Question

我在 PHP 和 Laravel 中绝对是新手，我遇到以下问题。

从我的观点来看，我通过JQuery通过以下代码执行AJAX POST 请求：

jQuery.ajax({
  url: '/doSearch',
  type: 'POST',
  dataType: 'json',
  //data: $form.serialize(),
  success: function(data){
   console.info('ssssssssssiiii',data);
     },
     error: function(data, b){
   console.info('erroreeeeee');
     }
 });

这个 POST 请求由这个简单的控制器方法处理：

public function doSearch(){
    echo 'SEARCHED';
}

必须将视图返回 SEARCHED 字符串。

问题是我收到此错误消息：

http://localhost:8000/doSearch 500 (Internal Server Error)

由 TokenMismatchException 引发的此异常创建，在Laravel stackrace中我可以看到如下内容：

in VerifyCsrfToken.php line 68
at VerifyCsrfToken->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in ShareErrorsFromSession.php line 49
at ShareErrorsFromSession->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in StartSession.php line 64
at StartSession->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in AddQueuedCookiesToResponse.php line 37
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in EncryptCookies.php line 59
at EncryptCookies->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in Pipeline.php line 104
at Pipeline->then(object(Closure)) in Router.php line 644
at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 618
at Router->dispatchToRoute(object(Request)) in Router.php line 596
at Router->dispatch(object(Request)) in Kernel.php line 267
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request)) in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in CheckForMaintenanceMode.php line 46
at CheckForMaintenanceMode->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in Pipeline.php line 104
at Pipeline->then(object(Closure)) in Kernel.php line 149
at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 116
at Kernel->handle(object(Request)) in index.php line 54
at require_once('C:\xampp\htdocs\www.betrivius.it\application\public\index.php') in server.php line 21

为什么呢？可能是什么问题呢？我该如何解决这个问题？

TNX

Answer 1

你应该setup token for Ajax requests。把它放在主要布局中：

<meta name="csrf-token" content="{{ csrf_token() }}">

并为每个请求执行此JS代码：

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

Answer 2

您需要将csrf-token附加到您的ajax请求中......以下是link

要添加一个，你可以使用csrf_token（）方法，它会自动创建一个名为'_token'的隐藏字段，其值设置为'token'，然后在ajax中你可以使用它的值。

例如。在您的表单中的html中，您需要添加：

{{csrf_token()}}

和ajax：

jQuery.ajax({
  url: '/doSearch',
  type: 'POST',
  dataType: 'json',
  //data: $form.serialize(),
  success: function(data){
   console.info('ssssssssssiiii',data);
     },
     error: function(data, b){
   console.info('erroreeeeee');
     },
   beforeSend:function(xhr){
      xhr.setRequestHeader('X-CSRF-TOKEN',$('_token').val());
   }
 });

Answer 3

如果您正在编码为.php页面而不是.html页面

试试这个：

<meta name="csrf-token" content="<?php echo csrf_token(); ?>">

代替：

<meta name="csrf-token" content="{{ csrf_token() }}">

它对我有用。

当我尝试使用Laravel控制器方法处理AJAX请求时，为什么会出现此异常？

3 个答案: