备份：修复前完整项目快照 2026-04-19

backend/routes_backup/upload.js

@@ -0,0 +1,37 @@
+const express = require('express');
+const db = require('../db-sqlite');
+const { authenticate } = require('../middleware/auth');
+const multer = require('multer');
+
+const upload = multer({ dest: 'uploads/' });
+
+module.exports = function(app) {
+  const router = express.Router();
+
+  router.post('/single', authenticate, upload.single('file'), async (req, res) => {
+    try {
+      if (!req.file) {
+        return res.status(400).json({ success: false, message: '没有上传文件' });
+      }
+      
+      const fileUrl = `/uploads/${req.file.filename}`;
+      
+      res.json({
+        success: true,
+        message: '文件上传成功',
+        data: {
+          filename: req.file.filename,
+          url: fileUrl,
+          size: req.file.size
+        }
+      });
+      
+      console.log(`文件 ${req.file.filename} 上传成功，由 ${req.user.username} 操作`);
+    } catch (error) {
+      console.error('文件上传失败:', error);
+      res.status(500).json({ success: false, message: '文件上传失败' });
+    }
+  });
+
+  app.use('/api/upload', router);
+};