JAXB:如何在 XSD 中指定 attr 类型时更改 XJC 生成的类名称? [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.我得到了这样的 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>
和 xjc 正在生成一个名为 ItemType.java
的类,但我希望名称为 Item.java
.也就是说,我希望生成的类就像 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>
不会在任何其他元素上重用 itemType,只是构建 XSD 的人喜欢这种方式.我想可能有一种方法可以使用自定义绑定来做到这一点,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.
有什么帮助吗?
谢谢,米格尔
推荐答案
JAXB 提供了两种方式来实现:
JAXB provides two ways to accomplish this:
1.内联架构注释
您可以使用 JAXB 模式注释来控制类名.
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
这种定制也可以通过外部绑定文件来完成:
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 命令行是:
xjc -d out -b binding.xml your-schema.xsd
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