XML XSD 命名空间问题 [英] XML XSD namespace issues

问题描述

我正在尝试使用银行帐户示例定义一个简单的 XML 和 XSD 文件.

I am trying to define a simple XML and XSD file using the example of bank accounts.

这是我的 XSD 定义我的 XML 文件:

Here is my XSD defining my XML file:

<?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>

这是我使用上述 XSD 文件的 XML 文件:

And here is my XML file using the XSD file above:

<?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>

我一直在尝试定义要使用的命名空间，每次尝试绑定到 bank: namespace 时，我都会遇到一系列错误.我目前在:

I have been running around trying to define the namespace to use and every time I try to bind to the bank: namespace I get a revolving set of errors. I am currently on:

解析组件帐户"时出错.检测到 'account' 没有命名空间，但是没有目标命名空间的组件是无法从架构文档file:///.../account.xsd"中引用.

Error resolving component 'account'. It was detected that 'account' has no namespace, but components with no target namespace are not referenceable from schema document 'file:///.../account.xsd'.

有什么想法吗?

推荐答案

以下是您必须更改的内容:

1. 在您的 XSD 中，如 Jim Garrison 所述，xmlns:bank="http://www.w3.org/2001/XMLSchema" 错误；这应该是 xmlns:bank="http://www.auto-owners.com/accounts".
2. 在你的 XSD 中，当你引用一个类型或元素时，在它前面加上目标命名空间的命名空间前缀.
3. 在您的 XML 中，xsi:schemaLocation="http://www.auto-owners.com/Accountaccount.xsd" 应该是xsi:schemaLocation="http://www.auto-owners.com/accountsaccount.xsd"; 必须注意大小写，以匹配字面上的命名空间.

1. In your XSD, as noted by Jim Garrison, xmlns:bank="http://www.w3.org/2001/XMLSchema" is wrong; it should be xmlns:bank="http://www.auto-owners.com/accounts".
2. In your XSD, when you reference a type or element, prefix it with the namespace prefix of the target namespace.
3. In your XML, xsi:schemaLocation="http://www.auto-owners.com/Account account.xsd" should be xsi:schemaLocation="http://www.auto-owners.com/accounts account.xsd"; case matters and care must be taken to match the namespace literally.

修正后的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>

以这种方式使用命名空间，XML 现在将根据 XSD 进行验证.

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