弄乱了我之前的问题,这是一个新的尝试。
我正在尝试根据MSDN中的示例编写XSD架构。我修改了示例,以便XSD是xml文件的本地,并且不使用命名空间。但是,XML无法验证。
XSD文件(leda_sys_params.xsd):
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://tempuri.org/po.xsd"
xmlns="http://tempuri.org/po.xsd" elementFormDefault="qualified">
<xs:annotation>
<xs:documentation xml:lang="en">
Purchase order schema for Example.com.
Copyright 2000 Example.com. All rights reserved.
</xs:documentation>
</xs:annotation>
<xs:element name="purchaseOrder" type="PurchaseOrderType"/>
<xs:element name="comment" type="xs:string"/>
<xs:complexType name="PurchaseOrderType">
<xs:sequence>
<xs:element name="shipTo" type="USAddress"/>
<xs:element name="billTo" type="USAddress"/>
<xs:element ref="comment" minOccurs="0"/>
<xs:element name="items" type="Items"/>
</xs:sequence>
<xs:attribute name="orderDate" type="xs:date"/>
</xs:complexType>
<xs:complexType name="USAddress">
<xs:annotation>
<xs:documentation>
Purchase order schema for Example.Microsoft.com.
Copyright 2001 Example.Microsoft.com. All rights reserved.
</xs:documentation>
<xs:appinfo>
Application info.
</xs:appinfo>
</xs:annotation>
<xs:sequence>
<xs:element name="name" type="xs:string"/>
<xs:element name="street" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="state" type="xs:string"/>
<xs:element name="zip" type="xs:decimal"/>
</xs:sequence>
<xs:attribute name="country" type="xs:NMTOKEN"
fixed="US"/>
</xs:complexType>
<xs:complexType name="Items">
<xs:sequence>
<xs:element name="item" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="productName" type="xs:string"/>
<xs:element name="quantity">
<xs:simpleType>
<xs:restriction base="xs:positiveInteger">
<xs:maxExclusive value="100"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="USPrice" type="xs:decimal"/>
<xs:element ref="comment" minOccurs="0"/>
<xs:element name="shipDate" type="xs:date" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="partNum" type="SKU" use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<!-- Stock Keeping Unit, a code for identifying products -->
<xs:simpleType name="SKU">
<xs:restriction base="xs:string">
<xs:pattern value="\d{3}-[A-Z]{2}"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
XML文件(leda_sys_params.xml)
<?xml version="1.0" encoding="UTF-8"?>
<purchaseOrder xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="leda_sys_params.xsd" orderDate="1999-10-20">
<shipTo country="US">
<name>Alice Smith</name>
<street>123 Maple Street</street>
<city>Mill Valley</city>
<state>CA</state>
<zip>90952</zip>
</shipTo>
<billTo country="US">
<name>Robert Smith</name>
<street>8 Oak Avenue</street>
<city>Old Town</city>
<state>PA</state>
<zip>95819</zip>
</billTo>
<comment>Hurry, my lawn is going wild!</comment>
<items>
<item partNum="872-AA">
<productName>Lawnmower</productName>
<quantity>1</quantity>
<USPrice>148.95</USPrice>
<comment>Confirm this is electric</comment>
</item>
<item partNum="926-AA">
<productName>Baby Monitor</productName>
<quantity>1</quantity>
<USPrice>39.98</USPrice>
<shipDate>1999-05-21</shipDate>
</item>
</items>
</purchaseOrder>
XML无法验证:
3 145: Error schema document 'leda_sys_params.xsd' has different target namespace from the one specified in instance document ''
3 145: Error no declaration found for element 'purchaseOrder'
3 145: Error attribute 'orderDate' is not declared for element 'purchaseOrder'
所有错误都在第3行。
请你能帮我解决错误吗?
答案 0 :(得分:1)
由于您将元素声明为targetNamespace(附加了URL http://tempuri.org/po.xsd
),因此您需要在同一名称空间中使用包含元素的XML实例。
因此,您的示例XML应为:
<purchaseOrder xmlns="http://tempuri.org/po.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="leda_sys_params.xsd"
orderDate="1999-10-20">
替代解决方案:如果你没有&#39;根本不需要名称空间,然后按原样保留XML,并按如下方式修改模式:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="unqualified">