如何自定义JAXB2生成的package-info.java

Question

我正在使用

<groupId>org.jvnet.jaxb2.maven2</groupId>
<artifactId>maven-jaxb2-plugin</artifactId>

从XSD文件生成Java类.

我已经添加

<args>-npa</args>

所以,插件不再生成package-info.java,但是使用此选项,生成的java类是不同的(命名空间被添加到每个元素).

所以,我无法使用package-info.java自定义命名空间.

如何在不修改手动生成的文件的情况下使用自定义命名空间

Answer 1

你可以使用jaxb2-common项目中的namespace-prefix插件(免责声明:我写的):

https://github.com/Siggen/jaxb2-namespace-prefix

这是一个xjc pluging,它允许在bindings.xml文件中定义namespace - > prefix映射:

<jxb:bindings schemaLocation="eCH-0007-3-0.xsd">
    <jxb:schemaBindings>
        <jxb:package name="ch.ech.ech0007.v3" />
    </jxb:schemaBindings>
    <jxb:bindings>
        <namespace:prefix name="eCH-0007" />
    </jxb:bindings>
</jxb:bindings>

这将导致生成以下package-info.java文件(请注意添加的XmlNs注释):

@javax.xml.bind.annotation.XmlSchema(namespace = "http://www.ech.ch/xmlns/eCH-0007/3", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED, xmlns = {
    @javax.xml.bind.annotation.XmlNs(namespaceURI = "http://www.ech.ch/xmlns/eCH-0007/3", prefix = "eCH-0007-3")
})
package ch.ech.ech0007.v3;

你的pom.xml看起来像:

<plugin>
    <groupId>org.jvnet.jaxb2.maven2</groupId>
    <artifactId>maven-jaxb2-plugin</artifactId>
    <version>0.8.0</version>
    <configuration>
        <schemaDirectory>src/main/resources</schemaDirectory>
        <catalog>src/main/resources/catalog.xml</catalog>
        <schemaIncludes>
            <include>*.xsd</include>
        </schemaIncludes>
        <bindingDirectory>src/main/resources</bindingDirectory>
        <bindingIncludes>
            <include>bindings.xml</include>
        </bindingIncludes>
        <args>
            <arg>-extension</arg>
            <arg>-Xnamespace-prefix</arg>
        </args>
    </configuration>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
        </execution>
    </executions>
    <dependencies>
        <dependency>
            <groupId>org.jvnet.jaxb2_commons</groupId>
            <artifactId>jaxb2-namespace-prefix</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</plugin>