feat(video): 新增视频评价功能及购买状态查询

- 移除TaskController上的@Deprecated注解
- 在VideoController中新增/checkBuyStatus接口用于查询视频购买状态
- 新增VideoReviewController控制器，提供评价管理功能
- 新增MapTypeHandler用于处理Map类型与JSON字段的转换
- 在VideoMapper中增加countBuyRecordByVideoId方法查询视频购买记录
- 新增视频评价相关实体类、DTO及Mapper接口
- 实现VideoReviewService服务类，支持评价新增、分页查询、统计分析和Excel导出
- 在VideoServiceImpl中实现checkVideoBuyStatus方法
- 修改VideoMapper.xml，关联task表并查询task_params字段
- 新增VideoReviewMapper.xml配置文件，实现评价相关SQL查询

src/main/java/com/ycwl/basic/controller/VideoReviewController.java

@@ -0,0 +1,94 @@
+package com.ycwl.basic.controller;
+
+import com.github.pagehelper.PageInfo;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewAddReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewListReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewRespDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewStatisticsRespDTO;
+import com.ycwl.basic.service.VideoReviewService;
+import com.ycwl.basic.utils.ApiResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.net.URLEncoder;
+
+/**
+ * 视频评价Controller
+ * 管理端使用,通过token角色控制权限
+ */
+@Slf4j
+@RestController
+@RequestMapping("/api/video-review/v1")
+public class VideoReviewController {
+
+    @Autowired
+    private VideoReviewService videoReviewService;
+
+    /**
+     * 新增视频评价
+     *
+     * @param reqDTO 评价信息
+     * @return 评价ID
+     */
+    @PostMapping("/add")
+    public ApiResponse<Long> addReview(@RequestBody VideoReviewAddReqDTO reqDTO) {
+        log.info("新增视频评价,videoId: {}", reqDTO.getVideoId());
+        Long reviewId = videoReviewService.addReview(reqDTO);
+        return ApiResponse.success(reviewId);
+    }
+
+    /**
+     * 分页查询评价列表
+     *
+     * @param reqDTO 查询条件
+     * @return 分页结果
+     */
+    @GetMapping("/list")
+    public ApiResponse<PageInfo<VideoReviewRespDTO>> getReviewList(VideoReviewListReqDTO reqDTO) {
+        log.info("查询视频评价列表,pageNum: {}, pageSize: {}", reqDTO.getPageNum(), reqDTO.getPageSize());
+        PageInfo<VideoReviewRespDTO> pageInfo = videoReviewService.getReviewList(reqDTO);
+        return ApiResponse.success(pageInfo);
+    }
+
+    /**
+     * 获取评价统计数据
+     *
+     * @return 统计结果
+     */
+    @GetMapping("/statistics")
+    public ApiResponse<VideoReviewStatisticsRespDTO> getStatistics() {
+        log.info("获取视频评价统计数据");
+        VideoReviewStatisticsRespDTO statistics = videoReviewService.getStatistics();
+        return ApiResponse.success(statistics);
+    }
+
+    /**
+     * 导出评价数据到Excel
+     *
+     * @param reqDTO 查询条件
+     * @param response HTTP响应
+     */
+    @GetMapping("/export")
+    public void exportReviews(VideoReviewListReqDTO reqDTO, HttpServletResponse response) {
+        log.info("导出视频评价数据");
+
+        try {
+            // 设置响应头
+            String fileName = "video_reviews_" + System.currentTimeMillis() + ".xlsx";
+            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+            response.setCharacterEncoding("UTF-8");
+            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
+
+            // 导出数据
+            videoReviewService.exportReviews(reqDTO, response.getOutputStream());
+
+            response.getOutputStream().flush();
+        } catch (IOException e) {
+            log.error("导出视频评价数据失败", e);
+            throw new RuntimeException("导出失败: " + e.getMessage());
+        }
+    }
+}

src/main/java/com/ycwl/basic/controller/pc/TaskController.java

@@ -13,7 +13,6 @@ import org.springframework.web.bind.annotation.*;
  */
 @RestController
 @RequestMapping("/api/task/v1")
-@Deprecated
 // 任务列表管理
 public class TaskController {
 

src/main/java/com/ycwl/basic/controller/pc/VideoController.java

@@ -40,4 +40,16 @@ public class VideoController {
         return videoService.getById(id);
     }
 
