Spring RestTemplateの交換スローUnhandledHttpStatusException

Question

概要： 外部REST Webサービスから取得要求を呼び出すためにRestTemplateを使用します。次のように

私のコードは次のとおりです。

@Slf4j 
@Component("AccMemberDetailsApiControllerImpl") 
public class AccMemberDetailsApiControllerImpl implements MemberDetailsApiController { 

    private static final String CONTENT_TYPE_HEADER_NAME = "Content-Type"; 
    private static final String AUTHORIZATION_HEADER_NAME = "Authorization"; 
    private static final String USERID_PARAMETER_NAME = "userId"; 
    private static final String VEHICLEID_PARAMETER_NAME = "vehicleId"; 

    private static final ObjectMapper mapper = new ObjectMapper(); 

    /** 
    * This constant is used to check whether or not the response from ACC is an empty JSON string 
    */ 
    private static final String EMPTY_RESPONSE = "{}"; 

    @Value("${com.blss.memberServices.provider.posServiceURL}") 
    private String accPosServiceURL; 

    @Autowired 
    private RestTemplate restTemplate; 

    @Autowired 
    private AccTokenUtility accTokenUtility; 

    @Autowired 
    private ResourceMessage resourceMessage; 

    void setAccTokenUtility(AccTokenUtility accTokenUtility) { 
     this.accTokenUtility = accTokenUtility; 
    } 

    void setResourceMessage(ResourceMessage resourceMessage) { 
     this.resourceMessage = resourceMessage; 
    } 

    /** 
    * @see MemberDetailsApiController#getMemberDetails(String, String) 
    */ 
    @Override 
    public MemberDetailsModel getMemberDetails(String storeId, String membershipIdentifier) { 

     /** 
     * Getting CAD token 
     */ 
     String token = accTokenUtility.getCadToken(); 

     /** 
     * Preparing the request 
     */ 
     HttpHeaders headers = new HttpHeaders(); 

//  headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); 
     headers.set(CONTENT_TYPE_HEADER_NAME, MediaType.APPLICATION_JSON_VALUE); 
     headers.set(AUTHORIZATION_HEADER_NAME, token); 
     HttpEntity<String> entity = new HttpEntity<>(headers); 

     /** 
     * Creating the dispatch URL by means of userId and vehicleId 
     */ 
     String dispatchURL = accPosServiceURL + "DispatchedEvent/{userId}/{vehicleId}"; 

     /** 
     * Creating the URL variables and being valued by corresponding method parameters 
     */ 
     Map<String, String> parameters = new HashMap<>(); 
//  parameters.put(USERID_PARAMETER_NAME, storeId); 
     parameters.put(USERID_PARAMETER_NAME, "mr2"); 
//  parameters.put(VEHICLEID_PARAMETER_NAME, membershipIdentifier); 
     parameters.put(VEHICLEID_PARAMETER_NAME, "VEH1"); 

     /** 
     * Calling the rest webservice and returning response with body of type {@link AccMemberDetails} 
     */ 
     ResponseEntity<String> response; 
     MemberDetailsModel memberDetailsModel = null; 
     AccMemberDetails accMemberDetails; 
     try { 
      response = restTemplate.exchange(dispatchURL, HttpMethod.GET, entity, String.class, parameters); 
      if (response == null || StringUtils.isBlank(response.getBody()) || EMPTY_RESPONSE.equals(response.getBody())) { 
       throw new ResourceNotFoundException(resourceMessage.getMessage(MEMBER_ERROR_NOT_FOUND, storeId, membershipIdentifier)); 
      } else { 
       accMemberDetails = deserialize(response.getBody(), AccMemberDetails.class); 
       String accErrorMessage = accMemberDetails.getUserMessage(); 
       if (!StringUtils.isBlank(accErrorMessage)) { 
        throw new InternalServerException(resourceMessage.getMessage(MEMBER_ERROR_MESSAGE_FROM_API, "ACC", accErrorMessage)); 
       } 
       memberDetailsModel = convert(accMemberDetails); 
      } 
     } catch (RestClientException e) { 
      handleExceptions(e, storeId, membershipIdentifier); 
     } 
     return memberDetailsModel; 
    } 

