修改文件上传

manage-server/app/Http/Controllers/CommonController.php

     public function upload(Request $request)
     {
         try {
-            $photo = $request->file('photo');
-            if ($photo->isValid()) {
+            dd($request->input('photo'));
+            if ($request->hasFile('photo') && $request->file('photo')->isValid()) {
                 $photo = $request->file('photo');
                 $extension = $photo->extension();
                 $store_result = $photo->store('photo');