在解析包含xi的xml时遇到问题:包含jaxb

时间:2012-04-18 15:31:36

标签: java xml jaxb

我使用JAXB来解析xml' s。我有一个如下的模式,以及在此模式上定义的两个xml文件a.xml和b.xml。 a.xml与b.xml通过xi:include xml标记有依赖关系。请提交以下示例以获取更清晰的数据

 I have followng schema definition:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"  attributeFormDefault="unqualified">
    <xs:element name="Task">
    <xs:complexType>
        <xs:sequence>
            <xs:element ref="Details" minOccurs="1" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
</xs:element>
<xs:element name="Details">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="NAme" type="xs:string"/>
        </xs:sequence>
    </xs:complexType>
</xs:element>
</xs:schema>

以下是两个xml文件:

A.XML:

<?xml version="1.0" encoding="UTF-8"?>
<Task xmlns:xi="http://www.w3.org/2001/XInclude">
<Details>
    <xi:include href="b.xml"/>
</Details>
</Task>

B.XML:

 <?xml version="1.0" encoding="UTF-8"?>
 <Detail>
  <Name>Name1</Name>
 </Detail>
<Detail>
   <Name>Name2</Name>
 </Detail>

现在我使用JAXB SAXFactory解析它:

 JAXBContext jaxbcon = JAXBContext.newInstance("schema-definition-jaxb-files");
 unmar = jaxbcon.createUnmarshaller();

 SAXParserFactory spf = SAXParserFactory.newInstance();
 spf.setXIncludeAware(true);
 XMLReader xr = spf.newSAXParser().getXMLReader();
 SAXSource source = new SAXSource(xr, new InputSource(new    FileInputStream(xmlfilename)));
 Object obj = unmar.unmarshal(source);

解析成功,但 Details JAXB标记对象为null。无论如何,a.xml文件中的xi:include标记都没有展平。任何想法?

2 个答案:

答案 0 :(得分:3)

试试这个,它肯定有效:

public class Test {
    public String include;

    public static void main(String[] args) throws Exception {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        spf.setXIncludeAware(true);
        spf.setNamespaceAware(true);
        XMLReader xr = spf.newSAXParser().getXMLReader();
        SAXSource src = new SAXSource(xr, new InputSource("test.xml"));
        Test t = JAXB.unmarshal(src, Test.class);
        System.out.println(t.include);
    }
}

答案 1 :(得分:1)

你应该添加

    spf.setNamespaceAware(true);