败，请稍后重试");
+            }
+
+            @Override
+            public Result<Void> increaseCommentCount(Long videoId, Integer count, String token) {
+                log.error("增加视频评论数量失败，视频ID：{}, 数量：{}", videoId, count);
+                return Result.error("更新视频评论数量失败");
+            }
+        };
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClient.java b/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClient.java
new file mode 100644
index 0000000..67c5d6f
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClient.java
@@ -0,0 +1,39 @@
+package com.nuaa.video.comment.feign;
+
+import com.nuaa.video.common.model.vo.Result;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
+
+/**
+ * 用户服务Feign客户端
+ */
+@FeignClient(name = "video-user", fallbackFactory = UserFeignClientFallbackFactory.class)
+public interface UserFeignClient {
+
+    /**
+     * 获取用户信息
+     *
+     * @param userId 用户ID
+     * @return 用户信息
+     */
+    @GetMapping("/user/profile/public/{userId}")
+    Result<Object> getUserProfile(@PathVariable("userId") Long userId);
+
+    /**
+     * 发送用户通知
+     *
+     * @param userId 用户ID
+     * @param type 通知类型
+     * @param content 通知内容
+     * @param relatedId 相关ID
+     * @param token 认证令牌
+     * @return 结果
+     */
+    @PostMapping("/user/notification/send/{userId}/{type}")
+    Result<Void> sendNotification(@PathVariable("userId") Long userId,
+                                  @PathVariable("type") Integer type,
+                                  @RequestHeader("Authorization") String token);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClientFallbackFactory.java b/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClientFallbackFactory.java
new file mode 100644
index 0000000..924d859
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/feign/UserFeignClientFallbackFactory.java
@@ -0,0 +1,32 @@
+package com.nuaa.video.comment.feign;
+
+import com.nuaa.video.common.model.vo.Result;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cloud.openfeign.FallbackFactory;
+import org.springframework.stereotype.Component;
+
+/**
+ * 用户服务Feign客户端降级工厂
+ */
+@Slf4j
+@Component
+public class UserFeignClientFallbackFactory implements FallbackFactory<UserFeignClient> {
+
+    @Override
+    public UserFeignClient create(Throwable cause) {
+        log.error("用户服务调用失败：", cause);
+        return new UserFeignClient() {
+            @Override
+            public Result<Object> getUserProfile(Long userId) {
+                log.error("获取用户信息失败，用户ID：{}", userId);
+                return Result.error("获取用户信息失败，请稍后重试");
+            }
+
+            @Override
+            public Result<Void> sendNotification(Long userId, Integer type, String token) {
+                log.error("发送用户通知失败，用户ID：{}, 类型：{}", userId, type);
+                return Result.error("发送用户通知失败");
+            }
+        };
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/filter/JwtAuthenticationFilter.java b/video-comment/src/main/java/com/nuaa/video/comment/filter/JwtAuthenticationFilter.java
new file mode 100644
index 0000000..3dcfd59
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/filter/JwtAuthenticationFilter.java
@@ -0,0 +1,102 @@
+package com.nuaa.video.comment.filter;
+
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.security.Keys;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * JWT认证过滤器
+ */
+@Slf4j
+@Component
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+
+    @Value("${jwt.secret:video-platform-secret-key-2024-nuaa}")
+    private String secret;
+
+    private static final String TOKEN_PREFIX = "Bearer ";
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
+            throws ServletException, IOException {
+        // 从请求头中获取JWT令牌
+        String token = getJwtFromRequest(request);
+
+        // 如果令牌存在，则本地验证
+        if (StringUtils.hasText(token)) {
+            try {
+                // 验证令牌
+                Claims claims = Jwts.parser()
+                        .verifyWith(getSigningKey())
+                        .build()
+                        .parseSignedClaims(token)
+                        .getPayload();
+
+                // 从令牌中提取用户ID和用户名
+                Long userId = Long.parseLong(claims.getSubject());
+                String username = claims.get("username", String.class);
+
+                // 设置用户权限
+                List<SimpleGrantedAuthority> authorities = new ArrayList<>();
+
+                // 创建认证对象
+                UsernamePasswordAuthenticationToken authentication =
+                        new UsernamePasswordAuthenticationToken(username, null, authorities);
+
+                // 设置额外信息
+                authentication.setDetails(userId);
+
+                // 设置认证信息到安全上下文
+                SecurityContextHolder.getContext().setAuthentication(authentication);
+
+                // 在请求属性中存储用户ID
+                request.setAttribute("userId", userId);
+                request.setAttribute("username", username);
+
+                log.debug("认证成功: 用户ID={}, 用户名={}", userId, username);
+            } catch (Exception e) {
+                log.error("JWT验证失败: {}", e.getMessage());
+                SecurityContextHolder.clearContext();
+            }
+        }
+
+        filterChain.doFilter(request, response);
+    }
+
+    /**
+     * 从请求头中提取JWT令牌
+     */
+    private String getJwtFromRequest(HttpServletRequest request) {
+        String bearerToken = request.getHeader("Authorization");
+        if (StringUtils.hasText(bearerToken) && bearerToken.startsWith(TOKEN_PREFIX)) {
+            return bearerToken.substring(TOKEN_PREFIX.length());
+        }
+        return null;
+    }
+
+    /**
+     * 获取签名密钥
+     */
+    private SecretKey getSigningKey() {
+        byte[] keyBytes = secret.getBytes(StandardCharsets.UTF_8);
+        return Keys.hmacShaKeyFor(keyBytes);
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentLikeMapper.java b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentLikeMapper.java
new file mode 100644
index 0000000..0c17e6f
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentLikeMapper.java
@@ -0,0 +1,31 @@
+package com.nuaa.video.comment.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.nuaa.video.comment.entity.CommentLike;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+/**
+ * 评论点赞Mapper
+ */
+@Mapper
+public interface CommentLikeMapper extends BaseMapper<CommentLike> {
+
+    /**
+     * 检查用户是否已点赞
+     *
+     * @param commentId 评论/回复ID
+     * @param userId 用户ID
+     * @param type 类型(1:评论,2:回复)
+     * @return 点赞记录数
+     */
+    long checkUserLiked(@Param("commentId") Long commentId, @Param("userId") Long userId, @Param("type") Integer type);
+
+    /**
+     * 统计视频评论点赞数
