python实现12306余票抓取功能

最近在自学python，基础学完后，就写了个抓取12306余票的功能，也参考了网上的一些资料。

大家如果也想通过这样的练习来提高自己的python，可以看看。

import re
	import requests
	import json
	class LeftTicketQuery:
	def queryStation(self):
	stationUrl = "https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.8971"
	requests.packages.urllib3.disable_warnings()
	response = requests.get(stationUrl, verify=False)
	stations = re.findall(u'([\u4e00-\u9fa5]+)\|([A-Z]+)', response.text)
	return dict(stations)
	def makeLeftTicketUrl(self, trainDate, fromStation, toStation, stations):
	fromStation = stations[fromStation]
	toStation = stations[toStation]
	print("fromStation : {} toStation : {}".format(fromStation, toStation))
	if fromStation == None or fromStation == "":
	return None
	if toStation == None or toStation == "":
	return None
	leftTicketUrl = "https://kyfw.12306.cn/otn/leftTicket/query?leftTicketDTO.train_date=" + trainDate + "&leftTicketDTO.from_station=" + fromStation + "&leftTicketDTO.to_station=" + toStation + "&purpose_codes=ADULT"
	print("leftTicketUrl : {}".format(leftTicketUrl))
	return leftTicketUrl
	def queryLeftTicket(self, leftTicketUrl, stationCodeName):
	requests.packages.urllib3.disable_warnings()
	response = requests.get(leftTicketUrl, verify=False)
	dictLeftTicket = json.loads(response.text)
	httpstatus = dictLeftTicket["httpstatus"]
	# 请求成功
	tickets = []
	if httpstatus == 200:
	data = dictLeftTicket["data"]
	result = data["result"]
	for line in result:
	cq = line.split("|")
	ticket = {}
	ticket["train_no"] = cq[2] # 车票号
	ticket["station_train_code"] = cq[3] # 车次
	ticket["start_station_telecode"] = cq[4] # 起始站代号
	ticket["end_station_telecode"] = cq[5] # 终点站代号
	ticket["from_station_telecode"] = cq[6] # 出发站代号
	ticket["to_station_telecode"] = cq[7] # 到达站代号
	ticket["start_time"] = cq[8] # 出发时间
	ticket["arrive_time"] = cq[9] # 到达时间
	ticket["lishi"] = cq[10] # 历时
	ticket["canWebBuy"] = cq[11] # 是否能购买：Y 可以
	ticket["yp_info"] = cq[12]
	ticket["start_train_date"] = cq[13] # 出发日期
	ticket["train_seat_feature"] = cq[14]
	ticket["location_code"] = cq[15]
	ticket["from_station_no"] = cq[16]
	ticket["to_station_no"] = cq[17]
	ticket["is_support_card"] = cq[18]
	ticket["controlled_train_flag"] = cq[19]
	ticket["gg_num"] = cq[20]
	ticket["gr_num"] = cq[21]
	ticket["qt_num"] = cq[22]
	ticket["rw_num"] = cq[23] # 软卧
	ticket["rz_num"] = cq[24] # 软座
	ticket["tz_num"] = cq[25]
	ticket["wz_num"] = cq[26] # 无座
	ticket["yb_num"] = cq[27]
	ticket["yw_num"] = cq[28] # 硬卧
	ticket["yz_num"] = cq[29]
	ticket["ze_num"] = cq[30] # 二等座
	ticket["zy_num"] = cq[31] # 一等座
	ticket["swz_num"] = cq[32] # 商务特等座
	ticket["srrb_num"] = cq[33]
	ticket["yp_ex"] = cq[34]
	ticket["seat_types"] = cq[35]
	ticket["exchange_train_flag"] = cq[36]
	ticket["from_station_name"] = stationCodeName[cq[6]]
	ticket["to_station_name"] = stationCodeName[cq[7]]
	tickets.append(ticket)
	else:
	print("Query left ticket wrong!")
	return tickets
	if __name__ == '__main__':
	trainDate = "2018-05-21"
	fromStation = "西安"
	toStation = "成都"
	ltq = LeftTicketQuery()
	staticonNameCode = ltq.queryStation()
	stationCodeName = dict((v, k) for k, v in staticonNameCode.items())
	leftTicketUrl = ltq.makeLeftTicketUrl(trainDate, fromStation, toStation, staticonNameCode)
	if leftTicketUrl != None:
	tickets = ltq.queryLeftTicket(leftTicketUrl, stationCodeName)
	for ticket in tickets:
	ticketLine = "车次：" + ticket["station_train_code"] + " 出发日期：" + ticket["start_train_date"] + " 出发站：" + \
	ticket["from_station_name"] + " 到达站：" + ticket["to_station_name"] + " 出发时间：" + ticket["start_time"] + " 到达时间：" + ticket[
	"arrive_time"] + " 历时：" + ticket["lishi"] + " 商务座特等座：" + ticket["swz_num"] + " 一等座：" + ticket["zy_num"] + " 二等座：" + \
	ticket["ze_num"] + " 高级软卧：" + ticket.get("yyrw_num", "") + " 软卧：" + ticket["rw_num"] + " 动卧：" + \
	ticket["srrb_num"] + " 硬卧：" + ticket["yw_num"] + " 软座：" + ticket["rz_num"] + " 硬座：" + ticket["yz_num"] + " 无座：" + ticket["wz_num"]
	print(ticketLine)
	else:
	print("Query left ticket wrong!")