问题
i have a problem, I generated the classes using a schema xsd with xjc. when I run the marshal operation I get the following error:
[com.sun.istack.internal.SAXException2: unable to marshal type "java.lang.String" as an element because it is missing an @XmlRootElement annotation] at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.write(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.marshal(Unknown Source) at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(Unknown Source) at prova.StampGenericXML.staticStampGenericXML(StampGenericXML.java:42) at prova.TestLauncher.main(TestLauncher.java:199) Caused by: com.sun.istack.internal.SAXException2: unable to marshal type "java.lang.String" as an element because it is missing an @XmlRootElement annotation at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.reportError(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.LeafBeanInfoImpl.serializeRoot(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleReferenceNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayERProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.ArrayERProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsXsiType(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsSoleContent(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsRoot(Unknown Source)
the portion of the xsd code is:
<xsd:complexType name="formattedText">
<xsd:annotation>
<xsd:documentation>Formatted text according to parts of XHTML 1.1 </xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:any namespace="http://www.w3.org/1999/xhtml" processContents="lax"/>
</xsd:sequence>
</xsd:complexType>
the class FormattedText is:
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAnyElement;
import javax.xml.bind.annotation.XmlType;
import org.w3c.dom.Element;
/** * Formatted text according to parts of XHTML 1.1 * *
Java class for formattedText complex type. * *
The following schema fragment specifies the expected content contained within this class. * *
* <complexType name="formattedText">
* <complexContent>
* <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
* <sequence>
* <any processContents='lax' namespace='http://www.w3.org/1999/xhtml'/>
* </sequence>
* </restriction>
* </complexContent>
* </complexType>
*
*
*
*
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "formattedText", propOrder = {
"any"
})
public class FormattedText {
@XmlAnyElement(lax = true)
protected Object any;
/**
* Gets the value of the any property.
*
* @return
* possible object is
* {@link Element }
* {@link Object }
*
*/
public Object getAny() {
return any;
}
/**
* Sets the value of the any property.
*
* @param value
* allowed object is
* {@link Element }
* {@link Object }
*
*/
public void setAny(Object value) {
this.any = value;
}
}
this is the class for the marshal operation
public class StampGenericXML {
static public void staticStampGenericXML(Object objectJAXB, String context) throws ParserConfigurationException, SAXException, TransformerException{
try {
JAXBContext jaxbLocalContext = JAXBContext.newInstance ("org.plcopen.xml.tc6_0201");
Marshaller marshaller = jaxbLocalContext.createMarshaller();
marshaller.setProperty(marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(objectJAXB, System.out);
} catch (JAXBException e1) {
e1.printStackTrace();
}
}
}
When i create a FormattedText object:
FormattedText text = new FormattedText();
text.setAny("table");
and run the project i have thi error. Why? please help me. thanks
回答1:
Try:
text.setAny(new JAXBElement<String>(
new QName("table"), String.class, "tableContent");
来源：https://stackoverflow.com/questions/22205877/problems-with-jaxb-marshal-unable-to-marshal-type-java-lang-string