JAXB编组 - 扩展现有类 [英] JAXB Marshalling - extending an existing class

问题描述

我需要使用JAXB通过XML创建一系列Java对象，这些对象都扩展了已创建的公共基类（不使用JAXB）。例如，假设我有以下我想要生成的JAXB类：

I am in need of creating a series of Java objects via XML using JAXB that all extend a common base class that is already created (not using JAXB). For example, let's say I have following JAXB classes that I am trying to generate:

Penguin.xml  -> Penguin.java
Robin.xml -> Robin.java
Cardinal.xml -> Cardinal.java

我已经有一个名为的现有基类Bird.java 我希望上面的三个类能够扩展。

I already have an existing base class called Bird.java that I wish the three classes above to extend.

最好的方法是什么？

感谢您的帮助！

推荐答案

这很简单：您需要创建一个包含以下内容的JAXB绑定文件：

That is very simple: you need to to create a JAXB binding file with following contents:

<jaxb:bindings version="1.0"
    xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
    xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
>

    <jaxb:globalBindings>
        <!-- All beans should extend this base class: -->
        <xjc:superClass name="org.mycompany.common.Bird" />
    </jaxb:globalBindings>

</jaxb:bindings>

您可以找到关于此选项（以及其他甜食）的更多信息在其他地方。

More information on this option (and other sweet things) you can find here.

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