+    /**
+     * 查询视频是否被购买
+     *
+     * @param videoId 视频ID
+     * @return 是否已购买
+     */
+    @GetMapping("/checkBuyStatus")
+    public ApiResponse<Boolean> checkBuyStatus(@RequestParam("videoId") Long videoId) {
+        Boolean isBuy = videoService.checkVideoBuyStatus(videoId);
+        return ApiResponse.success(isBuy);
+    }
+
 }

src/main/java/com/ycwl/basic/handler/MapTypeHandler.java

@@ -0,0 +1,70 @@
+package com.ycwl.basic.handler;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.ibatis.type.BaseTypeHandler;
+import org.apache.ibatis.type.JdbcType;
+
+import java.sql.CallableStatement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Map类型的TypeHandler,用于处理JSON字段与Map<String, Integer>的互转
+ * 主要用于机位快速评价等自由格式的JSON存储
+ */
+@Slf4j
+public class MapTypeHandler extends BaseTypeHandler<Map<String, Integer>> {
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+    private final TypeReference<Map<String, Integer>> typeReference = new TypeReference<Map<String, Integer>>() {};
+
+    @Override
+    public void setNonNullParameter(PreparedStatement ps, int i, Map<String, Integer> parameter, JdbcType jdbcType) throws SQLException {
+        try {
+            String json = objectMapper.writeValueAsString(parameter);
+            ps.setString(i, json);
+        } catch (JsonProcessingException e) {
+            log.error("序列化Map为JSON失败", e);
+            throw new SQLException("序列化Map为JSON失败", e);
+        }
+    }
+
+    @Override
+    public Map<String, Integer> getNullableResult(ResultSet rs, String columnName) throws SQLException {
+        String json = rs.getString(columnName);
+        return parseJson(json);
+    }
+
+    @Override
+    public Map<String, Integer> getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
+        String json = rs.getString(columnIndex);
+        return parseJson(json);
+    }
+
+    @Override
+    public Map<String, Integer> getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
+        String json = cs.getString(columnIndex);
+        return parseJson(json);
+    }
+
+    /**
+     * 解析JSON字符串为Map
+     */
+    private Map<String, Integer> parseJson(String json) {
+        if (json == null || json.trim().isEmpty()) {
+            return new HashMap<>();
+        }
+        try {
+            return objectMapper.readValue(json, typeReference);
+        } catch (JsonProcessingException e) {
+            log.error("解析JSON为Map失败, json={}", json, e);
+            return new HashMap<>();
+        }
+    }
+}

src/main/java/com/ycwl/basic/mapper/VideoMapper.java

@@ -56,6 +56,13 @@ public interface VideoMapper {
     int deleteNotBuyFaceRelations(Long userId, Long faceId);
 
     int deleteUselessVideo();
-    
+
     int updateMemberIdByFaceId(Long faceId, Long memberId);
+
+    /**
+     * 查询指定视频是否存在已购买记录
+     * @param videoId 视频ID
+     * @return 已购买记录数量
+     */
+    int countBuyRecordByVideoId(Long videoId);
 }

