我想从一个模式生成
Java类的简单方法,以便我可以轻松地反序列化xml并使用对象进行解释.
使用Jaxb会很棒,但我对任何可以完成同样事情的框架持开放态度.架构是HL7 CDA架构.它非常复杂,我猜这就是我遇到问题的原因.
我尝试使用xjc和JAXB(这将是理想的)但我得到以下错误
xjc -d ~/code/ccd/java -p net.msdelta.cda -xmlschema -verbose CDA.xsd
parsing a schema...
compiling a schema...
[INFO] generating code
unknown location
Exception in thread "main" java.lang.IllegalArgumentException: trying to create the same field twice: id
at com.sun.codemodel.internal.JDefinedClass.field(JDefinedClass.java:408)
at com.sun.codemodel.internal.JDefinedClass.field(JDefinedClass.java:379)
at com.sun.tools.internal.xjc.generator.bean.field.AbstractFieldWithVar.createField(AbstractFieldWithVar.java:61)
at com.sun.tools.internal.xjc.generator.bean.field.SingleField.<init>(SingleField.java:78)
at com.sun.tools.internal.xjc.generator.bean.field.SingleField.<init>(SingleField.java:65)
at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.sun.tools.internal.xjc.generator.bean.field.GenericFieldRenderer.generate(GenericFieldRenderer.java:53)
at com.sun.tools.internal.xjc.generator.bean.field.DefaultFieldRenderer.generate(DefaultFieldRenderer.java:68)
at com.sun.tools.internal.xjc.generator.bean.BeanGenerator.generateFieldDecl(BeanGenerator.java:736)
at com.sun.tools.internal.xjc.generator.bean.BeanGenerator.generateClassBody(BeanGenerator.java:524)
at com.sun.tools.internal.xjc.generator.bean.BeanGenerator.<init>(BeanGenerator.java:224)
at com.sun.tools.internal.xjc.generator.bean.BeanGenerator.generate(BeanGenerator.java:164)
at com.sun.tools.internal.xjc.model.Model.generateCode(Model.java:275)
at com.sun.tools.internal.xjc.Driver.run(Driver.java:332)
at com.sun.tools.internal.xjc.Driver.run(Driver.java:180)
at com.sun.tools.internal.xjc.Driver._main(Driver.java:105)
at com.sun.tools.internal.xjc.Driver.access$000(Driver.java:63)
at com.sun.tools.internal.xjc.Driver$1.run(Driver.java:85)
如果此问题是由具有属性和具有相同名称的元素的复杂类型引起的,那么您可以使用JAXB模式绑定文件来更改与其中一个XML节点对应的字段名称：
原文链接：https://www.f2er.com/xml/292421.html<jxb:bindings node="//xs:attributeGroup[@name='db.common.attributes']/xs:attribute[@name='version']">
<jxb:property name="commonVersion"/>
</jxb:bindings>
如果问题发生是因为元素在序列中多次出现(即在选择结构的内部和外部).您将需要使用以下XJC扩展：
<jxb:globalBindings>
<xjc:simple />
</jxb:globalBindings>
有关完整示例,请参阅
> How do I create JAXB bindings for docbook
与JAXB和HL7 CDA架构相关的链接
