抱歉问一个新手问题,但我找不到任何关于如何实际使用服务提供者的示例(Laravel文档仅显示如何创建它们)。
由于Laravel的分页器无法使用分组,我想创建自己的分页器服务,但我不知道如何将该服务注入控制器。论坛控制器抛出异常:Class App\Http\Controllers\CustomPaginator does not exist
,但是我认为如果将服务类绑定到服务容器,则可以使用自定义名称解析它?
以下是文件:
app/Http/Controllers/For
<?php
namespace App\Http\Controllers;
use App\ForumModel;
use Illuminate\Http\Request;
class Forum extends Controller
{
public function index($page = 1, CustomPaginator $paginator)
{
$topics = ForumModel::orderBy("sticky", "DESC")->orderBy("lastpost", "DESC");
return view("forum", ["topics" => $topics]);
}
}
app/Providers/CustomPaginatorServiceProvider.php
<?php
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
class CustomPaginatorServiceProvider extends ServiceProvider
{
/**
* Bootstrap the application services.
*
* @return void
*/
public function boot()
{
//
}
/**
* Register the application services.
*
* @return void
*/
public function register()
{
$this->app->bind("CustomPaginator", CustomPaginatorServiceProvider::class);
}
public function a()
{
echo "It works!";
}
}
应用程序配置中的提供程序表
'providers' => [
/*
* Laravel Framework Service Providers...
*/
Illuminate\Auth\AuthServiceProvider::class,
Illuminate\Broadcasting\BroadcastServiceProvider::class,
Illuminate\Bus\BusServiceProvider::class,
Illuminate\Cache\CacheServiceProvider::class,
Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,
Illuminate\Cookie\CookieServiceProvider::class,
Illuminate\Database\DatabaseServiceProvider::class,
Illuminate\Encryption\EncryptionServiceProvider::class,
Illuminate\Filesystem\FilesystemServiceProvider::class,
Illuminate\Foundation\Providers\FoundationServiceProvider::class,
Illuminate\Hashing\HashServiceProvider::class,
Illuminate\Mail\MailServiceProvider::class,
Illuminate\Notifications\NotificationServiceProvider::class,
Illuminate\Pagination\PaginationServiceProvider::class,
Illuminate\Pipeline\PipelineServiceProvider::class,
Illuminate\Queue\QueueServiceProvider::class,
Illuminate\Redis\RedisServiceProvider::class,
Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,
Illuminate\Session\SessionServiceProvider::class,
Illuminate\Translation\TranslationServiceProvider::class,
Illuminate\Validation\ValidationServiceProvider::class,
Illuminate\View\ViewServiceProvider::class,
/*
* Package Service Providers...
*/
Laravel\Tinker\TinkerServiceProvider::class,
/*
* Application Service Providers...
*/
App\Providers\AppServiceProvider::class,
App\Providers\AuthServiceProvider::class,
// App\Providers\BroadcastServiceProvider::class,
App\Providers\EventServiceProvider::class,
App\Providers\RouteServiceProvider::class,
App\Providers\CustomPaginatorServiceProvider::class
],
CustomPaginatorServiceProvider
并在AppServiceProvider
中绑定了我的CustomPaginator。现在当我从app()
助手中调用它时,它按预期工作(我使用app()->make("CustomPaginator")
); 然而,尝试使用绑定名称进行依赖注入会抛出错误“Class App\Http\Controllers\CustomPaginator不存在”。我需要做什么才能将该服务注入到我的控制器方法中? - user8069675