0

嘿,我想强制一个属性在我的 XML 文档中是唯一的。我刚刚开始使用 XML。我想让每个人都有一个唯一的ID。我看过 xs:unique 但不太清楚它在哪里,每次尝试时都不会解析。架构如下:

<?xml version='1.0' encoding='utf-8'?>
<xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
    <xs:element name='people' type='peopleType' /><!-- Root Element -->

    <xs:complexType name='peopleType'>
        <xs:sequence>
            <xs:element name='person' type='personType' maxOccurs='unbounded'/>
        </xs:sequence>
    </xs:complexType><!-- End peopleType-->

    <xs:complexType name='personType'>

        <xs:sequence>
            <xs:element name='name' type='nameType' maxOccurs='unbounded' />
            <xs:element name='email' minOccurs='1'>
                <xs:simpleType>
                    <xs:restriction base='xs:string'>
                        <xs:pattern value='([a-zA-Z0-9_-])*([.])?([a-zA-Z0-9_-])*([.])?([a-zA-Z0-9_-])*[@]([a-zA-Z0-9_-])*([.])?([a-zA-Z0-9_-])*([.])?([a-zA-Z0-9_-])*' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name='favColour' type='colourType' minOccurs='0' />

        </xs:sequence>

        <xs:attribute name='id' type='xs:integer' />

    </xs:complexType><!--End personType -->

    <xs:complexType name='nameType'>
        <xs:sequence>
            <xs:element name='given' minOccurs='1'>
                <xs:simpleType>
                    <xs:restriction base='xs:string'>
                        <xs:pattern value='[A-Z]([a-z])*' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name='family' minOccurs='1'>
                <xs:simpleType>
                    <xs:restriction base='xs:string'>
                        <xs:pattern value='[A-Z]([a-z])*' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
        </xs:sequence>
    </xs:complexType><!-- End nameType -->

    <xs:complexType name='colourType'>
        <xs:sequence>
            <xs:element name='red' minOccurs='1' >
                <xs:simpleType>
                    <xs:restriction base='xs:integer'>
                        <xs:minInclusive value='0' />
                        <xs:maxInclusive value='255' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name='green' minOccurs='1' >
                <xs:simpleType>
                    <xs:restriction base='xs:integer'>
                        <xs:minInclusive value='0' />
                        <xs:maxInclusive value='255' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
            <xs:element name='blue' minOccurs='1'>
                <xs:simpleType>
                    <xs:restriction base='xs:integer'>
                        <xs:minInclusive value='0' />
                        <xs:maxInclusive value='255' />
                    </xs:restriction>
                </xs:simpleType>
            </xs:element>
        </xs:sequence>
    </xs:complexType><!-- End colourType -->
</xs:schema>

[编辑] 在听取建议后,我做了以下更改。它可以解析,但不强制执行唯一属性。

<xs:complexType name='peopleType'>
        <xs:sequence>
            <xs:element name='person'  type='personType' maxOccurs='unbounded'>
                <xs:unique name="MyUserNameUniqueKey">
            <xs:selector xpath="person" />
            <xs:field xpath="@id" />
            </xs:unique>
            </xs:element>
        </xs:sequence>
    </xs:complexType><!-- End peopleType--> 
4

1 回答 1

2

在人员的元素声明中,添加一个带有选择器 xpath="person"、字段 xpath="@id" 的 xs:unique 声明。如果它不起作用,请告诉我们您尝试了什么。

于 2013-01-25T08:49:00.267 回答