如何在应用程序/xml中接受假装响应

Posted 2023-02-26

【中文标题】如何在应用程序/xml中接受假装响应

【英文标题】：How to accept feign response in application/xml

【发布时间】：2021-03-02 17:00:49

【问题描述】：

我正在调用以 XML 格式返回响应的第 3 方 API。 由于我还没有创建任何 POJO 来在我的消费者服务中保持响应，因此我使用 java.lang.Object 进行相同的处理。

我收到以下错误。

org.springframework.web.client.UnknownContentTypeException: Could not extract response: no suitable HttpMessageConverter found for response type [class java.lang.Object] and content type [application/xml]
    at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:126) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.cloud.openfeign.support.SpringDecoder.decode(SpringDecoder.java:59) ~[spring-cloud-openfeign-core-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.cloud.openfeign.support.ResponseEntityDecoder.decode(ResponseEntityDecoder.java:62) ~[spring-cloud-openfeign-core-2.2.5.RELEASE.jar:2.2.5.RELEASE]

我的假客户端代码

@FeignClient(value = "SERVICE", url = "https://goog.dummyservice/api1/v1", decode404 = true)
public interface UserFeign 

    @GetMapping(value = "/docs/profile/protocol", consumes = MediaType.APPLICATION_XML_VALUE)
    Object getUserData(@RequestHeader("Authorization") String token,
                         @PathVariable("profile") String profile,
                         @PathVariable("protocol") String protocol);

我想知道如何通过 feign 保持 XML 响应。

【问题讨论】：

你能解决这个问题吗？

【参考方案1】：

FeignClientConfiguration.java

@Configuration
@RequiredArgsConstructor
public class FeignClientConfiguration 

private final ObjectFactory<HttpMessageConverters> messageConverters;

@Bean
public Encoder feignFormEncoder() 
    return new FormEncoder(new SpringEncoder(messageConverters));


/*@Bean
public Decoder feignDecoder() 
    MappingJackson2XmlHttpMessageConverter c = new MappingJackson2XmlHttpMessageConverter();
    ObjectFactory<HttpMessageConverters> objectFactory = () ->new HttpMessageConverters(c);
    return new ResponseEntityDecoder(new SpringDecoder(objectFactory));
*/

ConsultaClient.java

    @FeignClient(url = "$api.serpro.url",
            name = "name",
            configuration = FeignClientConfiguration.class)
    public interface ConsultaClient 

    @PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, produces = MediaType.APPLICATION_XML_VALUE)
    @Headers("Content-Type: application/x-www-form-urlencoded")
    List<DocumentoDTO> getData(ParamsDTO params);