有了这个 Jaxb Xml 定义,我尝试通过添加 @XmlPath(".")
来删除 Map Elements Wrapper但在解码期间会导致异常
@XmlRootElement
public abstract class ViewElement{
@XmlJavaTypeAdapter(value=EventAdapter.class)
public Map<Event, String> getEvents() {
}
private transient Class entityType;
public Class getEntityType() {
return entityType;
}
}
EventAdapter 是
public class EventAdapter extends XmlAdapter<EventAdapter.AdaptedMap, Map<Event, String>> {
public static class AdaptedMap {
@XmlVariableNode("key")
List<AdaptedEntry> entries = new ArrayList<AdaptedEntry>();
}
public static class AdaptedEntry {
@XmlTransient
public String key;
@XmlValue
public String value;
}
.....
}
我的输出是
<element>
<events>
<onCellEdit>do some thing<onCellEdit>
</events>
<entityType>com.agitech.erp.model.erp.ErpFolder</entityType>
<element>
我尝试删除 <events>
通过添加 @XmlPath(".")
标记
@XmlPath(".")
@XmlJavaTypeAdapter(value=EventAdapter.class)
public Map<Event, String> getEvents() {
}
效果不错
<element>
<onCellEdit>do some thing<onCellEdit>
<entityType>com.agitech.erp.model.erp.ErpFolder</entityType>
<element>
但是解码失败了
Caused by: Exception [EclipseLink-3002] (Eclipse Persistence Services - 2.6.0.v20140809-296a69f): org.eclipse.persistence.exceptions.ConversionException
Exception Description: The object [], of class [class java.lang.String], from mapping [org.eclipse.persistence.oxm.mappings.XMLDirectMapping[entityType-->view.entityType/text()]] with descriptor [XMLDescriptor(com.agitech.erp.view.BeanView --> [DatabaseTable(view), DatabaseTable(viewFrame), DatabaseTable(viewElement)])], could not be converted to [class java.lang.Class].
Internal Exception: java.lang.ClassNotFoundException:
at org.eclipse.persistence.exceptions.ConversionException.couldNotBeConvertedToClass(ConversionException.java:95)
at org.eclipse.persistence.internal.helper.ConversionManager.convertObjectToClass(ConversionManager.java:446)
调试 Jaxb 让我上线
org.eclipse.persistence.internal.oxm.XMLDirectMappingNodeValue
public void endElement(XPathFragment xPathFragment, UnmarshalRecord unmarshalRecord) {
...
line 205 unmarshalRecord.setAttributeValue(convertedValue, xmlDirectMapping);
}
在解码 entityType 值期间,UnmarshalRecordImpl.currentObj
包含 EventAdapter 而不是父元素
我修改org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl
public XPathNode getNonAttributeXPathNode(String namespaceURI, String localName, String qName, Attributes attributes) {
....
if(null == resultNode && null == nonPredicateNode) {
// ANY MAPPING
resultNode = xPathNode.getAnyNode();
// by default it return the EventAdapter, changing it to NULL fix my problem
}
....
}
不是安全的解决方案
最佳答案
我已经能够重现您遇到的问题,但尚未找出原因。您可以使用以下错误来跟踪此问题的进展:
关于jaxb - @XmlPath (".") 与@XmlAdapter 冲突,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27765087/