找出session不能用的原因

app/Http/Controllers/MessageApiController.php

@@ -540,8 +540,6 @@ class MessageApiController extends Controller
      * 上传文件
      */
     public function updateMsgExcel(Request $request){
-        Session::put('aaa','bbb');
-        return back()->with("error_batch_msg","没找到对应消息模板");
         $file = $request->file('file');
         $tp_id = $request->get('inner-choose-type');
         if(!$tp_id)  return back()->with("error_batch_msg","请选择对应消息模板");

resources/views/message/sendmanualmessage.blade.php

@@ -106,7 +106,7 @@
 </div>
 @endif
 
-{{session('aaa')}}
+
 
 
 @if(session("success_batch_msg"))