你不应该。这是反模式。如果你在一个控制器中有一个方法，你需要在另一个控制器中访问，那么这是你需要重构的标志。

考虑将方法重构到一个服务类中，然后可以在多个控制器中实例化该服务类。所以如果你需要为多个模型提供打印报告，你可以这样做:

class ExampleController extends Controller
{
    public function printReport()
    {
        $report = new PrintReport($itemToReportOn);
        return $report->render();
    }
}

\App::call('App\Http\Controllers\MyController@getFoo')

这里trait完全模拟了laravel路由器的运行控制器(包括对中间件和依赖注入的支持)。仅在5.4版本中测试

<?php

namespace App\Traits;

use Illuminate\Pipeline\Pipeline;
use Illuminate\Routing\ControllerDispatcher;
use Illuminate\Routing\MiddlewareNameResolver;
use Illuminate\Routing\SortedMiddleware;

trait RunsAnotherController
{
    public function runController($controller, $method = 'index')
    {
        $middleware = $this->gatherControllerMiddleware($controller, $method);

        $middleware = $this->sortMiddleware($middleware);

        return $response = (new Pipeline(app()))
            ->send(request())
            ->through($middleware)
            ->then(function ($request) use ($controller, $method) {
                return app('router')->prepareResponse(
                    $request, (new ControllerDispatcher(app()))->dispatch(
                    app('router')->current(), $controller, $method
                )
                );
            });
    }

    protected function gatherControllerMiddleware($controller, $method)
    {
        return collect($this->controllerMidlleware($controller, $method))->map(function ($name) {
            return (array)MiddlewareNameResolver::resolve($name, app('router')->getMiddleware(), app('router')->getMiddlewareGroups());
        })->flatten();
    }

    protected function controllerMidlleware($controller, $method)
    {
        return ControllerDispatcher::getMiddleware(
            $controller, $method
        );
    }

    protected function sortMiddleware($middleware)
    {
        return (new SortedMiddleware(app('router')->middlewarePriority, $middleware))->all();
    }
}

然后将它添加到类中并运行控制器。注意，依赖注入将与当前路由一起分配。

class CustomController extends Controller {
    use RunsAnotherController;

    public function someAction() 
    {
        $controller = app()->make('App\Http\Controllers\AnotherController');

        return $this->runController($controller, 'doSomething');
    }
}

//In Controller A <br >
public static function function1(){

}


//In Controller B, View or anywhere <br>
A::function1();

你可以通过实例化它并调用doAction来访问控制器:(put use Illuminate\Support\Facades\App;在控制器类声明之前)

$controller = App::make('\App\Http\Controllers\YouControllerName');
$data = $controller->callAction('controller_method', $parameters);

还要注意，这样做将不会执行该控制器上声明的任何中间件。

晚回复，但我一直在寻找这个时间。这现在可以用一种非常简单的方式实现。

如果没有参数

return redirect()->action('HomeController@index');

与参数

return redirect()->action('UserController@profile', ['id' => 1]);

文档:https://laravel.com/docs/5.6/responses # redirecting-controller-actions

在5.0中，它需要完整的路径，现在它简单多了。