update

router/fileRouter.js

@@ -28,7 +28,13 @@ const storage = multer.diskStorage({
     }
 })
 
-const upload = multer({ storage: storage })
+const upload = multer({
+    storage: storage, 
+    limits: {
+        fileSize: 100 * 1024 * 1024,       // 限制单个文件大小 
+        files: 5                 // 批量上传时限制文件数量（可选）
+    }
+})
 
 
 router.post('/upload', upload.single('file'), fileController.upload);