4.29技术中心合并前更改

Co-authored-by: Copilot <copilot@github.com>
2026-04-29 18:53:24 +08:00
parent 7687b4e7b8
commit ec35590493
25 changed files with 792 additions and 329 deletions
@@ -0,0 +1,91 @@
+# PDF 预览系统 (PDF Preview Site)
+
+这是一个安全、现代化的 PDF 预览系统，具有管理员后台和公共预览功能。
+
+## 🖥 本地开发
+
+前后端分开运行：
+
+```bash
+# 终端 1：启动后端（API 服务）
+cd backend && npm install && npm start
+# → http://localhost:3000
+
+# 终端 2：启动前端（开发服务器，支持热更新）
+cd frontend && npm install && npm run dev
+# → http://localhost:5173
+```
+
+## 📦 打包 & 部署到服务器
+
+只需要上传 `backend` 文件夹即可，步骤如下：
+
+### 第一步：在本地打包前端
+
+```bash
+cd frontend
+npm run build
+```
+
+执行后，前端产物会自动输出到 `backend/public/` 目录中。
+
+### 第二步：上传 backend 文件夹到服务器
+
+将整个 `backend/` 文件夹上传到服务器（通过 FTP/SCP/Git 均可）。
+
+> [!IMPORTANT]
+> 上传时注意包含以下内容：
+> - `backend/public/`（前端打包产物，刚才 build 生成的）
+> - `backend/uploads/`（已上传的 PDF 文件）
+> - `backend/database.sqlite`（数据库文件，包含管理员账号和文档记录）
+>
+> 可以把 `backend/node_modules/` 排除，在服务器上重新 `npm install` 即可。
+
+### 第三步：在服务器上启动
+
+```bash
+cd backend
+npm install     # 仅首次或依赖变更时需要
+npm start       # 启动服务
+```
+
+访问 `http://服务器IP:3000` 即可看到网站，**前后端都由这一个进程提供服务**。
+
+### 第四步（推荐）：用 PM2 长期运行
+
+```bash
+npm install pm2 -g          # 全局安装 PM2（仅首次）
+pm2 start server.js --name pdf-site   # 后台启动
+pm2 save && pm2 startup     # 设置开机自启
+```
+
+常用管理命令：
+```bash
+pm2 status                  # 查看运行状态
+pm2 logs pdf-site           # 查看日志
+pm2 restart pdf-site        # 重启服务
+```
+
+## 🔐 管理后台
+
+- **后台地址**: `http://服务器IP:3000/admin`
+- **默认用户名**: `admin`
+- **默认密码**: `123456`
+
+> [!WARNING]
+> 生产环境请务必修改默认密码！详见修改方法：在 `backend` 目录运行以下命令（替换新用户名/密码）：
+> ```bash
+> node -e "const db=require('./database');const bcrypt=require('bcryptjs');const h=bcrypt.hashSync('新密码',10);db.prepare('UPDATE users SET username=?,password=? WHERE id=1').run('新用户名',h);console.log('已更新');"
+> ```
+
+## 🛠 技术栈
+- **前端**: Vue 3 + Vite + Glassmorphism UI
+- **后端**: Node.js + Express（同时托管前端静态文件）
+- **数据库**: SQLite (better-sqlite3)
+- **PDF 处理**: 提取前两页进行预览
+
+## 📁 目录结构
+- `/frontend`: Vue 3 源码（本地开发用，部署后不需要上传）
+- `/backend`: Node.js 服务 + 前端打包产物（部署只需上传这个）
+- `/backend/public/`: 前端 build 产物（由 `npm run build` 自动生成）
+- `/backend/database.sqlite`: 存储文档信息和管理员账号
@@ -4,6 +4,7 @@
  "description": "",
  "main": "index.js",
  "scripts": {
+    "start": "node server.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
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+  </symbol>
+</svg>
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>frontend</title>
+    <script type="module" crossorigin src="/assets/index-CBnsKpxD.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-DG_v3cGl.css">
+  </head>
+  <body>
+    <div id="app"></div>
+  </body>
+</html>
@@ -15,6 +15,8 @@ const JWT_SECRET = 'super-secret-key-pdf-preview';
 app.use(cors());
 app.use(express.json());
 app.use('/uploads/processed', express.static(path.join(__dirname, 'uploads/processed')));
+// Serve the built frontend from the public folder
+app.use(express.static(path.join(__dirname, 'public')));

 // Ensure upload directories exist
 const uploadDirOrig = path.join(__dirname, 'uploads/original');
@@ -24,7 +26,8 @@ if (!fs.existsSync(uploadDirProc)) fs.mkdirSync(uploadDirProc, { recursive: true

 const storage = multer.diskStorage({
  destination: function (req, file, cb) {
-    cb(null, 'uploads/original/');
+    // 使用绝对路径，避免服务器 CWD 不在项目目录时写入失败
+    cb(null, path.join(__dirname, 'uploads/original/'));
  },
  filename: function (req, file, cb) {
    const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
@@ -79,7 +82,13 @@ app.post('/api/admin/upload', authenticateJWT, upload.single('document'), async
    
    res.json({ message: 'Upload successful', documentId: info.lastInsertRowid });
  } catch (error) {
-    res.status(500).json({ message: 'Error processing PDF', error: error.toString() });
+    // 输出完整堆栈到服务器日志，便于排查
+    console.error('Upload error details:', error.stack || error);
+    res.status(500).json({
+      message: 'Error processing PDF',
+      error: error.message || error.toString(),
+      stack: process.env.NODE_ENV !== 'production' ? error.stack : undefined
+    });
  }
 });

