From 63056170cc122336ddee96ca9734a7d66ca9ed1f Mon Sep 17 00:00:00 2001 From: cc <94575594@qq.com> Date: Thu, 16 Apr 2026 14:45:38 +0800 Subject: [PATCH] =?UTF-8?q?docs(deploy):=20=E7=AE=80=E5=8C=96=E5=92=8C?= =?UTF-8?q?=E4=BC=98=E5=8C=96=E9=83=A8=E7=BD=B2=E6=96=87=E6=A1=A3=E7=BB=93?= =?UTF-8?q?=E6=9E=84=E4=B8=8E=E5=86=85=E5=AE=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - 精简环境准备部分，去除后端和 FFmpeg 安装说明，聚焦前端依赖安装 - 调整关键配置说明，删除后端相关代理和跨域配置，保留前端代理重点 - 优化部署方案，移除复杂的后端服务部署和代理设置，仅保留纯前端部署示例 - 更新部署验证清单，聚焦前端功能和路由验证 - 精简常见问题，去除后端服务相关故障信息 - 删除后端服务、Docker、性能监控等章节，文档更聚焦轻量部署 - 更新页面路由清单，保持核心页面及功能介绍 --- DEPLOY.md | 462 +------- server/README.md | 73 -- server/index.js | 33 - server/package-lock.json | 1020 ---------------- server/package.json | 16 - server/routes/video.js | 284 ----- src/config/index.js | 72 -- src/router/index.js | 6 - src/utils/videoComposer.js | 139 --- src/views/HomePage.vue | 8 - src/views/QuestionExplanation.vue | 1847 ----------------------------- vite.config.js | 5 - 12 files changed, 31 insertions(+), 3934 deletions(-) delete mode 100644 server/README.md delete mode 100644 server/index.js delete mode 100644 server/package-lock.json delete mode 100644 server/package.json delete mode 100644 server/routes/video.js delete mode 100644 src/utils/videoComposer.js delete mode 100644 src/views/QuestionExplanation.vue diff --git a/DEPLOY.md b/DEPLOY.md index d064fa5..559fbf6 100644 --- a/DEPLOY.md +++ b/DEPLOY.md @@ -3,12 +3,8 @@ ## 项目概述 - **项目名称**：AI 英语学习辅助平台 -- **技术栈**： - - 前端：Vue 3 + Vite + Vue Router（History 模式） - - 后端：Express.js + FFmpeg（视频合成服务） -- **项目结构**： - - 前端：纯静态文件（HTML / CSS / JS），可部署到任意静态托管服务 - - 后端：Node.js 服务，需要 FFmpeg 环境，提供视频合成 API +- **技术栈**：Vue 3 + Vite + Vue Router（History 模式） +- **项目结构**：纯前端静态文件（HTML / CSS / JS），可部署到任意静态托管服务 --- @@ -18,61 +14,21 @@ | 工具 | 版本要求 | 用途 | |------|----------|------| -| Node.js | >= 18.x（推荐 20.x LTS） | 前端构建 & 后端服务运行 | +| Node.js | >= 18.x（推荐 20.x LTS） | 前端构建 | | npm | >= 9.x | 包管理器 | -| FFmpeg | 最新稳定版 | 后端视频合成（仅后端服务需要） | ```bash # 检查 Node.js 和 npm 版本 node -v npm -v - -# 检查 FFmpeg 是否已安装（后端服务需要） -ffmpeg -version ``` -### 1.2 安装 FFmpeg（后端服务必需） - -#### Windows - -1. 下载 FFmpeg: https://www.gyan.dev/ffmpeg/builds/ -2. 解压到 `C:\ffmpeg` -3. 添加 `C:\ffmpeg\bin` 到系统环境变量 PATH -4. 验证安装： - ```bash - ffmpeg -version - ``` - -#### macOS - -```bash -# 使用 Homebrew 安装 -brew install ffmpeg - -# 验证安装 -ffmpeg -version -``` - -#### Linux (Ubuntu/Debian) - -```bash -# 安装 FFmpeg -sudo apt update && sudo apt install ffmpeg - -# 验证安装 -ffmpeg -version -``` - -### 1.3 安装依赖 +### 1.2 安装依赖 ```bash # 安装前端依赖 cd AI_Demo npm install - -# 安装后端依赖 -cd server -npm install ``` --- @@ -96,7 +52,7 @@ npm install ### 2.2 跨域响应头要求（重要） -项目使用了 `@ffmpeg/ffmpeg`（WebAssembly），需要服务器返回以下响应头，否则视频讲解功能将无法运行： +项目使用了 `@ffmpeg/ffmpeg`（WebAssembly），需要服务器返回以下响应头： ``` Cross-Origin-Opener-Policy: same-origin @@ -111,14 +67,11 @@ Cross-Origin-Embedder-Policy: require-corp | 前端请求路径前缀 | 代理目标 | 用途 | 备注 | |-----------------|----------|------|------| -| `/api/video` | 后端服务（默认 http://localhost:3001） | 视频合成 | **无需跨域代理**，直接访问后端服务 | | `/tts-api` | `https://openspeech.bytedance.com` | 豆包 TTS 语音合成 | 需要反向代理 | | `/ark-api` | `https://ark.cn-beijing.volces.com` | 火山引擎 Ark 大模型 | 需要反向代理 | | `/dashscope-api` | `https://dashscope.aliyuncs.com` | 阿里云百炼 | 需要反向代理 | | `/asr-ws` | `wss://openspeech.bytedance.com` | 豆包 ASR WebSocket | 需要反向代理+注入鉴权 Header | -> **后端服务说明**：`/api/video` 接口由本项目的后端服务（`server/`）提供，不需要跨域代理，但需要确保后端服务正常运行。 - > **ASR WebSocket 特殊说明**：`/asr-ws` 代理需要在代理层注入以下鉴权 Header（浏览器原生 WebSocket 不支持自定义 Header）： > - `X-Api-App-Key` > - `X-Api-Access-Key` @@ -152,22 +105,6 @@ dist/ npm run preview ``` -### 3.2 后端服务准备 - -后端服务无需构建，直接使用源码运行即可。确保： - -1. 已安装 FFmpeg（见 1.2 节） -2. 已安装依赖： - ```bash - cd server - npm install - ``` -3. 