视图

{!! Form::open(['url' => 'transaction/save','files' => true]) !!}

{!! Form::file('batch'); !!}

{!! Form::submit('Upload') !!}

{!! Form::close() !!}

调节器

public function saveBatch(Request $request)
 {
        $file = $request->batch;
        $path = $request->batch->extension();

        dd($path);
 }