src/main/java/com/ycwl/basic/mapper/VideoReviewMapper.java

@@ -0,0 +1,71 @@
+package com.ycwl.basic.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewListReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewRespDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewStatisticsRespDTO;
+import com.ycwl.basic.model.pc.videoreview.entity.VideoReviewEntity;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 视频评价Mapper接口
+ */
+@Mapper
+public interface VideoReviewMapper extends BaseMapper<VideoReviewEntity> {
+
+    /**
+     * 分页查询评价列表(带关联查询)
+     *
+     * @param reqDTO 查询条件
+     * @return 评价列表
+     */
+    List<VideoReviewRespDTO> selectReviewList(VideoReviewListReqDTO reqDTO);
+
+    /**
+     * 统计总评价数
+     *
+     * @return 总数
+     */
+    Long countTotal();
+
+    /**
+     * 计算平均评分
+     *
+     * @return 平均评分
+     */
+    Double calculateAverageRating();
+
+    /**
+     * 统计评分分布
+     *
+     * @return key: 评分, value: 数量
+     */
+    List<Map<String, Object>> countRatingDistribution();
+
+    /**
+     * 统计最近N天的评价趋势
+     *
+     * @param days 天数
+     * @return key: 日期, value: 数量
+     */
+    List<Map<String, Object>> countRecentTrend(@Param("days") int days);
+
+    /**
+     * 统计景区评价排行(前N名)
+     *
+     * @param limit 限制数量
+     * @return 景区排行列表
+     */
+    List<VideoReviewStatisticsRespDTO.ScenicReviewRank> countScenicRank(@Param("limit") int limit);
+
+    /**
+     * 查询所有机位评价数据(用于后端计算平均值)
+     *
+     * @return 机位评价列表
+     */
+    List<Map<String, Integer>> selectAllCameraPositionRatings();
+}

src/main/java/com/ycwl/basic/model/pc/video/resp/VideoRespVO.java

@@ -45,6 +45,10 @@ public class VideoRespVO {
      */
     // 任务id
     private Long taskId;
+    /**
+     * 任务参数，JSON字符串
+     */
+    private String taskParams;
     /**
      * 执行任务的机器ID，render_worker.id
      */

src/main/java/com/ycwl/basic/model/pc/videoreview/dto/VideoReviewAddReqDTO.java

@@ -0,0 +1,33 @@
+package com.ycwl.basic.model.pc.videoreview.dto;
+
+import lombok.Data;
+
+import java.util.Map;
+
+/**
+ * 新增视频评价请求DTO
+ */
+@Data
+public class VideoReviewAddReqDTO {
+
+    /**
+     * 视频ID(必填)
+     */
+    private Long videoId;
+
+    /**
+     * 购买评分 1-5(必填)
+     */
+    private Integer rating;
+
+    /**
+     * 文字评价内容(可选)
+     */
+    private String content;
+
+    /**
+     * 机位快速评价JSON(可选)
+     * 格式: {"角度":5,"清晰度":4,"构图":5}
+     */
+    private Map<String, Integer> cameraPositionRating;
+}

src/main/java/com/ycwl/basic/model/pc/videoreview/dto/VideoReviewListReqDTO.java

@@ -0,0 +1,77 @@
+package com.ycwl.basic.model.pc.videoreview.dto;
+
+import lombok.Data;
+
+/**
+ * 视频评价列表查询请求DTO
+ */
+@Data
+public class VideoReviewListReqDTO {
+
+    /**
+     * 视频ID(可选)
+     */
+    private Long videoId;
+
+    /**
+     * 景区ID(可选)
+     */
+    private Long scenicId;
+
+    /**
+     * 评价人ID(可选)
+     */
+    private Long creator;
+
+    /**
+     * 评分(可选,精确匹配)
+     */
+    private Integer rating;
+
+    /**
+     * 最小评分(可选,范围查询)
+     */
+    private Integer minRating;
+
+    /**
+     * 最大评分(可选,范围查询)
+     */
+    private Integer maxRating;
+
+    /**
+     * 开始时间(可选,格式: yyyy-MM-dd HH:mm:ss)
+     */
+    private String startTime;
+
+    /**
+     * 结束时间(可选,格式: yyyy-MM-dd HH:mm:ss)
+     */
+    private String endTime;
+
+    /**
+     * 关键词搜索(可选,搜索评价内容)
+     */
+    private String keyword;
+
+    /**
+     * 页码(必填,默认1)
+     */
+    private Integer pageNum = 1;
+
+    /**
+     * 每页数量(必填,默认10)
+     */
+    private Integer pageSize = 10;
+
+    /**
+     * 排序字段(可选,默认create_time)
+     * 可选值: create_time, rating, update_time
+     */
+    private String orderBy = "create_time";
+
+    /**
+     * 排序方向(可选,默认DESC)
+     * 可选值: ASC, DESC
+     */
+    private String orderDirection = "DESC";
+}

