151 lines
4.2 KiB
JavaScript
151 lines
4.2 KiB
JavaScript
import express from 'express';
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import cors from 'cors';
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import path from 'path';
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import fs from 'fs';
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import { fileURLToPath } from 'url';
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import multer from 'multer';
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// 获取当前文件的目录路径
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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const app = express();
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const PORT = 3000;
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const CONFIG_FILE_PATH = path.join(__dirname, 'data', 'config.json');
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// 创建上传目录
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const uploadDir = path.join(__dirname, 'uploads');
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if (!fs.existsSync(uploadDir)) {
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fs.mkdirSync(uploadDir, { recursive: true });
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}
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// 配置multer
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const storage = multer.diskStorage({
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destination: (req, file, cb) => {
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cb(null, uploadDir);
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},
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filename: (req, file, cb) => {
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const timestamp = Date.now();
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const ext = path.extname(file.originalname);
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const filename = `${timestamp}${ext}`;
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cb(null, filename);
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}
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});
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const upload = multer({
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storage,
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limits: { fileSize: 5 * 1024 * 1024 }, // 5MB限制
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fileFilter: (req, file, cb) => {
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const allowedTypes = /jpeg|jpg|png|gif/;
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const extname = allowedTypes.test(path.extname(file.originalname).toLowerCase());
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const mimetype = allowedTypes.test(file.mimetype);
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if (extname && mimetype) {
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return cb(null, true);
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} else {
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cb(new Error('只允许上传图片文件（JPEG、JPG、PNG、GIF）'));
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}
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}
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});
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// 中间件
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app.use(cors());
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app.use(express.json());
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// 静态文件服务（Vue应用和上传的图片）
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app.use(express.static(path.join(__dirname, 'dist')));
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app.use('/uploads', express.static(uploadDir));
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// API: 获取配置数据
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app.get('/api/config', (req, res) => {
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try {
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const configData = fs.readFileSync(CONFIG_FILE_PATH, 'utf8');
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res.json(JSON.parse(configData));
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} catch (error) {
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console.error('读取配置文件失败:', error);
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res.status(500).json({ error: '读取配置文件失败' });
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}
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});
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// API: 保存配置数据
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app.post('/api/config', (req, res) => {
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try {
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fs.writeFileSync(CONFIG_FILE_PATH, JSON.stringify(req.body, null, 2), 'utf8');
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res.json({ success: true });
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} catch (error) {
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console.error('保存配置文件失败:', error);
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res.status(500).json({ error: '保存配置文件失败' });
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}
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});
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// API: 上传图片
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app.post('/api/upload', upload.single('image'), (req, res) => {
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try {
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if (!req.file) {
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return res.status(400).json({ error: '没有文件上传' });
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}
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// 返回文件的相对路径
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const relativePath = `/uploads/${req.file.filename}`;
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res.json({
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success: true,
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filePath: relativePath,
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filename: req.file.filename
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});
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} catch (error) {
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console.error('文件上传失败:', error);
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res.status(500).json({ error: error.message || '文件上传失败' });
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}
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});
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// API: 删除图片
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app.delete('/api/upload/:filename', (req, res) => {
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try {
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const filename = req.params.filename;
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const filePath = path.join(uploadDir, filename);
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if (fs.existsSync(filePath)) {
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fs.unlinkSync(filePath);
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res.json({ success: true });
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} else {
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res.status(404).json({ error: '文件不存在' });
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}
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} catch (error) {
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console.error('文件删除失败:', error);
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res.status(500).json({ error: '文件删除失败' });
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}
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});
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// 处理Vue Router历史模式 - 使用正则表达式代替通配符
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app.get(/^((?!\/api).)*$/, (req, res) => {
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res.sendFile(path.join(__dirname, 'dist', 'index.html'));
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});
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// 启动服务器并监听错误
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const server = app.listen(PORT, '0.0.0.0', () => {
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console.log(`服务器运行在 http://localhost:${PORT}`);
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console.log('服务器已成功启动，可以访问 http://localhost:3000');
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console.log('API端点: GET/POST /api/config');
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});
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// 监听服务器错误
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server.on('error', (error) => {
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console.error('服务器错误:', error);
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if (error.code === 'EADDRINUSE') {
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console.error(`端口 ${PORT} 已被占用，请尝试其他端口。`);
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}
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});
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// 监听SIGINT信号（Ctrl+C）
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process.on('SIGINT', () => {
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console.log('正在关闭服务器...');
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server.close(() => {
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console.log('服务器已关闭');
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process.exit(0);
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});
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});
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// 确保服务器持续运行
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setInterval(() => {
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// 保持服务器活动的空操作
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}, 60000); // 每分钟执行一次
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