+     *
+     * @param videoId 视频ID
+     * @return 点赞数
+     */
+    int countVideoCommentLikes(@Param("videoId") Long videoId);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentMapper.java b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentMapper.java
new file mode 100644
index 0000000..a60ec49
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentMapper.java
@@ -0,0 +1,50 @@
+package com.nuaa.video.comment.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.nuaa.video.comment.dto.CommentQueryDTO;
+import com.nuaa.video.comment.entity.Comment;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+/**
+ * 评论Mapper
+ */
+@Mapper
+public interface CommentMapper extends BaseMapper<Comment> {
+
+    /**
+     * 分页查询评论列表
+     *
+     * @param page 分页参数
+     * @param query 查询条件
+     * @return 评论列表
+     */
+    Page<Comment> selectCommentList(Page<Comment> page, @Param("query") CommentQueryDTO query);
+
+    /**
+     * 增加点赞数
+     *
+     * @param commentId 评论ID
+     * @param count 增加数量
+     * @return 影响行数
+     */
+    int increaseLikeCount(@Param("commentId") Long commentId, @Param("count") int count);
+
+    /**
+     * 增加回复数
+     *
+     * @param commentId 评论ID
+     * @param count 增加数量
+     * @return 影响行数
+     */
+    int increaseReplyCount(@Param("commentId") Long commentId, @Param("count") int count);
+
+    /**
+     * 统计视频评论数
+     *
+     * @param videoId 视频ID
+     * @return 评论数
+     */
+    int countVideoComments(@Param("videoId") Long videoId);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentReplyMapper.java b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentReplyMapper.java
new file mode 100644
index 0000000..efb990f
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/mapper/CommentReplyMapper.java
@@ -0,0 +1,51 @@
+package com.nuaa.video.comment.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.nuaa.video.comment.entity.CommentReply;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 评论回复Mapper
+ */
+@Mapper
+public interface CommentReplyMapper extends BaseMapper<CommentReply> {
+
+    /**
+     * 查询评论的回复列表
+     *
+     * @param page 分页参数
+     * @param commentId 评论ID
+     * @return 回复列表
+     */
+    Page<CommentReply> selectCommentReplyList(Page<CommentReply> page, @Param("commentId") Long commentId);
+
+    /**
+     * 获取评论的热门回复(前N条)
+     *
+     * @param commentId 评论ID
+     * @param limit 数量限制
+     * @return 热门回复列表
+     */
+    List<CommentReply> selectHotReplies(@Param("commentId") Long commentId, @Param("limit") int limit);
+
+    /**
+     * 增加点赞数
+     *
+     * @param replyId 回复ID
+     * @param count 增加数量
+     * @return 影响行数
+     */
+    int increaseLikeCount(@Param("replyId") Long replyId, @Param("count") int count);
+
+    /**
+     * 统计视频回复数
+     *
+     * @param videoId 视频ID
+     * @return 回复数
+     */
+    int countVideoReplies(@Param("videoId") Long videoId);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/service/CommentReplyService.java b/video-comment/src/main/java/com/nuaa/video/comment/service/CommentReplyService.java
new file mode 100644
index 0000000..82eff2a
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/service/CommentReplyService.java
@@ -0,0 +1,73 @@
+package com.nuaa.video.comment.service;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.nuaa.video.comment.dto.ReplyAddDTO;
+import com.nuaa.video.comment.entity.CommentReply;
+import com.nuaa.video.comment.vo.ReplyVO;
+import com.nuaa.video.common.model.vo.Result;
+
+import java.util.List;
+
+/**
+ * 评论回复服务接口
+ */
+public interface CommentReplyService extends IService<CommentReply> {
+
+    /**
+     * 添加回复
+     *
+     * @param replyDTO 回复信息
+     * @param userId 用户ID
+     * @return 回复ID
+     */
+    Result<Long> addReply(ReplyAddDTO replyDTO, Long userId);
+
+    /**
+     * 分页查询评论的回复列表
+     *
+     * @param commentId 评论ID
+     * @param page 页码
+     * @param size 每页数量
+     * @param userId 当前用户ID
+     * @return 回复列表
+     */
+    Result<Page<ReplyVO>> getReplyList(Long commentId, Integer page, Integer size, Long userId);
+
+    /**
+     * 获取评论的热门回复
+     *
+     * @param commentId 评论ID
+     * @param limit 数量限制
+     * @param userId 当前用户ID
+     * @return 热门回复列表
+     */
+    Result<List<ReplyVO>> getHotReplies(Long commentId, Integer limit, Long userId);
+
+    /**
+     * 删除回复
+     *
+     * @param id 回复ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> deleteReply(Long id, Long userId);
+
+    /**
+     * 点赞回复
+     *
+     * @param id 回复ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> likeReply(Long id, Long userId);
+
+    /**
+     * 取消点赞回复
+     *
+     * @param id 回复ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> unlikeReply(Long id, Long userId);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/service/CommentService.java b/video-comment/src/main/java/com/nuaa/video/comment/service/CommentService.java
new file mode 100644
index 0000000..d40647f
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/service/CommentService.java
@@ -0,0 +1,98 @@
+package com.nuaa.video.comment.service;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.nuaa.video.comment.dto.CommentAddDTO;
+import com.nuaa.video.comment.dto.CommentQueryDTO;
+import com.nuaa.video.comment.entity.Comment;
+import com.nuaa.video.comment.vo.CommentStatVO;
+import com.nuaa.video.comment.vo.CommentVO;
+import com.nuaa.video.common.model.vo.Result;
+
+/**
+ * 评论服务接口
+ */
+public interface CommentService extends IService<Comment> {
+
+    /**
+     * 添加评论
+     *
+     * @param commentDTO 评论信息
+     * @param userId 用户ID
+     * @return 评论ID
+     */
+    Result<Long> addComment(CommentAddDTO commentDTO, Long userId);
+
+    /**
+     * 分页查询评论列表
+     *
+     * @param queryDTO 查询条件
+     * @param userId 当前用户ID
+     * @return 评论列表
+     */
+    Result<Page<CommentVO>> getCommentList(CommentQueryDTO queryDTO, Long userId);
+
+    /**
+     * 获取评论详情
+     *
+     * @param id 评论ID
+     * @param userId 当前用户ID
+     * @return 评论详情
+     */
+    Result<CommentVO> getCommentDetail(Long id, Long userId);
+
+    /**
+     * 删除评论
+     *
+     * @param id 评论ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> deleteComment(Long id, Long userId);
+
+    /**
+     * 点赞评论
+     *
+     * @param id 评论ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> likeComment(Long id, Long userId);
+
+    /**
+     * 取消点赞评论
+     *
+     * @param id 评论ID
+     * @param userId 用户ID
+     * @return 操作结果
+     */
+    Result<Void> unlikeComment(Long id, Long userId);
+
+    /**
+     * 置顶评论
+     *
+     * @param id 评论ID
+     * @param userId 用户ID
+     * @param videoId 视频ID
+     * @return 操作结果
+     */
+    Result<Void> topComment(Long id, Long userId, Long videoId);
