/**
  * APF主入口，实例化请求类、响应类，然后执行真正的框架流程
  */
 public function run()
 {
     if ($this->get_config('SESSION_START')) {
         apf_require_file('spider.php');
         if (!is_spider()) {
             $session_domain = $this->get_config('SESSION_DOMAIN');
             if (!$session_domain) {
                 $session_domain = $_SERVER['SERVER_NAME'];
             }
             ini_set('session.cookie_domain', $session_domain);
             session_start();
         }
     }
     $this->prepare();
     if (!$this->dispatch()) {
         echo "Error";
     }
 }

require ROOT_PATH . 'includes/cls_mysql.php';
$db = new cls_mysql($db_host, $db_user, $db_pass, $db_name);
$db->set_disable_cache_tables(array($ecs->table('sessions'), $ecs->table('sessions_data'), $ecs->table('cart')));
$db_host = $db_user = $db_pass = $db_name = NULL;
/* 创建错误处理对象 */
$err = new ecs_error('message.dwt');
/* 载入系统参数 */
$_CFG = load_config();
/* 载入语言文件 */
require ROOT_PATH . 'languages/' . $_CFG['lang'] . '/common.php';
if ($_CFG['shop_closed'] == 1) {
    /* 商店关闭了，输出关闭的消息 */
    header('Content-type: text/html; charset=' . EC_CHARSET);
    die('<div style="margin: 150px; text-align: center; font-size: 14px"><p>' . $_LANG['shop_closed'] . '</p><p>' . $_CFG['close_comment'] . '</p></div>');
}
if (is_spider()) {
    /* 如果是蜘蛛的访问，那么默认为访客方式，并且不记录到日志中 */
    if (!defined('INIT_NO_USERS')) {
        define('INIT_NO_USERS', true);
        /* 整合UC后，如果是蜘蛛访问，初始化UC需要的常量 */
        if ($_CFG['integrate_code'] == 'ucenter') {
            $user =& init_users();
        }
    }
    $_SESSION = array();
    $_SESSION['user_id'] = 0;
    $_SESSION['user_name'] = '';
    $_SESSION['email'] = '';
    $_SESSION['user_rank'] = 0;
    $_SESSION['discount'] = 1.0;
}