我正在使用XSDcxf-xjc-plugin插件从xsdtojava生成Java类。

问题:我无法控制xsd,并且一个元素具有xs:choice,这会导致JAXBElement。不幸的是,我的xml序列化程序jackson无法处理JAXBElement。因此,我正在尝试实现自动生成为Object而不是JAXBElement的功能。但是如何?

我无法控制的xsd:

<xs:element name="payment">
    <xs:complexType>
        <xs:choice maxOccurs="2">
            <xs:element name="creditcard">
                ...
            </xs:element>
            <xs:element name="debitcard">
                ...
            </xs:element>
            <xs:element name="iban">
                ...
            </xs:element>
        </xs:choice>
    </xs:complexType>
</xs:element>


xsdtojava生成:

@XmlRootElement
public class AutogeneratedReq {
    @XmlElementRefs({
         @XmlElementRef(name = "creditcard", type = JAXBElement.class, required = false),
         @XmlElementRef(name = "debitcard", type = JAXBElement.class, required = false),
         @XmlElementRef(name = "iban", type = JAXBElement.class, required = false)
    })
    private List<JAXBElement<?>> payment;
}


但是我的目标是:

    @XmlElements({
        @XmlElement(name="creditcard", type=Creditcad.class, required = false),
        @XmlElement(name="debitcard", type=Debitcard.class, required = false),
        @XmlElement(name="iban", type=Iban.class, required = false)
    })
    protected List<Object> payment;


或者也可以将每个选项生成为单个元素:

private List<Ceditcard> creditcard;
private List<Debitcard> debitcard;
private List<Iban> iban;


我尝试通过使用绑定文件来实现这一目标:

<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns="http://java.sun.com/xml/ns/jaxb"
          version="2.1">
    <globalBindings choiceContentProperty="true"/>
</bindings>


但这没有帮助。我还能尝试什么?

最佳答案

解决方案是使用simplify jaxb插件并使用<simplify:as-element-property/>生成choice元素。

专家

<dependency>
    <groupId>org.jvnet.jaxb2_commons</groupId>
    <artifactId>jaxb2-basics</artifactId>
</dependency>


具有cxf-xjc-plugin的xsdtojava maven配置必须使用:

<xsdOption>
   <bindingFile>${project.basedir}/src/main/resources/choice-binding.xml</bindingFile>
   <extensionArgs>
     <extensionArg>-Xsimplify</extensionArg>
   </extensionArgs>
</xsdOption>


choice-binding.xml:



axb:bindings
    xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
    xmlns:simplify="http://jaxb2-commons.dev.java.net/basic/simplify"
    jaxb:extensionBindingPrefixes="xjc simplify"
    jaxb:version="2.1">
    <jaxb:bindings schemaLocation="xsd/booking/bookingRequest.xsd">
                <jaxb:bindings multiple="true" node="//xs:element[@name='payment']//xs:complexType//xs:choice//xs:element">
                        <simplify:as-element-property/>
                </jaxb:bindings>
    </jaxb:binding>
</jaxb:bindings>

关于java - 如何使用xsdtojava防止xs:choice的JAXBElement自动生成?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47526881/

10-11 22:21
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