测试服务是否正常： - ```bash - npm start - ``` - 访问 http://localhost:3001/health 应返回 `{"status":"ok"}` - --- ## 四、部署方案 @@ -194,7 +131,7 @@ server { root /var/www/ai-demo; index index.html; - # 跨域响应头（FFmpeg WASM 必需） + # 跨域响应头 add_header Cross-Origin-Opener-Policy "same-origin" always; add_header Cross-Origin-Embedder-Policy "require-corp" always; @@ -203,26 +140,6 @@ server { try_files $uri $uri/ /index.html; } - # 后端视频合成服务代理 - location /api/video/ { - proxy_pass http://localhost:3001/api/video/; - proxy_http_version 1.1; - proxy_set_header Upgrade $http_upgrade; - proxy_set_header Connection 'upgrade'; - proxy_set_header Host $host; - proxy_set_header X-Real-IP $remote_addr; - proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; - proxy_set_header X-Forwarded-Proto $scheme; - - # 增大请求体大小限制（视频合成可能需要） - client_max_body_size 100m; - - # 增加超时时间（视频合成耗时较长） - proxy_connect_timeout 300; - proxy_send_timeout 300; - proxy_read_timeout 300; - } - # 代理：豆包 TTS location /tts-api/ { proxy_pass https://openspeech.bytedance.com/; @@ -282,34 +199,7 @@ nginx -t systemctl reload nginx ``` -#### 4.A.4 启动后端服务 - -后端服务需要使用进程管理器（如 PM2）保持持续运行： - -```bash -# 安装 PM2（如果未安装） -npm install -g pm2 - -# 进入后端目录 -cd /path/to/AI_Demo/server - -# 启动后端服务 -pm2 start index.js --name ai-demo-server - -# 查看服务状态 -pm2 status - -# 查看日志 -pm2 logs ai-demo-server - -# 设置开机自启 -pm2 startup -pm2 save -``` - -后端服务将在 `http://localhost:3001` 启动，Nginx 会将 `/api/video` 请求代理到该端口。 - -#### 4.A.5 配置 HTTPS（推荐） +#### 4.A.4 配置 HTTPS（推荐） ```bash # 使用 Certbot 申请免费 SSL 证书 @@ -319,32 +209,9 @@ certbot --nginx -d your-domain.com --- -### 方案 B：Node.js + Express 部署（前后端分离） +### 方案 B：Node.js + Express 部署 -适用于需要在 Node.js 环境中自定义响应头的场景，前后端独立部署。 - -#### 4.B.1 后端服务部署 - -后端服务已在 `server/` 目录中，需要独立运行： - -```bash -# 进入后端目录 -cd server - -# 安装依赖 -npm install - -# 使用 PM2 启动服务 -pm2 start index.js --name ai-demo-backend - -# 设置开机自启 -pm2 startup -pm2 save -``` - -后端服务将在 `http://localhost:3001` 启动。 - -#### 4.B.2 前端静态服务器 +适用于需要在 Node.js 环境中自定义响应头的场景。 创建前端静态服务器文件 `frontend-server.js`（项目根目录）： @@ -359,20 +226,6 @@ const __dirname = path.dirname(fileURLToPath(import.meta.url)) const app = express() const PORT = process.env.PORT || 3000 -// 全局注入 COOP/COEP 响应头（FFmpeg WASM 必需） -app.use((req, res, next) => { - res.setHeader('Cross-Origin-Opener-Policy', 'same-origin') - res.setHeader('Cross-Origin-Embedder-Policy', 'require-corp') - next() -}) - -// 后端视频合成服务代理 -app.use('/api/video', createProxyMiddleware({ - target: 'http://localhost:3001', - changeOrigin: true, - timeout: 300000, // 5分钟超时 -})) - // 第三方 API 代理 app.use('/tts-api', createProxyMiddleware({ target: 'https://openspeech.bytedance.com', @@ -417,7 +270,6 @@ app.get('*', (req, res) => { app.listen(PORT, () => { console.log(`Frontend server running at http://localhost:${PORT}`) - console.log(`Backend API: http://localhost:3001`) }) ``` @@ -441,16 +293,14 @@ pm2 status pm2 save ``` -现在有两个服务运行： -- **前端服务**：`http://localhost:3000`（提供静态文件和代理） -- **后端服务**：`http://localhost:3001`（视频合成 API） +前端服务运行在 `http://localhost:3000`（提供静态文件和代理） --- ### 方案 C：EdgeOne Pages / Vercel / Netlify（纯静态托管） > **注意**：此类平台**不支持服务端代理**，`/tts-api`、`/ark-api`、`/dashscope-api`、`/asr-ws` 等接口将因跨域或缺少鉴权 Header 而失败。 -> 建议仅用于演示或配合独立后端服务使用。 +> 建议仅用于演示。 #### 部署步骤（以 Vercel 为例） @@ -478,16 +328,7 @@ pm2 save ## 五、部署后验证清单 -### 5.1 后端服务验证 - -| 验证项 | 检查方法 | 预期结果 | -|--------|----------|----------| -| 后端服务运行 | `pm2 status` 或 `ps aux \| grep node` | 显示 ai-demo-server 进程 | -| 健康检查接口 | `curl http://localhost:3001/health` | 返回 `{"status":"ok"}` | -| FFmpeg 可用 | `curl http://localhost:3001/api/video/health` | 返回 `{"status":"ok","message":"视频合成服务正常运行"}` | -| 后端日志无错误 | `pm2 logs ai-demo-server` | 无报错信息 | - -### 5.2 前端服务验证 +### 5.1 部署验证 | 验证项 | 检查方法 | |--------|----------| @@ -500,18 +341,11 @@ pm2 save | 试题分析 | 进入试题分析页，上传图片或输入题目 | | 单词拼写练习 | 进入单词拼写页，测试拼写检测功能 | -### 5.3 视频合成功能验证 - -| 验证项 | 检查方法 | -|--------|----------| -| 前端可访问后端 | 浏览器 Network 标签查看 `/api/video/health` 请求 | -| 视频合成接口 | 在试题分析页生成视频讲解，检查是否能正常下载 | - --- ## 六、常见问题排查 -### Q1：视频讲解页面报错 `SharedArrayBuffer is not defined` +### Q1：页面报错 `SharedArrayBuffer is not defined` **原因**：服务器未返回 `Cross-Origin-Opener-Policy: same-origin` 和 `Cross-Origin-Embedder-Policy: require-corp` 响应头。 **解决**：参考第二节 2.2，在 Nginx 或 Node.js 服务器中添加对应响应头。 @@ -531,31 +365,9 @@ pm2 save **原因**：代理未注入豆包 ASR 鉴权 Header，或 WebSocket 升级配置缺失。 **解决**：确认 Nginx 配置中包含 `proxy_set_header Upgrade $http_upgrade;` 及三个 `X-Api-*` Header。 -### Q5：视频合成失败或接口 504 超时 +### Q5：构建时内存不足 -**原因**：视频合成耗时较长，默认代理超时时间不足，或后端服务未启动。 -**解决**： -1. 检查后端服务是否运行：`pm2 status` 或 `curl http://localhost:3001/health` -2. 检查 FFmpeg 是否安装：`ffmpeg -version` -3. 增加 Nginx 超时时间（已在配置中设置为 300 秒） -4. 查看后端日志：`pm2 logs ai-demo-server` - -### Q6：后端服务启动失败：`FFmpeg not found` - -**原因**：系统未安装 FFmpeg 或未添加到环境变量。 -**解决**：参考第一节 1.2，安装 FFmpeg 并配置环境变量。 - -### Q7：视频合成返回 `Internal server error` - -**原因**：可能是 FFmpeg 处理错误、临时目录权限问题或资源下载失败。 -**解决**： -1. 查看后端详细日志：`pm2 logs ai-demo-server` -2. 检查 `server/temp/` 目录权限：`ls -la server/temp` -3. 测试后端健康检查：`curl http://localhost:3001/api/video/health` - -### Q8：构建时内存不足 - -**原因**：项目包含 FFmpeg WASM，构建产物较大。 +**原因**：项目依赖较多，构建产物较大。 **解决**： ```bash @@ -579,7 +391,6 @@ NODE_OPTIONS=--max-old-space-size=4096 npm run build | `/question-generator` | 题目生成 | 自动生成练习题 | | `/question-variant` | 题目变体 | 生成相似题目变体 | | `/audio-to-text` | 语音转文字 | 音频转文本功能 | -| `/question-explanation` | 视频讲解 | 视频合成讲解（使用后端服务）| --- @@ -598,30 +409,11 @@ NODE_OPTIONS=--max-old-space-size=4096 npm run build | marked | ^17.0.5 | | pako | ^2.1.0 | -### 后端依赖（server/package.json） - -| 依赖包 | 版本 | 用途 | -|--------|------|------| -| express | ^4.21.0 | Web 服务器框架 | -| cors | ^2.8.5 | 跨域中间件 | -| fluent-ffmpeg | ^2.1.3 | FFmpeg Node.js 封装 | -| axios | ^1.7.0 | HTTP 客户端 | -| uuid | ^10.0.0 | UUID 生成 | - ---- - ## 九、目录结构参考 ``` AI_Demo/ ├── dist/ # 前端构建产物（部署此目录） -├── server/ # 后端服务 -│ ├── routes/ # 路由模块 -│ │ └── video.js # 视频合成 API -│ ├── temp/ # 临时文件目录（自动创建） -│ ├── index.js # 后端服务入口 -│ ├── package.json # 后端依赖配置 -│ └── README.md # 后端服务文档 ├── src/ # 前端源码 │ ├── config/index.js # API 密钥配置（部署前确认） │ ├── router/index.js # 路由定义 @@ -635,8 +427,7 @@ AI_Demo/ │ │ ├── ProblemSolving.vue # 解题指导 │ │ ├── QuestionGenerator.vue # 题目生成 │ │ ├── QuestionVariant.vue # 题目变体 -│ │ ├── AudioToText.vue # 语音转文字 -│ │ └── QuestionExplanation.vue # 视频讲解 +│ │ └── AudioToText.vue # 语音转文字 │ ├── components/ # 公共组件 │ ├── assets/ # 静态资源 │ └── MainLayout.vue # 布局组件 @@ -647,217 +438,42 @@ AI_Demo/ --- -## 十、后端服务详细说明 +## 十、Docker 部署（可选） -### 10.1 服务架构 - -后端服务基于 Express.js 构建，主要提供视频合成功能： - -- **技术栈**：Express.js + Fluent-FFmpeg -- **默认端口**：3001 -- **主要功能**：接收图片和音频 URL，合成 MP4 视频文件 - -### 10.2 API 接口 - -#### POST `/api/video/compose` - -合成视频接口，将多组图片和音频合成为视频。 - -**请求体示例**： -```json -{ - "slides": [ - { - "imageUrl": "https://example.com/image1.png", - "audioUrl": "https://example.com/audio1.mp3" - }, - { - "imageUrl": "https://example.com/image2.png", - "audioUrl": "https://example.com/audio2.mp3" - } - ], - "width": 1920, - "height": 1080 -} -``` - -**参数说明**： -- `slides`（必需）：幻灯片数组，每个元素包含： - - `imageUrl`：图片 URL（支持 HTTP/HTTPS URL 或 base64 data URI） - - `audioUrl`：音频 URL（MP3 格式） -- `width`（可选）：视频宽度，默认 1920 -- `height`（可选）：视频高度，默认 1080 - -**响应**： -- Content-Type: `video/mp4` -- 返回合成后的 MP4 视频文件 - -#### GET `/api/video/health` - -健康检查接口，检查 FFmpeg 服务状态。 - -**响应示例**： -```json -{ - "status": "ok", - "message": "视频合成服务正常运行", - "formats": 300 -} -``` - -#### GET `/health` - -服务健康检查接口。 - -**响应示例**： -```json -{ - "status": "ok", - "timestamp": "2024-01-01T12:00:00.000Z" -} -``` - -### 10.3 环境变量配置 - -后端服务支持以下环境变量： - -| 环境变量 | 默认值 | 说明 | -|---------|--------|------| -| `PORT` | 3001 | 服务监听端口 | - -使用示例： -```bash -PORT=3002 pm2 start index.js --name ai-demo-server -``` - -### 10.4 临时文件管理 - -- 后端服务在 `server/temp/` 目录下存储临时文件 -- 每个视频合成任务会创建独立的子目录（使用 UUID 命名） -- 任务完成后，临时文件会自动清理 -- 如遇异常中断，可手动清理 `temp/` 目录 - -### 10.5 性能与资源要求 - -**建议配置**： -- **CPU**：2 核以上（视频合成需要较多 CPU 资源） -- **内存**：2GB 以上 -- **磁盘**：10GB 以上可用空间（临时文件存储） - -**并发处理**： -- 单个视频合成任务处理时间：约 10-60 秒（取决于片段数量和时长） -- 建议使用队列机制处理高并发请求（当前版本为同步处理） - -### 10.6 日志查看 - -使用 PM2 查看后端服务日志： -```bash -# 查看实时日志 -pm2 logs ai-demo-server - -# 查看最近 100 行日志 -pm2 logs ai-demo-server --lines 100 - -# 清空日志 -pm2 flush ai-demo-server -``` - -日志包含： -- 服务启动信息 -- FFmpeg 命令执行日志 -- 视频合成进度 -- 错误信息 - -### 10.7 监控与告警 - -建议监控以下指标： -- 服务进程状态（PM2 监控） -- 端口 3001 响应状态（健康检查） -- 磁盘空间（`temp/` 目录） -- CPU 和内存使用率 - ---- - -## 十一、Docker 部署（可选） - -### 11.1 后端服务 Dockerfile - -已提供 Dockerfile 位于 `Dockerfiles/backend.Dockerfile`（如需创建）： +### 10.1 构建镜像 ```dockerfile FROM node:20-alpine -# 安装 FFmpeg -RUN apk add --no-cache ffmpeg - WORKDIR /app # 复制依赖文件 -COPY server/package*.json ./ +COPY package*.json ./ RUN npm ci --only=production # 复制源码 -COPY server/ ./ +COPY . ./ -# 创建临时目录 -RUN mkdir -p temp +# 构建 +RUN npm run build -EXPOSE 3001 +EXPOSE 80 -CMD ["node", "index.js"] -``` - -### 11.2 Docker Compose 部署 - -创建 `docker-compose.yml`： - -```yaml -version: '3.8' - -services: - backend: - build: - context: . - dockerfile: Dockerfiles/backend.Dockerfile - ports: - - "3001:3001" - volumes: - - ./server/temp:/app/temp - restart: unless-stopped - environment: - - PORT=3001 - - frontend: - image: nginx:alpine - ports: - - "80:80" - volumes: - - ./dist:/usr/share/nginx/html - - ./nginx.conf:/etc/nginx/conf.d/default.conf - depends_on: - - backend - restart: unless-stopped -``` - -启动： -```bash -docker-compose up -d +CMD ["nginx", "-g", "daemon off;"] ``` --- -## 十二、安全建议 +## 十一、安全建议 1. **HTTPS 强制**：生产环境务必启用 HTTPS 2. **API 密钥保护**：不要将 API 密钥提交到代码仓库 -3. **文件上传限制**：限制视频合成的图片和音频大小 -4. **频率限制**：对 `/api/video/compose` 接口添加速率限制 -5. **临时文件清理**：定期检查并清理异常终止的临时文件 -6. **日志审计**：记录所有视频合成请求的来源和处理结果 +3. **输入验证**：对用户输入进行验证和过滤 +4. **日志审计**：记录关键操作和错误信息 --- -## 十三、更新与维护 +## 十二、更新与维护 ### 更新前端 @@ -868,24 +484,8 @@ npm run build # 重新部署 dist/ 目录 ``` -### 更新后端 - -```bash -cd server -git pull -npm install -pm2 restart ai-demo-server -``` - -### 查看服务状态 - -```bash -pm2 status -pm2 logs -``` - --- -**文档版本**：v2.0 -**更新日期**：2024-01-01 -**更新内容**：新增后端视频合成服务部署说明 +**文档版本**：v2.1 +**更新日期**：2025-04-16 +**更新内容**：移除视频讲解功能及相关后端服务 diff --git a/server/README.md b/server/README.md deleted file mode 100644 index ed3ca38..0000000 --- a/server/README.md +++ /dev/null @@ -1,73 +0,0 @@ -# AI Demo - 后端服务 - -视频合成后端服务，使用 FFmpeg 处理视频合成任务。 - -## 前置要求 - -- Node.js 18+ -- **FFmpeg** - 需要安装到系统环境变量中 - -### 安装 FFmpeg - -#### Windows -1. 下载 FFmpeg: https://www.gyan.dev/ffmpeg/builds/ -2. 解压到 `C:\ffmpeg` -3. 添加 `C:\ffmpeg\bin` 到系统环境变量 PATH - -#### macOS -```bash -brew install ffmpeg -``` - -#### Linux -```bash -sudo apt update && sudo apt install ffmpeg -``` - -## 安装依赖 - -```bash -cd server -npm install -``` - -## 启动服务 - -```bash -npm run dev # 开发模式（自动重启） -npm start # 生产模式 -``` - -服务将在 http://localhost:3001 启动。 - -## API 接口 - -### POST /api/video/compose - -合成视频 - -**请求体:** -```json -{ - "slides": [ - { - "imageUrl": "https://example.com/image1.png", - "audioUrl": "https://example.com/audio1.mp3" - } - ], - "width": 1920, - "height": 1080 -} -``` - -**响应:** `video/mp4` 格式的视频文件 - -### GET /api/video/health - -检查视频服务状态 - -## 前端配置 - -前端 Vite 开发服务器会自动代理 `/api` 请求到后端服务。 - -确保后端服务运行在 `http://localhost:3001`。 diff --git a/server/index.js b/server/index.js deleted file mode 100644 index dbca74c..0000000 --- a/server/index.js +++ /dev/null @@ -1,33 +0,0 @@ -import express from 'express'; -import cors from 'cors'; -import videoRoutes from './routes/video.js'; - -const app = express(); -const PORT = process.env.PORT || 3001; - -// 中间件 -app.use(cors()); -app.use(express.json({ limit: '50mb' })); -app.use(express.urlencoded({ extended: true, limit: '50mb' })); - -// 路由 -app.use('/api/video', videoRoutes); - -// 健康检查 -app.get('/health', (req, res) => { - res.json({ status: 'ok', timestamp: new Date().toISOString() }); -}); - -// 错误处理 -app.use((err, req, res, next) => { - console.error('Server error:', err); - 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"resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz", - "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==", - "license": "MIT", - "engines": { - "node": ">= 