module not exists:static

 $config = self::init($module); 
 // 模块请求缓存检查 
 $request->cache( 
 $config['request_cache'], 
 $config['request_cache_expire'], 
 $config['request_cache_except'] 
 ); 
 } else { 
 throw new HttpException(404, 'module not exists:' . $module); 
 } 
 } else { 
 // 单一模块部署 
 $module =''; 
 $request->module($module); 
 } 
 // 设置默认过滤机制 
 $request->filter($config['default_filter']);