Repository 模式主要思想是建立一个数据操作代理层,把controller里的数据操作剥离出来,这样做有几个好处:
建立相应的文件夹
在 app 文件夹里新建文件夹 Repositories,我们的相关代码都会放到这个文件夹里。然后在这个文件夹里新建一个 Interfaces 文件夹,用来放接口。
建立一个接口
在上面的Interfaces目录新建一个文件UserInterface.php
<?phpnamespace App\Repositories\Interfaces; interface UserInterface{public function get_user($user_id);}
建立一个接口对应的实现
<?phpnamespace App\Repositories;use App\Entity\User;use App\Repositories\Interfaces\UserInterface; class UserRepository Implements UserInterface{public function get_user($user_id){$user = User::find($user_id);return $user;}}
这里是接口的实现定义你的业务逻辑
在ServiceProvider中绑定接口
打开app/Providers/AppServiceProvider, 在register()加入代码:
<?php namespace App\Providers; use Illuminate\Support\ServiceProvider; class AppServiceProvider extends ServiceProvider{/** Register any application services.** @return void*/ public function register() { $this->app->bind('App\Repositories\Interfaces\UserInterface', 'App\Repositories\UserRepository' );}}
ServiceProvider 是 Laravel IOC 容器实现动态换接口实现的地方,所以我们在这里绑定一下,这样我们在使用的时候,不直接使用接口实现,而是用 ioc 容器解析接口,它会帮你自动找到对应好的实现。 这就意味着,以后需要更换实现,可以在这里更换。
使用仓库
<?phpnamespace App\Http\V1_0\Controllers\Auth; use Illuminate\Http\Request;use App\Http\V1_0\Controllers\ApiController;use App\Repositories\Interfaces\UserInterface; class LoginController extends ApiController{ public function __construct(UserInterface $User) { $this->User = $User;} public function qqlogin(Request $request){ $user_id=$request->id; $user = $this->User->get_user($user_id);}}
在这里使用了依赖注入

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