控制器不存在:4248

        if ($this->param['auto_search']) { 
            $controller = $this->autoFindController($module, $path); 
        } else { 
            // 解析控制器 
            $controller = !empty($path) ? array_shift($path) : null; 
        } 
        if ($controller && !preg_match('/^[A-Za-z][\w|\.]*$/', $controller)) { 
            throw new HttpException(404, 'controller not exists:' . $controller); 
        } 
        // 解析操作 
        $action = !empty($path) ? array_shift($path) : null; 
        // 解析额外参数 
        if ($path) { 
            if ($this->rule->getConfig('url_param_type')) { 
                $var += $path;