+
+    /**
+     * 取消置顶评论
+     *
+     * @param id 评论ID
+     * @param userId 用户ID
+     * @param videoId 视频ID
+     * @return 操作结果
+     */
+    Result<Void> untopComment(Long id, Long userId, Long videoId);
+
+    /**
+     * 获取评论统计信息
+     *
+     * @param videoId 视频ID
+     * @return 统计信息
+     */
+    Result<CommentStatVO> getCommentStat(Long videoId);
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentReplyServiceImpl.java b/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentReplyServiceImpl.java
new file mode 100644
index 0000000..1a2b9ef
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentReplyServiceImpl.java
@@ -0,0 +1,281 @@
+package com.nuaa.video.comment.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.nuaa.video.comment.dto.ReplyAddDTO;
+import com.nuaa.video.comment.entity.Comment;
+import com.nuaa.video.comment.entity.CommentLike;
+import com.nuaa.video.comment.entity.CommentReply;
+import com.nuaa.video.comment.feign.UserFeignClient;
+import com.nuaa.video.comment.mapper.CommentLikeMapper;
+import com.nuaa.video.comment.mapper.CommentMapper;
+import com.nuaa.video.comment.mapper.CommentReplyMapper;
+import com.nuaa.video.comment.service.CommentReplyService;
+import com.nuaa.video.comment.utils.SensitiveWordFilter;
+import com.nuaa.video.comment.vo.ReplyVO;
+import com.nuaa.video.common.model.vo.Result;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 评论回复服务实现类
+ */
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class CommentReplyServiceImpl extends ServiceImpl<CommentReplyMapper, CommentReply> implements CommentReplyService {
+
+    private final CommentReplyMapper commentReplyMapper;
+    private final CommentMapper commentMapper;
+    private final CommentLikeMapper commentLikeMapper;
+    private final UserFeignClient userFeignClient;
+    private final SensitiveWordFilter sensitiveWordFilter;
+
+    @Value("${comment.sensitive-filter.enabled:true}")
+    private boolean sensitiveFilterEnabled;
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Long> addReply(ReplyAddDTO replyDTO, Long userId) {
+        // 校验评论是否存在
+        Comment comment = commentMapper.selectById(replyDTO.getCommentId());
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 校验回复内容
+        String content = replyDTO.getContent();
+        if (sensitiveFilterEnabled && sensitiveWordFilter.containsSensitiveWord(content)) {
+            // 包含敏感词，进行替换
+            content = sensitiveWordFilter.replaceSensitiveWords(content, "*");
+        }
+
+        // 创建回复对象
+        CommentReply reply = new CommentReply();
+        reply.setCommentId(replyDTO.getCommentId());
+        reply.setVideoId(replyDTO.getVideoId());
+        reply.setUserId(userId);
+        reply.setReplyToId(replyDTO.getReplyToId());
+        reply.setContent(content);
+        reply.setLikeCount(0);
+        reply.setStatus(1); // 默认正常状态
+        reply.setCreatedBy(userId.toString());
+        reply.setUpdatedBy(userId.toString());
+        reply.setCreateTime(LocalDateTime.now());
+        reply.setUpdateTime(LocalDateTime.now());
+
+        // 保存回复
+        save(reply);
+
+        // 更新评论回复数
+        commentMapper.increaseReplyCount(replyDTO.getCommentId(), 1);
+
+        // 发送回复通知给评论作者
+        try {
+            // 如果回复者不是评论作者，发送通知
+            if (!userId.equals(comment.getUserId())) {
+                userFeignClient.sendNotification(comment.getUserId(), 2, "Bearer ");
+            }
+
+            // 如果存在回复目标用户，且回复者不是回复目标用户，发送通知
+            if (replyDTO.getReplyToId() != null && !userId.equals(replyDTO.getReplyToId())) {
+                userFeignClient.sendNotification(replyDTO.getReplyToId(), 2, "Bearer ");
+            }
+        } catch (Exception e) {
+            log.error("发送回复通知失败", e);
+        }
+
+        return Result.success(reply.getId());
+    }
+
+    @Override
+    public Result<Page<ReplyVO>> getReplyList(Long commentId, Integer page, Integer size, Long userId) {
+        // 参数校验
+        if (commentId == null) {
+            return Result.error("评论ID不能为空");
+        }
+        if (page == null || page < 1) {
+            page = 1;
+        }
+        if (size == null || size < 1) {
+            size = 10;
+        }
+
+        // 分页查询回复
+        Page<CommentReply> replyPage = new Page<>(page, size);
+        replyPage = commentReplyMapper.selectCommentReplyList(replyPage, commentId);
+
+        // 构建返回结果
+        Page<ReplyVO> resultPage = new Page<>();
+        BeanUtils.copyProperties(replyPage, resultPage, "records");
+
+        List<ReplyVO> replyVOList = new ArrayList<>();
+        for (CommentReply reply : replyPage.getRecords()) {
+            ReplyVO vo = convertToReplyVO(reply, userId);
+            replyVOList.add(vo);
+        }
+
+        resultPage.setRecords(replyVOList);
+
+        return Result.success(resultPage);
+    }
+
+    @Override
+    public Result<List<ReplyVO>> getHotReplies(Long commentId, Integer limit, Long userId) {
+        // 参数校验
+        if (commentId == null) {
+            return Result.error("评论ID不能为空");
+        }
+        if (limit == null || limit < 1) {
+            limit = 3;
+        }
+
+        // 查询热门回复
+        List<CommentReply> hotReplies = commentReplyMapper.selectHotReplies(commentId, limit);
+
+        // 构建返回结果
+        List<ReplyVO> replyVOList = new ArrayList<>();
+        for (CommentReply reply : hotReplies) {
+            ReplyVO vo = convertToReplyVO(reply, userId);
+            replyVOList.add(vo);
+        }
+
+        return Result.success(replyVOList);
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> deleteReply(Long id, Long userId) {
+        // 查询回复
+        CommentReply reply = getById(id);
+        if (reply == null) {
+            return Result.error("回复不存在");
+        }
+
+        // 校验操作权限
+        if (!reply.getUserId().equals(userId)) {
+            return Result.error("无权删除该回复");
+        }
+
+        // 逻辑删除回复(设置状态为0)
+        reply.setStatus(0);
+        reply.setUpdatedBy(userId.toString());
+        reply.setUpdateTime(LocalDateTime.now());
+        updateById(reply);
+
+        // 更新评论回复数
+        commentMapper.increaseReplyCount(reply.getCommentId(), -1);
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> likeReply(Long id, Long userId) {
+        // 查询回复
+        CommentReply reply = getById(id);
+        if (reply == null || reply.getStatus() == 0) {
+            return Result.error("回复不存在");
+        }
+
+        // 检查是否已点赞
+        long count = commentLikeMapper.checkUserLiked(id, userId, 2);
+        if (count > 0) {
+            return Result.error("已经点赞过该回复");
+        }
+
+        // 添加点赞记录
+        CommentLike like = new CommentLike();
