Yii架構redis+php實現秒殺效果的執行個體分析

廢話不多說了，直接給大家貼代碼了，具體代碼如下所示：

<?phpnamespace backend\controllers;use Yii;use yii\web\Controller;/*** */class GoodsController extends Controller{public $enableCsrfValidation=false;public function actionInfo(){$data=yii::$app->db->createCommand("select * from goods ")->queryAll();return $this->render('index',['data'=>$data]);}Public function actionXx(){$id=yii::$app->request->get('id');$data=yii::$app->db->createCommand("select * from goods where id='$id'")->queryOne();return $this->render('info',['data'=>$data]);}Public function actionAdd(){$a=yii::$app->redis;if (Yii::$app->request->isPost){$data=yii::$app->request->post();$res=yii::$app->db->createCommand()->insert('goods',$data)->execute();if($res){for ($i=0; $i <$data['counts'] ; $i++){ $a->lpush('goods',1);}return $this->redirect(array('goods/info'));}else{echo "添加失敗";}}else{return $this->render('add');}}public function actionOrder(){$redis=yii::$app->redis;$count=$redis->lpop('goods');if(empty($count)){echo "庫存不足";die;}$res=yii::$app->db->createCommand("update goods set counts=counts-1 where id=1 and counts>0")->execute();if($res){echo "秒殺成功";}else{echo "秒殺失敗";}}}?>