0.8" - } - }, - "node_modules/which": { - "version": "1.3.1", - "resolved": "https://registry.npmmirror.com/which/-/which-1.3.1.tgz", - "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==", - "license": "ISC", - "dependencies": { - "isexe": "^2.0.0" - }, - "bin": { - "which": "bin/which" - } - } - } -} diff --git a/server/package.json b/server/package.json deleted file mode 100644 index f1b653a..0000000 --- a/server/package.json +++ /dev/null @@ -1,16 +0,0 @@ -{ - "name": "ai-demo-server", - "version": "1.0.0", - "type": "module", - "scripts": { - "start": "node index.js", - "dev": "node --watch index.js" - }, - "dependencies": { - "express": "^4.21.0", - "cors": "^2.8.5", - "fluent-ffmpeg": "^2.1.3", - "axios": "^1.7.0", - "uuid": "^10.0.0" - } -} diff --git a/server/routes/video.js b/server/routes/video.js deleted file mode 100644 index f0289f5..0000000 --- a/server/routes/video.js +++ /dev/null @@ -1,284 +0,0 @@ -import express from 'express'; -import ffmpeg from 'fluent-ffmpeg'; -import axios from 'axios'; -import { v4 as uuidv4 } from 'uuid'; -import { promises as fs } from 'fs'; -import path from 'path'; -import { fileURLToPath } from 'url'; - -const __filename = fileURLToPath(import.meta.url); -const __dirname = path.dirname(__filename); - -const router = express.Router(); - -// 临时文件目录 -const TEMP_DIR = path.join(__dirname, '../temp'); - -// 确保临时目录存在 -async function ensureTempDir() { - try { - await fs.mkdir(TEMP_DIR, { recursive: true }); - } catch (err) { - console.error('创建临时目录失败:', err); - } -} - -ensureTempDir(); - -/** - * 下载资源到本地 - */ -async function downloadResource(url, outputPath) { - // 处理 base64 图片 (data:image/svg+xml,...) - if (url.startsWith('data:')) { - const matches = url.match(/^data:image\/(\w+);base64,(.+)$/); - if (matches) { - const buffer = Buffer.from(matches[2], 'base64'); - await fs.writeFile(outputPath, buffer); - return outputPath; - } - // 处理 URL 编码的 SVG - if (url.startsWith('data:image/svg+xml,')) { - const svgContent = decodeURIComponent(url.replace('data:image/svg+xml,', '')); - await fs.writeFile(outputPath, svgContent); - return outputPath; - } - throw new Error('不支持的 base64 格式'); - } - - // 处理普通 HTTP URL - const response = await axios({ - method: 'GET', - url: url, - responseType: 'arraybuffer', - timeout: 60000, - }); - - await fs.writeFile(outputPath, response.data); - return outputPath; -} - -/** - * 获取音频时长 - */ -function getAudioDuration(audioPath) { - return new Promise((resolve, reject) => { - ffmpeg.ffprobe(audioPath, (err, metadata) => { - if (err) { - reject(err); - return; - } - const duration = metadata.format.duration; - resolve(duration); - }); - }); -} - -/** - * 合成单个视频片段 - */ -async function composeSegment(imagePath, audioPath, outputPath, width, height) { - const audioDuration = await getAudioDuration(audioPath); - - return new Promise((resolve, reject) => { - ffmpeg() - .input(imagePath) - .loop(1) - .input(audioPath) - .outputOptions([ - '-tune stillimage', - '-c:a aac', - '-b:a 192k', - '-pix_fmt yuv420p', - '-shortest' - ]) - .videoFilter(`scale=${width}:${height}:force_original_aspect_ratio=decrease,pad=${width}:${height}:(ow-iw)/2:(oh-ih)/2`) - .duration(audioDuration + 0.5) - .output(outputPath) - .on('start', (commandLine) => { - console.log('FFmpeg 命令:', commandLine); - }) - .on('end', () => resolve(outputPath)) - .on('error', (err, stdout, stderr) => { - console.error('FFmpeg 错误输出:', stderr); - reject(err); - }) - .run(); - }); -} - -/** - * 合并多个视频片段 - */ -async function mergeSegments(segmentPaths, outputPath) { - const listPath = path.join(TEMP_DIR, `concat_${uuidv4()}.txt`); - // Windows 路径需要转义反斜杠或使用正斜杠 - const listContent = segmentPaths.map(p => { - // 将反斜杠替换为正斜杠，FFmpeg 更兼容 - const normalizedPath = p.replace(/\\/g, '/'); - return `file '${normalizedPath}'`; - }).join('\n'); - - await fs.writeFile(listPath, listContent); - console.log('合并列表内容:\n', listContent); - - return new