+        like.setCommentId(id);
+        like.setUserId(userId);
+        like.setType(2); // 2-回复
+        like.setCreateTime(LocalDateTime.now());
+        commentLikeMapper.insert(like);
+
+        // 更新回复点赞数
+        commentReplyMapper.increaseLikeCount(id, 1);
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> unlikeReply(Long id, Long userId) {
+        // 查询回复
+        CommentReply reply = getById(id);
+        if (reply == null || reply.getStatus() == 0) {
+            return Result.error("回复不存在");
+        }
+
+        // 检查是否已点赞
+        long count = commentLikeMapper.checkUserLiked(id, userId, 2);
+        if (count == 0) {
+            return Result.error("未点赞该回复");
+        }
+
+        // 删除点赞记录
+        commentLikeMapper.delete(new LambdaQueryWrapper<CommentLike>()
+                .eq(CommentLike::getCommentId, id)
+                .eq(CommentLike::getUserId, userId)
+                .eq(CommentLike::getType, 2));
+
+        // 更新回复点赞数
+        commentReplyMapper.increaseLikeCount(id, -1);
+
+        return Result.success();
+    }
+
+    /**
+     * 将回复实体转换为VO
+     */
+    private ReplyVO convertToReplyVO(CommentReply reply, Long userId) {
+        ReplyVO vo = new ReplyVO();
+        BeanUtils.copyProperties(reply, vo);
+
+        // 获取用户信息
+        try {
+            Result<Object> userResult = userFeignClient.getUserProfile(reply.getUserId());
+            if (userResult.getCode() == 200 && userResult.getData() != null) {
+                @SuppressWarnings("unchecked")
+                Map<String, Object> userData = (Map<String, Object>) userResult.getData();
+
+                vo.setUserNickname((String) userData.get("nickname"));
+                vo.setUserAvatar((String) userData.get("avatar"));
+            }
+
+            // 如果有回复目标用户，获取目标用户信息
+            if (reply.getReplyToId() != null) {
+                Result<Object> replyToResult = userFeignClient.getUserProfile(reply.getReplyToId());
+                if (replyToResult.getCode() == 200 && replyToResult.getData() != null) {
+                    @SuppressWarnings("unchecked")
+                    Map<String, Object> replyToData = (Map<String, Object>) replyToResult.getData();
+
+                    vo.setReplyToNickname((String) replyToData.get("nickname"));
+                    vo.setReplyToAvatar((String) replyToData.get("avatar"));
+                }
+            }
+        } catch (Exception e) {
+            log.error("获取用户信息失败, userId={}, replyToId={}", reply.getUserId(), reply.getReplyToId(), e);
+        }
+
+        // 获取点赞状态
+        if (userId != null) {
+            long likeCount = commentLikeMapper.checkUserLiked(reply.getId(), userId, 2);
+            vo.setIsLiked(likeCount > 0);
+        } else {
+            vo.setIsLiked(false);
+        }
+
+        return vo;
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentServiceImpl.java b/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentServiceImpl.java
new file mode 100644
index 0000000..5bbdff8
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/service/impl/CommentServiceImpl.java
@@ -0,0 +1,396 @@
+package com.nuaa.video.comment.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.nuaa.video.comment.dto.CommentAddDTO;
+import com.nuaa.video.comment.dto.CommentQueryDTO;
+import com.nuaa.video.comment.entity.Comment;
+import com.nuaa.video.comment.entity.CommentLike;
+import com.nuaa.video.comment.feign.ContentFeignClient;
+import com.nuaa.video.comment.feign.UserFeignClient;
+import com.nuaa.video.comment.mapper.CommentLikeMapper;
+import com.nuaa.video.comment.mapper.CommentMapper;
+import com.nuaa.video.comment.mapper.CommentReplyMapper;
+import com.nuaa.video.comment.service.CommentReplyService;
+import com.nuaa.video.comment.service.CommentService;
+import com.nuaa.video.comment.utils.SensitiveWordFilter;
+import com.nuaa.video.comment.vo.CommentStatVO;
+import com.nuaa.video.comment.vo.CommentVO;
+import com.nuaa.video.comment.vo.ReplyVO;
+import com.nuaa.video.common.model.vo.Result;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 评论服务实现类
+ */
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class CommentServiceImpl extends ServiceImpl<CommentMapper, Comment> implements CommentService {
+
+    private final CommentMapper commentMapper;
+    private final CommentReplyMapper commentReplyMapper;
+    private final CommentLikeMapper commentLikeMapper;
+    private final CommentReplyService commentReplyService;
+    private final ContentFeignClient contentFeignClient;
+    private final UserFeignClient userFeignClient;
+    private final SensitiveWordFilter sensitiveWordFilter;
+
+    @Value("${comment.sensitive-filter.enabled:true}")
+    private boolean sensitiveFilterEnabled;
+
+    @Value("${comment.review.enabled:false}")
+    private boolean reviewEnabled;
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Long> addComment(CommentAddDTO commentDTO, Long userId) {
+        // 校验视频是否存在
+        Result<Object> videoResult = contentFeignClient.getVideoInfo(commentDTO.getVideoId());
+        if (videoResult.getCode() != 200 || videoResult.getData() == null) {
+            return Result.error("视频不存在");
+        }
+
+        // 校验评论内容
+        String content = commentDTO.getContent();
+        if (sensitiveFilterEnabled && sensitiveWordFilter.containsSensitiveWord(content)) {
+            // 包含敏感词，进行替换
+            content = sensitiveWordFilter.replaceSensitiveWords(content, "*");
+        }
+
+        // 创建评论对象
+        Comment comment = new Comment();
+        comment.setVideoId(commentDTO.getVideoId());
+        comment.setUserId(userId);
+        comment.setContent(content);
+        comment.setLikeCount(0);
+        comment.setReplyCount(0);
+        comment.setTopStatus(0);
+        comment.setStatus(1); // 默认正常状态
+        comment.setCreatedBy(userId.toString());
+        comment.setUpdatedBy(userId.toString());
+        comment.setCreateTime(LocalDateTime.now());
+        comment.setUpdateTime(LocalDateTime.now());
+
+        // 保存评论
+        save(comment);
+
+        // 更新视频评论数
+        contentFeignClient.increaseCommentCount(commentDTO.getVideoId(), 1, "Bearer ");
+
+        // 发送评论通知给视频作者
+        try {
+            @SuppressWarnings("unchecked")
+            Map<String, Object> videoData = (Map<String, Object>) videoResult.getData();
+            Long videoAuthorId = Long.valueOf(videoData.get("userId").toString());
+
+            // 如果评论者不是视频作者，发送通知
+            if (!userId.equals(videoAuthorId)) {
+                userFeignClient.sendNotification(videoAuthorId, 2, "Bearer ");
+            }
+        } catch (Exception e) {
+            log.error("发送评论通知失败", e);
+        }
+
+        return Result.success(comment.getId());
