我收到以下错误消息，我有 Status 类，但未被识别。我不知道如何继续，也无法在网上找到答案。

错误

   org.springframework.http.converter.HttpMessageNotReadableException: Could 
   not read JSON: Unrecognized field "Status" (class 
   com.myproject.ticket.EventsResponse), not marked as ignorable (3 known 
   properties: "events", "status", "page"])
      ....
   Caused by: 
   com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: 
   Unrecognized field "Status" (class com.myproject.ticket.EventsResponse), 
   not marked as ignorable (3 known properties: "events", "status", "page"])

事件响应

@XmlRootElement(name = "EventsResponse")
@XmlAccessorType(XmlAccessType.FIELD)
public class EventsResponse {
    @XmlElement(name = "Status")
    private Status status;
    @XmlElement(name = "Paging")
    private Page page;
    @XmlElementWrapper(name="Events")
    @XmlElement(name = "Event")
    private List<Event> events;

    .....

状态

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Status {
    @XmlElement(name = "Version")
    private double version;
    @XmlElement(name = "TimeStampUtc")
    private Date timeStampUtc;
    @XmlElement(name = "Code")
    private int code;
    @XmlElement(name = "Message")
    private String message;
    @XmlElement(name = "Details")
    private String details;

响应

<EventsResponse xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    <Status>
        <Version>2.0</Version>
        <TimeStampUtc>2016-06-11T09:32:21</TimeStampUtc>
        <Code>0</Code>
        <Message>Success</Message>
        <Details />
    </Status>
    <Paging>
        <PageNumber>1</PageNumber>
        <PageSize>50</PageSize>
        <PageResultCount>15</PageResultCount>
        <TotalResultCount>15</TotalResultCount>
        <TotalPageCount>1</TotalPageCount>
    </Paging>
    <Events>
        <Event>

我在状态中添加了以下内容，但我仍然收到相同的错误。

@XmlElement(name = "Status")
@JacksonXmlProperty(localName = "Status")
private Status status;

最佳答案

我未能重建您的问题。

我创建了一个测试项目github here具有满足您需求的 Jackson 配置和 JAXB 注释。

我将依赖项添加到 jackson-dataformat-xml 和 woodstox-core-asl 作为您的 Stax 实现(在我的测试项目中，我使用的是 Jackson 2.6.6，Spring 4.2.6)

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
    <version>2.6.6</version>
</dependency>
<dependency>
    <groupId>org.codehaus.woodstox</groupId>
    <artifactId>woodstox-core-asl</artifactId>
    <version>4.4.1</version>
</dependency>

配置 Jackson2ObjectMapperBuilder 以使用 Jackson 和 JAXB 注释。这是一个转换为简单 Spring-MVC 外观的 Spring-boot 示例 here

@SpringBootApplication
public class EventAppConfiguration {

  public static void main(String[] args) {
       SpringApplication.run(EventAppConfiguration.class, args);
  }

  @Bean
  public Jackson2ObjectMapperBuilder jacksonBuilder() {
      Jackson2ObjectMapperBuilder b = new Jackson2ObjectMapperBuilder();
      b.indentOutput(true)
      //Enable Introspects for both Jackson and JAXB annotation
     .annotationIntrospector(introspector())
      //Use CamelCase naming
     .propertyNamingStrategy(PropertyNamingStrategy.PASCAL_CASE_TO_CAMEL_CASE)
     .dateFormat(new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss"));
      return b;
  }
  @Bean
  public AnnotationIntrospector introspector(){
     AnnotationIntrospector primary = new JacksonAnnotationIntrospector();
     AnnotationIntrospector secondary = new    JaxbAnnotationIntrospector(TypeFactory.defaultInstance());
     AnnotationIntrospector pair =  AnnotationIntrospector.pair(primary, secondary);
    return pair;
 }
}

注意使用

PropertyNamingStrategy.PASCAL_CASE_TO_CAMEL_CASE

这将使您无需为首字母大写指定替代命名，并且只需要使用 JAXB 注释进行变形和重命名，例如我的 EventsResponse 将如下所示:

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class EventsResponse {
       private Status status;
       @XmlElement(name = "Paging")
       private Page page;
       @XmlElementWrapper(name = "Events")
       @XmlElement(name = "Event")
       private List<Event> events;
    ...
}

关于java - 由 : com. 引起 fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "Status"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37721564/