Moxy-JAXB及其接口

关于如何使用Moxy和JaxB接口，已经有相当多的讨论

见例

布莱斯·道格汉的回答部分被接受，部分被拒绝。 我试着把答案改写成英文

见

测试用例。目前有一个

@Ignore

添加到测试用例中。如果取消对@Ignore的注释，则根据尝试的解组方法，会出现不同的错误：

1。使用xml元描述时，错误为：

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-25008] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.XMLMarshalException
Exception Description: A descriptor with default root element UserManager was not found in the project]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.handleXMLMarshalException(JAXBUnmarshaller.java:1110)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:638)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:214)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:209)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at 

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-44] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: Missing class indicator field from database row [org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl@38c6f217].
Descriptor: XMLDescriptor(com.bitplan.rest.users.User --> [])]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:225)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:215)

java.lang.ClassCastException: java.lang.String cannot be cast to com.bitplan.rest.users.User
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:219)

2。使用ObjectFactory方法，我得到：

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-25008] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.XMLMarshalException
Exception Description: A descriptor with default root element UserManager was not found in the project]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.handleXMLMarshalException(JAXBUnmarshaller.java:1110)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:638)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:214)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:209)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at 

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-44] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: Missing class indicator field from database row [org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl@38c6f217].
Descriptor: XMLDescriptor(com.bitplan.rest.users.User --> [])]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:225)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:215)

java.lang.ClassCastException: java.lang.String cannot be cast to com.bitplan.rest.users.User
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:219)

3。使用适用于我得到的客户/订单的JaxbFactory方法：

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-25008] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.XMLMarshalException
Exception Description: A descriptor with default root element UserManager was not found in the project]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.handleXMLMarshalException(JAXBUnmarshaller.java:1110)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:638)
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:214)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:209)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at 

javax.xml.bind.UnmarshalException
 - with linked exception:
[Exception [EclipseLink-44] (Eclipse Persistence Services - 2.6.3.v20160428-59c81c5): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: Missing class indicator field from database row [org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl@38c6f217].
Descriptor: XMLDescriptor(com.bitplan.rest.users.User --> [])]
    at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:225)
    at com.bitplan.jaxb.TestJaxbFactory.unmarshalFromContext(TestJaxbFactory.java:166)
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:215)

java.lang.ClassCastException: java.lang.String cannot be cast to com.bitplan.rest.users.User
    at com.bitplan.jaxb.TestJaxbFactory.testUserManager(TestJaxbFactory.java:219)

我该如何让它工作？

这三种方法中哪一种是正常的，而Moxy只是有问题，或者方法中有错误？

Testcode

@测试
@忽略
public void testUnMarshalViaMetaXML（）引发异常{
字符串xml=getUserManagerXml（）；
字符串metaxml=“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”
+“\n”+“\n”
+“\n”+”；
javax.xml.bind.JAXBContext JAXBContext=JaxbFactory.createJAXBContext(
“com.bitplan.rest.users”，metaxml）；
UserManager um4=unmarshalFromContext（jaxbContext，xml）；
assertNotNull（um4）；
}
@抑制警告（“原始类型”）
@试验
@忽略
public void testUnmarshalViaObjectFactory（）引发异常{
字符串xml=getUserManagerXml（）；
映射属性=新的HashMap（）；
类[]类={ObjectFactory.Class}；
javax.xml.bind.JAXBContext JAXBContext=JAXBContextFactory.createContext(
类别,物业),；
UserManager um3=unmarshalFromContext（jaxbContext，xml）；
assertNotNull（um3）；
}
@试验
@忽略
public void testUnmarshalViaFromXml（）引发异常{
字符串xml=getUserManagerXml（）；
UserManager um2=UserManagerImpl.fromXml（xml）；
assertEquals（2，um2.getUsers（）.size（））；
for（用户：um2.getUsers（））{
System.out.println（user.getId（））；
}
用户jd=um2.getById（“jd001”）；
jd.deCrypt（um2.getCrypt（））；
assertEquals（“badpassword”，jd.getPassword（））；
}