src/main/java/com/ycwl/basic/model/pc/videoreview/dto/VideoReviewRespDTO.java

@@ -0,0 +1,76 @@
+package com.ycwl.basic.model.pc.videoreview.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Data;
+
+import java.util.Date;
+import java.util.Map;
+
+/**
+ * 视频评价详情响应DTO
+ */
+@Data
+public class VideoReviewRespDTO {
+
+    /**
+     * 评价ID
+     */
+    private Long id;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 视频URL(关联查询)
+     */
+    private String videoUrl;
+
+    /**
+     * 景区ID
+     */
+    private Long scenicId;
+
+    /**
+     * 景区名称(关联查询)
+     */
+    private String scenicName;
+
+    /**
+     * 评价人ID(管理员ID)
+     */
+    private Long creator;
+
+    /**
+     * 评价人名称(关联查询)
+     */
+    private String creatorName;
+
+    /**
+     * 购买评分 1-5
+     */
+    private Integer rating;
+
+    /**
+     * 文字评价内容
+     */
+    private String content;
+
+    /**
+     * 机位快速评价JSON
+     */
+    private Map<String, Integer> cameraPositionRating;
+
+    /**
+     * 创建时间
+     */
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
+    private Date createTime;
+
+    /**
+     * 更新时间
+     */
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
+    private Date updateTime;
+}

src/main/java/com/ycwl/basic/model/pc/videoreview/dto/VideoReviewStatisticsRespDTO.java

@@ -0,0 +1,73 @@
+package com.ycwl.basic.model.pc.videoreview.dto;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 视频评价统计分析响应DTO
+ */
+@Data
+public class VideoReviewStatisticsRespDTO {
+
+    /**
+     * 总评价数
+     */
+    private Long totalCount;
+
+    /**
+     * 平均评分
+     */
+    private BigDecimal averageRating;
+
+    /**
+     * 评分分布
+     * key: 评分(1-5), value: 该评分的评价数量
+     */
+    private Map<Integer, Long> ratingDistribution;
+
+    /**
+     * 最近7天评价趋势
+     * key: 日期(yyyy-MM-dd), value: 该日期的评价数量
+     */
+    private Map<String, Long> recentTrend;
+
+    /**
+     * 景区评价排行(前10)
+     */
+    private List<ScenicReviewRank> scenicRankList;
+
+    /**
+     * 机位评价维度统计
+     * key: 维度名称, value: 平均分
+     */
+    private Map<String, BigDecimal> cameraPositionAverage;
+
+    /**
+     * 景区评价排行内部类
+     */
+    @Data
+    public static class ScenicReviewRank {
+        /**
+         * 景区ID
+         */
+        private Long scenicId;
+
+        /**
+         * 景区名称
+         */
+        private String scenicName;
+
+        /**
+         * 评价数量
+         */
+        private Long reviewCount;
+
+        /**
+         * 平均评分
+         */
+        private BigDecimal averageRating;
+    }
+}

src/main/java/com/ycwl/basic/model/pc/videoreview/entity/VideoReviewEntity.java

@@ -0,0 +1,68 @@
+package com.ycwl.basic.model.pc.videoreview.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 com.ycwl.basic.handler.MapTypeHandler;
+import lombok.Data;
+import org.apache.ibatis.type.JdbcType;
+
+import java.util.Date;
+import java.util.Map;
+
+/**
+ * 视频评价实体类
+ */
+@Data
+@TableName("video_review")
+public class VideoReviewEntity {
+
+    /**
+     * 主键ID
+     */
+    @TableId(type = IdType.AUTO)
+    private Long id;
+
+    /**
+     * 视频ID
+     */
+    private Long videoId;
+
+    /**
+     * 景区ID
+     */
+    private Long scenicId;
+
+    /**
+     * 评价人ID(管理员ID)
+     */
+    private Long creator;
+
+    /**
+     * 购买评分 1-5
+     */
+    private Integer rating;
+
+    /**
+     * 文字评价内容
+     */
+    private String content;
+
+    /**
+     * 机位快速评价JSON
+     * 格式: {"角度":5,"清晰度":4,"构图":5}
+     */
+    @TableField(typeHandler = MapTypeHandler.class, jdbcType = JdbcType.VARCHAR)
+    private Map<String, Integer> cameraPositionRating;
+
+    /**
+     * 创建时间
+     */
+    private Date createTime;
+
+    /**
+     * 更新时间
+     */
+    private Date updateTime;
+}

