tornado自定义实现django include方法

tornado自定义实现django  include方法

---

• 自定义URLmethod模块

•  from Custom.errors import *
  
   def include(base_url, expand_url):
       # base_url必须是字符串类型
       if not isinstance(base_url, str):
           raise TypeError("base_url must be String type, but {} is not".format(str(base_url)))
  
       # 必须在拓展的urls里面有一个urlpatterns的对象,如果没有就会引发AttributeError
       getattr(expand_url, 'urlpatterns')
  
       if not isinstance(expand_url.urlpatterns, (list, tuple)):
           raise UrlError(
               "expand_url.urlpatterns must be a list or tuple, but {} is not".format(str(expand_url.urlpatterns)))
  
       urlpatterns = expand_url.urlpatterns
  
       new_urlpatterns = []
  
       for url in urlpatterns:
  
           items = []
           new_base_url = base_url + url[0]  # 将原始的url和拓展的url拼接
           items.append(new_base_url)
           items.append(url[1])
           new_urlpatterns.append(tuple(items))
  
       return new_urlpatterns
  
   def extend(*args):
       # 将所有的include元素拓展成新的列表
       urlpatterns = []
       for urlpattern in args:
           if isinstance(urlpatterns, list):
               urlpatterns.extend(urlpattern)
           else:
               raise UrlError
       return urlpatterns

• 自定方法的使用

•  from tornado.web import Application
   from tornado.ioloop import IOLoop
   from tornado.httpserver import HTTPServer
   from tornado.options import options, define
   from Custom.URL_method import include, extend
   from Robot import urls
  
   define('port', default=80, type=int)
  
   settings = {
       'template_path': 'templates',
       'static_path': 'static',
       'debug': True
   }
  
   urlpatterns = extend(
       include("", urls),
       include(r'/qrcode', urls),
   )
  
   app = Application(handlers=urlpatterns, **settings)
  
   if __name__ == '__main__':
       options.parse_command_line()
       http = HTTPServer(app)
       http.listen(options.port)
       IOLoop.current().start()

• 自定义url模块

•  from . import views
  
   urlpatterns = [
       (r'/index',  views.IndexHandler),
       (r'/test',  views.TestHandler)
   ]

• views模块

•  from tornado.web import RequestHandler
  
   class IndexHandler(RequestHandler):
       def get(self):
           self.write("hello")
  
   class TestHandler(RequestHandler):
       def get(self):
           self.write("test page")

• 效果展示
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