+    }
+
+    @Override
+    public Result<Page<CommentVO>> getCommentList(CommentQueryDTO queryDTO, Long userId) {
+        // 参数校验
+        if (queryDTO.getPageNum() == null || queryDTO.getPageNum() < 1) {
+            queryDTO.setPageNum(1);
+        }
+        if (queryDTO.getPageSize() == null || queryDTO.getPageSize() < 1) {
+            queryDTO.setPageSize(10);
+        }
+
+        // 分页查询评论
+        Page<Comment> page = new Page<>(queryDTO.getPageNum(), queryDTO.getPageSize());
+        page = commentMapper.selectCommentList(page, queryDTO);
+
+        // 构建返回结果
+        Page<CommentVO> resultPage = new Page<>();
+        BeanUtils.copyProperties(page, resultPage, "records");
+
+        List<CommentVO> commentVOList = new ArrayList<>();
+        for (Comment comment : page.getRecords()) {
+            CommentVO vo = convertToCommentVO(comment, userId);
+
+            // 获取热门回复
+            Result<List<ReplyVO>> hotRepliesResult = commentReplyService.getHotReplies(comment.getId(), 3, userId);
+            if (hotRepliesResult.getCode() == 200 && hotRepliesResult.getData() != null) {
+                vo.setHotReplies(hotRepliesResult.getData());
+            } else {
+                vo.setHotReplies(new ArrayList<>());
+            }
+
+            commentVOList.add(vo);
+        }
+
+        resultPage.setRecords(commentVOList);
+
+        return Result.success(resultPage);
+    }
+
+    @Override
+    public Result<CommentVO> getCommentDetail(Long id, Long userId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 转换为VO
+        CommentVO commentVO = convertToCommentVO(comment, userId);
+
+        // 获取热门回复
+        Result<List<ReplyVO>> hotRepliesResult = commentReplyService.getHotReplies(comment.getId(), 3, userId);
+        if (hotRepliesResult.getCode() == 200 && hotRepliesResult.getData() != null) {
+            commentVO.setHotReplies(hotRepliesResult.getData());
+        } else {
+            commentVO.setHotReplies(new ArrayList<>());
+        }
+
+        return Result.success(commentVO);
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> deleteComment(Long id, Long userId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null) {
+            return Result.error("评论不存在");
+        }
+
+        // 校验操作权限
+        if (!comment.getUserId().equals(userId)) {
+            return Result.error("无权删除该评论");
+        }
+
+        // 逻辑删除评论(设置状态为0)
+        comment.setStatus(0);
+        comment.setUpdatedBy(userId.toString());
+        comment.setUpdateTime(LocalDateTime.now());
+        updateById(comment);
+
+        // 更新视频评论数
+        contentFeignClient.increaseCommentCount(comment.getVideoId(), -1, "Bearer ");
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> likeComment(Long id, Long userId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 检查是否已点赞
+        long count = commentLikeMapper.checkUserLiked(id, userId, 1);
+        if (count > 0) {
+            return Result.error("已经点赞过该评论");
+        }
+
+        // 添加点赞记录
+        CommentLike like = new CommentLike();
+        like.setCommentId(id);
+        like.setUserId(userId);
+        like.setType(1); // 1-评论
+        like.setCreateTime(LocalDateTime.now());
+        commentLikeMapper.insert(like);
+
+        // 更新评论点赞数
+        commentMapper.increaseLikeCount(id, 1);
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> unlikeComment(Long id, Long userId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 检查是否已点赞
+        long count = commentLikeMapper.checkUserLiked(id, userId, 1);
+        if (count == 0) {
+            return Result.error("未点赞该评论");
+        }
+
+        // 删除点赞记录
+        commentLikeMapper.delete(new LambdaQueryWrapper<CommentLike>()
+                .eq(CommentLike::getCommentId, id)
+                .eq(CommentLike::getUserId, userId)
+                .eq(CommentLike::getType, 1));
+
+        // 更新评论点赞数
+        commentMapper.increaseLikeCount(id, -1);
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> topComment(Long id, Long userId, Long videoId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 验证视频所有权(只有视频作者才能置顶评论)
+        Result<Object> videoResult = contentFeignClient.getVideoInfo(videoId);
+        if (videoResult.getCode() != 200 || videoResult.getData() == null) {
+            return Result.error("视频不存在");
+        }
+
+        try {
+            @SuppressWarnings("unchecked")
+            Map<String, Object> videoData = (Map<String, Object>) videoResult.getData();
+            Long videoAuthorId = Long.valueOf(videoData.get("userId").toString());
+
+            if (!userId.equals(videoAuthorId)) {
+                return Result.error("只有视频作者才能置顶评论");
+            }
+        } catch (Exception e) {
+            log.error("解析视频信息失败", e);
+            return Result.error("获取视频信息失败");
+        }
+
+        // 取消之前的置顶评论
+        LambdaQueryWrapper<Comment> wrapper = new LambdaQueryWrapper<Comment>()
+                .eq(Comment::getVideoId, videoId)
+                .eq(Comment::getTopStatus, 1);
+
+        List<Comment> topComments = list(wrapper);
+        for (Comment topComment : topComments) {
+            topComment.setTopStatus(0);
+            topComment.setUpdatedBy(userId.toString());
+            topComment.setUpdateTime(LocalDateTime.now());
+            updateById(topComment);
+        }
+
+        // 设置新的置顶评论
+        comment.setTopStatus(1);
+        comment.setUpdatedBy(userId.toString());
+        comment.setUpdateTime(LocalDateTime.now());
+        updateById(comment);
+
+        return Result.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Result<Void> untopComment(Long id, Long userId, Long videoId) {
+        // 查询评论
+        Comment comment = getById(id);
+        if (comment == null || comment.getStatus() == 0) {
+            return Result.error("评论不存在");
+        }
+
+        // 验证视频所有权(只有视频作者才能取消置顶评论)
+        Result<Object> videoResult = contentFeignClient.getVideoInfo(videoId);
+        if (videoResult.getCode() != 200 || videoResult.getData() == null) {
+            return Result.error("视频不存在");
+        }
+
+        try {
+            @SuppressWarnings("unchecked")
+            Map<String, Object> videoData = (Map<String, Object>) videoResult.getData();
+            Long videoAuthorId = Long.valueOf(videoData.get("userId").toString());
+
+            if (!userId.equals(videoAuthorId)) {
+                return Result.error("只有视频作者才能取消置顶评论");
+            }
+        } catch (Exception e) {
+            log.error("解析视频信息失败", e);
+            return Result.error("获取视频信息失败");
+        }
+
+        // 取消置顶评论
+        if (comment.getTopStatus() == 1) {
+            comment.setTopStatus(0);