    /** 
    * This method is responsible for deserializing string REST response into an object of type {@link AccMemberDetails} 
    */ 
    <T> T deserialize(final String response, final Class<T> responseClass) { 
     try { 
      return mapper.readValue(response, responseClass); 
     } catch (IOException e) { 
      throw new InternalServerException(resourceMessage.getMessage(MEMBER_ERROR_MAP_RESPONSE_OBJECT), e); 
     } 
    } 

    /** 
    * This method is responsible for converting an instance of type {@link AccMemberDetails} to an instance of type 
    * {@link MemberDetailsModel} 
    * 
    * @param accMemberDetails an instance of type {@link AccMemberDetails} 
    * @return an instance of type {@link MemberDetailsModel} 
    */ 
    MemberDetailsModel convert(AccMemberDetails accMemberDetails) { 
     MemberDetailsModel memberDetailsModel = new MemberDetailsModel(); 
     memberDetailsModel.setEventId(accMemberDetails.getEventId()); 
     memberDetailsModel.setMemberName(accMemberDetails.getMemberName()); 
     memberDetailsModel.setMembershipNumber(accMemberDetails.getMembershipNumber()); 
     memberDetailsModel.setMembershipLevel(accMemberDetails.getPricingLevel()); 
     return memberDetailsModel; 
    } 

    /** 
    * This method is responsible for handling Exceptions may be thrown by ACC REST webservice 
    * 
    * @param e     an instance of type {@link RestClientException} 
    * @param storeId    an instance of type {@link String} and used in building exception messages 
    * @param membershipIdentifier an instance of type {@link String} and used in building exception messages 
    */ 
    private void handleExceptions(RestClientException e, String storeId, String membershipIdentifier) { 
     if (e instanceof HttpStatusCodeException) { 
      HttpStatusCodeException httpStatusCodeException = (HttpStatusCodeException) e; 
      HttpStatus httpStatusCode = httpStatusCodeException.getStatusCode(); 
      if (404 == httpStatusCode.value()) { 
       throw new ResourceNotFoundException(resourceMessage.getMessage(MEMBER_ERROR_NOT_FOUND, storeId, membershipIdentifier), e); 
      } else if (500 == httpStatusCode.value()) { 
       throw new InternalServerException(resourceMessage.getMessage(MEMBER_SERVER_ERROR, "ACC"), e); 
      } else { 
       throw new InternalServerException(resourceMessage.getMessage(MEMBER_HTTP_STATUS_CODE_ERROR, "HttpStatusCodeException", "ACC"), e); 
      } 
     } else { 
      throw new InternalServerException(resourceMessage.getMessage(MEMBER_REST_CLIENT_ERROR, "RestClientException", "ACC"), e); 
     } 
    } 

問題

私はコードスニペットで"restTemplate.exchange(dispatchURL, HttpMethod.GET, entity, String.class, parameters);"を呼び出した後UnhandledHttpStatusExceptionを得ましたが。次のように例外スタックトレースは次のとおりです。

Caused by: org.springframework.web.client.UnknownHttpStatusCodeException: Unknown status code [443] null 
    at org.springframework.web.client.DefaultResponseErrorHandler.getHttpStatusCode(DefaultResponseErrorHandler.java:60) 
    at org.springframework.web.client.DefaultResponseErrorHandler.hasError(DefaultResponseErrorHandler.java:50) 
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:629) 
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:597) 
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:565) 
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:484) 
    at com.blss.retailServices.memberServices.controllers.impl.acc.AccMemberDetailsApiControllerImpl.getMemberDetails(AccMemberDetailsApiControllerImpl.java:110) 

誰かが私に解決策を提案することができれば今、私は感謝されます。

Answer 1

私はこのwebserviceを「-v」を使ってcurlで呼び出し、応答の詳細を取得しました。その結果、私は彼らの側から同じ例外（443）を得ました。したがって、意味のある例外メッセージを返すためには、より優れた例外ハンドラを用意する必要があるようです。