绑定嵌套类生成一个名为“Type”的新嵌套类,如何防止这种情况

时间:2017-12-12 19:23:15

标签: java xml jaxb xjc

我有一个XSD(我无法改变),它包含在complexType的sequence元素中定义的这些元素:

<xsd:element minOccurs="0" name="precision" nillable="true">
      <xsd:complexType>
                   ...
      </xsd:complexType>
 </xsd:element>
 <xsd:element minOccurs="0" name="Precision" nillable="true">
      <xsd:complexType>
                    ...
      </xsd:complexType>
 </xsd:element>          

当我在模式上运行xjc时,我在ObjectFactory和嵌套类中的名称冲突上获得了异常。

为了尝试解决这个问题,我添加了这个外部绑定,用于将字段映射到唯一名称和类到唯一名称:

<jaxb:bindings node="//*[local-name()='element' and @name='precision']" schemaLocation="schema.xsd">
    <jaxb:property name="precision1"/>
    <jaxb:class name="precision1"/>
</jaxb:bindings>
<jaxb:bindings node="//*[local-name()='element' and @name='Precision']" schemaLocation="schema.xsd">
    <jaxb:property name="Precision2"/>
    <jaxb:class name="Precision2"/>
</jaxb:bindings>

这样就可以生成JAXB类,但是这些类的生成方式如下:

 @XmlElementRef(name = "precision1", namespace = "namespace.CustomerInvoice2", type = JAXBElement.class, required = false)
protected JAXBElement<CustomerOrderDate.Precision1> precision1;

    protected final static QName NAME = new QName("namespace.CustomerInvoice3", "precision");

    public Precision11(CustomerOrderDate.Precision11 .Type value) {
        super(NAME, ((Class) CustomerOrderDate.Precision11 .Type.class), CustomerOrderDate.class, value);
    }

    public Precision11() {
        super(NAME, ((Class) CustomerOrderDate.Precision11 .Type.class), CustomerOrderDate.class, null);
    }


    /**
     * whole bunch of comments...
     */
    @XmlAccessorType(XmlAccessType.FIELD)
    @XmlType(name = "", propOrder = {
        "precision",
        "use"
    })
    public static class Type {
         //The actual fields

但是,如果我手动将字段名称更改为precision1和Precision2,则类生成为:

 public static class Precision1 {

    @XmlElementRef(name = "precision", namespace = "namespace.CustomerInvoice2", type = JAXBElement.class, required = false)
    protected JAXBElement<Integer> precision;
    @XmlElementRef(name = "use", namespace = "namespace.CustomerInvoice2", type = JAXBElement.class, required = false)
    protected JAXBElement<String> use;
    @XmlAttribute(name = "mark")
    protected String mark;
    @XmlAttribute(name = "mode")
    protected String mode;
    @XmlAttribute(name = "invalid")
    protected Boolean invalid;
    // blah, blah, blah...

我很好奇是否有可以使用的绑定将QName值保存在根类的字段声明中,并将Type信息保留在生成的类中。

1 个答案:

答案 0 :(得分:2)

基于this answer和教程JAXB - Java Architecture for XML Binding

你只需要:

<jaxb:bindings node="//xs:element[@name='precision']/xs:complexType" schemaLocation="schema.xsd">
    <jaxb:class name="Precision1"/>
</jaxb:bindings>
<jaxb:bindings node="//xs:element[@name='Precision']/xs:complexType" schemaLocation="schema.xsd">
    <jaxb:class name="Precision2"/>
</jaxb:bindings>