xml - XSD 错误 : Character content is not allowed, 因为内容类型为空

Question

我从以下 XSD 收到验证错误:

<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:element name="People">
      <xsd:complexType>
         <xsd:sequence>
            <xsd:element name="Person" maxOccurs="unbounded">
                 <xsd:complexType>
                    <xsd:attribute name="name" type="xsd:string" use="required" />
                 </xsd:complexType>
             </xsd:element>
         </xsd:sequence>
      </xsd:complexType>
   </xsd:element>
</xsd:schema>

使用以下 XML 进行验证时:

<?xml version="1.0" ?>
<People>
    <Person name='john'>
        a nice person
    </Person>
    <Person name='sarah'>
        a very nice person
    </Person>
    <Person name='chris'>
        the nicest person in the world
   </Person>
</People>

返回以下错误:

lxml.etree.XMLSyntaxError: Element 'Person': Character content is not allowed, because the content type is empty.

我错过了什么？

Answer 1

意思是“Person”不能包含字符串。对于要使用该 xsd 验证的 xml，请使用:

<?xml version="1.0" ?>
<People>
    <Person name='john'>
    </Person>
    <Person name='sarah'>
    </Person>
    <Person name='chris'>
   </Person>
</People>

尝试使用 xsd 进行验证:

<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:element name="People">
      <xsd:complexType>
         <xsd:sequence>
         <xsd:element name="Person" type="Person" maxOccurs="unbounded"/>
         </xsd:sequence>
      </xsd:complexType>
   </xsd:element>

   <xsd:complexType name="Person">
     <xsd:simpleContent>
        <xsd:extension base="xsd:string">
           <xsd:attribute name="name" type="xsd:string" use="required" />
        </xsd:extension>
    </xsd:simpleContent>
   </xsd:complexType>
</xsd:schema>