Laravel yajra datatable:无法从ajax调用控制器检索搜索参数

here :

视图中的HTML表:

  <form id="search-form" class="form-inline" method="POST" role="form" action="#">


      <select id="batch" name="batch">
        <option value="">Select</option>
        <option value="22">Skill Level CBE Dec 2018</option>
        <option value="2">Batch 2</option>

      </select>

      <button class="btn  btn-primary" type="submit">Search</button>

  </form>

     <table class="table table-striped table-bordered datatable" cellspacing="0" width="100%">

                                    <thead>

                                        <tr>



                                            <th>{{ getPhrase('S/N')}}</th>

                                            <th>{{ getPhrase('Batch')}}</th>
                                            <th>{{ getPhrase('Course')}}</th>
                                            <th>{{ getPhrase('Subject')}}</th>

                                            <th>{{ getPhrase('title')}}</th>

                                            <th>{{ getPhrase('otq_marks')}}</th>
                                            <th>{{ getPhrase('cr_marks')}}</th>

                                            <th>{{ getPhrase('total')}}</th>
                                            <th>{{ getPhrase('average')}}</th>




                                        </tr>

                                    </thead>



         </table>


        @section('footer_scripts')



         @include('common.datatables', array('route'=>URL_STUDENT_EXAM_GETATTEMPTS.$user->slug, 'route_as_url' => 'TRUE'))


        @stop

common.datatables , datatables.blade.php

$.ajaxSetup({
    headers: {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
        }
    });

     tableObj = $('.datatable').DataTable({
            processing: true,
            serverSide: true,
                retrieve :true,
            // cache: true,
            type: 'GET',

            ajax: {
             url: '{{ $routeValue }}',
             data: function (d) {
                 d.batch = $('#batch').val();

             }
         }



     });


    $('#search-form').on('submit', function(e) {
        tableObj.draw();
        e.preventDefault();
    });

ajax url值$routeValue引用 URL_STUDENT_EXAM_GETATTEMPTS

当我从 "batch" 下拉列表并按 submit 按钮,对路由进行ajax调用。在浏览器检查工具中,我看到在ajaxurl和我们的 batch 批量 控制器内的参数。

关于服务器端代码:

URL\学生\考试\尝试次数 用在刀刃上有价值 PREFIX.'exams/student/get-exam-attempts/'

而且在 route.php

Route::get('exams/student/get-exam-attempts/{user_slug}/{exam_slug?}', 'StudentQuizController@getExamAttemptsData');

public function getExamAttemptsData(Request $request,$slug, $exam_slug = '')
    {

    //body goes here 

    }

我使用了以下所有方法来获得 批量 控制器中的参数无效:

$request->get('batch')
$request->query('batch')
Input::get('batch')

如何检索 批量

编辑: 顺便说一句,我正在使用 use Illuminate\Http\Request; Request $request 控制器函数参数中的变量

编辑2: 浏览器检查工具将ajax请求url显示为:

http://localhost/lcbs/exams/student/get-exam-attempts/myuser123?draw=2列%5B0%5D%5Bdata%5D=0……搜索%5Bregex%5D=false& 批次=22 &1541684388689。

你看到了吗 批量 但在控制器内部,代码 $request->getQueryString() %2Fexams%2Fstudent%2Fget-exam-attempts%2Fmyuser123

以及 \URL::current() 显示http://localhost/lcbs/exams/student/get-exam-attempts/myuser123

也就是说 $request 缺少完整的查询字符串。

@阿德里安·赫尔南德斯·洛佩兹,我正在粘贴内核.php在这里:

namespace App\Http;

use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array
     */
    protected $middleware = [
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,

    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [
        'web' => [
            \App\Http\Middleware\EncryptCookies::class,
            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
            \Illuminate\Session\Middleware\StartSession::class,
            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
            \App\Http\Middleware\VerifyCsrfToken::class,
        ],

        'api' => [
            'throttle:60,1',
        ],
    ];

    /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used individually.
     *
     * @var array
     */
    protected $routeMiddleware = [
        'auth' => \App\Http\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'can' => \Illuminate\Foundation\Http\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,

        'role' => \Zizaco\Entrust\Middleware\EntrustRole::class,
        'permission' => \Zizaco\Entrust\Middleware\EntrustPermission::class,
        'ability' => \Zizaco\Entrust\Middleware\EntrustAbility::class,
       // 'adminOrGuest' => \App\Http\Middleware\AdminOrGuestMiddleware::class,

    ];
}