我正试图以银行账户为例定义一个简单的XML和XSD文件。
这是我定义XML文件的XSD:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema
xmlns:bank="http://www.w3.org/2001/XMLSchema"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified"
targetNamespace="http://www.auto-owners.com/accounts"
>
<xs:element name="accounts" >
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" ref="account"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="account" type="account">
<xs:complexType>
<xs:sequence>
<xs:element ref="uuid"/>
<xs:element ref="name"/>
<xs:element ref="balance"/>
<xs:element ref="status"/>
<xs:element ref="opened"/>
<xs:element ref="closed"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="uuid" type="xs:string"/>
<xs:element name="name" type="xs:string"/>
<xs:element name="balance" type="xs:decimal"/>
<xs:element name="status" type="xs:NCName"/>
<xs:element name="opened" type="xs:string"/>
<xs:element name="closed" type="xs:string"/>
</xs:schema>
这是我使用上面XSD文件的XML文件:
<?xml version="1.1" encoding="UTF-8"?>
<bank:accounts
xmlns="http://www.w3schools.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.auto-owners.com/Account account.xsd"
xmlns:bank="http://www.auto-owners.com/Account"
>
<bank:account>
<bank:uuid>19cab0a2-c44b-4f3e-b24e-5f21dd23c7e8
</bank:uuid>
<bank:name>Bob Dylan</bank:name>
<bank:balance>1233.12</bank:balance>
<bank:status>active</bank:status>
<bank:opened>01/02/2000</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>2e2142a2-1c36-4604-9bfd-f0681b89f775
</bank:uuid>
<bank:name>Bonnie Tyler</bank:name>
<bank:balance>34566.21</bank:balance>
<bank:status>active</bank:status>
<bank:opened>03/02/2000</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>216361b1-0bd5-455d-b6a0-400f92f61d68
</bank:uuid>
<bank:name>Dolly Parton</bank:name>
<bank:balance>9876.32</bank:balance>
<bank:status>active</bank:status>
<bank:opened>01/05/2011</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>140ee47a-d323-448d-a5e6-db2454a16934
</bank:uuid>
<bank:name>Gary Moore</bank:name>
<bank:balance>8764.12</bank:balance>
<bank:status>hold</bank:status>
<bank:opened>01/22/2010</bank:opened>
<bank:closed></bank:closed>
</bank:account>
</bank:accounts>
我一直在四处奔波,试图定义要使用的命名空间,每次我试图绑定到bank:namespace时,我都会得到一组循环的错误。我目前在:
解析组件"account"时出错。检测到"account"没有命名空间,但没有目标命名空间的组件无法从架构文档"中引用file:///.../account.xsd"。
有什么想法吗?
以下是您必须更改的内容:
- 正如Jim Garrison所指出的,在您的XSD中,
xmlns:bank="http://www.w3.org/2001/XMLSchema"
错误;它应该为CCD_ 2 - 在XSD中,当引用类型或元素时,在其前面加上目标命名空间的命名空间前缀
- 在XML中,
xsi:schemaLocation="http://www.auto-owners.com/Account account.xsd"
应该是xsi:schemaLocation="http://www.auto-owners.com/accounts account.xsd"
;必须注意匹配命名空间
更正后的XSD如下:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema
xmlns:bank="http://www.auto-owners.com/accounts"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified"
targetNamespace="http://www.auto-owners.com/accounts">
<xs:element name="accounts">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" ref="bank:account"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="account">
<xs:complexType>
<xs:sequence>
<xs:element ref="bank:uuid"/>
<xs:element ref="bank:name"/>
<xs:element ref="bank:balance"/>
<xs:element ref="bank:status"/>
<xs:element ref="bank:opened"/>
<xs:element ref="bank:closed"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="uuid" type="xs:string"/>
<xs:element name="name" type="xs:string"/>
<xs:element name="balance" type="xs:decimal"/>
<xs:element name="status" type="xs:NCName"/>
<xs:element name="opened" type="xs:string"/>
<xs:element name="closed" type="xs:string"/>
</xs:schema>
更正后的XML如下:
<?xml version="1.1" encoding="UTF-8"?>
<bank:accounts
xmlns="http://www.w3schools.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.auto-owners.com/accounts account.xsd"
xmlns:bank="http://www.auto-owners.com/accounts">
<bank:account>
<bank:uuid>19cab0a2-c44b-4f3e-b24e-5f21dd23c7e8
</bank:uuid>
<bank:name>Bob Dylan</bank:name>
<bank:balance>1233.12</bank:balance>
<bank:status>active</bank:status>
<bank:opened>01/02/2000</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>2e2142a2-1c36-4604-9bfd-f0681b89f775
</bank:uuid>
<bank:name>Bonnie Tyler</bank:name>
<bank:balance>34566.21</bank:balance>
<bank:status>active</bank:status>
<bank:opened>03/02/2000</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>216361b1-0bd5-455d-b6a0-400f92f61d68
</bank:uuid>
<bank:name>Dolly Parton</bank:name>
<bank:balance>9876.32</bank:balance>
<bank:status>active</bank:status>
<bank:opened>01/05/2011</bank:opened>
<bank:closed></bank:closed>
</bank:account>
<bank:account>
<bank:uuid>140ee47a-d323-448d-a5e6-db2454a16934
</bank:uuid>
<bank:name>Gary Moore</bank:name>
<bank:balance>8764.12</bank:balance>
<bank:status>hold</bank:status>
<bank:opened>01/22/2010</bank:opened>
<bank:closed></bank:closed>
</bank:account>
</bank:accounts>
以这种方式使用名称空间,XML现在将根据XSD进行验证