src/main/java/com/ycwl/basic/service/VideoReviewService.java

@@ -0,0 +1,48 @@
+package com.ycwl.basic.service;
+
+import com.github.pagehelper.PageInfo;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewAddReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewListReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewRespDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewStatisticsRespDTO;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * 视频评价Service接口
+ */
+public interface VideoReviewService {
+
+    /**
+     * 新增视频评价
+     *
+     * @param reqDTO 评价信息
+     * @return 评价ID
+     */
+    Long addReview(VideoReviewAddReqDTO reqDTO);
+
+    /**
+     * 分页查询评价列表
+     *
+     * @param reqDTO 查询条件
+     * @return 分页结果
+     */
+    PageInfo<VideoReviewRespDTO> getReviewList(VideoReviewListReqDTO reqDTO);
+
+    /**
+     * 获取评价统计数据
+     *
+     * @return 统计结果
+     */
+    VideoReviewStatisticsRespDTO getStatistics();
+
+    /**
+     * 导出评价数据到Excel
+     *
+     * @param reqDTO 查询条件
+     * @param outputStream 输出流
+     * @throws IOException IO异常
+     */
+    void exportReviews(VideoReviewListReqDTO reqDTO, OutputStream outputStream) throws IOException;
+}

src/main/java/com/ycwl/basic/service/impl/VideoReviewServiceImpl.java

@@ -0,0 +1,244 @@
+package com.ycwl.basic.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.ycwl.basic.constant.BaseContextHandler;
+import com.ycwl.basic.exception.BizException;
+import com.ycwl.basic.mapper.VideoMapper;
+import com.ycwl.basic.mapper.VideoReviewMapper;
+import com.ycwl.basic.model.pc.video.entity.VideoEntity;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewAddReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewListReqDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewRespDTO;
+import com.ycwl.basic.model.pc.videoreview.dto.VideoReviewStatisticsRespDTO;
+import com.ycwl.basic.model.pc.videoreview.entity.VideoReviewEntity;
+import com.ycwl.basic.service.VideoReviewService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * 视频评价Service实现类
+ */
+@Slf4j
+@Service
+public class VideoReviewServiceImpl implements VideoReviewService {
+
+    @Autowired
+    private VideoReviewMapper videoReviewMapper;
+
+    @Autowired
+    private VideoMapper videoMapper;
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Long addReview(VideoReviewAddReqDTO reqDTO) {
+        // 1. 参数校验
+        if (reqDTO.getVideoId() == null) {
+            throw new BizException("视频ID不能为空");
+        }
+        if (reqDTO.getRating() == null || reqDTO.getRating() < 1 || reqDTO.getRating() > 5) {
+            throw new BizException("评分必须在1-5之间");
+        }
+
+        // 2. 查询视频信息,获取景区ID
+        VideoEntity video = videoMapper.selectById(reqDTO.getVideoId());
+        if (video == null) {
+            throw new BizException("视频不存在");
+        }
+
+        // 3. 获取当前登录用户(管理员)
+        String userIdStr = BaseContextHandler.getUserId();
+        if (userIdStr == null || userIdStr.isEmpty()) {
+            throw new BizException("未登录或登录已过期");
+        }
+        Long creator = Long.valueOf(userIdStr);
+
+        // 4. 构建评价实体
+        VideoReviewEntity entity = new VideoReviewEntity();
+        entity.setVideoId(reqDTO.getVideoId());
+        entity.setScenicId(video.getScenicId());
+        entity.setCreator(creator);
+        entity.setRating(reqDTO.getRating());
+        entity.setContent(reqDTO.getContent());
+        entity.setCameraPositionRating(reqDTO.getCameraPositionRating());
+
+        // 5. 插入数据库
+        videoReviewMapper.insert(entity);
+
+        log.info("管理员[{}]对视频[{}]添加评价成功,评价ID: {}", creator, reqDTO.getVideoId(), entity.getId());
+        return entity.getId();
+    }
+
+    @Override
+    public PageInfo<VideoReviewRespDTO> getReviewList(VideoReviewListReqDTO reqDTO) {
+        // 设置分页参数
+        PageHelper.startPage(reqDTO.getPageNum(), reqDTO.getPageSize());
+
+        // 查询列表
+        List<VideoReviewRespDTO> list = videoReviewMapper.selectReviewList(reqDTO);
+
+        // 封装分页结果
+        return new PageInfo<>(list);
+    }
+
+    @Override
+    public VideoReviewStatisticsRespDTO getStatistics() {
+        VideoReviewStatisticsRespDTO statistics = new VideoReviewStatisticsRespDTO();
+
+        // 1. 总评价数
+        Long totalCount = videoReviewMapper.countTotal();
+        statistics.setTotalCount(totalCount);
+
+        // 2. 平均评分
+        Double avgRating = videoReviewMapper.calculateAverageRating();
+        if (avgRating != null) {
+            statistics.setAverageRating(BigDecimal.valueOf(avgRating).setScale(2, RoundingMode.HALF_UP));
+        } else {
+            statistics.setAverageRating(BigDecimal.ZERO);
+        }
+
+        // 3. 评分分布
+        List<Map<String, Object>> ratingDistList = videoReviewMapper.countRatingDistribution();
+        Map<Integer, Long> ratingDistribution = new HashMap<>();
+        for (Map<String, Object> item : ratingDistList) {
+            Integer rating = (Integer) item.get("ratingValue");
+            Long count = (Long) item.get("count");
