备份：修复前完整项目快照 2026-04-19

backend/routes/upload.js

@@ -0,0 +1,122 @@
+const express = require('express');
+const multer = require('multer');
+const path = require('path');
+const COS = require('cos-nodejs-sdk-v5');
+
+const router = express.Router();
+
+const cos = new COS({
+  SecretId: 'AKID8PXTCi2A4vdB6oMitsfM3b1FNQL5kEVZ',
+  SecretKey: 'vY0OgmhRyKUSClBRXSIySmqkTUZZYdwo'
+});
+
+const cosConfig = {
+  Bucket: 'qingyuan-erp-files-1310040146',
+  Region: 'ap-hongkong'
+};
+
+const imageFormats = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp', 'svg'];
+
+const upload = multer({ 
+  storage: multer.memoryStorage(),
+  limits: { fileSize: 10 * 1024 * 1024 }
+});
+
+router.post('/upload/single', upload.single('file'), (req, res) => {
+  try {
+    if (!req.file) {
+      return res.status(400).json({ success: false, error: '没有上传文件' });
+    }
+    
+    const ext = req.file.originalname.split('.').pop().toLowerCase();
+    const timestamp = Date.now();
+    const randomStr = Math.random().toString(36).substring(2, 8);
+    const filename = 'uploads/' + timestamp + '_' + randomStr + '.' + ext;
+    
+    console.log('开始上传文件到 COS:', filename);
+    
+    cos.putObject({
+      Bucket: cosConfig.Bucket,
+      Region: cosConfig.Region,
+      Key: filename,
+      Body: req.file.buffer,
+      ContentType: req.file.mimetype,
+      ACL: 'public-read'
+    }, (err, data) => {
+      if (err) {
+        console.error('COS 上传失败:', err);
+        return res.status(500).json({ success: false, error: '上传失败: ' + err.message });
+      }
+      
+      console.log('COS 上传成功:', data);
+      
+      const permanentUrl = 'https://' + cosConfig.Bucket + '.cos.' + cosConfig.Region + '.myqcloud.com/' + filename;
+      
+      console.log('返回永久 URL:', permanentUrl);
+      
+      res.json({
+        success: true,
+        data: {
+          url: permanentUrl,
+          key: filename,
+          name: req.file.originalname,
+          size: req.file.size,
+          type: req.file.mimetype,
+          isImage: imageFormats.includes(ext)
+        },
+        message: '文件上传成功'
+      });
+    });
+  } catch (error) {
+    console.error('上传异常:', error);
+    res.status(500).json({ success: false, error: '上传失败' });
+  }
+});
+
+router.post('/upload/multiple', upload.array('files', 10), (req, res) => {
+  try {
+    if (!req.files || req.files.length === 0) {
+      return res.status(400).json({ success: false, error: '没有上传文件' });
+    }
+    
+    const uploadPromises = req.files.map(file => {
+      return new Promise((resolve, reject) => {
+        const ext = file.originalname.split('.').pop().toLowerCase();
+        const filename = 'uploads/' + Date.now() + '_' + Math.random().toString(36).substring(2, 8) + '.' + ext;
+        
+        cos.putObject({
+          Bucket: cosConfig.Bucket,
+          Region: cosConfig.Region,
+          Key: filename,
+          Body: file.buffer,
+          ContentType: file.mimetype,
+          ACL: 'public-read'
+        }, (err, data) => {
+          if (err) reject(err);
+          else {
+            const permanentUrl = 'https://' + cosConfig.Bucket + '.cos.' + cosConfig.Region + '.myqcloud.com/' + filename;
+            resolve({
+              url: permanentUrl,
+              key: filename,
+              name: file.originalname,
+              size: file.size,
+              isImage: imageFormats.includes(ext)
+            });
+          }
+        });
+      });
+    });
+    
+    Promise.all(uploadPromises)
+      .then(results => res.json({ success: true, data: results }))
+      .catch(error => {
+        console.error('批量上传失败:', error);
+        res.status(500).json({ success: false, error: '上传失败' });
+      });
+  } catch (error) {
+    console.error('批量上传异常:', error);
+    res.status(500).json({ success: false, error: '上传失败' });
+  }
+});
+
+module.exports = router;