Laravel 5.3 Route::get() returns 错误 Class [classname] 不存在

Question

我是 Laravel 的新手，这是我第一次创建控制器。我也为类似问题搜索了几个小时，但找不到任何适合我的解决方案。

当我还没有使用控制器时，我可以使用 app/Providers/RouteServiceProvider 中的这段代码显示页面。php:

    Route::get('/', function(){
        if(View::exists('pages.index'))
            return view('pages.index');
        else
            return view('errors.404',['xp'=>'pages/index']);
    });

当我创建一个控制器并将上面的代码块替换成这个时，问题开始了：

    Route::get('/', 'SiteController@index');

使用上面的代码后，我得到了这个错误：

ReflectionException in Container.php line 749: Class SiteController does not exist

这是我的完整代码：

里面app/Providers/RouteServiceProvider.php:

<?php
namespace App\Providers;
use Illuminate\Support\Facades\Route;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\View;

class RouteServiceProvider extends ServiceProvider{
    protected $namespace = 'App\Http\Controllers';
    public function boot(){
        parent::boot();
    }

    public function map(){
        $this->mapApiRoutes();
        $this->mapWebRoutes();
    }

    protected function mapWebRoutes(){
        Route::group([
            'middleware' => 'web',
            'namespace' => $this->namespace,
        ], function ($router) {
            require base_path('routes/web.php');
        });

        /*site view*/
        Route::get('/', 'SiteController@index');
    }
    protected function mapApiRoutes(){
        Route::group([
            'middleware' => 'api',
            'namespace' => $this->namespace,
            'prefix' => 'api',
        ], function ($router) {
            require base_path('routes/api.php');
        });
    }
}

里面app/Http/Controllers/SiteController.php

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;

class SiteController extends Controller{
    public function index(){
        $this->check_page(['pages.index']);
    }

    public function check_page($page){
        $xp = str_replace('.','/',$page);
        if(View::exists($page))
            return view($page);
        else
            return view('errors.404',$xp);
    }
}

也许我只是个笨蛋（好吧），但我无法从这个 "Greek" Laravel Documentation 中找到任何对我有帮助的东西。

我希望有人以前遇到过这个问题并可以分享他们的解决方案。非常感谢。

Answer 1

首先运行命令composer dump-autoload

如果它不起作用，请按照以下步骤操作：

第 1 步：在 routes\web.php 内创建路线 Route::get('/', 'SiteController@index');

第 2 步：使用 cmd 创建控制器，例如 php artisan make:controller SiteController

里面：app/Providers/RouteServiceProvider.php应该是这样的：

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Route;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;

class RouteServiceProvider extends ServiceProvider
{
    /**
     * This namespace is applied to your controller routes.
     *
     * In addition, it is set as the URL generator's root namespace.
     *
     * @var string
     */
    protected $namespace = 'App\Http\Controllers';

    /**
     * Define your route model bindings, pattern filters, etc.
     *
     * @return void
     */
    public function boot()
    {
        //

        parent::boot();
    }

    /**
     * Define the routes for the application.
     *
     * @return void
     */
    public function map()
    {
        $this->mapWebRoutes();

        $this->mapApiRoutes();

        //
    }

    /**
     * Define the "web" routes for the application.
     *
     * These routes all receive session state, CSRF protection, etc.
     *
     * @return void
     */
    protected function mapWebRoutes()
    {
        Route::group([
            'middleware' => 'web',
            'namespace' => $this->namespace,
        ], function ($router) {
            require base_path('routes/web.php');
        });
    }

    /**
     * Define the "api" routes for the application.
     *
     * These routes are typically stateless.
     *
     * @return void
     */
    protected function mapApiRoutes()
    {
        Route::group([
            'middleware' => ['api', 'auth:api'],
            'namespace' => $this->namespace,
            'prefix' => 'api',
        ], function ($router) {
            require base_path('routes/api.php');
        });
    }
}

内部：app/Http/Controllers/SiteController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class SiteController extends Controller
{
    public function index() {
        return view('pages.index');
    }
}

在里面创建视图页面： resources/views/pages/index.blade.php

运行服务器使用 cmd php artisan serve

希望对您有所帮助！

Laravel 5.3 Route::get() returns 错误 Class [classname] 不存在

Laravel 5.3 Route::get() returns error Class [classname] does not exist

php

model-view-controller

routes

laravel-5.3