InvalidDefinitionException:无法构造“javax.xml.bind.JAXBElement”的实例（不存在类似默认构造的创建者）

我在读取XML文件时遇到问题。我使用多个XSD文件和一个maven插件生成了XML绑定。我在Github上推出了一个问题的最小可重现性示例：

生成xml绑定类的Maven插件：

            <plugin>
                <groupId>org.jvnet.jaxb2.maven2</groupId>
                <artifactId>maven-jaxb2-plugin</artifactId>
                <version>0.14.0</version>
                <executions>
                    <execution>
                        <id>cobieLiteRc4</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <forceRegenerate>true</forceRegenerate>
                            <generateDirectory>${project.build.directory}/generated-sources/cobielite
                            </generateDirectory>
                            <schemaDirectory>${project.basedir}/src/main/resources/cobielite/rc4</schemaDirectory>
                            <schemaIncludes>
                                <inclucde>cobielite.xsd</inclucde>
                            </schemaIncludes>
                            <bindingDirectory>
                                ${project.basedir}/src/main/resources/cobielite/rc4
                            </bindingDirectory>
                            <addCompileSourceRoot>true</addCompileSourceRoot>
                            <strict>false</strict>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

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更新

问题是JAXB生成了JAXBElement包装类，在使用XMLMapper类时，这似乎是不可解析的

同样的问题：

现在我想到了两个可能的解决办法：

告诉JAXB不要生成JAXBEElement包装类->这可以通过删除替换组来实现，替换组随后会修改模型，并导致生成的Java类的信息不可用、不完整

修改XMLMapper实例以处理JAXBElement包装器

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解决方法

作为一种解决方法，我更改了如何读取xml文件的实现：

        final XmlMapper xmlMapper = new XmlMapper();
        xmlMapper.registerModule(new JaxbAnnotationModule());
        xmlMapper.setDefaultUseWrapper(true);
        xmlMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        xmlMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
        xmlMapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true);
        xmlMapper.configure(DeserializationFeature.ACCEPT_EMPTY_ARRAY_AS_NULL_OBJECT, true);
        xmlMapper.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);

        try (InputStream is = new FileInputStream(new File("cobieLiteExample.xml"))) {
            final FacilityType facilityType = xmlMapper.readValue(is, new TypeReference<FacilityType>() {
            });
        }

JAXBContext jc = JAXBContext.newInstance("org.buildingsmartalliance.docs.nbims03.cobie.cobielite");
Unmarshaller u = jc.createUnmarshaller();

final JAXBElement<FacilityType> facilityTypeJAXBElement = (JAXBElement<FacilityType>) u.unmarshal(is);
final FacilityType facilityType = facilityTypeJAXBElement.getValue();

JAXBContext jc=JAXBContext.newInstance（“org.buildingsmartalliance.docs.nbims03.cobie.cobielite”）；
解组器u=jc.createUnmarshaller（）；
最终JAXBElement设备类型JAXBElement=（JAXBElement）u.unmarshal（is）；
final FacilityType FacilityType=facilityTypeJAXBElement.getValue（）；

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任何帮助都将不胜感激

JAXBContext jc = JAXBContext.newInstance("org.buildingsmartalliance.docs.nbims03.cobie.cobielite");
Unmarshaller u = jc.createUnmarshaller();

final JAXBElement<FacilityType> facilityTypeJAXBElement = (JAXBElement<FacilityType>) u.unmarshal(is);
final FacilityType facilityType = facilityTypeJAXBElement.getValue();