def __init__(self, application, request, **kwargs):

super(RequestHandler, self).__init__()self.application = application
self.request = request
self._headers_written = False
self._finished = False
self._auto_finish = True
self._transforms = None  # will be set in _execute
self._prepared_future = None
self.path_args = None
self.path_kwargs = None
self.ui = ObjectDict((n, self._ui_method(m)) for n, m inapplication.ui_methods.items())
# UIModules are available as both `modules` and `_tt_modules` in the
# template namespace.  Historically only `modules` was available
# but could be clobbered by user additions to the namespace.
# The template {% module %} directive looks in `_tt_modules` to avoid
# possible conflicts.
self.ui["_tt_modules"] = _UIModuleNamespace(self,application.ui_modules)
self.ui["modules"] = self.ui["_tt_modules"]
self.clear()
self.request.connection.set_close_callback(self.on_connection_close)
self.initialize(**kwargs)

# -*- coding: utf-8 -*-
from tornado.ioloop import IOLoop
from tornado.web import Application, RequestHandler__author__ = 'Administrator'class BookRequestHandler(RequestHandler):def initialize(self, welcome):self.welcome = welcomedef get(self, *args, **kwargs):print(self.welcome)self.write(self.welcome)welcome = "**大学图书馆"
app = Application(handlers=[(r"/book", BookRequestHandler, dict(welcome=welcome)),
])def main():app.listen(8888)IOLoop.current().start()if __name__ == "__main__":main()

class BookRequestHandler(RequestHandler):def initialize(self, welcome,value2):print("initialize method:initilize some variables....")self.welcome = welcomeself.value2=value2def get(self, *args, **kwargs):#print(self.welcome + "\r\n" + "and value2 =" + self.value2)print("get method: Processing get Method...........")self.write(self.welcome + "\r\n" + "and value2 =" + self.value2)def set_default_headers(self):self._headers.add("custom_header1", "custom_header1")self._headers.add("custom_header2", "custom_header2")def prepare(self):print("prepare method:initilize some variables....")def on_finish(self):print("on_finish method:clear some memory or close database connection")

def get(self, *args, **kwargs):#print(self.welcome + "\r\n" + "and value2 =" + self.value2)print("get method: Processing get Method...........")#self.write(self.welcome + "\r\n" + "and value2 =" + self.value2)self.write("参数name的值为：" + self.get_argument("name", "liaofei"))

def post(self, *args, **kwargs):print(self.request.arguments)print("POS age：" + self.get_argument("age"))self.write("POS age：" + self.get_argument("age"))

def post(self, *args, **kwargs):print(self.request.query_arguments)print(self.request.arguments)print(self.request.body_arguments)print("POS age：" + self.get_argument("age"))self.write("POS age：" + self.get_argument("age"))

"""Resets all headers and content for this response."""
self._headers = httputil.HTTPHeaders({"Server": "TornadoServer/%s" % tornado.version,"Content-Type": "text/html; charset=UTF-8","Date": httputil.format_timestamp(time.time()),
})
self.set_default_headers()
self._write_buffer = []
self._status_code = 200
self._reason = httputil.responses[200]

def set_default_headers(self):self._headers.add("custom_header1", "custom_header1")self._headers.add("custom_header2", "custom_header2")

def write_error(self, status_code, **kwargs):self.write("oh,my god!出错啦！！！！请联系系统管理员。\n")self.write("呵呵，也没关系，我已经讲错误信息记录在日志中去了，系统管理员会看到的。\r\n")if "exc_info" in kwargs:self.write("错误信息为：\r\n")for line in traceback.format_exception(*kwargs["exc_info"]):self.write(line)self.finish()

def get(self, *args, **kwargs):# print(self.welcome + "\r\n" + "and value2 =" + self.value2)print("get method: Processing get Method...........")# self.write(self.welcome + "\r\n" + "and value2 =" + self.value2)# print(self.request.query_arguments)# print(self.request.arguments)# print(self.request.body_arguments)# self.write("参数name的值为：" + self.get_argument("name", "liaofei"))print(1/0)

class CookieRequestHandler(RequestHandler):def get(self, flag):if flag == '0':self.set_cookie("user", "liaofei")elif flag == '1':userCookie = self.get_cookie("user")self.write(userCookie)

settings = {"debug":False,"cookie_secret":"gagagaarwrslijwlrjoiajfoajgojowurwojrowjojgfoaguuuu9",
}app = Application(handlers=[(r"/book", BookRequestHandler, dict(welcome=welcome, value2=value2)),(r"/cookie/([0-1]+)", CookieRequestHandler),
], **settings)(r"/cookie/([0-1]+)", CookieRequestHandler),
], **settings)