java - 我有 @xmlrootelement ,但不断收到此异常:无法将类型编组为元素,因为它缺少 @XmlRootElement
问题描述
我正在尝试marshall/unmarshall
一个没有@xmlrootelement
. 任何人都可以帮忙吗?我正在使用的编组器是 Spring 的 Jaxb2Marshaller 类型的org.springframework.oxm.jaxb
大多数解决方案都是类型javax.xml.bind
Marshaller
和JAXBContext
. marshalling
在没有任何@xmlrootelement
提供的 Java 类中需要帮助,使用 Spring 的JAXB2MARSHALLER
.
我无法添加,@xmlrootelement
因为这是外部.jar
我已经尝试过所有这些解决方案,它们实际上提供了一种使用 javax 而不是 spring 进行编组/解组的方法
无法将类型编组为元素,因为它缺少自动生成的类的 @XmlRootElement 注释
无法将类型编组为 XML 元素,因为缺少 @XmlRootElement 注释
包括这个有一个非常简洁的解释但使用 Marshaller 而不是 JaxB2Marshaller
https://howtodoinjava.com/jaxb/marshal-without-xmlrootelement/
类需要经过 Marshalling 没有@xmlrootelement
PartnerRequest.java 类具有@xmlrootelement
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(
name = "",
propOrder = {"partnerCdId", "clientProductCode"}
)
@XmlRootElement(
name = "PartnerRequest"
)
public class PartnerRequest
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(
name = "Partner",
)
public class Partner{
}
我得到的异常如下:
[com.sun.istack.internal.SAXException2: unable to marshal type "com.svc.partner.v1.PartnerRequest" as an element because it is missing an @XmlRootElement annotation]
at org.springframework.oxm.jaxb.Jaxb2Marshaller.convertJaxbException(Jaxb2Marshaller.java:933)
at org.springframework.oxm.jaxb.Jaxb2Marshaller.marshal(Jaxb2Marshaller.java:709)
at org.springframework.ws.support.MarshallingUtils.marshal(MarshallingUtils.java:81)
at org.springframework.ws.client.core.WebServiceTemplate$2.doWithMessage(WebServiceTemplate.java:395)
at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:573)
at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:539)
at org.springframework.ws.client.core.WebServiceTemplate.marshalSendAndReceive(WebServiceTemplate.java:386)
at org.springframework.ws.client.core.WebServiceTemplate.marshalSendAndReceive(WebServiceTemplate.java:380)
at com.vmd.services.BaseService.marshallSendAndReceive(BaseService.java:53)
at com.vmd.services.PartnerServiceImpl.getPartner(PartnerServiceImpl.java:27)
at com.vmd.services.PartnerServiceImplTest.ShouldGetPartner(PartnerServiceImplTest.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: javax.xml.bind.MarshalException: null
at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:311)
at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:236)
at org.springframework.oxm.jaxb.Jaxb2Marshaller.marshal(Jaxb2Marshaller.java:705)
... 39 common frames omitted
Caused by: com.sun.istack.internal.SAXException2: unable to marshal type "com.svc.partner.v1.PartnerRequest" as an element because it is missing an @XmlRootElement annotation
at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:234)
at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:323)
at com.sun.xml.internal.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:479)
at com.sun.xml.internal.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:308)
... 41 common frames omitted
另外,请记住,我们需要使用 Jaxb2Mashaller 而不是 Marshaller 对其进行编组。这是一个外部 jar/依赖项不可编辑的代码。
提前致谢。
解决方案
我使用 JAxBElement 修复了类似的异常:
JAXBContext jaxbContext = JAXBContext.newInstance(Foo.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
请尝试一次,如果它不起作用,请分享一个示例 XSD 以供进一步调查。
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