Question

我有一个xsd，其中每个元素名称及其复杂类型名称相同。当我使用JAXB从xsd生成Java时，这会产生问题。此xsd由外部服务提供商提供。 XSD是错误的还是我在生成xsd时做错了什么。以下是xsd：

的示例

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="unqualified">
<xs:element name="Discounts" type="Discounts"/>
    <xs:complexType name="Discounts">
    <xs:complexContent>
        <xs:extension base="listWithSizeAttribute">
            <xs:sequence>
                <xs:element maxOccurs="unbounded" minOccurs="0" name="Discounttest" type="Discounttest"/>
            </xs:sequence>
        </xs:extension>
    </xs:complexContent>
</xs:complexType>

每当我使用JAXB生成Java对象时，我都会收到错误，其中包含重复元素折扣。整个xsd充满了这样的元素。因此，我觉得我身边出了点问题。

谢谢，阿克沙伊

Answer 1

XML架构

全局元素和复杂类型具有相同名称时没有问题。我已经刷新了你的XML模式以使其有效，以便我可以在其上运行模式编译。

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
    attributeFormDefault="unqualified" elementFormDefault="unqualified">
    <xs:element name="Discounts" type="Discounts" />
    <xs:complexType name="listWithSizeAttribute" />
    <xs:complexType name="Discounttest" />
    <xs:complexType name="Discounts">
        <xs:complexContent>
            <xs:extension base="listWithSizeAttribute">
                <xs:sequence>
                    <xs:element maxOccurs="unbounded" minOccurs="0"
                        name="Discounttest" type="Discounttest" />
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
</xs:schema>

<强>折扣

JAXB（JSR-222）实现为复杂类型生成Java类，因此您将为Discounts复杂类型生成一个类。

package forum11981855;

import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "Discounts", propOrder = {
    "discounttest"
})
public class Discounts
    extends ListWithSizeAttribute
{

    @XmlElement(name = "Discounttest")
    protected List<Discounttest> discounttest;

    public List<Discounttest> getDiscounttest() {
        if (discounttest == null) {
            discounttest = new ArrayList<Discounttest>();
        }
        return this.discounttest;
    }

}

<强>的ObjectFactory

将在与全局元素@XmlElementDecl对应的ObjectFactory类上生成Discounts注释。

package forum11981855;

import javax.xml.bind.JAXBElement;
import javax.xml.bind.annotation.XmlElementDecl;
import javax.xml.bind.annotation.XmlRegistry;
import javax.xml.namespace.QName;

@XmlRegistry
public class ObjectFactory {

    private final static QName _Discounts_QNAME = new QName("", "Discounts");

    public ObjectFactory() {
    }

    public Discounttest createDiscounttest() {
        return new Discounttest();
    }

    public Discounts createDiscounts() {
        return new Discounts();
    }

    public ListWithSizeAttribute createListWithSizeAttribute() {
        return new ListWithSizeAttribute();
    }

    @XmlElementDecl(namespace = "", name = "Discounts")
    public JAXBElement<Discounts> createDiscounts(Discounts value) {
        return new JAXBElement<Discounts>(_Discounts_QNAME, Discounts.class, null, value);
    }

}

了解更多信息

http://blog.bdoughan.com/2012/07/jaxb-and-root-elements.html

元素名称和复杂类型名称相同

1 个答案: