这是我的代码:
xsd文件:
<complexType name="Player">
<sequence>
<element name="Login" type="string"></element>
<element name="Passwd" type="string"></element>
</sequence>
</complexType>
<element name="Player" type="tns:Player"></element>
Build.xml:
<exec executable="${javahome}/bin/xjc" >
<arg value="-extension" />
<arg value="-b" />
<arg value="binding.xml" />
<arg value="-d" />
<arg value="${sources}" />
<arg value="-p" />
<arg value="metier" />
<arg value="Player.xsd" />
</exec>
</target>
binding.xml:
<jxb:bindings
xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
jxb:extensionBindingPrefixes="xjc" elementFormDefault="qualified" attributeFormDefault="unqualified"
version="2.1">
<jxb:globalBindings>
<xjc:simple />
<xjc:serializable/>
</jxb:globalBindings>
最后:
JAXBContext context = JAXBContext.newInstance(Player.class,ObjectFactory.class);
Unmarshaller decodeur = context.createUnmarshaller();
我添加"xjc:ssimple"是为了拥有@XMLRootElement,但引发了一个异常:javax.xml.bind.UnmarshalException:意外元素(uri:"http://www.example.org/Player"
它没有正确工作,因为我得到了:@XmlRootElement(name="Player",namespace="http://www.example.org/Player")
而不仅仅是:@XmlRootElement(name="Player")
如何删除此"命名空间"?
感谢
如果您的XML模式指示相应的XML文档应该是命名空间限定的,那么JAXB将生成具有预期命名空间限定的Java模型。下面我将描述一种方法,您可以利用StAX解析器欺骗JAXB,使其认为它正在解析命名空间限定文档:
播放器
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name="Player", namespace="http://www.example.org/Player")
public class Player {
private String login;
private String passwd;
@XmlElement(name="Login", namespace="http://www.example.org/Player")
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
@XmlElement(name="Passwd", namespace="http://www.example.org/Player")
public String getPasswd() {
return passwd;
}
public void setPasswd(String passwd) {
this.passwd = passwd;
}
}
NamespaceDelegate
我们将创建StreamReaderDelegate
的实现。此委托将报告所有元素事件的命名空间为"http://www.example.org/Player"
。注意:这个技巧假设所有元素都使用相同的命名空间URI进行限定。
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.util.StreamReaderDelegate;
public class NamespaceDelegate extends StreamReaderDelegate {
private static String NAMESPACE = "http://www.example.org/Player";
public NamespaceDelegate(XMLStreamReader xsr) {
super(xsr);
}
@Override
public String getNamespaceURI() {
return NAMESPACE;
}
}
演示
import java.io.FileInputStream;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.util.StreamReaderDelegate;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(Player.class);
FileInputStream xmlStream = new FileInputStream("input.xml");
XMLInputFactory xif = XMLInputFactory.newFactory();
XMLStreamReader xsr = xif.createXMLStreamReader(xmlStream);
StreamReaderDelegate srd = new NamespaceDelegate(xsr);
Unmarshaller unmarshaller = jc.createUnmarshaller();
Player player = (Player) unmarshaller.unmarshal(srd);
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(player, System.out);
}
}
input.xml
<?xml version="1.0" encoding="UTF-8"?>
<Player>
<Login>FOO</Login>
<Passwd>BAR</Passwd>
</Player>
我只是删除了"ObjectFactory.class",它就工作了。新代码:
JAXBContext context = JAXBContext.newInstance(Player.class);
Unmarshaller decodeur = context.createUnmarshaller();