Python爬取携程机票代码实例

最新推荐文章于 2025-03-09 23:49:14 发布

小码良

最新推荐文章于 2025-03-09 23:49:14 发布

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分类专栏：爬虫 python

本文链接：https://blog.youkuaiyun.com/zll_1234/article/details/106146167

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本文介绍了使用Python模拟调用携程机票接口的过程，详细讲述了如何处理动态变化的token问题，以及在解决过程中遇到的挑战。代码示例展示了如何获取和使用城市编码，但遇到了即使多次调用接口也无法更新token的难题，期待读者提供解决方案。

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Python爬取携程机票代码实例

现在携程的页面是通过接口传递数据的，不能直接使用xpath进行解析，需要模拟调用接口的步骤
dcity是指出发地的城市编码
acity是指目的地的城市编码
其他参数是根据前端页面直接复制过来的，Mac 的Chrome浏览器如下图
在这里插入图片描述

def getResponse(fromCity,toCity,date):
    cityInfo = judgeCity(fromCity,toCity,date)
    dcity = cityInfo.get('dcity')
    dcityName = cityInfo.get('dcityName')
    acity = cityInfo.get('acity')
    acityName = cityInfo.get('acityName')
    token = getToken(fromCity,toCity,date)
    url = "https://flights.ctrip.com/itinerary/api/12808/products"
    headers = {
        "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36",
        "Referer": "https://flights.ctrip.com/itinerary/oneway/"+dcity+"-"+acity+"?date="+date,
        "Content-Type": "application/json"}
    request_payload = {
        "flightWay": "Oneway",
        "classType": "ALL",
        "hasChild": False,
        "hasBaby": False,
        "searchIndex": 1,
        "airportParams": [
            {
  "dcity": dcity, "acity": acity, "dcityname": dcityName, "acityname": acityName, "date": date}],
        "token": token
    }

    # post请求
    response = requests.post(url, data=json.dumps(request_payload), headers=headers).text

    return response

返回的结果可以在下图中找到具体字段，进行json字段的解析
在这里插入图片描述

def parseInfo(fromCity,toCity,date):

    airplaneInfo = {}

    response = getResponse(fromCity,toCity,date)
    print(response)
    # 很多航班信息在此分一下
    routeList = json.loads(response).get('data').get('routeList')
    # print(routeList)
    # 依次读取每条信息
    for route in routeList:
        # 判断是否有信息，有时候没有会报错
        if len(route.get('legs')) == 1:
            legs = route.get('legs')
            flight = legs[0].get('flight')
            # 提取想要的信息
            airlineName = flight.get('airlineName')  # 航空公司
            flightNumber = flight.get('flightNumber')  # 航班编号
            departureDate = flight.get('departureDate')  # 出发时间
            arrivalDate = flight.get('arrivalDate')  # 到达时间
            craftTypeName = flight.get('craftTypeName')  # 飞机类型
            craftTypeKindDisplayName = flight.get('craftTypeKindDisplayName')  # 飞机型号：大型；中型，小型

            departureCityName = flight.get('departureAirportInfo').get('cityName')  # 出发城市
            departureAirportName = flight.get('departureAirportInfo').get('airportName')  # 出发机场名称
            departureTerminalName = flight.get('departureAirportInfo').get('terminal').get('name')  # 出发机场航站楼
            arrivalCityName = flight.get('arrivalAirportInfo').get('cityName')  # 到达城市
            arrivalAirportName = flight.get('arrivalAirportInfo').get('airportName')  # 到达机场名称
            arrivalTerminalName = flight.get('arrivalAirportInfo').get('terminal').get('name')  # 到达机场航站楼

            punctualityRate = flight.get('punctualityRate')  # 到达准点率
            mealType = flight.get('mealType')  # 是否有餐食  None：代表无餐食，Snack：代表小食，Meal：代表含餐食

            cabins = legs[0].get('cabins')
            price = cabins[0].get('price').get('price')  # 标准价格
            rate = cabins[0].get('price').get('rate')  # 折扣率
            seatCount = cabins[0].get('seatCount')  # 剩余座位数

遇到的问题，是token的问题，在输入出发地和目的地时，发现token会改变，然后我尝试着去获取到token，找到了一个获取token的接口，如下图：
在这里插入图片描述

def getTokenResponse(fromCity,toCity,date):
    cityInfo = judgeCity(fromCity,toCity,date)
    dcity = cityInfo.get('dcity')
    dcityname = cityInfo.get('dcityname')
    acity = cityInfo.get('acity')
    acityname = cityInfo.get('acityname')
    referer = "https://flights.ctrip.com/itinerary/oneway/" + dcity + "-" + acity + "?date=" + date
    url = "https://flights.ctrip.com/itinerary/api/12808/records"
    headers = {
        "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36",
        "Referer": referer,
        "Content-Type": "application/json"}
    request_payload = {
        "vid": "1586849490183.3km93i"
    }
    print(referer)
    # post请求
    response = requests

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