我有一个XML架构如下:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<xs:element name="labels">
<xs:complexType>
<xs:sequence>
<xs:element name="label" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="language" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="value" type="xs:string" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
<labels>
可以包含多个<label>
元素,而<label>
元素可以包含多个<language>
元素。现在我需要的是<label>
元素具有一个名为'identifier'的唯一属性。
我希望有这样的XML结构:
<?xml version="1.0" encoding="UTF-8"?>
<labels
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xsi:noNamespaceSchemaLocation='labels.xsd'>
<label identifier="class_contact">
<language value="english">Contacts</language>
<language value="afrikaans">Kontakte</language>
</label>
</labels>
好的我把它改成了这个,现在它允许标识符属性,但它并不强制它是唯一的。
<?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<xs:element name="labels">
<xs:complexType>
<xs:sequence>
<xs:element name="label" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="language" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="value" type="xs:string" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="identifier" type="xs:string" />
</xs:complexType>
<xs:unique name="UniqueLabelLanguage">
<xs:selector xpath="language" />
<xs:field xpath="@value" />
</xs:unique>
<xs:unique name="UniqueLabelIdentifier">
<xs:selector xpath="label" />
<xs:field xpath="@identifier" />
</xs:unique>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
答案 0 :(得分:1)
<?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<xs:element name="labels">
<xs:complexType>
<xs:sequence>
<xs:element name="label" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="language" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="value" type="xs:string" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="identifier" type="xs:string" />
</xs:complexType>
<xs:unique name="UniqueLabelLanguage">
<xs:selector xpath="language" />
<xs:field xpath="@value" />
</xs:unique>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:unique name="UniqueLabelIdentifier">
<xs:selector xpath="label" />
<xs:field xpath="@identifier" />
</xs:unique>
</xs:element>
</xs:schema>