logSystem-advance/frontend/config/main.php

<?php
$params = array_merge(
    require __DIR__ . '/../../common/config/params.php',
    require __DIR__ . '/../../common/config/params-local.php',
    require __DIR__ . '/params.php',
    require __DIR__ . '/params-local.php'
);

return [
    'id' => 'app-frontend',
    'language' =>'zh-CN',  //增加此行，默认使用中文
    'basePath' => dirname(__DIR__),
    'bootstrap' => ['log'],
    'controllerNamespace' => 'frontend\controllers',
    'components' => [
        'request' => [
            'csrfParam' => '_csrf-frontend',
        ],
        'user' => [
            'identityClass' => 'common\models\User',
            'enableAutoLogin' => true,
            'identityCookie' => ['name' => '_identity-frontend', 'httpOnly' => true],
        ],
        'session' => [
            // this is the name of the session cookie used for login on the frontend
            'name' => 'advanced-frontend',
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
        'db' =>   require __DIR__ . '/../../common/config/db.php',

        'urlManager' => [
            'enablePrettyUrl' => true,  //美化url==ture
            'enableStrictParsing' => false,  //不启用严格解析
            'showScriptName' => false,   //隐藏index.php
            'rules' => [
                '<module:\w+>/<controller:\w+>/<id:\d+>' => '<module>/<controller>/view',
                '<controller:\w+>/<id:\d+>' => '<controller>/view',
            ],
        ]
    ],
    'params' => $params,
];