about Laravel 5.1,I cannot find data which I just saved in database，but when I refresh Web page,it can be found

There are two different methods in code1 and code2 to successfully save data in the database.However, the data can't be found after saving.but when I refresh the Web page,it can be found.

code1:

    $obj = new Object;
    $obj->object_id = $objectId;
    $obj->object_lt_x = $objX;
    $obj->object_lt_y = $objY;
    $obj->object_width = $objWidth;
    $obj->object_height = $objHeight;
    $obj->image_id = $imageId;
    $obj->type_id = $typeId;
    if ($obj->save()) {
        $obj_id = $obj->object_id;
        $success = array('status' => 1,'message' => $type_name.'标记成功！','obj_id' => $obj_id);
        return response()->json($success);
    } else {
        $error = array('status' => 0,'message' => $type_name.'标记失败！');
        return response()->json($error);
    }

code2:

    $objectId = $this->createGuid();
    $objWidth = 1;
    $objHeight = 1;
    $objX = 1;
    $objY = 1;
    $imageId = '258CCA7A-D239-7397-8948-5F744D06AD';
    $typeId = '866D7AB4-594D-CB20-7172-5A69DB3B26';

    $result = DB::insert('insert into objects (object_id, object_lt_x, object_lt_y, object_width,object_height,image_id,type_id) values (?, ?, ? , ? ,?,?,?)',
    [$objectId, $objX,$objY,$objWidth,$objHeight,$imageId,$typeId]);
    $object = DB::table('objects')->where('object_id',$objectId)->get();
    var_dump($object);

via Chebli Mohamed