Yii2 模块路由

我正在 yii2 中编写一个 api 模块并使用子模块进行版本控制。问题是我无法访问子模块中的页面，我只是得到404。这就是我在配置中描述的方式：

'modules' => [
    'api' => [
        'basePath' => '@app/api',
        'class' => app\api\ApiModule::class,
        'modules' => [
            'v1' => [
                'basePath' => '@app/api/v1',
                'class' => app\api\v1\V1Module::class,
            ]
        ],
        'components' => [
            'request' => [
                'class' => 'yii\web\Request',
                'parsers' => [
                    'application/json' => 'yii\web\JsonParser',
                ],
                'enableCsrfValidation' => false,
                'enableCsrfCookie' => false,
            ],
            'response' => [
                'class' => 'yii\web\Response',
                'formatters' => [
                    \yii\web\Response::FORMAT_JSON => [
                        'class' => 'yii\web\JsonResponseFormatter',
                        'prettyPrint' => YII_DEBUG,
                        'encodeOptions' => JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE
                    ]
                ]
            ]
        ]
    ],
],
...
'urlManager' => [
        'enablePrettyUrl' => true,
        'enableStrictParsing' => true,
        'showScriptName' => false,
        'rules' => [
            ['class' => 'yii\rest\UrlRule', 'controller' => ['api/v1/user']],

            '/' => 'site/index',
        ],
    ],

需要你的帮助。