JAXB：如何在XSD中指定attr类型时更改XJC生成的类名？ [英] JAXB: How to change XJC-generated classes names when attr type is specified in XSD?

问题描述

我是JAXB的初学者，在使用xjc生成Java类时遇到了烦人的问题。我提供了这样的XSD：

I'm a beginner to JAXB and I'm having annoying issues when generating Java classes with xjc. I am provided with a XSD like this:

<xs:element name="item" type="itemType"/>  
...   
<xs:complexType name="itemType">
    <xs:attribute name="id" type="xs:string" use="required">
    ...     
</xs:complexType>

并且xjc正在生成一个名为的类ItemType.java ，但我希望名称是 Item.java 。也就是说，我希望生成的类好像XSD是这样的：

and xjc is generating a class called ItemType.java, but I want the name to be Item.java. That is, I want the generated classes as if the XSD was like this:

<xs:element name="item">
    <xs:complexType>
    <xs:attribute name="id" type="xs:string" use="required">
        ...
    </xs:complexType>
</xs:element>

任何其他元素都不会重复使用itemType，只是构建了XSD喜欢这种方式。
我想可能有一种方法可以使用自定义绑定，但我仍然没有找到方法。

There won't be any reuse of itemType on any other element, it's just the people that constructs the XSD likes it this way. I guess there may be a way to do it with custom bindings but I still haven't found how.

任何帮助？

谢谢，
Miguel

Thanks, Miguel

推荐答案

JAXB提供了两种方法来实现这一目标：

JAXB provides two ways to accomplish this:

1。内联架构Anntotations

您可以使用JAXB架构注释来控制类名。

You can use JAXB schema annotations to control the class names.

<xs:schema 
        xmlns:xs="http://www.w3.org/2001/XMLSchema"
        xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
        jaxb:version="2.1">

    <xs:complexType name="itemType">
        <xs:annotation>
            <xs:appinfo>
                <jaxb:class name="Item"/>
            </xs:appinfo>
        </xs:annotation>
        <xs:attribute name="id" type="xs:string" use="required"/>
    </xs:complexType>

</xs:schema>

2。外部绑定文件

此自定义也可以通过外部绑定文件完成：

This customization can also be done via and external binding file:

<jxb:bindings 
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
    version="2.1">

    <jxb:bindings schemaLocation="your-schema.xsd">
            <jxb:bindings node="//xs:complexType[@name='itemType']">
                <jxb:class name="Item"/>
            </jxb:bindings>
    </jxb:bindings>

</jxb:bindings>

xjc命令行将是：

xjc -d out -b binding.xml your-schema.xsd

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