+            comment.setUpdatedBy(userId.toString());
+            comment.setUpdateTime(LocalDateTime.now());
+            updateById(comment);
+        }
+
+        return Result.success();
+    }
+
+    @Override
+    public Result<CommentStatVO> getCommentStat(Long videoId) {
+        if (videoId == null) {
+            return Result.error("视频ID不能为空");
+        }
+
+        // 统计评论数量
+        int commentCount = commentMapper.countVideoComments(videoId);
+
+        // 统计回复数量
+        int replyCount = commentReplyMapper.countVideoReplies(videoId);
+
+        // 统计点赞数量
+        int likeCount = commentLikeMapper.countVideoCommentLikes(videoId);
+
+        // 构建统计结果
+        CommentStatVO statVO = new CommentStatVO();
+        statVO.setVideoId(videoId);
+        statVO.setCommentCount(commentCount);
+        statVO.setReplyCount(replyCount);
+        statVO.setLikeCount(likeCount);
+
+        return Result.success(statVO);
+    }
+
+    /**
+     * 将评论实体转换为VO
+     */
+    private CommentVO convertToCommentVO(Comment comment, Long userId) {
+        CommentVO vo = new CommentVO();
+        BeanUtils.copyProperties(comment, vo);
+
+        // 获取用户信息
+        try {
+            Result<Object> userResult = userFeignClient.getUserProfile(comment.getUserId());
+            if (userResult.getCode() == 200 && userResult.getData() != null) {
+                @SuppressWarnings("unchecked")
+                Map<String, Object> userData = (Map<String, Object>) userResult.getData();
+
+                vo.setUserNickname((String) userData.get("nickname"));
+                vo.setUserAvatar((String) userData.get("avatar"));
+            }
+        } catch (Exception e) {
+            log.error("获取用户信息失败, userId={}", comment.getUserId(), e);
+        }
+
+        // 获取点赞状态
+        if (userId != null) {
+            long likeCount = commentLikeMapper.checkUserLiked(comment.getId(), userId, 1);
+            vo.setIsLiked(likeCount > 0);
+        } else {
+            vo.setIsLiked(false);
+        }
+
+        return vo;
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/utils/SensitiveWordFilter.java b/video-comment/src/main/java/com/nuaa/video/comment/utils/SensitiveWordFilter.java
new file mode 100644
index 0000000..587bd94
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/utils/SensitiveWordFilter.java
@@ -0,0 +1,215 @@
+package com.nuaa.video.comment.utils;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import jakarta.annotation.PostConstruct;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.*;
+
+/**
+ * 敏感词过滤工具类
+ */
+@Slf4j
+@Component
+public class SensitiveWordFilter {
+
+    /**
+     * 敏感词匹配规则
+     */
+    private static final int MinMatchType = 1; // 最小匹配规则
+    private static final int MaxMatchType = 2; // 最大匹配规则
+
+    /**
+     * 敏感词集合
+     */
+    private static HashMap<String, Object> sensitiveWordMap;
+
+    /**
+     * 初始化敏感词库
+     */
+    @PostConstruct
+    public void init() {
+        try {
+            // 从资源文件夹读取敏感词列表
+            Set<String> sensitiveWordSet = new HashSet<>();
+
+            // 这里简化处理，实际项目中可以从数据库或配置文件读取
+            InputStream is = this.getClass().getResourceAsStream("/sensitive-words.txt");
+            if (is != null) {
+                BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+                String line;
+                while ((line = reader.readLine()) != null) {
+                    if (line.trim().length() > 0) {
+                        sensitiveWordSet.add(line.trim());
+                    }
+                }
+                reader.close();
+            } else {
+                // 添加一些默认敏感词
+                sensitiveWordSet.add("敏感词1");
+                sensitiveWordSet.add("敏感词2");
+                sensitiveWordSet.add("敏感词3");
+            }
+
+            // 初始化敏感词库
+            sensitiveWordMap = new HashMap<>(sensitiveWordSet.size());
+            for (String word : sensitiveWordSet) {
+                if (word.trim().length() > 0) {
+                    addSensitiveWord(word);
+                }
+            }
+
+            log.info("敏感词库初始化完成，共有敏感词:{} 个", sensitiveWordSet.size());
+        } catch (IOException e) {
+            log.error("初始化敏感词库失败", e);
+            sensitiveWordMap = new HashMap<>();
+        }
+    }
+
+    /**
+     * 添加敏感词到HashMap中
+     */
+    private void addSensitiveWord(String word) {
+        // 获取敏感词
+        char[] chars = word.toCharArray();
+
+        // 初始化敏感词库
+        HashMap<String, Object> currentMap = sensitiveWordMap;
+        for (int i = 0; i < chars.length; i++) {
+            // 转换成char型
+            char charKey = chars[i];
+            // 获取
+            HashMap<String, Object> wordMap = (HashMap<String, Object>) currentMap.get(String.valueOf(charKey));
+            // 如果存在该key，直接赋值，用于下一个循环获取
+            if (wordMap != null) {
+                currentMap = wordMap;
+            } else {
+                // 不存在则，则构建一个map，同时将isEnd设置为0，因为他不是最后一个
+                HashMap<String, Object> newWordMap = new HashMap<>();
+                // 不是最后一个
+                newWordMap.put("isEnd", "0");
+                // 添加到集合
+                currentMap.put(String.valueOf(charKey), newWordMap);
+                // 重新获取
+                currentMap = newWordMap;
+            }
+
+            // 如果是最后一个，则设置为结尾字
+            if (i == chars.length - 1) {
+                currentMap.put("isEnd", "1");
+            }
+        }
+    }
+
+    /**
+     * 检查文本中是否包含敏感词
+     */
+    public boolean containsSensitiveWord(String text) {
+        if (text == null || text.trim().length() == 0) {
+            return false;
+        }
+
+        return !getSensitiveWords(text, MinMatchType).isEmpty();
+    }
+
+    /**
+     * 获取文本中的敏感词
+     */
+    public Set<String> getSensitiveWords(String text, int matchType) {
+        Set<String> sensitiveWords = new HashSet<>();
+
+        if (sensitiveWordMap == null || sensitiveWordMap.isEmpty() || text == null) {
+            return sensitiveWords;
+        }
+
+        char[] chars = text.toCharArray();
+        for (int i = 0; i < chars.length; i++) {
+            int length = checkSensitiveWord(chars, i, matchType);
+            if (length > 0) {
+                sensitiveWords.add(text.substring(i, i + length));
+                // 如果是最小匹配，直接跳过匹配的字符
+                if (matchType == MinMatchType) {
+                    i += length - 1;
+                }
+            }
+        }
+
+        return sensitiveWords;
+    }
+
+    /**
+     * 替换敏感词
+     */
+    public String replaceSensitiveWords(String text, String replacement) {
+        if (text == null || text.trim().length() == 0) {
+            return text;
+        }
+
