代码是laravel8.57里的，其它版本应该差异不会太大吧

​
    protected function sendRequestThroughRouter($request)
    {
        $this->app->instance('request', $request);
​
        Facade::clearResolvedInstance('request');
​
        $this->bootstrap();
​
        return (new Pipeline($this->app))
                    ->sen

......

继续阅读