在我的模式文件中,我有一个元素Stat
,它扩展了Entity
。据我所知,I follow w3's example,但是当我去通过解析Java的DocumentBuilderFactory
和SchemaFactory
模式(和使用该模式的XML)与我得到这个异常:如何正确地在模式中声明扩展?
org.xml.sax.SAXParseException; systemId: file:/schema/characterschema.xsd;
src-resolve.4.2: Error resolving component 'cg:Entity'. It was detected that
'cg:Entity' is in namespace 'http://www.schemas.theliraeffect.com/chargen/entity',
but components from this namespace are not referenceable from schema document
'file:/home/andrew/QuasiWorkspace/CharacterGenerator/./schema/characterschema.xsd'.
If this is the incorrect namespace, perhaps the prefix of 'cg:Entity' needs
to be changed. If this is the correct namespace, then an appropriate 'import'
tag should be added to '/schema/characterschema.xsd'.
所以,看来我在我的模式中看不到我的命名空间。我是否需要将自己的模式导入到自身中,还是完全误读了这个异常?难道我不正确地宣布我的模式?
这是我参考架构:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:cg="http://www.schemas.theliraeffect.com/chargen/entity"
elementFormDefault="qualified">
<xs:element name="Entity">
<xs:complexType>
<xs:attribute name="id" type="xs:string" use="required"/>
<xs:attribute name="name" type="xs:string"/>
<xs:attribute name="description" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="Stat">
<xs:complexType>
<xs:complexContent>
<xs:extension base="cg:Entity">
<xs:sequence>
<xs:element name="table" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:element>
</xs:schema>