向JAXB xml添加注释

问题描述

我想在提供给JAXB的XML文件中添加注释.

I want add an annotation to the XML file provided to JAXB.

我们有一个要求，我将使用相同的属性名称和数据类型创建对象，但为其使用不同的JSON密钥.

We have a requirement where I will create the objects with same attribute names and datatypes but will have different JSON keys for them.

基于提供的注释，JSON中的键名将有所不同.这些注释是GSON注释，例如:@SerializedName(您想要的JSON的键名").

The key names in JSON will differ on the basis of annotation provided. These annotations are GSON annotations for example: @SerializedName("key name of JSON you would like").

我试图从我发布的问题中得到一些投入

I tried to get some inputs from the question I posted here

但无法真正获得任何解决方案.

But could not really get any solution.

有人有什么建议吗?

我将添加一些XML模式进行解释.

I will add some XML schema to explain.

<xsd:complexType name="RouteType">
 <xsd:attribute name="Pos" type="xsd:int" use="optional" default="1"/>
 <xsd:attribute name="Dir" type="DirType" use="required"/>
</xsd:complexType>

现在可以在上述架构中为属性Pos添加注释吗?

Now in above schema can I add an annotation to attribute Pos?

推荐答案

我假设您正在询问如何让JAXB编译器自动注释生成的类.有一个用于添加注释的JAXB插件: http://confluence.highsource.org/display/J2B /Annotate + Plugin

I assume that you're asking how to have the JAXB compiler automatically annotate the generated classes. There's a JAXB plugin for adding annotations: http://confluence.highsource.org/display/J2B/Annotate+Plugin

您可以像这样将其挂接到Maven构建的generate-sources阶段:

You can hook it into the generate-sources phase of a Maven build like so:

<build>
    <!-- snip -->
    <plugins>
        <plugin>
            <groupId>org.jvnet.jaxb2.maven2</groupId>
            <artifactId>maven-jaxb2-plugin</artifactId>
            <version>0.8.2</version>
            <executions>
                <execution>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>generate</goal>
                    </goals>
                    <configuration>
                        <schemaIncludes>
                            <include>path/to/your/schema.xsd</include>
                        </schemaIncludes>
                        <bindingIncludes>
                            <include>path/to/your/custom-bindings.xjb</include> <!-- if you choose to use a custom bindings file instead of inline annotations in the xsd -->
                        </bindingIncludes>
                        <forceRegenerate>true</forceRegenerate>
                        <extension>true</extension>
                        <episode>false</episode>
                        <args>
                            <arg>-Xannotate</arg>
                        </args>
                        <plugins>
                            <plugin>
                                <groupId>org.jvnet.jaxb2_commons</groupId>
                                <artifactId>jaxb2-basics-annotate</artifactId>
                                <version>0.6.4</version>
                            </plugin>
                        </plugins>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

如果上面的插件不能完全满足您的要求(我认为应该如此，它看起来很灵活)，那么进行自己的修改就不会太困难(我在添加副本构造函数之前已经做了此事)到生成的类).

If the above plugin doesn't do exactly what you want (which I think it should, it looks pretty flexible), it shouldn't be too difficult to roll your own modification (I have done this before for adding copy constructors to generated classes).

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