java - XSD:根元素错误

Question

当我尝试创建 XML 模式时遇到一个小问题。当我生成它时，我收到以下错误消息:必须指定根元素。

那么问题出在哪里呢？

<?xml version="1.0" encoding="UTF-8"?>

<complexType name="yazartipi">
    <sequence>
        <element name="isim" type="string"></element>
        <element name="soyad" type="string"></element>
    </sequence>
</complexType>

<complexType name="kitaptipi">
    <sequence>
        <element name="ad" type="string"></element>
        <element name="sene" type="int"></element>
        <element name="kategori" type="string"></element>
        <element name="yazar" type="tns:yazartipi"></element>
    </sequence>
    <attribute name="no" type="int" use="required"></attribute>
</complexType>

<complexType name="kitaplartipi">
    <sequence>
        <element name="kitap" type="tns:kitaptipi" minOccurs="1" maxOccurs="unbounded"></element>
    </sequence>
</complexType>

<element name="kitaplar" type="tns:kitaplartipi"></element>

Answer 1

清理 XSD 后:

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
        targetNamespace="http://www.example.org/Kitaplar"
        xmlns:tns="http://www.example.org/Kitaplar"
        elementFormDefault="unqualified"
        attributeFormDefault="qualified">

  <complexType name="yazartipi">
    <sequence>
        <element name="isim" type="string"></element>
        <element name="soyad" type="string"></element>
    </sequence>
  </complexType>

  <complexType name="kitaptipi">
    <sequence>
        <element name="ad" type="string"></element>
        <element name="sene" type="int"></element>
        <element name="kategori" type="string"></element>
      <element name="yazar" type="tns:yazartipi"></element>
    </sequence>
    <attribute name="no" type="int" use="required"></attribute>
  </complexType>

  <complexType name="kitaplartipi">
    <sequence>
        <element name="kitap" type="tns:kitaptipi" minOccurs="1" maxOccurs="unbounded"></element>
    </sequence>
  </complexType>

  <element name="kitaplar" type="tns:kitaplartipi"></element>
</schema>

您应该会发现一个像这样的 XML 文档:

<?xml version="1.0" encoding="utf-8"?>
<tns:kitaplar xmlns:tns="http://www.example.org/Kitaplar"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://www.example.org/Kitaplar try.xsd">
  <kitap tns:no="0">
    <ad/>
    <sene>1</sene>
    <kategori/>
    <yazar>
      <isim/>
      <soyad/>
    </yazar>
  </kitap>
</tns:kitaplar>

将成功验证。