如何从Amadeus API(Kotlin Android)获取JSON结果

Question

我正在尝试使用Amadeus Offers搜索API，代码如下：

when (val flightOffers = amadeus.shopping.flightOffersSearch.get(
originLocationCode = "MDZ",
destinationLocationCode = "MAD",
departureDate = LocalDate.parse("2020-11-11").toString(),
adults = 2,
max = 1
)) {
is ApiResult.Success -> {
if (flightOffers.succeeded) {
println("RESULT SUCCEEDED")
println(flightOffers.data)
}
else
{
println("RESULT DIDN'T SUCCEEDED")
}
}
is ApiResult.Error -> {
println("RESULT ERROR")
}
}

如果我编译logcat输出如下：

I/System.out: RESULT SUCCEEDED

这让我觉得flightOffers.data是空的。

然而，如果我尝试这个代码：

val flightOffers = amadeus.shopping.flightOffersSearch.get(
originLocationCode = "MDZ",
destinationLocationCode = "MAD",
departureDate = LocalDate.parse("2020-11-11").toString(),
adults = 2,
max = 1
)
println("AMADEUS: $flightOffers")

我得到以下输出：

I/System.out: AMADEUS: Success(meta=Meta(count=1, links={self=https://test.api.amadeus.com/v2/shopping/flight-offers?originLocationCode=MDZ&destinationLocationCode=MAD&departureDate=2020-11-11&adults=2&max=1}), data=[FlightOfferSearch(type=flight-offer, id=1, source=GDS, instantTicketingRequired=false, nonHomogeneous=false, oneWay=false, lastTicketingDate=2020-05-03, numberOfBookableSeats=7, itineraries=[Itinerary(duration=PT18H, segments=[SearchSegment(departure=AirportInfo(iataCode=MDZ, terminal=null, at=2020-11-11T07:10:00), arrival=AirportInfo(iataCode=AEP, terminal=null, at=2020-11-11T08:45:00), carrierCode=AR, number=1403, aircraft=Aircraft(code=738), duration=PT1H35M, id=1, numberOfStops=0, blacklistedInEU=false, co2Emissions=null), SearchSegment(departure=AirportInfo(iataCode=EZE, terminal=A, at=2020-11-11T13:25:00), arrival=AirportInfo(iataCode=MAD, terminal=1, at=2020-11-12T05:10:00), carrierCode=UX, number=42, aircraft=Aircraft(code=789), duration=PT11H45M, id=2, numberOfStops=0, blacklistedInEU=false, co2Emissions=null)])], price=SearchPrice(currency=EUR, total=1151.26, base=510.0, fees=[Fee(amount=0.0, type=SUPPLIER), Fee(amount=0.0, type=TICKETING)], grandTotal=1151.26), pricingOptions=PricingOptions(includedCheckedBagsOnly=true, fareType=[PUBLISHED], corporateCodes=null, refundableFare=false, noRestrictionFare=false, noPenaltyFare=false), validatingAirlineCodes=[UX], travelerPricings=[TravelerPricing(travelerId=1, fareOption=STANDARD, travelerType=ADULT, price=SearchPrice(currency=EUR, total=575.63, base=255.0, fees=null, grandTotal=0.0), fareDetailsBySegment=[FareDetailsBySegment(segmentId=1, cabin=ECONOMY, fareBasis=ZYYOPO, segmentClass=Q, includedCheckedBags=IncludedCheckedBags(weight=0, weightUnit=null)), FareDetailsBySegment(segmentId=2, cabin=ECONOMY, fareBasis=ZYYOPO, segmentClass=Z, includedCheckedBags=IncludedCheckedBags(weight=0, weightUnit=null))]), TravelerPricing(travelerId=2, fareOption=STANDARD, travelerType=ADULT, price=SearchPrice(currency=EUR, total=575.63, base=255.0, fees=null, grandTotal=0.0), fareDetailsBySegment=[FareDetailsBySegment(segmentId=1, cabin=ECONOMY, fareBasis=ZYYOPO, segmentClass=Q, includedCheckedBags=IncludedCheckedBags(weight=0, weightUnit=null)), FareDetailsBySegment(segmentId=2, cabin=ECONOMY, fareBasis=ZYYOPO, segmentClass=Z, includedCheckedBags=IncludedCheckedBags(weight=0, weightUnit=null))])])], dictionaries={locations={MAD={cityCode=MAD, countryCode=ES}, EZE={cityCode=BUE, countryCode=AR}, MDZ={cityCode=MDZ, countryCode=AR}, AEP={cityCode=BUE, countryCode=AR}}, aircraft={789=BOEING 787-9, 738=BOEING 737-800}, currencies={EUR=EURO}, carriers={AR=AEROLINEAS ARGENTINAS, UX=AIR EUROPA}})

这意味着API返回JSON，但我不能使用带有gson的flightOffers将此数据传递给DataClass，因为flightOffer是ApiResult>，我不知道如何使用它。根据他们图书馆的文档，应该像我第一次尝试时那样做。

我感谢所有能给我的帮助和建议。这是我的第一个Android应用程序。

Answer 1

很高兴看到社区中有了新的Android开发人员！

因此，首先，在Android中，您应该避免使用println，而应该使用Log.d/e/w/i，这种方法将在Android logcat中打印结果。

据我所见，你成功地设置了你的项目，并在哪里可以从sdk进行查询。

在android sdk中，每个get()都会给你一个正确的数据对象，而不仅仅是JSON。你不必分析答案。你的flightOffers.data中的东西实际上是一个List<FlightOfferSearch>，你可以立即使用！