'bootstrap' => ['log'],

'components' =>[

'log' => [

            'traceLevel' => YII_DEBUG ? 3 : 0, //级别

            'targets' => [

                'file' => [  //使用文件存储日志

                    'class' => 'yii\log\FileTarget',

                    'levels' => ['error', 'warning'],

                ],

                'legcc' =>[  //自定义模式 [例如发邮件、微信等]

                    'class' => 'app\components\LegccLogTarget',

                    'levels' => ['error', 'warning'],

                    'categories' => [

                        'yii\db\*',

                        'yii\web\*',

                        'yii\base\*',

                    ],

                    'except' => [

                        'yii\web\HttpException:404',

                    ],

                    'logVars' => [],

                ],

                'db' =>[ //使用数据库存储日志

                    'class' => 'yii\log\DbTarget',

                    'levels' => ['error', 'warning'],

                    'categories' => [

                        'yii\db\*',

                        'yii\web\*',

                        'yii\base\*',

                    ],

                    'except' => [

                        'yii\web\HttpException:404',

                    ],

                    'logVars' => ['_GET', '_POST',  '_COOKIE', '_SESSION', '_SERVER'],

                ],

            ],

        ],

]

namespace app\components;

use app\models\LanApi;

use Yii;

use yii\base\InvalidConfigException;

use yii\log\Target;

/**

 * DbTarget stores log messages in a database table.

 *

 */

class LegccLogTarget extends Target

{

    const CACHE_SENDTIME = 'legccLogTargetTime';

    /**

     * Initializes the DbTarget component.

     * This method will initialize the [[db]] property to make sure it refers to a valid DB connection.

     * @throws InvalidConfigException if [[db]] is invalid.

     */

    public function init()

    {

        parent::init();

    }

    /**

     * Stores log messages to .Weixin

     */

    public function export()

    {

        $cache = Yii::$app->cache;

        $lastSendTime = intval($cache->get(self::CACHE_SENDTIME));

        if((time() - $lastSendTime) < 100) {

            return false;

        }

        $emailArray  = [''];

        foreach ($this->messages as $message) {

            list($text, $level, $category, $timestamp) = $message;

            if (!is_string($text)) {

                if ($text instanceof \Throwable || $text instanceof \Exception){

                  $params  =[$emailArray, '程序异常 '.date('Y-m-d H:i:s', $timestamp), $text->getMessage().'<br/>'.$text->getFile() . ' ' . $text->getLine()];

                    $result = MailQueue.addToQueue($params);//发送邮件，返回结果

                    if($result['code'] == 0) {

                        $cache->set(self::CACHE_SENDTIME, time());

                    }

                }

            }

        }

    }

}