+            ratingDistribution.put(rating, count);
+        }
+        statistics.setRatingDistribution(ratingDistribution);
+
+        // 4. 最近7天趋势
+        List<Map<String, Object>> trendList = videoReviewMapper.countRecentTrend(7);
+        Map<String, Long> recentTrend = new LinkedHashMap<>();
+        for (Map<String, Object> item : trendList) {
+            String date = (String) item.get("dateStr");
+            Long count = (Long) item.get("count");
+            recentTrend.put(date, count);
+        }
+        statistics.setRecentTrend(recentTrend);
+
+        // 5. 景区排行(前10)
+        List<VideoReviewStatisticsRespDTO.ScenicReviewRank> scenicRankList = videoReviewMapper.countScenicRank(10);
+        statistics.setScenicRankList(scenicRankList);
+
+        // 6. 机位评价维度平均值
+        Map<String, BigDecimal> cameraPositionAverage = calculateCameraPositionAverage();
+        statistics.setCameraPositionAverage(cameraPositionAverage);
+
+        return statistics;
+    }
+
+    @Override
+    public void exportReviews(VideoReviewListReqDTO reqDTO, OutputStream outputStream) throws IOException {
+        // 1. 查询所有数据(不分页)
+        reqDTO.setPageNum(1);
+        reqDTO.setPageSize(Integer.MAX_VALUE);
+        List<VideoReviewRespDTO> list = videoReviewMapper.selectReviewList(reqDTO);
+
+        // 2. 创建Excel工作簿
+        Workbook workbook = new XSSFWorkbook();
+        Sheet sheet = workbook.createSheet("视频评价数据");
+
+        // 3. 创建标题行样式
+        CellStyle headerStyle = workbook.createCellStyle();
+        Font headerFont = workbook.createFont();
+        headerFont.setBold(true);
+        headerStyle.setFont(headerFont);
+        headerStyle.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
+        headerStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
+
+        // 4. 创建标题行
+        Row headerRow = sheet.createRow(0);
+        String[] headers = {"评价ID", "视频ID", "景区ID", "景区名称", "评价人ID", "评价人名称",
+                "评分", "文字评价", "机位评价", "创建时间", "更新时间"};
+        for (int i = 0; i < headers.length; i++) {
+            Cell cell = headerRow.createCell(i);
+            cell.setCellValue(headers[i]);
+            cell.setCellStyle(headerStyle);
+        }
+
+        // 5. 填充数据
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        int rowNum = 1;
+        for (VideoReviewRespDTO review : list) {
+            Row row = sheet.createRow(rowNum++);
+            row.createCell(0).setCellValue(review.getId());
+            row.createCell(1).setCellValue(review.getVideoId());
+            row.createCell(2).setCellValue(review.getScenicId());
+            row.createCell(3).setCellValue(review.getScenicName());
+            row.createCell(4).setCellValue(review.getCreator());
+            row.createCell(5).setCellValue(review.getCreatorName());
+            row.createCell(6).setCellValue(review.getRating());
+            row.createCell(7).setCellValue(review.getContent());
+
+            // 机位评价JSON转字符串
+            try {
+                String cameraRatingJson = review.getCameraPositionRating() != null ?
+                        objectMapper.writeValueAsString(review.getCameraPositionRating()) : "";
+                row.createCell(8).setCellValue(cameraRatingJson);
+            } catch (Exception e) {
+                row.createCell(8).setCellValue("");
+            }
+
+            row.createCell(9).setCellValue(review.getCreateTime() != null ? sdf.format(review.getCreateTime()) : "");
+            row.createCell(10).setCellValue(review.getUpdateTime() != null ? sdf.format(review.getUpdateTime()) : "");
+        }
+
+        // 6. 自动调整列宽
+        for (int i = 0; i < headers.length; i++) {
+            sheet.autoSizeColumn(i);
+        }
+
+        // 7. 写入输出流
+        workbook.write(outputStream);
+        workbook.close();
+
+        log.info("导出视频评价数据成功,共{}条", list.size());
+    }
+
+    /**
+     * 计算机位评价各维度的平均值
+     */
+    private Map<String, BigDecimal> calculateCameraPositionAverage() {
+        List<Map<String, Integer>> allRatings = videoReviewMapper.selectAllCameraPositionRatings();
+
+        if (allRatings == null || allRatings.isEmpty()) {
+            return new HashMap<>();
+        }
+
+        // 统计各维度的总分和次数
+        Map<String, List<Integer>> dimensionScores = new HashMap<>();
+        for (Map<String, Integer> rating : allRatings) {
+            if (rating == null) continue;
+            for (Map.Entry<String, Integer> entry : rating.entrySet()) {
+                dimensionScores.computeIfAbsent(entry.getKey(), k -> new ArrayList<>()).add(entry.getValue());
+            }
+        }
+
+        // 计算平均值
+        Map<String, BigDecimal> result = new HashMap<>();
+        for (Map.Entry<String, List<Integer>> entry : dimensionScores.entrySet()) {
+            double avg = entry.getValue().stream().mapToInt(Integer::intValue).average().orElse(0.0);
+            result.put(entry.getKey(), BigDecimal.valueOf(avg).setScale(2, RoundingMode.HALF_UP));
+        }
+
+        return result;
+    }
+}

