Yii中特殊行为ActionFilter如何使用

Yii中特殊行为ActionFilter如何使用？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。

新建 app\filters\LoggingFilter 继承 yii\base\ActionFilter

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

<&#63;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

<&#63;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);
 }
}

测试

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.

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Yii中特殊行为ActionFilter如何使用

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