一：環境配置

開發環境：lnmp
開發框架：Yii2.0

二：目的

1.實現業務流程的清晰化

2.實現功能的高可複用性

3.實現業務的高可擴充套件性

4.可在web app，console app， api等形式中自由遷移

三：實現思路

1.針對不同的業務流程，定製不同的服務；

2.服務是由元件組合而成，單個元件有一個選擇器，用於選擇元件的不同功能，選擇器會內建幾個通用型，還可以自定義實現，從而保證功能變化的靈活性；

3.服務會註冊一個數據介面卡，用於適配不同的資料來源，保證功能元件獲取資料的統一，從而達到功能元件複用目的；

4.服務會註冊一個互動介面卡，用於適配不同的互動方式，保證互動方式的靈活性。

四：UML類圖

//下面是實現的部分程式碼例項
class TestOneController extends BaseController
{
    public function actionCreate()
    {
 $dataAdapter = new DataAdapter();//未實現
        $createOrderService = \Yii::$app->get('create-order');
 $createOrderService->setDataAdapter($dataAdapter);//未實現
        $createOrderService
 
->setOrderComponents(
            [
                'save-test-one' => [
                    'class' => 'app\services\order\components\SaveTestOne',
                    'selector' => 'app\services\order\selectors\GeoSelector',
                ]
            ]
        );

        $createOrderService
 
->setInteraction([
            'save-test-one' => function () {
                return 'error';
            },
            'success' => function () {
                return 'success';
            }
        ]);

        return $createOrderService->run();
    }
}

1.服務實現
abstract class AbstractOrderService extends ServiceLocator
{
    protected $orderComponentList = [];

    public function run()
    {
        try {
            foreach ($this->orderComponentList as $each) {
                $object = $this->get($each);
                $object->execute();
            }
        } catch(Exception $e) {
            throw new Exception($e->getMessage());
        }
    }

    public function setOrderComponent($id, $definition)
    {
        array_push($this->orderComponentList, $id);
        $this->set($id, $definition);
    }

    public function setOrderComponents($components)
    {
        foreach ($components as $id => $component) {
            $this->setOrderComponent($id, $component);
        }
    }
}

class CreateOrderService extends AbstractOrderService
{
}

2.功能元件實現
abstract class AbstractComponent extends Component
{
    public $selector = null;

    final public function execute()
    {
        if (!is_null($this->selector) && is_callable($this->selector, true)) {
            $selector = Yii::createObject([
                'class' => $this->selector,
                'component' => $this,
            ]);
            $className = $selector->execute();
            $object = Yii::createObject($className);
            return $object->run();
        } else {
            return $this->run();
        }
    }

    abstract public function run();
}

class SaveTestOne extends AbstractComponent
{
    public function run()
    {
        var_dump('abcdefg!');
    }
}

class BrSaveTestOne extends AbstractComponent
{
    public function run()
    {
        var_dump('BrSaveTestOne');
    }
}

3.選擇器實現
abstract class AbstractSelector extends Component
{
    public $component;

    abstract public function execute();
}

class GeoSelector extends AbstractSelector
{
    public function execute()
    {
        return 'app\services\order\components\BrSaveTestOne';
    }
}

4.資料介面卡實現
未完成

5.互動介面卡實現
未完成

以上是比較簡陋的思路體現，語言表達有不近如意之處，還請勿怪！