Promise((resolve, reject) => { - ffmpeg() - .input(listPath) - .inputOptions(['-f concat', '-safe 0']) - .outputOptions(['-c copy']) - .output(outputPath) - .on('start', (commandLine) => { - console.log('FFmpeg 合并命令:', commandLine); - }) - .on('end', async () => { - // 清理列表文件 - try { - await fs.unlink(listPath); - } catch (e) { - console.error('清理列表文件失败:', e); - } - resolve(outputPath); - }) - .on('error', (err, stdout, stderr) => { - console.error('FFmpeg 合并错误:', stderr); - reject(err); - }) - .run(); - }); -} - -/** - * POST /api/video/compose - * 合成视频 - * - * Body: { - * slides: [{ imageUrl, audioUrl }], - * width: 1920, - * height: 1080 - * } - */ -router.post('/compose', async (req, res) => { - const { slides, width = 1920, height = 1080 } = req.body; - - if (!slides || !Array.isArray(slides) || slides.length === 0) { - return res.status(400).json({ error: '缺少 slides 参数或格式错误' }); - } - - const taskId = uuidv4(); - const taskDir = path.join(TEMP_DIR, taskId); - - console.log(`[${taskId}] 开始处理视频合成任务，共 ${slides.length} 个片段`); - - try { - // 创建任务目录 - await fs.mkdir(taskDir, { recursive: true }); - - const segmentPaths = []; - - // 逐个处理片段 - for (let i = 0; i < slides.length; i++) { - const slide = slides[i]; - console.log(`[${taskId}] 处理第 ${i + 1}/${slides.length} 个片段`); - - if (!slide.imageUrl || !slide.audioUrl) { - console.warn(`[${taskId}] 第 ${i + 1} 个片段缺少 imageUrl 或 audioUrl，跳过`); - continue; - } - - // 下载图片和音频 - const imagePath = path.join(taskDir, `image_${i}.png`); - const audioPath = path.join(taskDir, `audio_${i}.mp3`); - const segmentPath = path.join(taskDir, `segment_${i}.mp4`); - - console.log(`[${taskId}] 下载图片: ${slide.imageUrl.substring(0, 50)}...`); - console.log(`[${taskId}] 下载音频: ${slide.audioUrl.substring(0, 50)}...`); - - await downloadResource(slide.imageUrl, imagePath); - await downloadResource(slide.audioUrl, audioPath); - - // 检查文件是否成功创建 - try { - const imageStats = await fs.stat(imagePath); - const audioStats = await fs.stat(audioPath); - console.log(`[${taskId}] 图片大小: ${imageStats.size} bytes, 音频大小: ${audioStats.size} bytes`); - } catch (e) { - console.error(`[${taskId}] 文件检查失败:`, e); - } - - // 合成片段 - await composeSegment(imagePath, audioPath, segmentPath, width, height); - segmentPaths.push(segmentPath); - - console.log(`[${taskId}] 第 ${i + 1} 个片段合成完成`); - } - - if (segmentPaths.length === 0) { - throw new Error('没有有效的片段可以合并'); - } - - // 合并所有片段 - console.log(`[${taskId}] 开始合并 ${segmentPaths.length} 个片段`); - const finalPath = path.join(taskDir, 'output.mp4'); - await mergeSegments(segmentPaths, finalPath); - - console.log(`[${taskId}] 视频合成完成: ${finalPath}`); - - // 返回视频文件 - res.setHeader('Content-Type', 'video/mp4'); - res.setHeader('Content-Disposition', 'attachment; filename="question-explanation.mp4"'); - - const videoBuffer = await fs.readFile(finalPath); - res.send(videoBuffer); - - // 清理临时文件（延迟删除，确保响应已发送） - setTimeout(async () => { - try { - await fs.rm(taskDir, { recursive: true, force: true }); - console.log(`[${taskId}] 临时文件已清理`); - } catch (e) { - console.error(`[${taskId}] 清理临时文件失败:`, e); - } - }, 1000); - - } catch (error) { - console.error(`[${taskId}] 视频合成失败:`, error); - - // 清理临时文件 - try { - await fs.rm(taskDir, { recursive: true, force: true }); - } catch (e) { - // 忽略清理错误 - } - - res.status(500).json({ - error: '视频合成失败', - message: error.message - }); - } -}); - -/** - * GET /api/video/health - * 检查视频服务状态 - */ -router.get('/health', (req, res) => { - // 检查 ffmpeg 是否可用 - ffmpeg.getAvailableFormats((err, formats) => { - if (err) { - return res.status(500).json({ - status: 'error', - message: 'FFmpeg 不可用', - error: err.message - }); - } - - res.json({ - status: 'ok', - message: '视频合成服务正常运行', - formats: formats ? Object.keys(formats).length : 'unknown' - }); - }); -}); - -export default router; diff --git a/src/config/index.js b/src/config/index.js index 9882338..2f2e266 100644 --- a/src/config/index.js +++ b/src/config/index.js @@ -227,75 +227,3 @@ export const AUDIO_TEXT_OPTIMIZE_PROMPT = `你是一位专业的文字编辑和 - 保持原文语言（中文/英文/日语） - 如果原文已经很好，只需做必要的格式调整`; -// ── 试题讲解生成配置 ── -// 文本分析模型（用于分析试题复杂度、拆分讲解点、生成讲解文本和图片提示词） -export const QUESTION_EXPLANATION_ANALYSIS_URL = "https://ark.cn-beijing.volces.com/api/v3/chat/completions"; -export const QUESTION_EXPLANATION_ANALYSIS_MODEL = "doubao-seed-2-0-lite-260215"; -export const QUESTION_EXPLANATION_ANALYSIS_TEMPERATURE = 0.7; -export const QUESTION_EXPLANATION_ANALYSIS_MAX_TOKENS = 4096; - -// 试题分析 System Prompt -export const QUESTION_EXPLANATION_ANALYSIS_PROMPT = `你是一位经验丰富的教学专家，擅长将复杂的试题拆解为清晰的讲解步骤。 - -【任务目标】 -分析试题复杂度，将其拆分为2-8个讲解点，并为每个讲解点生成详细的讲解文本和对应的图片生成提示词。 - -【分析流程】 -1. 评估试题复杂度： - - 简单题（单一知识点）：生成2-3个讲解点 - - 中等题（多个知识点）：生成4-5个讲解点 - - 复杂题（综合应用）：生成6-8个讲解点 - -2. 拆分讲解点：按照解题逻辑顺序拆分，确保每个讲解点聚焦一个核心概念或步骤 - -3. 为每个讲解点生成： - - 标题：简洁明了，概括该步骤的核心内容 - - 讲解文本：详细的解释说明，语言通俗易懂，适合语音朗读（控制在80-150字之间） - - 图片提示词：用于生成配套讲解图片，要求视觉化呈现该步骤的核心内容 - -【输出格式 - 严格按JSON格式输出】 -必须只输出纯JSON，不要包含任何其他文字、说明或markdown标记。格式如下： -{"complexity":"简单|中等|复杂","totalPoints":数字,"explanationPoints":[{"order":1,"title":"讲解点标题","explanationText":"详细的讲解文本内容...","imagePrompt":"清晰、具体的图片生成提示词，包含视觉元素描述..."}]} - -【重要规则】 -1. 【最高优先级】只输出JSON，不要有任何其他文字 -2. 必须严格按JSON格式输出，所有字符串值必须用双引号包裹 -3. 字符串内的双引号必须转义为 \\" -4. 字符串内的换行符必须转义为 \\n -5. 讲解文本要口语化，适合语音朗读，避免过于书面化 -6. 图片提示词要具体、形象，便于AI生成直观的教学图示 -7. 讲解点之间要有逻辑连贯性，形成完整的解题思路 -8. 确保JSON格式正确，所有引号、逗号、括号匹配 - -【示例输出】 -{"complexity":"简单","totalPoints":2,"explanationPoints":[{"order":1,"title":"理解题目","explanationText":"首先我们来看这道题目，题目要求我们...","imagePrompt":"一个清晰的题目展示卡片..."},{"order":2,"title":"解题思路","explanationText":"接下来我们分析解题思路...","imagePrompt":"解题步骤流程图..."}]}`; - -// 图片生成模型配置（阿里云百炼） -export const QUESTION_EXPLANATION_IMAGE_URL = "/dashscope-api/api/v1/services/aigc/multimodal-generation/generation"; -export const QUESTION_EXPLANATION_IMAGE_MODEL = "qwen-image-2.0-pro"; // 千问文生图模型，擅长文字渲染 -export const QUESTION_EXPLANATION_IMAGE_SIZE = "1920*1080"; // 16:9 比例 - -// 图片统一风格描述（确保所有生成的图片风格一致） -export const QUESTION_EXPLANATION_IMAGE_STYLE = `【统一视觉风格要求】 -1. 背景：使用深蓝色渐变背景（从深蓝色#1e293b到更深的蓝黑色#0f172a），营造专业学术氛围 -2. 配色方案：主色调为深蓝色系，辅助色为紫色和蓝色（色值范围：紫色#8b5cf6到蓝色#3b82f6），强调色使用白色和淡蓝色 -3. 字体样式：所有文字使用清晰易读的无衬线字体，标题文字使用白色或淡蓝色，重点内容可用亮色标注 -4. 图形元素：使用简洁的几何图形、流程图、示意图等，线条清晰，颜色协调 -5. 整体风格：现代简约、专业严谨的教学图示风格，避免过于花哨或复杂的装饰 -6. 布局：采用居中对称或左右分栏布局，保持视觉平衡 -7. 光影效果：适当使用柔和的光晕效果或渐变叠加，增强层次感 -8. 所有图片必须严格遵循以上风格要求，确保整个讲解系列的视觉连贯性和专业性`; - -// 语音合成模型配置（阿里云百炼） -export const QUESTION_EXPLANATION_TTS_URL = "/dashscope-api/api/v1/services/aigc/multimodal-generation/generation"; -export const QUESTION_EXPLANATION_TTS_MODEL = "qwen3-tts-flash"; -export const QUESTION_EXPLANATION_TTS_VOICE = "Cherry"; // 芊悦：阳光积极的小姐姐音色 -export const QUESTION_EXPLANATION_TTS_LANGUAGE = "zh-CN"; -export const QUESTION_EXPLANATION_TTS_FORMAT = "mp3"; -export const QUESTION_EXPLANATION_TTS_SAMPLE_RATE = 24000; - -// ── 视频合成配置 ── -export const VIDEO_WIDTH = 1920; -export const VIDEO_HEIGHT = 1080; -export const VIDEO_OUTPUT_FORMAT = "mp4"; -export const VIDEO_FILENAME_PREFIX = "试题讲解_"; diff --git a/src/router/index.js b/src/router/index.js index 06e0a15..9718521 100644 --- a/src/router/index.js +++ b/src/router/index.js @@ -9,7 +9,6 @@ import ProblemSolving from '../views/ProblemSolving.vue' import QuestionGenerator from '../views/QuestionGenerator.vue' import QuestionVariant from '../views/QuestionVariant.vue' import AudioToText from '../views/AudioToText.vue' -import QuestionExplanation from '../views/QuestionExplanation.vue' import SpeakingEvaluation from '../views/SpeakingEvaluation.vue' const router = createRouter({ @@ -65,11 +64,6 @@ const router = createRouter({ name: 'audio-to-text', component: AudioToText }, - { - path: '/question-explanation', - name: 'question-explanation', - component: QuestionExplanation - }, { path: '/speaking-evaluation', name: 'speaking-evaluation', diff --git a/src/utils/videoComposer.js b/src/utils/videoComposer.js deleted file mode 100644 index b49472d..0000000 --- a/src/utils/videoComposer.js +++ /dev/null @@ -1,139 +0,0 @@ -/** - * 视频合成模块 - 后端 FFmpeg 方案 - */ - -// 后端 API 地址 -const API_BASE = '/api/video'; - -/** - * 合成视频 - 调用后端 API - * @param {Array} slides 讲解点数组，每个包含 imageUrl 和 audioUrl - * @param {Object} options 配置选项 - * @param {Function} onProgress 进度回调 { stage, current, total, message } - * @returns {Promise} 视频Blob - */ -export async function composeVideo(slides, options = {}, onProgress = null) { - const { - width = 1920, - height = 1080, - } = options; - - // 过滤有效的 slide，并使用原始完整 URL - const validSlides = slides - .filter(s => (s.originalImageUrl || s.imageUrl) && (s.originalAudioUrl || s.audioUrl)) - .map(s => ({ - // 优先使用原始完整 URL，否则使用当前 URL - imageUrl: s.originalImageUrl || s.imageUrl, - audioUrl: s.originalAudioUrl || s.audioUrl, - })); - - if (validSlides.length === 0) { - throw new Error('没有有效的讲解内容'); - } - - // 检查 URL 格式 - const invalidUrls = validSlides.filter(s => - !s.imageUrl.startsWith('http') && !s.imageUrl.startsWith('data:') - ); - if (invalidUrls.length > 0) { - console.warn('部分 URL 格式不正确:', invalidUrls); - } - - // 阶段1: 准备请求 - if (onProgress) { - onProgress({ - stage: 'preparing', - current: 0, - total: validSlides.length, - message: '正在准备视频合成请求...', - }); - } - - try { - // 阶段2: 发送请求到后端 - if (onProgress) { - onProgress({ - stage: 'composing', - current: 1, - total: validSlides.length, - message: `服务器正在合成视频 (${validSlides.length} 个片段)...`, - }); - } - - const response = await fetch(`${API_BASE}/compose`, { - method: 'POST', - headers: { - 'Content-Type': 'application/json', - }, - body: JSON.stringify({ - slides: validSlides, - width, - height, - }), - }); - - if (!response.ok) { - const error = await response.json().catch(() => ({ message: '请求失败' })); - throw new Error(error.message || `服务器错误: ${response.status}`); - } - - // 阶段3: 接收视频 - if (onProgress) { - onProgress({ - stage: 'merging', - current: validSlides.length, - total: validSlides.length, - message: '正在接收合成后的视频...', - }); - } - - const videoBlob = await response.blob(); - - if (onProgress) { - onProgress({ - stage: 'completed', - current: 1, - total: 1, - message: '视频合成完成！', - }); - } - - return videoBlob; - } catch (error) { - console.error('视频合成失败:', error); - throw new Error(`视频合成失败: ${error.message}`); - } -} - -/** - * 下载视频 - * @param {Blob} blob 视频Blob - * @param {string} filename 文件名 - */ -export function downloadVideo(blob, filename = 'question-explanation.mp4') { - const url = URL.createObjectURL(blob); - const a = document.createElement('a'); - a.href = url; - a.download = filename; - document.body.appendChild(a); - a.click(); - document.body.removeChild(a); - URL.revokeObjectURL(url); -} - -/** - * 创建预览URL - * @param {Blob} blob 视频Blob - * @returns {string} Blob URL - */ -export function createPreviewUrl(blob) { - return URL.createObjectURL(blob); -} - -/** - * 释放预览URL - * @param {string} url Blob URL - */ -export function revokePreviewUrl(url) { - URL.revokeObjectURL(url); -} diff --git a/src/views/HomePage.vue b/src/views/HomePage.vue index 3b0ad00..569bbaf 100644 --- a/src/views/HomePage.vue +++ b/src/views/HomePage.vue @@ -85,14 +85,6 @@ const features = ref([ icon: "file-audio", route: "/audio-to-text", }, - { - id: 11, - title: "AI试题讲解生成", - desc: "智能分析试题复杂度，自动生成图文并茂的幻灯片式讲解，每张图片配语音讲解，让解题过程清晰易懂。", - class: "card-11", - icon: "presentation", - route: "/question-explanation", - }, { id: 12, title: "听读评测", diff --git a/src/views/QuestionExplanation.vue b/src/views/QuestionExplanation.vue deleted file mode 100644 index 22e235f..0000000 --- a/src/views/QuestionExplanation.vue +++ /dev/null @@ -1,1847 +0,0 @@ - - - - - diff --git a/vite.config.js b/vite.config.js index a5e6c7b..e87b20f 100644 --- a/vite.config.js +++ b/vite.config.js @@ -18,11 +18,6 @@ export default defineConfig({ server: { host: '0.0.0.0', proxy: { - // 后端 API 代理 - '/api': { - target: 'http://localhost:3001', - changeOrigin: true, - }, '/tts-api': { target: 'https://openspeech.bytedance.com', changeOrigin: true,