<any>
元素用于扩展XSD功能。 它用于通过未在架构中定义的元素扩展在一个XSD中定义的complexType
元素。
看看下面一个例子 - 文件person.xsd 中定义了person complexType
元素。 address.xsd 中定义了address complexType
元素。
文件:person.xsd -
<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
targetNamespace = "http://www.yiibai.com"
xmlns = "http://www.yiibai.com"
elementFormDefault = "qualified">
<xs:element name = "person">
<xs:complexType >
<xs:sequence>
<xs:element name = "firstname" type = "xs:string"/>
<xs:element name = "lastname" type = "xs:string"/>
<xs:element name = "nickname" type = "xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
文件:address.xsd -
<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
targetNamespace = "http://www.yiibai.com"
xmlns = "http://www.yiibai.com"
elementFormDefault = "qualified">
<xs:element name = "address">
<xs:complexType>
<xs:sequence>
<xs:element name = "houseNumber" type = "xs:string"/>
<xs:element name = "street" type = "xs:string"/>
<xs:element name = "state" type = "xs:string"/>
<xs:element name = "zipcode" type = "xs:integer"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
如果要在XML中定义具有地址的人员,则以下XML文档格式声明将无效(person.xml) -
<?xml version = "1.0"?>
<class xmlns = "http://www.yiibai.com"
xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation = "http://www.yiibai.com person.xsd
http://www.yiibai.com address.xsd">
<person>
<firstname>Dinkar</firstname>
<lastname>Kad</lastname>
<nickname>Dinkar</lastname>
<address>
<houseNumber>101</firstname>
<street>Sector-1,Patiala</lastname>
<state>Punjab</lastname>
<zipcode>301202<zipcode>
</address>
</person>
</class>
使用
要验证上面的文档:person.xml,请将<xs:any>
添加到person.xsd 中的person
元素。如下文件:person.xsd 所示 -
<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
targetNamespace = "http://www.yiibai.com"
xmlns = "http://www.yiibai.com"
elementFormDefault = "qualified">
<xs:element name = "person">
<xs:complexType >
<xs:sequence>
<xs:element name = "firstname" type = "xs:string"/>
<xs:element name = "lastname" type = "xs:string"/>
<xs:element name = "nickname" type = "xs:string"/>
<xs:any minOccurs = "0"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
现在,person.xml 将使用文件:person.xsd 和address.xsd 的定义进行验证。