@@ -105,7 +114,7 @@ app.get('/api/documents', (req, res) => {
    id: doc.id,
    title: doc.title,
    created_at: doc.created_at,
-    url: `http://localhost:3000/${doc.processed_path}`
+    url: `/${doc.processed_path}`
  }));
  res.json(responseData);
 });
@@ -119,10 +128,22 @@ app.get('/api/documents/:id', (req, res) => {
    id: doc.id,
    title: doc.title,
    created_at: doc.created_at,
-    url: `http://localhost:3000/${doc.processed_path}`
+    url: `/${doc.processed_path}`
  });
 });

 app.listen(PORT, () => {
  console.log(`Backend server running on http://localhost:${PORT}`);
 });
+
+// SPA fallback: must be after all API routes so Vue Router can handle client-side routing
+// Note: app.use() (not app.get('*')) is required for Express 5 compatibility
+app.use((req, res) => {
+  const indexPath = path.join(__dirname, 'public', 'index.html');
+  if (fs.existsSync(indexPath)) {
+    res.sendFile(indexPath);
+  } else {
+    res.status(404).send('Frontend not built yet. Run: cd frontend && npm run build');
+  }
+});
+
@@ -0,0 +1,2 @@
+# 开发环境：前后端分离，后端运行在 3000 端口
+VITE_API_BASE_URL=http://localhost:3000
@@ -0,0 +1,2 @@
+# 生产环境：前端由后端托管，API 使用相对路径（空字符串即可）
+VITE_API_BASE_URL=
@@ -1,5 +1,25 @@
-# Vue 3 + Vite
+# PDF 预览系统 - 前端 (Frontend)

-This template should help get you started developing with Vue 3 in Vite. The template uses Vue 3 `<script setup>` SFCs, check out the [script setup docs](https://v3.vuejs.org/api/sfc-script-setup.html#sfc-script-setup) to learn more.
+这是基于 Vue 3 和 Vite 构建的现代化前端界面。

-Learn more about IDE Support for Vue in the [Vue Docs Scaling up Guide](https://vuejs.org/guide/scaling-up/tooling.html#ide-support).
+## 🔐 管理员入口
+
+如果你想进入管理后台：
+- **地址**: 访问网站首页并在 URL 后添加 `/admin` (例如: `http://localhost:5173/admin`)
+- **账号**: `admin`
+- **密码**: `123456`
+
+## 🛠 常用命令
+
+```bash
+# 安装依赖
+npm install
+
+# 启动开发服务器
+npm run dev
+
+# 构建生产版本
+npm run build
+```
+
+有关完整项目说明，请参阅根目录下的 [README.md](../README.md)。
@@ -61,6 +61,8 @@
 import { ref, onMounted } from 'vue';
 import axios from 'axios';

+const API = import.meta.env.VITE_API_BASE_URL;
+
 const isLoggedIn = ref(false);
 const username = ref('');
 const password = ref('');
@@ -82,7 +84,7 @@ onMounted(() => {

 const handleLogin = async () => {
  try {
-    const res = await axios.post('http://localhost:3000/api/admin/login', {
+    const res = await axios.post(`${API}/api/admin/login`, {
      username: username.value,
      password: password.value
    });
@@ -102,7 +104,7 @@ const logout = () => {

 const fetchDocs = async () => {
  try {
-    const res = await axios.get('http://localhost:3000/api/documents');
+    const res = await axios.get(`${API}/api/documents`);
    documents.value = res.data;
  } catch (e) {
    console.error("Failed to load documents");
@@ -122,7 +124,7 @@ const handleUpload = async () => {

  try {
    const token = localStorage.getItem('admin_token');
-    await axios.post('http://localhost:3000/api/admin/upload', formData, {
+    await axios.post(`${API}/api/admin/upload`, formData, {
      headers: {
        'Content-Type': 'multipart/form-data',
        'Authorization': `Bearer ${token}`
@@ -145,7 +147,7 @@ const deleteDoc = async (id) => {
    if(!confirm("确定要执行此操作吗？")) return;
    try {
        const token = localStorage.getItem('admin_token');
-        await axios.delete(`http://localhost:3000/api/admin/documents/${id}`, {
+        await axios.delete(`${API}/api/admin/documents/${id}`, {
            headers: { 'Authorization': `Bearer ${token}` }
        });
        fetchDocs();
@@ -31,10 +31,11 @@ import axios from 'axios';
 const documents = ref([]);
 const loading = ref(true);
 const router = useRouter();
+const API = import.meta.env.VITE_API_BASE_URL;

 onMounted(async () => {
  try {
-    const res = await axios.get('http://localhost:3000/api/documents');
+    const res = await axios.get(`${API}/api/documents`);
    documents.value = res.data;
  } catch (error) {
    console.error("Error fetching docs", error);
@@ -27,12 +27,18 @@ const router = useRouter();
 const document = ref(null);
 const loading = ref(true);
 const error = ref('');
+const API = import.meta.env.VITE_API_BASE_URL;

 onMounted(async () => {
  try {
    const id = route.params.id;
-    const res = await axios.get(`http://localhost:3000/api/documents/${id}`);
-    document.value = res.data;
+    const res = await axios.get(`${API}/api/documents/${id}`);
+    // 将相对路径拼接为完整 URL，解决开发模式下跨端口访问问题
+    const data = res.data;
+    if (data.url && data.url.startsWith('/')) {
+      data.url = `${API}${data.url}`;
+    }
+    document.value = data;
  } catch (err) {
    error.value = "文档未找到或无法访问。";
  } finally {
@@ -4,4 +4,9 @@ import vue from '@vitejs/plugin-vue'
 // https://vite.dev/config/
 export default defineConfig({
  plugins: [vue()],
+  build: {
+    // Build output goes directly into the backend's public folder
+    outDir: '../backend/public',
+    emptyOutDir: true,
+  },
 })