huahuibao/app/admin/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-backend',
    'basePath' => dirname(__DIR__),
    'bootstrap' => ['log'],
    'defaultRoute' => 'main/index',//默认控制器
    'controllerNamespace' => 'backend\controllers',
    'modules' => [],
    'components' => [
	    'user' => [
		    'identityClass' => 'common\models\xhAdmin',
		    'enableAutoLogin' => true,
		    'identityCookie' => [
		    	'name' => 'backendUser', // unique for backend
		    ],
		    'loginUrl' => ['main/login'],
	    ],
        'db' => [
	        'class' => 'yii\db\Connection',
	        'dsn' => 'mysql:host=47.99.122.246;dbname=huahuibao',
	        'username' => 'root',
	        'password' => 'zt20152008',
	        'charset' => 'utf8',
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
        'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
            	'<controller:\w+>/<action:\w+>'=>'<controller>/<action>',
            ],
        ],
    ],
    'params' => $params,
]

;