Laravel错误将Datatable从视图传递到控制器时未经身份验证

Question

Hello i'm trying to pass Datatable from view to my controller. Here is my Datatable code in view :

<div class="table-responsive">
  <table id="example1" class="table table-bordered table-hover display">
    <thead>
      <tr>
        <th><input type="checkbox" name="select_all" value="1" id="example-select-all" /></th>
        <th>No</th>
        <th>Id</th>
        <th>Exemplar</th>
        <th width="40%">Title</th>
      </tr>
    </thead>
    <tbody id="bookTable"></tbody>
  </table>
</div>

And here is my javascript code :

$('#printLabel').click(function(e) {
    e.preventDefault();
    $.post("{{ url('admin/printselectedlabel') }}",
        //$('#searchForm').serialize())
        table1.$('input,select,textarea').serialize()).fail(function(data) {
        alert(data.responseJSON.error);
    });
});

The codes above gave me error : {error: "Unauthenticated."}. Also, i'm not sure if "table1.$('input,select,textarea').serialize())" is the right why to pass datatable to controller.

Here is my route :

Route::group(['prefix' => 'admin'], function () {

Route::post('/printselectedlabel',           'Admin\PrintLabelController@printSelectedLabel');});

I havent add any code yet inside the printSelectedLabel() function inside the PrintLabelController

 public function __construct()
{
     $this->middleware('admin'); 
}public function printSelectedLabel(Request $request){

}