+        Set<String> sensitiveWords = getSensitiveWords(text, MaxMatchType);
+        for (String word : sensitiveWords) {
+            String replaceString = getReplacement(replacement, word.length());
+            text = text.replace(word, replaceString);
+        }
+
+        return text;
+    }
+
+    /**
+     * 生成替换字符串
+     */
+    private String getReplacement(String replacement, int length) {
+        if (replacement == null || replacement.isEmpty()) {
+            replacement = "*";
+        }
+
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < length; i++) {
+            sb.append(replacement);
+        }
+
+        return sb.toString();
+    }
+
+    /**
+     * 检查敏感词
+     */
+    private int checkSensitiveWord(char[] chars, int beginIndex, int matchType) {
+        boolean flag = false;    // 敏感词结束标识位
+        int matchFlag = 0;     // 匹配标识数默认为0
+        HashMap<String, Object> nowMap = sensitiveWordMap;
+
+        for (int i = beginIndex; i < chars.length; i++) {
+            String key = String.valueOf(chars[i]);
+            // 获取指定key
+            nowMap = (HashMap<String, Object>) nowMap.get(key);
+            // 如果存在，则判断是否为最后一个
+            if (nowMap != null) {
+                // 找到相应key，匹配标识+1
+                matchFlag++;
+                // 如果为最后一个匹配规则,结束循环，返回匹配标识数
+                if ("1".equals(nowMap.get("isEnd"))) {
+                    // 结束标志位为true
+                    flag = true;
+                    // 最小规则，直接返回,最大规则还需继续查找
+                    if (MinMatchType == matchType) {
+                        break;
+                    }
+                }
+            } else {
+                // 不存在，直接返回
+                break;
+            }
+        }
+
+        // 长度必须大于0，flag必须为true
+        if (matchFlag < 1 || !flag) {
+            matchFlag = 0;
+        }
+
+        return matchFlag;
+    }
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentStatVO.java b/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentStatVO.java
new file mode 100644
index 0000000..43e5844
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentStatVO.java
@@ -0,0 +1,33 @@
+package com.nuaa.video.comment.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 评论统计VO
+ */
+@Data
+public class CommentStatVO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 评论总数
+     */
+    private Integer commentCount;
+
+    /**
+     * 回复总数
+     */
+    private Integer replyCount;
+
+    /**
+     * 点赞总数
+     */
+    private Integer likeCount;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentVO.java b/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentVO.java
new file mode 100644
index 0000000..21007ae
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/vo/CommentVO.java
@@ -0,0 +1,75 @@
+package com.nuaa.video.comment.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 评论VO
+ */
+@Data
+public class CommentVO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 评论ID
+     */
+    private Long id;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 用户昵称
+     */
+    private String userNickname;
+
+    /**
+     * 用户头像
+     */
+    private String userAvatar;
+
+    /**
+     * 评论内容
+     */
+    private String content;
+
+    /**
+     * 点赞数
+     */
+    private Integer likeCount;
+
+    /**
+     * 回复数
+     */
+    private Integer replyCount;
+
+    /**
+     * 置顶状态(0:普通,1:置顶)
+     */
+    private Integer topStatus;
+
+    /**
+     * 是否已点赞
+     */
+    private Boolean isLiked;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createTime;
+
+    /**
+     * 热门回复列表(前3条)
+     */
+    private List<ReplyVO> hotReplies;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/java/com/nuaa/video/comment/vo/ReplyVO.java b/video-comment/src/main/java/com/nuaa/video/comment/vo/ReplyVO.java
new file mode 100644
index 0000000..799dee8
--- /dev/null
+++ b/video-comment/src/main/java/com/nuaa/video/comment/vo/ReplyVO.java
@@ -0,0 +1,79 @@
+package com.nuaa.video.comment.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 回复VO
+ */
+@Data
+public class ReplyVO implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 回复ID
+     */
+    private Long id;
+
+    /**
+     * 评论ID
+     */
+    private Long commentId;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 用户昵称
+     */
+    private String userNickname;
+
+    /**
+     * 用户头像
+     */
+    private String userAvatar;
+
+    /**
+     * 回复目标用户ID
+     */
+    private Long replyToId;
+
+    /**
+     * 回复目标用户昵称
+     */
+    private String replyToNickname;
+
+    /**
+     * 回复目标用户头像
+     */
+    private String replyToAvatar;
+
+    /**
+     * 回复内容
+     */
+    private String content;
+
+    /**
+     * 点赞数
+     */
+    private Integer likeCount;
+
+    /**
+     * 是否已点赞
+     */
+    private Boolean isLiked;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createTime;
+}
\ No newline at end of file
diff --git a/video-comment/src/main/resources/application-dev.yml b/video-comment/src/main/resources/application-dev.yml
new file mode 100644
index 0000000..ba7e610
--- /dev/null
+++ b/video-comment/src/main/resources/application-dev.yml
@@ -0,0 +1,25 @@
+spring:
+  datasource:
+    dynamic:
+      primary: master
+      strict: false
+      datasource:
+        master:
+          url: jdbc:mysql://5.180.253.115:3306/video_comment?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
+          username: root
+          password: sty@G458221
+          driver-class-name: com.mysql.cj.jdbc.Driver
+
+  data:
+    redis:
+      database: 3
+      host: 5.180.253.115
+      port: 6379
+      password: redis_EsJ8FX
+      timeout: 10000
+
+# 开发环境日志级别
+logging:
+  level:
+    com.nuaa.video: debug
+    org.springframework.security: debug
\ No newline at end of file
diff --git a/video-comment/src/main/resources/application.yml b/video-comment/src/main/resources/application.yml
index 95409fb..0fa6c3f 100644
--- a/video-comment/src/main/resources/application.yml
+++ b/video-comment/src/main/resources/application.yml
@@ -4,30 +4,109 @@ server:
 spring:
   application:
     name: video-comment
+  profiles:
+    active: dev
+  config:
+    import:
+      - optional:nacos:${spring.application.name}.yaml
   cloud:
     nacos:
       discovery:
-        server-addr: 5.180.253.115:8848
-        namespace: public
-        group: DEFAULT_GROUP
+        server-addr: ${NACOS_HOST:5.180.253.115}:${NACOS_PORT:8848}
+        namespace: ${NACOS_NAMESPACE:public}
+        group: ${NACOS_GROUP:DEFAULT_GROUP}
+      config:
+        server-addr: ${spring.cloud.nacos.discovery.server-addr}
+        namespace: ${spring.cloud.nacos.discovery.namespace}
+        group: ${spring.cloud.nacos.discovery.group}
+        file-extension: yaml
     sentinel:
       transport:
