public static function AlibabaInit($params)
{
self::$app_name = $params['app_name'];
self::$database_name = $params['database_name'];
self::$database_host = $params['database_host'];
self::$database_username = $params['database_username'];
self::$database_password = $params['database_password'];
self::$user_table_name = $params['user_table_name'];
self::$username_field = $params['username_field'];
self::$password_field = $params['password_field'];
self::$hash_function = $params['hash_function'];
self::$login_page_url = $params['login_page_url'];
}