Jackson和JaxB Annotation Module的JSON格式不正确

Question

Jackson和JaxB Annotation非常奇怪的问题。请参阅JSON格式不正确的问题。

public interface All {
}

@XmlJavaTypeAdapter(value=AnyAdapter.class, type=Any.class)
public interface Any {
    public boolean isKnown();
}

@XmlJavaTypeAdapter(value=AnyAdapter.class, type=Any.class)
public abstract class Known implements Any {
    @Override
    @XmlTransient
    public boolean isKnown() {
        return false;
    }
    public Known(String type) {
        super();
        this.type = type;
    }
    String type;

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }
    public abstract void validate();
}

@XmlRootElement
public class Resource extends Known implements All{
    public Resource(Integer resourceId, String resourceName) {
        super("Resource");
        this.resourceId = resourceId;
        this.resourceName = resourceName;
    }
    public Integer getResourceId() {
        return resourceId;
    }
    public void setResourceId(Integer resourceId) {
        this.resourceId = resourceId;
    }
    public String getResourceName() {
        return resourceName;
    }
    public void setResourceName(String resourceName) {
        this.resourceName = resourceName;
    }
    Integer resourceId;
    String  resourceName;
    @Override
    public void validate() {
    }
}

@XmlRootElement
public class ResourceList extends Known{
    public ResourceList(String name) {
        super("ResourceList");
        this.name = name;
    }
    List<All> resourceList;
    String name;
        @XmlElements({ 
            @XmlElement(name="resource", type=Resource.class), 
        })
    public List<All> getResourceList() {
        return resourceList;
    }
    public void setResourceList(List<All> resourceList) {
        this.resourceList = resourceList;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public void validate() {
    }

}

public class JacksonJaxbAdapterImpl {

    public ObjectMapper initializeJackson() {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        mapper.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
        mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        mapper.setSerializationInclusion(Include.NON_NULL);

        // Need to use JaxB Annotation.
        JaxbAnnotationModule module = new JaxbAnnotationModule();
        mapper.registerModule(module);

        SimpleModule mySimpleModule = new SimpleModule();
        mySimpleModule.addSerializer(Long.class, new ToStringSerializer());
        mySimpleModule.addSerializer(Double.class, new ToStringSerializer());
        mapper.registerModule(mySimpleModule);

        return mapper;
    }

    public void writeObject(Object target, Writer writer, boolean isPretty) throws Exception {
        ObjectMapper mapper = initializeJackson();
        try {
            if(isPretty) {
                mapper.writerWithDefaultPrettyPrinter().writeValue(writer,target);
            } else {
                mapper.writeValue(writer,target);
            }
        } catch (JsonGenerationException e) {
            throw new RuntimeException(e);
         } catch (JsonMappingException e) {
            throw new RuntimeException(e);
         } catch (IOException e) {
            throw new RuntimeException(e);
         }
    }

}

public class JacksonJaxbAdapterTest {
    public static void main(String[] args) throws Exception {
        JacksonJaxbAdapterTest test = new JacksonJaxbAdapterTest();

        ResourceList report = test.makeObject();
        StringWriter jacksonWriter = new StringWriter();

        JacksonJaxbAdapterImpl jacksonMainClass = new JacksonJaxbAdapterImpl();
        jacksonMainClass.initializeJackson();
        jacksonMainClass.writeObject(report, jacksonWriter, true);

        System.out.println(jacksonWriter);
    }

    ResourceList makeObject() {
        Resource primary = new Resource(12,"primary");
        Resource secondary = new Resource(13, "secondary");

        List<All> listofRes = new ArrayList<All>();
        listofRes.add(primary);
        listofRes.add(secondary);

        ResourceList report = new ResourceList("Daily");
        report.setResourceList(listofRes);

        return report;
    }
}

JSON输出带有额外的不需要的“资源”标记。

{
  "name" : "Daily",
  "resourceList" : [ {
    "resource" : {
      "resourceId" : 12,
      "resourceName" : "primary",
      "type" : "Resource"
    }
  }, {
    "resource" : {
      "resourceId" : 13,
      "resourceName" : "secondary",
      "type" : "Resource"
    }
  } ],
  "type" : "ResourceList"
}

删除@XmlElements标记（在ResourceList.java中）并仅使用@XmlElement标记 - JSON在没有“resource”标记的情况下变得完美。 @XmlElement（name =“resource”，type = Resource.class）

{
  "name" : "Daily",
  "resource" : [ {
    "resourceId" : 12,
    "resourceName" : "primary",
    "type" : "Resource"
  }, {
    "resourceId" : 13,
    "resourceName" : "secondary",
    "type" : "Resource"
  } ],
  "type" : "ResourceList"
}

有任何建议吗？