1、创建ErrorHandler，继承这个yiibaseErrorHandler抽象类，然后定义这个父类中的抽象方法
<?phpnamespace commoncomponentexception;/** * User: szliugx@gmail.com * Date: 2016/9/20 * Time: 14:24 */use yii;use yiibaseErrorHandler as BaseErrorHandler;use commoncomponentearlywarningEarlyWarning;class ErrorHandler extends BaseErrorHandler{ public $errorView = '@app/views/errorHandler/error.php'; public function renderException($exception) { if(Yii::$app->request->getIsAjax()){ exit( json_encode( array('code' =>$exception->getCode(),'msg' =>$exception->getMessage()) )); }else{ //将500的代码，发送监控预警 if(!empty($exception->getCode()) && $exception->getCode() ==8){ $params = []; $params['projectName'] = "oct-youban"; $params['level'] = 5; $params['title'] = "500：".$exception->getMessage(); $params['value'] = $exception->getCode(); $params['message'] = $exception->getFile()."：".$exception->getLine(); $params['bizcode'] = 8; $params['subcode'] = 8001; EarlyWarning::WarninApi($params); } echo Yii::$app->getView()->renderFile($this->errorView,['exception' => $exception,],$this); } }}2、创建视图文件 ： @app/views/errorHandler/error.php
<?php/** * User: szliugx@gmail.com * Date: 2016/9/20 * Time: 15:23 */?><!DOCTYPE html><html><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="format-detection" content="telephone=no"> <meta http-equiv="Expires" content="-1"> <meta http-equiv="Cache-Control" content="no-cache"> <meta http-equiv="Pragma" content="no-cache"> <title><?php if(!empty($exception->getCode())&&($exception->getCode() == 8)){echo "出错啦";}else{ echo $exception->getMessage();}?></title> <link href="/css/error.css" rel="stylesheet" 0="frontendassetsAppAsset"></head><body><div> <div class="status-icon icon-desk"></div> <div> <p><?php if(!empty($exception->getCode())&&($exception->getCode() == 8)){echo "出错啦";}else{ echo $exception->getMessage();}?></p> </div></div></body></html>3、修改应用的配置文件：@app/config/main.php
'errorHandler' => [ //'errorAction' => 'site/error', 'class' => 'commoncomponentexceptionErrorHandler', ],
效果如下：
500错误页：
404错误页：
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