Yii中特殊行动ActionFilter的运用举措示例

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LoggingFilter 的功能: 在指定请求的 action 前后各记录一条日志

<?php

namespace app\filters;

use yii\base\ActionFilter;

class LoggingFilter extends ActionFilter
{
public function beforeAction($action)
{
parent::beforeAction($action);

// To do something
printf('This is a logging for %s\beforeAction.%s', $this->getActionId($action), PHP_EOL);

return true;
}

public function afterAction($action, $result)
{
parent::afterAction($action, $result);

// To do something
printf('This is a logging for %s\afterAction.%s', $this->getActionId($action), PHP_EOL);

return true;
}
}

新建 app\controllers\SystemController

<?php

namespace app\controllers;

use app\filters\LoggingFilter;

class SystemController extends \yii\web\Controller
{
public function behaviors()
{
parent::behaviors();

return [
'anchorAuth' => [
'class' => LoggingFilter::className(),
'only' => ['test', 'test-one'], // 仅对 'test'、'test-one' 生效
'except' => ['test-one'], // 排除 'test-one'
],
];
}

public function actionTestOne()
{
printf('This is a testing for %s.%s', $this->getRoute(), PHP_EOL);
}

public function actionTestTwo()
{
printf('This is a testing for %s.%s', $this->getRoute(), PHP_EOL);
}

public function actionTest()
{
printf('This is a testing for %s.%s', $this->getRoute(), PHP_EOL);
}
}

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请求 http://yii.test/index.php?r=system/test

This is a logging for test\beforeAction.
This is a testing for system/test.
This is a logging for test\afterAction.

请求 http://yii.test/index.php?r=system/test-one

This is a testing for system/test-one.

请求 http://yii.test/index.php?r=system/test-two

This is a testing for system/test-two.

Yii中特殊行为ActionFilter的使用方法示例

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Yii 中的 ActionFilter（过滤器）相当于 Laravel 中的 Middleware（中间件），beforeAction 相当于前置中间件，afterAction 相当于后置中间件。

来源：本站

链接：https://www.jb51.net/article/197626.htm