问题
If I try to return FlightOfferSearch[] or FlightOrder objects from a handler method of my Spring Boot REST Controller, they don't seem to get serialized correctly like simpler POJOs I've worked with before where Jackson handled JSON serialization.
My code (actual API calls mostly identical to the SDK github example):
import com.amadeus.Amadeus;
import com.amadeus.Params;
import com.amadeus.exceptions.ResponseException;
import com.amadeus.resources.FlightOfferSearch;
import com.amadeus.resources.FlightOrder;
import com.amadeus.resources.Traveler;
import io.github.cdimascio.dotenv.Dotenv;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Objects;
@RequestMapping("api/v1")
@RestController
public class TestController {
private static Amadeus getFreshAccessToken() {
Dotenv dotenv = Dotenv.load();
return Amadeus
.builder(Objects.requireNonNull(dotenv.get("AMADEUS_KEY")), Objects.requireNonNull(dotenv.get("AMADEUS_SECRET")))
.build();
}
@GetMapping("/test")
FlightOrder testHandler() throws ResponseException {
Amadeus amadeus = getFreshAccessToken();
Traveler traveler = new Traveler();
traveler.setId("1");
traveler.setDateOfBirth("2000-04-14");
traveler.setName(traveler.new Name("JORGE", "GONZALES"));
Traveler.Phone[] phone = new Traveler.Phone[1];
phone[0] = traveler.new Phone();
phone[0].setCountryCallingCode("33");
phone[0].setNumber("675426222");
phone[0].setDeviceType("MOBILE");
Traveler.Contact contact = traveler.new Contact();
contact.setPhones(phone);
traveler.setContact(contact);
Traveler.Document[] document = new Traveler.Document[1];
document[0] = traveler.new Document();
document[0].setDocumentType("PASSPORT");
document[0].setNumber("480080076");
document[0].setExpiryDate("2022-10-11");
document[0].setIssuanceCountry("ES");
document[0].setNationality("ES");
document[0].setHolder(true);
traveler.setDocuments(document);
Traveler[] travelerArray = new Traveler[1];
travelerArray[0] = traveler;
System.out.println(travelerArray[0]);
FlightOfferSearch[] flightOffersSearches = amadeus.shopping.flightOffersSearch.get(
Params.with("originLocationCode", "SYD")
.and("destinationLocationCode", "BKK")
.and("departureDate", "2020-11-01")
.and("returnDate", "2020-11-08")
.and("adults", 1)
.and("max", 1));
FlightOrder order = amadeus.booking.flightOrders.post(flightOffersSearches, travelerArray);
return order;
}
}
Postman requests return:
"status": 500,
"error": "Internal Server Error",
"message": "JSON mapping problem: com.amadeus.resources.FlightOrder[\"response\"]->com.amadeus.Response[\"result\"]->com.google.gson.JsonObject[\"asBoolean\"]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: JsonObject (through reference chain: com.amadeus.resources.FlightOrder[\"response\"]->com.amadeus.Response[\"result\"]->com.google.gson.JsonObject[\"asBoolean\"])",
and the server logs
ERROR 45864 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageConversionException: JSON mapping problem: com.amadeus.resources.FlightOrder["response"]->com.amadeus.Response["result"]->com.google.gson.JsonObject["asBoolean"]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: JsonObject (through reference chain: com.amadeus.resources.FlightOrder["response"]->com.amadeus.Response["result"]->com.google.gson.JsonObject["asBoolean"])] with root cause
java.lang.UnsupportedOperationException: JsonObject
at com.google.gson.JsonElement.getAsBoolean(JsonElement.java:153) ~[gson-2.8.5.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_232]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_232]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_232]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_232]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:688) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1433) ~[jackson-databind-2.10.2.jar:2.10.2]
at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:921) ~[jackson-databind-2.10.2.jar:2.10.2]
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:294) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:104) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:287) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:181) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:124) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639) [tomcat-embed-core-9.0.31.jar:9.0.31]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.31.jar:9.0.31]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_232]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_232]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.31.jar:9.0.31]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_232]
Is there something else I need to do to convert them to JSON format?
回答1:
I reworked the Java SDK helpers to fix and add a couple of things:
- Fix a bug that was trying to book all the flights of the search.
- Added a new method allowing you to book using a single FlightOfferSearch (not an array)
- I added a method to book from a FlightPrice object. In theory, you shouldn't book from a FlightOfferSearch directly, you should call the Flight Offers Price API to confirm the price and availability before booking. You can find an example here. You can learn more about the flight booking flow in this tutorial.
For your information, all our APIs support the post with a JSON direclty (in String or in JsonObject) if any of our helpers fail you can use that method (take your object, deserialize it in String/JSON and use it directly).
I released a new version of the SDK version 4.1.0 please update to this version.
来源：https://stackoverflow.com/questions/60815078/how-can-i-return-flightoffersearch-and-flightorder-objects-as-json