Java - Web 客户端 - 发生异常时返回自定义实体响应

Question

我想在发生特定异常时返回自定义实体响应（例如，未经授权的异常）。 我知道如何捕获它，但只返回一个自定义异常；

public Mono<ResponseEntity<MagentoAdobeOrderResponse>> getOrder(String orderId, String token){
         return webClient.get()
                       .uri(orderUrl+"/"+orderId)
                       .header(HttpHeaders.CACHE_CONTROL, "no-cache")
                       .header(HttpHeaders.ACCEPT, "*/*")
                       .header(HttpHeaders.ACCEPT_ENCODING, "deflate, br")
                       .header(HttpHeaders.CONNECTION, "keep-alive")
                       .header(HttpHeaders.AUTHORIZATION, "Bearer "+token)
                       .retrieve()
               .toEntity(MagentoAdobeOrderResponse.class);
               .onErrorMap(Unauthorized.class, ex -> new AdobeMagentoUnauthorizedException(String.valueOf(HttpStatus.UNAUTHORIZED.value()),
                                    ButttonMilesConstants.BANK_PROBLEMS_ERROR_MESSAGE));
   }

我想要的是这样的：

public Mono<ResponseEntity<MagentoAdobeOrderResponse>> getOrder(String orderId, String token){
             return webClient.get()
                           .uri(orderUrl+"/"+orderId)
                           .header(HttpHeaders.CACHE_CONTROL, "no-cache")
                           .header(HttpHeaders.ACCEPT, "*/*")
                           .header(HttpHeaders.ACCEPT_ENCODING, "deflate, br")
                           .header(HttpHeaders.CONNECTION, "keep-alive")
                           .header(HttpHeaders.AUTHORIZATION, "Bearer "+token)
                           .retrieve()
                   .toEntity(MagentoAdobeOrderResponse.class);
                   .onErrorMap(Unauthorized.class, return new ResponseEntity<MagentoAdobeOrderResponse>());
   }

这是可能的？

问候

Answer 1

您可以在带有@ControllerAdvice注释的 class 中捕获您的异常，然后返回您的自定义实体响应。 @ControllerAdvice class 可以帮助您处理应用程序抛出的异常。

可能看起来像您想做的事情：

@ControllerAdvice
public class ControllerAdviceResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {

    @ExceptionHandler(value = {AdobeMagentoUnauthorizedException.class})
    protected ResponseEntity<Object> handleAdobeMagentoUnauthorizedException(
            RuntimeException exception, 
            ServletWebRequest request
    ) {
        MagentoAdobeOrderResponse response = new MagentoAdobeOrderResponse();
        return new ResponseEntity<>(response, HttpStatus.UNAUTHORIZED);
    }
}