如何处理令牌不匹配异常 [英] How to handle Token Mismatch Exception

问题描述

我打开了Laravel表单，并将其保留了很长时间(5-6小时)，或者使我的计算机处于休眠状态.长时间或从休眠状态恢复后，当我提交表单时，它会显示TokenMismatchException.

I opened a Laravel form and left it as it is for long time (5-6 hours) or hibernated my computer. After long time or after resuming from hibernate when I submit the form it shows a TokenMismatchException.

我自己没有任何_token字段.但是，Laravel会以每种形式添加_token字段.看起来像这样:

I don't have any _token field by my own. But a _token field is added by Laravel in every form. It looks like this:

<input name="_token" type="hidden" value="YLyMGdfLKZESo51SYUHLKAzC6MNRLOQc9D9e2RFq">

我知道存在一些令牌到期问题，但是向客户端显示这样的错误消息是很糟糕的.

I understand there is some token expiry issue, but it is bad to show a client an error message like this.

现在，如果令牌已过期，我想将我的应用程序重定向到登录页面或主页，或者显示自定义错误消息，而不是Laravel Token Mismatch错误.

Now, I want to redirect my application to the login page or home page if the token is expired, or show a custom error message instead of a Laravel Token Mismatch error.

注意:我不想增加令牌的过期时间.

Note: I don't want to increase token expire time.

推荐答案

所有异常均由App \ Exceptions \ Handler类处理

All exceptions are handled by the App\Exceptions\Handler class

请看一下 Laravel 5.1错误#render-方法 ，您会发现可以创建自定义 Exeption render，检查以下示例中的TokenMismatchException错误，该错误会将用户重定向到带有自定义消息的索引视图:

Taka a look at Laravel 5.1 errors#render-method you will find that you can create a custom Exeption render, check the following example for the TokenMismatchException error, that will redirect the user to index view with custom message :

public function render($request, Exception $e)
{
    if ($e instanceof \Illuminate\Session\TokenMismatchException) {
        return response()->view('index', ['message' => 'custom message'], 500);
    }
    return parent::render($request, $e);
}

希望这会有所帮助.

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