我正在尝试（一半用于教育目的，一半用于监控自己的票价）以便在联合航空公司的网站上搜索特定航班的价格数据。
我已经用selenium成功完成了它，但它是一个非常笨重的实现，在这个过程中我注意到在初始重定向之后有一个ajax调用，它有一个很好的JSON响应，我想要的一切。我尝试通过传递我在开发工具的网络选项卡中看到的相应的帖子参数直接命中端点，但它没有工作。然后我注意到有一个＆＃39; cart-id＆＃39;看起来很动态的字段，而其他字段看起来是静态的，所以我从预重定向表单提交页面中提取并将其插入到帖子中，但我得到的响应仍然是状态：失败＆＃34;我们＆＃ 39;很抱歉，但是nited.com无法完成您的请求＆＃34;。
我不确定此时我在帖子中遗漏了哪些数据。我也首先点击表单提交页面，以便使用持久会话对象设置cookie，认为这会有所帮助，但没有骰子。我错过了什么？您可以通过在浏览器中导航到下面的第一个网址，观看网络标签以及第一个名为＆＃39; rev＆＃39;的xhr来查看我正在寻找的实际响应。有我发布的表格数据，我试图模仿我追随的JSON。
with requests.session() as s:
formsubmitpage = s.get('https://www.united.com/ual/en/us/flight-search/book-a-flight/results/rev?f=sfo&t=tpe&d=2016-01-20&r=2016-01-26&sc=1,7&px=1&taxng=1&idx=1')
doc = html.fromstring(formsubmitpage.text)
cartid = doc.xpath('//a[@class="no-rtad"]/@data-cartid')[0]
print(cartid)
params = {"Revise":False,"UnaccompaniedMinorDisclamer":False,"ConfirmationID":None,"searchTypeMain":"roundTrip","Origin":"sfo","Destination":"tpe","DepartDate":"Jan 20, 2016","ReturnDate":"Jan 26, 2016","awardTravel":False,"MaxTrips":None,"numberOfTravelers":1,"numOfAdults":1,"numOfSeniors":0,"numOfChildren04":0,"numOfChildren03":0,"numOfChildren02":0,"numOfChildren01":0,"numOfInfants":0,"numOfLapInfants":0,"travelerCount":1,"revisedTravelerKeys":None,"revisedTravelers":None,"OriginalReservation":None,"RiskFreePolicy":None,"IsUnAccompaniedMinor":False,"MilitaryTravelType":None,"MilitaryOrGovernmentPersonnelStateCode":None,"tripLength":6,"IsParallelFareWheelCallEnabled":False,"flexMonth":None,"flexMonth2":None,"SortType":None,"cboMiles":None,"cboMiles2":None,"Trips":[{"DestinationAll":False,"returnARC":None,"connections":None,"nonStopOnly":True,"nonStop":True,"oneStop":False,"twoPlusStop":False,"ChangeType":0,"DepartDate":"Jan 20, 2016","ReturnDate":None,"PetIsTraveling":False,"PreferredTime":"","PreferredTimeReturn":None,"Destination":"TPE","Index":1,"Origin":"SFO","Selected":False,"FormatedDepartDate":"Wed, Jan 20, 2016","OriginCorrection":None,"DestinationCorrection":None,"OriginAll":False,"Flights":None},{"DestinationAll":False,"returnARC":None,"connections":None,"nonStopOnly":True,"nonStop":True,"oneStop":False,"twoPlusStop":False,"ChangeType":0,"DepartDate":"Jan 26, 2016","ReturnDate":None,"PetIsTraveling":False,"PreferredTime":"","PreferredTimeReturn":None,"Destination":"SFO","Index":2,"Origin":"TPE","Selected":False,"FormatedDepartDate":"Tue, Jan 26, 2016","OriginCorrection":None,"DestinationCorrection":None,"OriginAll":False,"Flights":None}],"nonStopOnly":1,"CalendarOnly":False,"InitialShop":True,"IsSearchInjection":False,"CartId":cartid,"CellIdSelected":None,"BBXSession":None,"SolutionSetId":None,"SimpleSearch":True,"RequeryForUpsell":False,"RequeryForPOSChange":False,"YBMAlternateService":False,"ShowClassOfServiceListPreference":False,"SelectableUpgradesOriginal":None,"RegionalPremierUpgradeBalance":0,"GlobalPremierUpgradeBalance":0,"RegionalPremierUpgrades":None,"GlobalPremierUpgrades":None,"FormattedAccountBalance":None,"GovType":None,"TripTypes":0,"flexible":False,"flexibleAward":False,"FlexibleDaysAfter":0,"FlexibleDaysBefore":0,"hiddenPreferredConn":None,"hiddenUnpreferredConn":None,"carrierPref":0,"chkFltOpt":0,"portOx":0,"travelwPet":0,"NumberOfPets":0,"cabinType":0,"cabinSelection":"ECONOMY","awardCabinType":0,"FareTypes":0,"FareWheelOnly":False,"EditSearch":False,"buyUpgrade":0,"offerCode":None,"TVAOfferCodeLastName":None,"ClassofService":None,"UpgradeType":None,"BillingAddressCountryCode":None,"BillingAddressCountryDescription":None,"IsPassPlusFlex":False,"IsPassPlusSecure":False,"IsOffer":False,"IsMeetingWorks":False,"IsValidPromotion":False,"CalendarDateChange":None,"CoolAwardSpecials":False,"LastResultId":None,"IncludeLmx":False,"NGRP":False,"calendarStops":0,"isReshopPath":False}
redirect_endpoint = s.post('https://www.united.com/ual/en/us/flight-search/book-a-flight/flightshopping/getflightresults/rev',data=json.dumps(params))
print(redirect_endpoint.text)#denied!
答案 0 :(得分：0)
在s.post电话中，您可能意味着
data=params
（发送表格数据）或：
json=params
（将JSON作为请求正文发送）。
params键用于查询字符串。