Symfony服务

1. 作者QQ：67065435 QQ群：821635552

2. 服务的创建

   # 创建Bundle
   php bin/console generate:bundle --env=dev
   Bundle name:TestBundle
   
   # 修改TestBundle\Resources\config\services.yml
   services:
       # 服务名
       user_login:
           # 服务文件路径
           class: TestBundle\Services\Login
           # 服务中传递服务(以Orm)为例
           arguments: ["@doctrine.orm.default_entity_manager"]
   
   # 创建TestBundle\Resources\config\config.yml
       # TestBundle\Resources\config\config.yml
       # 登录相关的配置
       key1: val1
       key2: val2
   
   # 创建服务文件TestBundle\Services\Login.php
   <?php
   
   namespace TestBundle\Services;
   
   use Symfony\Component\Yaml\Yaml;
   
   class Login
   {
       private $orm;
       private $config;
   
       /**
        * 构造函数
        */
       public function __construct($orm)
       {
           //服务中调用传递过来的服务
           $this->orm = $orm;
       }
   
       /**
        * 用户登陆
        * @param $user_name
        * @param $password
        */
       public function userLogin($user_name, $password)
       {
           ...
       }
   
       /**
        * 析构函数
        */
       public function __destruct(){
           unset($this->orm);
           unset($this->config);
       }
   }
   

3. 服务中调用服务

   Symfony服务中传递、调用服务上文(步骤1)已经说明，不在多余描述
   

4. Symfony控制器中调用服务

   <?php
   
   namespace TestBundle\Controller;
   
   class UserController extends Controller
   {
       ...
       public function UserLoginAction()
       {
           //调用登录服务
           $user_login = $this->get("user_login");
       }
   }
   

5. 命令行中调用服务

   $user_login = $this->getContainer()->get("user_login");
   

6. Symfony控制器 构造函数construct中调用服务

   在src/TestBundle/TestBundle.php添加如下代码
   
   use Symfony\Component\DependencyInjection\ContainerInterface;
   
   ...
   
   private static $containerInstance = null;
   
   public function setContainer(ContainerInterface $container = null)
   {
       parent::setContainer($container);
       self::$containerInstance = $container;
   }
   
   public static function getContainer()
   {
       return self::$containerInstance;
   }
   
   构造函数调用:
   use TestBundle\TestBundle;
   
   $rbac = TestBundle::getContainer()->get('user_login');