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3:30 질문이 있습니다.

22.09.01 23:25 작성 조회수 326

0

안녕하세요. 강의 잘 듣고 있습니다.

다름이 아니라 실행하실 때, dev 프로파일이 아닌, 기본 으로 하신걸까요..? 강의에서는 dev설정에서는 8081포트로 되어 있어서요.

그리고 로그가 잘 나오는데, 뒤에 이런 에러가 나오는데 어찌 해야 되는지 잘 모르겠습니다.

감사합니다.

Screen Shot 2022-09-01 at 23.23.26.png

feign.codec.DecodeException: Type definition error: [simple type, class com.app.springapiapp.api.health.dto.HealthCheckResponseDto]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of com.app.springapiapp.api.health.dto.HealthCheckResponseDto (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)

at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 2]

at feign.AsyncResponseHandler.decode(AsyncResponseHandler.java:119) ~[feign-core-11.8.jar:na]

at feign.AsyncResponseHandler.handleResponse(AsyncResponseHandler.java:87) ~[feign-core-11.8.jar:na]

at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:138) ~[feign-core-11.8.jar:na]

at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89) ~[feign-core-11.8.jar:na]

at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100) ~[feign-core-11.8.jar:na]

at com.sun.proxy.$Proxy103.healthCheck(Unknown Source) ~[na:na]

at com.app.springapiapp.api.feigntest.controller.HealthFeignTestController.healthCheckTest(HealthFeignTestController.java:20) ~[classes/:na]

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]

at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]

at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1070) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.22.jar:5.3.22]

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.22.jar:5.3.22]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.65.jar:4.0.FR]

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.22.jar:5.3.22]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.65.jar:4.0.FR]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.22.jar:5.3.22]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.22.jar:5.3.22]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.22.jar:5.3.22]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.65.jar:9.0.65]

at java.base/java.lang.Thread.run(Thread.java:829) ~[na:na]

Caused by: org.springframework.http.converter.HttpMessageConversionException: Type definition error: [simple type, class com.app.springapiapp.api.health.dto.HealthCheckResponseDto]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of com.app.springapiapp.api.health.dto.HealthCheckResponseDto (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)

at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 2]

at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:388) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:343) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:105) ~[spring-web-5.3.22.jar:5.3.22]

at org.springframework.cloud.openfeign.support.SpringDecoder.decode(SpringDecoder.java:75) ~[spring-cloud-openfeign-core-3.1.3.jar:3.1.3]

at org.springframework.cloud.openfeign.support.ResponseEntityDecoder.decode(ResponseEntityDecoder.java:61) ~[spring-cloud-openfeign-core-3.1.3.jar:3.1.3]

at feign.optionals.OptionalDecoder.decode(OptionalDecoder.java:36) ~[feign-core-11.8.jar:na]

at feign.AsyncResponseHandler.decode(AsyncResponseHandler.java:115) ~[feign-core-11.8.jar:na]

... 56 common frames omitted

Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of com.app.springapiapp.api.health.dto.HealthCheckResponseDto (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)

at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 2]

at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:67) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1904) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1349) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1415) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:351) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:184) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:323) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4674) ~[jackson-databind-2.13.3.jar:2.13.3]

at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3682) ~[jackson-databind-2.13.3.jar:2.13.3]

at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:380) ~[spring-web-5.3.22.jar:5.3.22]

... 62 common frames omitted

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생산성을 향상시키는 스프링부트 기반의 API 템플릿 프로젝트 구현

Spring Cloud OpenFeign (2)

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답변 2

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답변을 작성해보세요.

1

Bruce Han님의 프로필

Bruce Han

2022.09.02

retryer() 하고 HealthCheckController.checkHealth() 부분을 다시 보시겠어요?
저는 HealthCheckResponseDto에 @Getter와 @Builder만 넣어도 잘 됩니다

HealthFeignTestController도 다시 한 번 확인해보시면 좋을 듯합니다
조재연님의 프로필

조재연

질문자

2022.09.02

프로젝트를 처음부터 다시 만들고 해결했습니다. 패키지 경로에 문제가 있었네요.

1

구파고님의 프로필

구파고

지식공유자

2022.09.01

안녕하세요 오류메세지를 보면 http body에 HealthCheckResponseDto를 담아서 반환해줄 때 오류가 나고 있습니다.

Cannot construct instance of com.app.springapiapp.api.health.dto.HealthCheckResponseDto (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)

강의에서 HealthCheckResponseDto에 @Builder 어노테이션과 @Getter 어노테이션을 붙여 두었는데 해당 어노테이션도 클래스위에 선언을 해주셨을까요?

 

조재연님의 프로필

조재연

질문자

2022.09.01

Screen Shot 2022-09-01 at 23.49.17.png

네 어노테이션 둘다 설정해줬습니다.

조재연님의 프로필

조재연

질문자

2022.09.02

안녕하세요.

https://cnpubf.com/no-creators-like-default-construct-exist-cannot-deserialize-from-object-value-no-delegate-or-property-based-creator/

@Getter @Builder
@NoArgsConstructor  // 추가
@AllArgsConstructor // 추가
public class HealthCheckResponseDto {

    private String health;
    private List<String> activeProfiles;
}

롬복 어노테이션 2개 생성자를 사용해서 해결을 했는데요.

근데 ConnectTimeError 과정에서는 200 OK가 나오네요.

Screen Shot 2022-09-02 at 1.24.09.png

강사님 코드에는 @Builder와 @Getter만 있는데 문제가 없는데, 제꺼는 생성자 어노테이션이 필요한지는 잘 모르겠습니다.

조재연님의 프로필

조재연

질문자

2022.09.02

프로젝트를 처음부터 다시 만들고 해결했습니다. 패키지 경로에 문제가 있었네요.

구파고님의 프로필

구파고

지식공유자

2022.09.02

앗 그렇군요! 해결해서 다행입니다! 남은 강의도 화이팅입니다.

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