-        dashboard: 5.180.253.115:8080
+        dashboard: ${SENTINEL_DASHBOARD_HOST:5.180.253.115}:${SENTINEL_DASHBOARD_PORT:8080}
         port: 8723
       eager: true
+
   datasource:
-    url: jdbc:mysql://5.180.253.115:3306/video_comment?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai
-    username: root
-    password: sty@G458221
     driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://${MYSQL_HOST:5.180.253.115}:${MYSQL_PORT:3306}/video_comment?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
+    username: ${MYSQL_USERNAME:root}
+    password: ${MYSQL_PASSWORD:sty@G458221}
+    hikari:
+      minimum-idle: 5
+      maximum-pool-size: 20
+      idle-timeout: 30000
+      max-lifetime: 1200000
+      connection-timeout: 30000
+      connection-test-query: SELECT 1
+
   data:
     redis:
-      host: 5.180.253.115
-      port: 6379
-      password: redis_EsJ8FX
+      host: ${REDIS_HOST:5.180.253.115}
+      port: ${REDIS_PORT:6379}
+      password: ${REDIS_PASSWORD:redis_EsJ8FX}
       database: 3
+      timeout: 10000
+      lettuce:
+        pool:
+          max-active: 200
+          max-wait: -1
+          max-idle: 10
+          min-idle: 0
 
 mybatis-plus:
   mapper-locations: classpath:mapper/*.xml
+  type-aliases-package: com.nuaa.video.comment.entity
   configuration:
-    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
\ No newline at end of file
+    map-underscore-to-camel-case: true
+    cache-enabled: false
+    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
+  global-config:
+    db-config:
+      id-type: auto
+      logic-delete-field: status
+      logic-delete-value: 0
+      logic-not-delete-value: 1
+
+# 评论服务配置
+comment:
+  # 敏感词过滤
+  sensitive-filter:
+    enabled: true
+  # 评论审核
+  review:
+    enabled: false  # 默认不开启自动审核，由管理员手动审核
+
+# JWT配置与auth模块保持一致
+jwt:
+  secret: video-platform-secret-key-2024-nuaa
+  expiration: 86400
+  token-header: Authorization
+  token-prefix: "Bearer "
+
+auth:
+  ignore-urls:
+    - /comment/public/**
+    - /actuator/**
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: '*'
+  endpoint:
+    health:
+      show-details: always
+
+feign:
+  client:
+    config:
+      default:
+        connectTimeout: 5000
+        readTimeout: 5000
+  circuitbreaker:
+    enabled: true
+
+logging:
+  level:
+    com.nuaa.video: info
+    org.springframework.security: info
\ No newline at end of file
diff --git a/video-comment/src/main/resources/mapper/CommentLikeMapper.xml b/video-comment/src/main/resources/mapper/CommentLikeMapper.xml
new file mode 100644
index 0000000..d36efbf
--- /dev/null
+++ b/video-comment/src/main/resources/mapper/CommentLikeMapper.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.nuaa.video.comment.mapper.CommentLikeMapper">
+
+    <!-- 检查用户是否已点赞 -->
+    <select id="checkUserLiked" resultType="long">
+        SELECT COUNT(1)
+        FROM comment_like
+        WHERE comment_id = #{commentId}
+          AND user_id = #{userId}
+          AND type = #{type}
+    </select>
+
+    <!-- 统计视频评论点赞数 -->
+    <select id="countVideoCommentLikes" resultType="int">
+        SELECT COUNT(1)
+        FROM comment_like cl
+                 LEFT JOIN comment c ON cl.comment_id = c.id AND cl.type = 1
+                 LEFT JOIN comment_reply cr ON cl.comment_id = cr.id AND cl.type = 2
+        WHERE (c.video_id = #{videoId} OR cr.video_id = #{videoId})
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/video-comment/src/main/resources/mapper/CommentMapper.xml b/video-comment/src/main/resources/mapper/CommentMapper.xml
new file mode 100644
index 0000000..82f4d66
--- /dev/null
+++ b/video-comment/src/main/resources/mapper/CommentMapper.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.nuaa.video.comment.mapper.CommentMapper">
+
+    <!-- 分页查询评论列表 -->
+    <select id="selectCommentList" resultType="com.nuaa.video.comment.entity.Comment">
+        SELECT *
+        FROM comment
+        <where>
+            status = 1
+            <if test="query.videoId != null">
+                AND video_id = #{query.videoId}
+            </if>
+            <if test="query.userId != null">
+                AND user_id = #{query.userId}
+            </if>
+        </where>
+        <choose>
+            <when test="query.orderBy != null and query.orderBy != ''">
+                ORDER BY top_status DESC, ${query.orderBy}
+                <if test="query.orderDirection != null and query.orderDirection != ''">
+                    ${query.orderDirection}
+                </if>
+            </when>
+            <otherwise>
+                ORDER BY top_status DESC, create_time DESC
+            </otherwise>
+        </choose>
+    </select>
+
+    <!-- 增加点赞数 -->
+    <update id="increaseLikeCount">
+        UPDATE comment
+        SET like_count = like_count + #{count}
+        WHERE id = #{commentId}
+    </update>
+
+    <!-- 增加回复数 -->
+    <update id="increaseReplyCount">
+        UPDATE comment
+        SET reply_count = reply_count + #{count}
+        WHERE id = #{commentId}
+    </update>
+
+    <!-- 统计视频评论数 -->
+    <select id="countVideoComments" resultType="int">
+        SELECT COUNT(1)
+        FROM comment
+        WHERE video_id = #{videoId}
+          AND status = 1
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/video-comment/src/main/resources/mapper/CommentReplyMapper.xml b/video-comment/src/main/resources/mapper/CommentReplyMapper.xml
new file mode 100644
index 0000000..420bc2e
--- /dev/null
+++ b/video-comment/src/main/resources/mapper/CommentReplyMapper.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.nuaa.video.comment.mapper.CommentReplyMapper">
+
+    <!-- 查询评论的回复列表 -->
+    <select id="selectCommentReplyList" resultType="com.nuaa.video.comment.entity.CommentReply">
+        SELECT *
+        FROM comment_reply
+        WHERE comment_id = #{commentId}
+          AND status = 1
+        ORDER BY create_time ASC
+    </select>
+
+    <!-- 获取评论的热门回复 -->
+    <select id="selectHotReplies" resultType="com.nuaa.video.comment.entity.CommentReply">
+        SELECT *
+        FROM comment_reply
+        WHERE comment_id = #{commentId}
+          AND status = 1
+        ORDER BY like_count DESC, create_time ASC
+        LIMIT #{limit}
+    </select>
+
+    <!-- 增加点赞数 -->
+    <update id="increaseLikeCount">
+        UPDATE comment_reply
+        SET like_count = like_count + #{count}
+        WHERE id = #{replyId}
+    </update>
+
+    <!-- 统计视频回复数 -->
+    <select id="countVideoReplies" resultType="int">
+        SELECT COUNT(1)
+        FROM comment_reply
+        WHERE video_id = #{videoId}
+          AND status = 1
+    </select>
+</mapper>
\ No newline at end of file