我的 JAXB 解析器今天突然停止工作。它工作了几个星期。我收到以下消息。我已经好几个星期没有更改此代码了。想知道这个设置好不好。
编辑2：请有人帮助我！我想不通。
编辑 1：我运行下面相同代码的验收测试工作正常。我相信这是一个类加载问题。我在 JDK 中使用 JAXB 和 StAX。但是，当我部署到 jboss 5.1 时，出现以下错误。使用 1.6.0_26（本地）和 1.6.0_30（开发服务器）。仍然对解决方案感到困惑。
意外元素（uri：“”，本地：“lineEquipmentRecord”）。预期元素为 <{}switchType>、<{}leSwitchId>、<{}nodeAddress>、<{}leId>、<{}telephoneSuffix>、<{}leFormatCode>、<{}groupIdentifier>、<{}telephoneNpa> ,<{}telephoneLine>,<{}telephoneNxx>
这是我的解组类：
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.NoSuchElementException;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
import javax.xml.stream.FactoryConfigurationError;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
public class PartialUnmarshaller<T> {
XMLStreamReader reader;
Class<T> clazz;
Unmarshaller unmarshaller;
public PartialUnmarshaller(InputStream stream, Class<T> clazz) throws XMLStreamException, FactoryConfigurationError, JAXBException {
this.clazz = clazz;
this.unmarshaller = JAXBContext.newInstance(clazz).createUnmarshaller();
unmarshaller.setEventHandler(new ValidationEventHandler() {
@Override
public boolean handleEvent(ValidationEvent event) {
System.out.println(event.getMessage());
return true;
}
});
this.reader = XMLInputFactory.newInstance().createXMLStreamReader(stream);
/* ignore headers */
skipElements(XMLStreamConstants.START_DOCUMENT);
/* ignore root element */
reader.nextTag();
/* if there's no tag, ignore root element's end */
skipElements(XMLStreamConstants.END_ELEMENT);
}
public T next() throws XMLStreamException, JAXBException {
if (!hasNext())
throw new NoSuchElementException();
T value = unmarshaller.unmarshal(reader, clazz).getValue();
skipElements(XMLStreamConstants.CHARACTERS, XMLStreamConstants.END_ELEMENT);
return value;
}
public boolean hasNext() throws XMLStreamException {
return reader.hasNext();
}
public void close() throws XMLStreamException {
reader.close();
}
private void skipElements(Integer... elements) throws XMLStreamException {
int eventType = reader.getEventType();
List<Integer> types = new ArrayList<Integer>(Arrays.asList(elements));
while (types.contains(eventType))
eventType = reader.next();
}
}
此类使用如下：
List<MyClass> lenList = new ArrayList<MyClass>();
PartialUnmarshaller<MyClass> pu = new PartialUnmarshaller<MyClass>(
is, MyClass.class);
while (pu.hasNext()) {
lenList.add(pu.next());
}
被解组的 XML：
<?xml version="1.0" encoding="UTF-8"?>
<lineEquipment>
<lineEquipmentRecord>
<telephoneNpa>333</telephoneNpa>
<telephoneNxx>333</telephoneNxx>
<telephoneLine>4444</telephoneLine>
<telephoneSuffix>1</telephoneSuffix>
<nodeAddress>xxxx</nodeAddress>
<groupIdentifier>LEN</groupIdentifier>
</lineEquipmentRecord>
<lineEquipmentRecord>
<telephoneNpa>111</telephoneNpa>
<telephoneNxx>111</telephoneNxx>
<telephoneLine>2222</telephoneLine>
<telephoneSuffix>0</telephoneSuffix>
<nodeAddress>xxxx</nodeAddress>
<groupIdentifier>LEN</groupIdentifier>
</lineEquipmentRecord>
</lineEquipment>
最后，这是 MyClass：
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
/**
* This class is used as an envelope to hold Martens
* line equipment information.
* @author spgezf
*
*/
@XmlRootElement(name="lineEquipmentRecord")
public class MyClass {
private String telephoneNpa;
private String telephoneNxx;
private String telephoneLine;
private String telephoneSuffix;
private String nodeAddress;
private String groupIdentifier;
public MyClass(){
}
// Getters and Setters.
@XmlElement(name="telephoneNpa")
public String getTelephoneNpa() {
return telephoneNpa;
}
public void setTelephoneNpa(String telephoneNpa) {
this.telephoneNpa = telephoneNpa;
}
@XmlElement(name="telephoneNxx")
public String getTelephoneNxx() {
return telephoneNxx;
}
public void setTelephoneNxx(String telephoneNxx) {
this.telephoneNxx = telephoneNxx;
}
@XmlElement(name="telephoneLine")
public String getTelephoneLine() {
return telephoneLine;
}
public void setTelephoneLine(String telephoneLine) {
this.telephoneLine = telephoneLine;
}
@XmlElement(name="telephoneSuffix")
public String getTelephoneSuffix() {
return telephoneSuffix;
}
public void setTelephoneSuffix(String telephoneSuffix) {
this.telephoneSuffix = telephoneSuffix;
}
@XmlElement(name="nodeAddress")
public String getNodeAddress() {
return nodeAddress;
}
public void setNodeAddress(String nodeAddress) {
this.nodeAddress = nodeAddress;
}
@XmlElement(name="groupIdentifier")
public String getGroupIdentifier() {
return groupIdentifier;
}
public void setGroupIdentifier(String groupIdentifier) {
this.groupIdentifier = groupIdentifier;
}
}