tornado

tornado python

install

pip install --user tornado

more info about tornado en
more info about tornado zh

hello world

import sys
import tornado.ioloop
import tornado.web
reload(sys)
sys.setdefaultencoding('utf8')
class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("hello world")
if __name__ == '__main__':
    app = tornado.web.Application([("/", MainHandler)])
    app.listen(8080)
    tornado.ioloop.IOLoop.instance().start()

打开浏览器输入 http://localhost:8080/ 查看页面。

URL范式映射

import sys
import tornado.ioloop
import tornado.web
reload(sys)
sys.setdefaultencoding('utf8')
class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("You requestd the main page")
class StoryHandler(tornado.web.RequestHandler):
    def get(self, story_id):
        self.write("You requested the story %s" % story_id)
if __name__ == '__main__':
    app = tornado.web.Application([("/", MainHandler), ('/story/([0-9]+)', StoryHandler)]) 
    # 括号中的正则表示式[0-9]+匹配的字符串传入StoryHandler作为get的参数
    app.listen(8080)
    tornado.ioloop.IOLoop.instance().start()

打开浏览器输入 http://localhost:8080/ 查看页面。