laravel5.1接收ajax数据

前台：

     $.ajax({
         type: 'POST',
         url: '{!! url('aw/data') !!}',
         data:{'_token':'<?php echo csrf_token() ?>','option':1},
         dataType: 'json',
         success: function (data) {
             alert(data);
         },
         error: function () {
             alert("error")
         }
     });

后台:

 public function postData()
 {
     $request = Input::all();
     //todo something and return json data
     //e.g return the request data follow this:
     return json_encode($request);
 }

参考:https://segmentfault.com/q/1010000008852823