Python-100-Days/Day61-65/code/hello-tornado/example03.py

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"""
example03.py - RequestHandler解析
"""
import os
import re
import tornado.ioloop
import tornado.web
from tornado.options import define, options, parse_command_line
# 定义默认端口
define('port', default=8000, type=int)
users = {}
class User(object):
"""用户"""
def __init__(self, nickname, gender, birthday):
self.nickname = nickname
self.gender = gender
self.birthday = birthday
class MainHandler(tornado.web.RequestHandler):
"""自定义请求处理器"""
def get(self):
# 从Cookie中读取用户昵称
nickname = self.get_cookie('nickname')
if nickname in users:
self.render('userinfo.html', user=users[nickname])
else:
self.render('userform.html', hint='请填写个人信息')
class UserHandler(tornado.web.RequestHandler):
"""自定义请求处理器"""
def post(self):
# 从表单参数中读取用户昵称、性别和生日信息
nickname = self.get_body_argument('nickname').strip()
gender = self.get_body_argument('gender')
birthday = self.get_body_argument('birthday')
# 检查用户昵称是否有效
if not re.fullmatch(r'\w{6,20}', nickname):
self.render('userform.html', hint='请输入有效的昵称')
elif nickname in users:
self.render('userform.html', hint='昵称已经被使用过')
else:
users[nickname] = User(nickname, gender, birthday)
# 将用户昵称写入Cookie并设置有效期为7天
self.set_cookie('nickname', nickname, expires_days=7)
self.render('userinfo.html', user=users[nickname])
def main():
"""主函数"""
parse_command_line()
app = tornado.web.Application(
handlers=[
(r'/', MainHandler),
(r'/register', UserHandler),
],
template_path=os.path.join(os.path.dirname(__file__), 'templates'),
)
app.listen(options.port)
tornado.ioloop.IOLoop.current().start()
if __name__ == '__main__':
main()