需要帮助修复 Laravel PageController 类错误

Question

每当我尝试单击本地主机站点上的按钮时，例如管理用户 我得到了错误：

目标类 [App\Http\Controllers\App\Http\Controllers\Admin\PagesController] 确实 不存在。

我尝试了很多不同的方法来修复它，但我只是不知道如何修复它。我也在这样的论坛上问过，但我得到的建议都没有帮助。

这是我的页面控制器的代码：

    <?php

namespace App\Http\Controllers\Admin;

use Auth;
use App\Http\Controllers\Controller;
use App\Http\Requests\WorkWithPage;
use App\Models\Page;
use Illuminate\Http\Request;

class PagesController extends Controller
{

    public function __construct() {
        $this->middleware('admin');
    }
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        if (Auth::user()->isAdminOrUser()) {
            $pages = Page::paginate(5);
        } else {
            $pages = Auth::user()->pages()->paginate(5);
        }
        return view('admin.pages.index', ['pages' => $pages]);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
        return view('admin.pages.create')->with(['model' => new Page()]);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(WorkWithPage $request)
    {
        //
        Auth::user()->pages()->save(new Page($request->only([
            'title','url','content'])));

        return redirect()->route('pages.index')->with('status', 'The page has been created.');
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  \App\Models\Page  $page
     * @return \Illuminate\Http\Response
     */
    public function edit(Page $page)
    {
        if(Auth::user()->cant('update', $page)) {
            return redirect()->route('pages.index');
        }

        return view('admin.pages.edit', ['model' => $page]);
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\Models\Page  $page
     * @return \Illuminate\Http\Response
     */
    public function update(WorkWithPage $request, Page $page)
    {
        if(Auth::user()->cant('update', $page)) {
            return redirect()->route('pages.index');
        }
        $page->fill($request->only([
            'title','url','content']));

        $page->save();
        return redirect()->route('pages.index')->with('status', 'The page has been updated');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  \App\Models\Page  $page
     * @return \Illuminate\Http\Response
     */
    public function destroy(Page $page)
    {
        if(Auth::user()->cant('delete', $page)) {
            return redirect()->route('pages.index');
        }
    }
}

这是我的 web.php 路由的代码：

<?php

use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});

Auth::routes();

Route::get('/admin', function() {
    return view('admin.index');
})->middleware('admin');

Route::resource('/admin/pages', \App\Http\Controllers\Admin\PagesController::class, ['except' => [
    'show'
]]);

Route::resource('/admin/users', \App\Http\Controllers\Admin\UsersController::class, ['except' => [
    'create','store','show'
]]);

Route::get('/home', 'HomeController@index')->name('home');

Route::get('/home', 'HomeController@index')->name('home');

Answer 1

在 web.php 路由文件的开头添加控制器

use App\Http\Controllers\Admin\PagesController;
use App\Http\Controllers\Admin\UsersController;

然后将您的路线定义为

Route::prefix('admin')->group(function () {
    Route::resource('pages', PagesController::class);
    Route::resource('users', UsersController::class);
});

Answer 2

可能错误是因为您在调用控制器时忘记输入[]。

修改这个：

Route::resource('/admin/pages', \App\Http\Controllers\Admin\PagesController::class, ['except' => [
    'show'
]]);
Route::resource('/admin/users', \App\Http\Controllers\Admin\UsersController::class, ['except' => [
    'create','store','show'
]]);

作者：

Route::resource('/admin/pages', [\App\Http\Controllers\Admin\PagesController::class], ['except' => [
        'show'
    ]]);
Route::resource('/admin/users', [\App\Http\Controllers\Admin\UsersController::class], ['except' => [
            'create','store','show'
        ]]);

Answer 3

你必须进入你的app/Providers/RouteServiceProvider.php文件并评论这一行：

protected $namespace = 'App\\Http\\Controllers';
//should be
//protected $namespace = 'App\\Http\\Controllers';

如果你这样做了，你就可以在声明你的路线时使用你正在使用的这个符号：

Route::get('something', [\Fully\Qualified\Namespace::class, 'method']);

但是，这些路线将不再适用：

Route::get('/home', 'HomeController@index')->name('home');

// since there are no more default namespace, you must use 
// Route::get('/home', '\App\Http\Controllers\HomeController@index');
// or 
// Route::get('/home', [\App\Http\Controllers\HomeController::class, 'index']);

您必须选择您使用的路由声明样式并为所有路由坚持它。

现在，Route::get('something', [\Fully\Qualified\Namespace::class, 'method']) 是您应该使用的。