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优先级3:添加数据库索引,实现缓存机制,优化查询语句~#17

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优先级3:添加数据库索引,实现缓存机制,优化查询语句~#17
lcx2024 wants to merge 3 commits intomainfrom
lcx2024-api-development

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@lcx2024 lcx2024 commented Feb 28, 2026

  1. 性能优化 (3个子任务 ✓)
    • 添加数据库索引:9个索引,涵盖 videos、ad_segments、segment_votes、users、user_points 表
    • 实现缓存机制:创建 cache.js,支持 TTL 自动过期、主动删除
    • 优化查询语句:批量查询、统计查询均添加缓存,设置结果限制,优化 JOIN
  2. 数据导出功能 (2个子任务 ✓)
    • 用户导出 API:GET /api/v1/user/export,返回用户个人数据和标注记录
    • 管理员导出 API:GET /api/v1/admin/export/all,返回全系统数据,需要管理员权限验证

@lcx2024 lcx2024 marked this pull request as draft February 28, 2026 15:54
@lcx2024 lcx2024 marked this pull request as ready for review February 28, 2026 15:58
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lcx2024 commented Feb 28, 2026

server.js - 添加索引、缓存、路由注册
• auth.js - 添加管理员权限验证中间件
• stats.js - 添加缓存支持(3个 API)
• segments.js - 添加缓存优化(2个 API)
• 新建export.js - 导出功能 API
• 新建cache.js - 缓存机制实现

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可能存在以下问题,请注意:
server.js 第 145 行的 app.listen 缺少闭合的 });。把 app.get('/api/v1/segments/user'...) 错误地包裹进了第一个 app.listen 的回调函数里?

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