JAXB - IllegalAnnotationExceptions

Question

我有这样的XSD：

<xs:element name="Measure">
 <xs:complexType>
  <xs:sequence>
    <xs:element minOccurs="1" ref="Measure_Id"/>
    <xs:choice minOccurs="1" maxOccurs ="4">
        <xs:element ref="Measure_Value"/>
        <xs:element ref="Measure_Value_Max"/>
        <xs:element ref="Measure_Value_Min"/>
        <xs:element ref="Measure_Value_Average"/> 
    </xs:choice>
    <xs:element minOccurs="0" ref="Files"/>
  </xs:sequence>
 </xs:complexType>
</xs:element>

特别是，对于<xs:choice>，我希望指定元素Measure必须至少有一种类型的Measure_Value。不幸的是，这种代码会产生异常：

com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1计数IllegalAnnotationExceptions --元素{}Measure_Value_Max没有带有@XmlElementDecl的ObjectFactory。

我要怎么做才能解决这个问题？

我使用Netbeans 7.4和jdk1.7。

此外，在我的模式的另一部分中，这种类型的限制是正确的！为什么？

<xs:element name="UD_Info">
 <xs:complexType>
  <xs:sequence>
    <xs:element minOccurs="1" ref="UD_Identificator"/> 
    <xs:choice minOccurs="1" maxOccurs ="3">
        <xs:element ref="UD_Measures"/>
        <xs:element ref="UD_Alarms"/>
        <xs:element ref="UD_Diagnostics"/>
    </xs:choice>        
  </xs:sequence>
 </xs:complexType>
</xs:element>

堆栈跟踪：

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/francesco/.m2/repository/org/slf4j/slf4j-log4j12/1.7.6/slf4j-log4j12-1.7.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: Found binding in [jar:file:/home/francesco/.m2/repository/ch/qos/logback/logback-classic/1.0.6/logback-classic-1.0.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.

SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]

com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions

There's no ObjectFactory with an @XmlElementDecl for the element {}Measure_Value_Max.
this problem is related to the following location:
    at protected java.util.List com.fra.jaxb.Measure.measureValueOrMeasureValueMaxOrMeasureValueMin
    at com.fra.jaxb.Measure
    at protected java.util.List com.fra.jaxb.UDMeasures.measure
    at com.fra.jaxb.UDMeasures
    at protected java.util.List com.fra.jaxb.UDInfo.udMeasuresOrUDAlarmsOrUDDiagnostics
    at com.fra.jaxb.UDInfo

at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:66)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:405)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:253)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:84)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:248)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:235)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:432)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:637)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:584)
at com.fra.mavenparser.unMarsh.doInfr(unMarsh.java:56)
at com.fra.mavenparser.Parser.main(Parser.java:26)

Answer 1

要获得ObjectFactory进程，您需要传递它作为引导JAXBContext的类之一，或者在生成模型的包名上创建JAXBContext。