src/main/java/com/ycwl/basic/service/pc/VideoService.java

@@ -17,5 +17,12 @@ public interface VideoService {
     ApiResponse<List<VideoRespVO>> list(VideoReqQuery videoReqQuery);
     ApiResponse<VideoRespVO> getById(Long id);
 
+    /**
+     * 查询视频是否被购买
+     *
+     * @param videoId 视频ID
+     * @return 是否已购买 (true-已购买, false-未购买)
+     */
+    Boolean checkVideoBuyStatus(Long videoId);
 
 }

src/main/java/com/ycwl/basic/service/pc/impl/VideoServiceImpl.java

@@ -2,7 +2,10 @@ package com.ycwl.basic.service.pc.impl;
 
 import com.github.pagehelper.PageHelper;
 import com.github.pagehelper.PageInfo;
+import com.ycwl.basic.exception.BaseException;
+import com.ycwl.basic.exception.BizException;
 import com.ycwl.basic.mapper.VideoMapper;
+import com.ycwl.basic.model.pc.video.entity.VideoEntity;
 import com.ycwl.basic.model.pc.video.req.VideoReqQuery;
 import com.ycwl.basic.model.pc.video.resp.VideoRespVO;
 import com.ycwl.basic.repository.ScenicRepository;
@@ -79,4 +82,12 @@ public class VideoServiceImpl implements VideoService {
         return ApiResponse.success(videoMapper.getById(id));
     }
 
+    @Override
+    public Boolean checkVideoBuyStatus(Long videoId) {
+        // 查询 member_video 表中是否存在该视频的已购买记录
+        int count = videoMapper.countBuyRecordByVideoId(videoId);
+        // count > 0 表示存在已购买记录
+        return count > 0;
+    }
+
 }