优化验证报名信息对话框车牌号输入布局，使标签和输入框在同一行显示

backend/middleware/upload.js

@@ -1,11 +1,27 @@
 const multer = require('multer');
 const path = require('path');
-const { v4: uuidv4 } = require('uuid');
-const { uploadBuffer } = require('../utils/minio');
+const fs = require('fs');
+
+// 确保上传目录存在
+const uploadDir = path.join(__dirname, '../uploads');
+if (!fs.existsSync(uploadDir)) {
+  fs.mkdirSync(uploadDir, { recursive: true });
+}
+
+// 配置本地存储
+const storage = multer.diskStorage({
+  destination: (req, file, cb) => {
+    cb(null, uploadDir);
+  },
+  filename: (req, file, cb) => {
+    const uniqueName = `${Date.now()}-${Math.random().toString(36).substring(7)}${path.extname(file.originalname)}`;
+    cb(null, uniqueName);
+  }
+});
 
-// 使用内存存储，文件不落盘，不限制大小
 const upload = multer({
-  storage: multer.memoryStorage(),
+  storage,
+  limits: { fileSize: 50 * 1024 * 1024 }, // 50MB
   fileFilter: (req, file, cb) => {
     const extname = /jpeg|jpg|png|gif|mp4|mov|avi/.test(
       path.extname(file.originalname).toLowerCase()
@@ -16,15 +32,14 @@ const upload = multer({
   }
 });
 
-// 将 req.files 或 req.file 上传到 MinIO，返回 url 数组或单个 url
-const uploadFilesToMinio = async (files) => {
+// 返回文件访问URL
+const getFileUrls = (files) => {
   const list = Array.isArray(files) ? files : [files];
-  return Promise.all(list.map(async (file) => {
-    const ext = path.extname(file.originalname).toLowerCase();
-    const filename = `${Date.now()}-${uuidv4()}${ext}`;
-    const url = await uploadBuffer(file.buffer, filename, file.mimetype);
-    return { ...file, filename, url };
+  return list.map(file => ({
+    url: `/uploads/${file.filename}`,
+    filename: file.filename,
+    mimetype: file.mimetype
   }));
 };
 
-module.exports = { upload, uploadFilesToMinio };
+module.exports = { upload, getFileUrls };