Laravel工廠模式問題

Question

我創建了一個名爲Provider

class Provider 
{ 

    private $provider; 

    public function __construct(ProviderInterface $provider) 
    { 
     $this->provider = $provider; 
    } 
} 

類在工廠類，我有這樣的：

class ProviderFactory 
{ 
    public static function adapt(string $provider) 
    { 
    switch ($provider) { 
      case 'ProviderOne': 
       return app(Provider::class, [app(ProviderOne::class)]); 
      case 'ProviderTwo': 
       return app(Provider::class, [app(ProviderTwo::class)]); 
     } 
    } 
} 

當調用ProviderFactory::adapt($request->provider)我得到一個錯誤：

Target [App\Services\ProviderInterface] is not instantiable while building [App\Services\Provider]. 

如果我理解正確，我需要bind()邏輯，因爲它需要知道什麼是雙nd到ProviderInterface。我需要在服務提供商中添加bind()邏輯嗎？

Answer 1

下方添加到您的服務提供商的寄存器功能我假設你的接口有命名空間，如下

$this->app->bind('App\Services\ProviderInterface'); 

Answer 2

不宜$provider是公開的？

class Provider 
{ 

    public $provider; 

    public function __construct(ProviderInterface $provider) 
    { 
    $this->provider = $provider; 
    } 
}