前言: 启动一个tornado 服务器基本代码
1 class HomeHandler(tornado.web.RequestHandler): #创建 RequesHandler 对象,处理接收到的 http 请求 2 def get(self): 3 entries = self.db.query("SELECT * FROM entries ORDER BY published DESC LIMIT 5") 4 if not entries: 5 self.redirect("/compose") 6 return 7 self.render("home.html", entries=entries) 8 9 class Application(tornado.web.Application): #创建 Application 对象, 定义 setting 和 URL 映射规则 10 def __init__(self): 11 handlers = [ 12 (r"/", HomeHandler), 13 (r"/archive", ArchiveHandler), 14 ] 15 settings = dict( 16 blog_title=u"Tornado Blog", 17 template_path=os.path.join(os.path.dirname(__file__), "templates"), 18 static_path=os.path.join(os.path.dirname(__file__), "static"), 19 ui_modules={"Entry": EntryModule}, 20 xsrf_cookies=True, 21 debug=True, 22 ) 23 tornado.web.Application.__init__(self, handlers, **settings) #将参数设置传递到父类 Application中 24 25 26 def main(): 27 http_server = tornado.httpserver.HTTPServer(Application()) #传递 Application 对象,封装成 HTTPServer 对象 28 http_server.listen(8000) #启动 HTTPServer 监听,实际上 HTTPServer 继承自 TCPServer,是在TCPServer 中启动 listen Socket 端口 29 tornado.ioloop.IOLoop.instance().start() 获取全局IOLoop 单例,启动IOLoop 大循环
时间: 2024-10-11 06:22:15