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大家我有一个小问题我想要一个属性来充当member_id。

这是因为如果我将它作为另一个标签，我不能让它完全独一无二，我只能让它对所有 full_member 类型和 basic_member 类型都是唯一的。

所以我想我可以用一个属性和一个键来解决这个问题。

但我的问题是我不能拥有相邻的属性和选择，或者我只是不知道如何正确地做。

到目前为止，以下是我的架构。

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

    <xs:complexType name="memberinfo">
      <xs:sequence>
        <xs:element ref="member_id"/>
        <xs:element ref="first_name"/>
        <xs:element ref="last_name"/>
        <xs:element ref="address"/>
        <xs:element ref="contact_numbers"/>
        <xs:element ref="date_joined"/>
      </xs:sequence>
    </xs:complexType>

  <xs:element name="member_id" type="xs:integer"/>
  <xs:element name="first_name" type="xs:NCName"/>
  <xs:element name="last_name" type="xs:NCName"/>
  <xs:element name="address">
    <xs:complexType>
      <xs:sequence>
        <xs:choice>
        <xs:element ref="house_number"/>
        <xs:element ref="house_name"/>
        </xs:choice>
        <xs:element ref="street"/>
        <xs:element ref="town"/>
        <xs:element ref="city"/>
        <xs:element ref="county"/>
        <xs:element ref="postcode"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="house_number" type="xs:integer"/>
  <xs:element name="house_name" type="xs:string"/>
  <xs:element name="street" type="xs:string"/>
  <xs:element name="town" type="xs:NCName"/>
  <xs:element name="city" type="xs:NCName"/>
  <xs:element name="county" type="xs:NCName"/>
  <xs:element name="postcode" type="xs:NCName"/>
  <xs:element name="contact_numbers">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="3" ref="contact_number"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="contact_number" type="xs:integer"/>
  <xs:element name="date_joined" type="xs:date"/>

 <xs:complexType name="basic_member">
   <xs:complexContent>
     <xs:extension base="memberinfo">
       <xs:sequence>
         <xs:element name="activities">
           <xs:complexType>
             <xs:sequence>
               <xs:element name="activity_name" maxOccurs="3"/>
             </xs:sequence>
           </xs:complexType>
         </xs:element>
       </xs:sequence>
     </xs:extension>
   </xs:complexContent>
 </xs:complexType>

  <xs:complexType name="full_member">
    <xs:complexContent>
      <xs:extension base="memberinfo">
        <xs:sequence>
          <xs:element name="activities">
            <xs:complexType>
              <xs:sequence>
                <xs:element name="activity_name" maxOccurs="unbounded"/>
              </xs:sequence>
            </xs:complexType>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:element name="members" >
    <xs:complexType>
      <xs:sequence>
  <xs:element name="member" maxOccurs="unbounded">
    <xs:complexType>
      <xs:attribute name="member_id"/>
    </xs:complexType>
  </xs:element>
      </xs:sequence>
    </xs:complexType>
    <xs:key name="PK_member">
      <xs:selector xpath=".//member" />
      <xs:field xpath="member_id" />
    </xs:key>
  </xs:element>

</xs:schema>

输入示例

<member>
    <full_member>
        <member_id>1</member_id>
        <first_name>Simon</first_name>
        <last_name>Hughes</last_name>
        <address>
            <house_number>12</house_number>
            <street>Ashgrove Road</street>
            <town>Forest Town</town>
            <city>Mansfield</city>
            <county>Nottinghamshire</county>
            <postcode>NG385DX</postcode>
        </address>
        <contact_numbers>
            <contact_number>01623948594</contact_number>
            <contact_number>01623349596</contact_number>
            <contact_number>01623486599</contact_number>
        </contact_numbers>
        <date_joined>2012-05-21</date_joined>
        <activities>
            <activity_name>Treadmill</activity_name>
            <activity_name>Squash</activity_name>
            <activity_name>Table Tennis</activity_name>
            <activity_name>Weights</activity_name>
        </activities>
    </full_member>
    </member>

    <member>
    <full_member>
        <member_id>2</member_id>
        <first_name>Scott</first_name>
        <last_name>Calladine</last_name>
        <address>
            <house_name>Don House</house_name>
            <street>Simons Road</street>
            <town>Broadton</town>
            <city>Supper</city>
            <county>Nottinghamshire</county>
            <postcode>N496DX</postcode>
        </address>
        <contact_numbers>
            <contact_number>01623395865</contact_number>
            <contact_number>01623496959</contact_number>
            <contact_number>01623005604</contact_number>
        </contact_numbers>
        <date_joined>2007-08-16</date_joined>
        <activities>
            <activity_name>Static Cycle</activity_name>
            <activity_name>Badminton</activity_name>
            <activity_name>Table Tennis</activity_name>
        </activities>
    </full_member>
    </member>

<member>
    <full_member>
        <member_id>3</member_id>
        <first_name>Fransis</first_name>
        <last_name>Smith</last_name>
        <address>
            <house_name>Don House</house_name>
            <street>Lemington Close</street>
            <town>Bradford</town>
            <city>Bradfordcity>
            <county>West Yorkshire</county>
            <postcode>BD723DX</postcode>
        </address>
        <contact_numbers>
            <contact_number>01623497035</contact_number>
            <contact_number>01623389468</contact_number>
            <contact_number>01623439949</contact_number>
        </contact_numbers>
        <date_joined>2007-08-16</date_joined>
        <activities>
            <activity_name>Static Cycle</activity_name>
            <activity_name>Badminton</activity_name>
            <activity_name>Table Tennis</activity_name>
        </activities>
    </full_member>
    </member>

<member>
    <full_member>
        <member_id>4</member_id>
        <first_name>Hayley</first_name>
        <last_name>Cummingham</last_name>
        <address>
            <house_number>87</house_number>
            <street>Boreast Road</street>
            <town>Braranger</town>
            <city>Mansfield</city>
            <county>Nottinghamshire</county>
            <postcode>N454HX</postcode>
        </address>
        <contact_numbers>
            <contact_number>01623306031</contact_number>
            <contact_number>01623206940</contact_number>
            <contact_number>01623059680</contact_number>
        </contact_numbers>
        <date_joined>2012-05-21</date_joined>
        <activities>
            <activity_name>Treadmill</activity_name>
            <activity_name>Squash</activity_name>
            <activity_name>Table Tennis</activity_name>
            <activity_name>Weights</activity_name>
        </activities>
    </full_member>
    </member>

但使用我当前的模式，id 会变为 1 ,1 ,2 ,2

谢谢你

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1 回答 1

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我认为这会做到：

<xs:key name="PK_member"> 
  <xs:selector xpath=".//basic_member|.//full_member" /> 
  <xs:field xpath="member_id" /> 
</xs:key>

但是您的架构中似乎有问题 - 或者至少，它与您的示例 XML 不匹配。在架构members中包含一个member只有一个属性的元素，并且有两个独立且不相关full_member的basic_member元素，而在您的 XML 文件中basic_member并full_member显示在member.

于 2012-05-08T18:35:36.950 回答