laravel5.4 服务提供者设置

  进行编辑laravel时，需要进行编辑的是App文件夹，在这里我们需要的是两个文件夹Contracts，该文件夹用于存放接口文件，Services中是服务文件，我们首先在Contracts中建立TestContract.php文件内容如下：

<?phpnamespace App\Contracts;interface TestContract{public function callMe($controller);}

在Services当中建立TestServce.php文件

<?phpnamespace App\Services;use App\Contracts\TestContract;class TestService implements TestContract {public function callMe($controller){// TODO: Implement callMe() method.echo "This is called by ".$controller;}}

在php终端中输入 

php artisan make:provider TestServiceProvider

然后编辑 register函数

<?phpnamespace App\Providers;use App\Services\TestService;use Illuminate\Support\ServiceProvider;class TestServiceProvider extends ServiceProvider{    /**     * Bootstrap the application services.     *     * @return void     */    public function boot()    {        //    }    /**     * Register the application services.     *     * @return void     */    public function register()    {    //绑定单例$this->app->singleton("test", function($app){return new TestService();});//使用接口进行绑定$this->app->bind('App\Contracts\TestContract', function(){return new TestService();});    }}

所以会有两种方式进行获得实例化，一个是App::make("test")获得TestService类的对象，另一种则是通过接口App\Contracts\TestContract获得TestService类的对象

这样就OK了，接下来就做的是创建一个controller

php artisan make:controller TestController

接下来看下TestController

<?phpnamespace App\Http\Controllers;use App\Contracts\TestContract;use Illuminate\Http\Request;class TestController extends Controller{    //public function __construct(TestContract $test) {$this->test = $test;}public function index(){//$test = \App::make("test");$this->test->callMe("test");}}

这样就通过服务提供者调用了TestService！