前缀JAXB生成的类 [英] Prefixing JAXB generated classes

问题描述

我有这个Maven任务使用JAXB从XSD文件生成Java类。

I have this Maven "task" to generate Java classes from an XSD file using JAXB.

        <!-- XML to Java classes -->
        <plugin>
            <groupId>com.sun.tools.xjc.maven2</groupId>
            <artifactId>maven-jaxb-plugin</artifactId>
            <executions>
                <execution>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>generate</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <generatePackage>nl.compay.service</generatePackage>
                <schemaDirectory>src/main/webapp/compay</schemaDirectory>
            </configuration>
        </plugin>

对于XSD类型User，它会生成一个名为User（duh）的类。但是，我还有一个名为User的JPA实体类（虽然在不同的包中）。
我可以更改上面的XML配置，让JAXB为生成的类添加类似XML的内容吗？

For an XSD type "User", it generates a class named "User" (duh). However, I also have a JPA entity class called "User" (though in a different package). Can I change the XML config above to let JAXB prefix the generated classes with something like "XML"?

推荐答案

这是一个常见的要求。您可以通过提供额外的JAXB绑定文件来自定义JAXB如何将Schema类型名称转换为Java类名称。

This is a common requirement. You can do that by providing an additional JAXB binding file to customize how JAXB translates the Schema type names into Java class names.

这些文件通常以扩展名.xjb结尾。您需要为您的架构创建一个，例如：

These files normally end in extension ".xjb". You need to create one for your schema, for example:

<jxb:bindings version="1.0" 
  xmlns:jxb="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" 
  jxb:extensionBindingPrefixes="xjc">

    <jxb:bindings schemaLocation="nl.company.service.xsd" node="/xs:schema">
        <jxb:schemaBindings>
            <jxb:nameXmlTransform>
                <jxb:typeName prefix="XML"/>
                <jxb:anonymousTypeName prefix="XML"/>
            </jxb:nameXmlTransform>
        </jxb:schemaBindings>
    </jxb:bindings>

</jxb:bindings>

完成后，将xjb文件放在构建目录中的某处并告诉Maven在翻译过程中使用它：

After you've done that, drop the xjb file somewhere in your build directory and tell Maven to make use of it during translation:

<includeBindings>
    <includeBinding>mybindings.xjb</includeBinding>
</includeBindings>

这里有一条道路提示：如果你在一个包含空格的路径中（例如Documents）和Settings\user\project）然后JAXB会因奇怪的错误而崩溃。

And here's a hint for the road: if you are in a path that contains spaces (e.g. "Documents and Settings\user\project") then JAXB will fall over with strange errors.

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