java - RestTemplate:没有找到合适的 HttpMessageConverter 异常

Question

我正在尝试在 Spring Boot 中解析以下 xml 响应:

响应结构:

<!DOCTYPE RESULT SYSTEM 'http://www.example.com/example/exampleV1.00.dtd'>
<RESULT REQID ='10961549902'>
    <MID SUBMITDATE='2017-08-14 17:17:29' ID='1' TAG = 'null' TID = '24180566483'></MID>
</RESULT>

来自服务的 API 调用:

RestTemplate restTemplate = new RestTemplate();    
restTemplate.getForObject("http://www.exampleUrl.com",ResponseXml.class);

ResponseXml.java

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "RESULT")
public class ResponseXml implements Serializable{

    @XmlAttribute(name="REQID")
    private long requestId;

    @XmlElement(name = "MID")
    private long MID;

    public ResponseXml() {
      super();
    }

    public ResponseXml(long requestId) {
      super();
      this.requestId = requestId;
    }

    //getter setter

    public class MID {

    @XmlAttribute(name="SUBMITDATE")
    private Date submitDate;
    @XmlAttribute(name="ID")
    private Long id;
    @XmlAttribute(name="TAG")
    private Long tag;
    @XmlAttribute(name="TID")
    private Long tid;

    //getter setter
  }
}

抛出异常:

Method threw 'org.springframework.web.client.RestClientException' exception.

Detailed message: Could not extract response: no suitable HttpMessageConverter found 
for response type [class com.hk.response.sms.NetcoreResponseXml] 
and content type [text/plain;charset=UTF-8]

请建议修复，关于如何在 JAVA spring boot 中解析 xml 响应？尽管添加了 @XmlRootElement 注释，为什么我还是收到 HttpMessageConverter 异常？

Answer 1

如果无法修复服务器，则配置在客户端应用程序中转换的消息以接受纯文本/文本:

// Create converter which supports text/plain mime type.
MappingJackson2HttpMessageConverter jsonConverter = new MappingJackson2HttpMessageConverter();
List<MediaType> mediaTypes = jsonConverter.getSupportedMediaTypes();
mediaTypes.add(MediaType.TEXT_PLAIN);
jsonConverter.setSupportedMediaTypes(mediaTypes);

// Alternatively get mapper as injected bean:
// @Inject
// private XmlMapper mapper;
XmlMapper mapper = new XmlMapper();
jsonConverter.setObjectMapper(mapper);

RestTemplate restTemplate = new RestTemplate();
// Register converter with RestTemplate
restTemplate.setMessageConverters(Arrays.asList(jsonConverter));