我正在尝试使用castor生成Java类以将xml绑定到对象。我尝试绑定的xml片段是一个spring xml文件，因此我使用castor提供的工具获取dtd并生成xsd，但是一旦我尝试生成源文件，我收到以下错误
java.lang.IllegalArgumentException: Duplicate name found as a class member: _key
下面是我生成的xsd文件:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="generated.castor.org">
<element name="entry">
<complexType>
<sequence>
<element ref="key" minOccurs="0" />
<choice minOccurs="0">
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
</sequence>
<attribute name="value-ref" type="string" />
<attribute name="key" type="string" />
<attribute name="value" type="string" />
<attribute name="key-ref" type="string" />
</complexType>
</element>
<element name="arg-type">
<complexType mixed="true">
<attribute name="match" type="string" />
</complexType>
</element>
<element name="bean">
<complexType>
<sequence>
<element ref="description" minOccurs="0" />
<choice minOccurs="0" maxOccurs="unbounded">
<element ref="meta" />
<element ref="constructor-arg" />
<element ref="property" />
<element ref="lookup-method" />
<element ref="replaced-method" />
</choice>
</sequence>
<attribute name="name" type="string" />
<attribute name="id" type="ID" />
<attribute name="class" type="string" />
<attribute name="singleton" default="true">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
<attribute name="factory-method" type="string" />
<attribute name="dependency-check" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="simple" />
<enumeration value="none" />
<enumeration value="objects" />
<enumeration value="all" />
</restriction>
</simpleType>
</attribute>
<attribute name="lazy-init" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
<attribute name="autowire-candidate" default="true">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
<attribute name="init-method" type="string" />
<attribute name="autowire" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="no" />
<enumeration value="byName" />
<enumeration value="autodetect" />
<enumeration value="byType" />
<enumeration value="constructor" />
</restriction>
</simpleType>
</attribute>
<attribute name="destroy-method" type="string" />
<attribute name="abstract" default="false">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
<attribute name="depends-on" type="string" />
<attribute name="parent" type="string" />
<attribute name="factory-bean" type="string" />
</complexType>
</element>
<element name="prop">
<complexType mixed="true">
<attribute name="key" type="string" use="required" />
</complexType>
</element>
<element name="beans">
<complexType>
<sequence>
<element ref="description" minOccurs="0" />
<choice minOccurs="0" maxOccurs="unbounded">
<element ref="import" />
<element ref="alias" />
<element ref="bean" />
</choice>
</sequence>
<attribute name="default-destroy-method" type="string" />
<attribute name="default-lazy-init" default="false">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
<attribute name="default-init-method" type="string" />
<attribute name="default-dependency-check" default="none">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="simple" />
<enumeration value="none" />
<enumeration value="objects" />
<enumeration value="all" />
</restriction>
</simpleType>
</attribute>
<attribute name="default-autowire" default="no">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="no" />
<enumeration value="byName" />
<enumeration value="autodetect" />
<enumeration value="byType" />
<enumeration value="constructor" />
</restriction>
</simpleType>
</attribute>
<attribute name="default-merge" default="false">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
</complexType>
</element>
<element name="props">
<complexType>
<sequence>
<element ref="prop" minOccurs="0" maxOccurs="unbounded" />
</sequence>
<attribute name="merge" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
</complexType>
</element>
<element name="lookup-method">
<complexType>
<attribute name="bean" type="string" />
<attribute name="name" type="string" />
</complexType>
</element>
<element name="replaced-method">
<complexType>
<sequence>
<element ref="arg-type" minOccurs="0" maxOccurs="unbounded" />
</sequence>
<attribute name="name" type="string" />
<attribute name="replacer" type="string" />
</complexType>
</element>
<element name="ref">
<complexType>
<attribute name="bean" type="string" />
<attribute name="local" type="IDREF" />
<attribute name="parent" type="string" />
</complexType>
</element>
<element name="property">
<complexType>
<sequence>
<element ref="description" minOccurs="0" />
<element ref="meta" minOccurs="0" maxOccurs="unbounded" />
<choice minOccurs="0">
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
</sequence>
<attribute name="name" type="string" use="required" />
<attribute name="ref" type="string" />
<attribute name="value" type="string" />
</complexType>
</element>
<element name="import">
<complexType>
<attribute name="resource" type="string" use="required" />
</complexType>
</element>
<element name="meta">
<complexType>
<attribute name="key" type="string" use="required" />
<attribute name="value" type="string" use="required" />
</complexType>
</element>
<element name="set">
<complexType>
<choice minOccurs="0" maxOccurs="unbounded">
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
<attribute name="value-type" type="string" />
<attribute name="merge" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
</complexType>
</element>
<element name="null">
<complexType mixed="true" />
</element>
<element name="alias">
<complexType>
<attribute name="name" type="string" use="required" />
<attribute name="alias" type="string" use="required" />
</complexType>
</element>
<element name="value">
<complexType mixed="true">
<attribute name="type" type="string" />
</complexType>
</element>
<element name="constructor-arg">
<complexType>
<sequence>
<element ref="description" minOccurs="0" />
<choice minOccurs="0">
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
</sequence>
<attribute name="index" type="string" />
<attribute name="type" type="string" />
<attribute name="ref" type="string" />
<attribute name="value" type="string" />
</complexType>
</element>
<element name="description">
<complexType mixed="true" />
</element>
<element name="list">
<complexType>
<choice minOccurs="0" maxOccurs="unbounded">
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
<attribute name="value-type" type="string" />
<attribute name="merge" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
</complexType>
</element>
<element name="map">
<complexType>
<sequence>
<element ref="entry" minOccurs="0" maxOccurs="unbounded" />
</sequence>
<attribute name="value-type" type="string" />
<attribute name="key-type" type="string" />
<attribute name="merge" default="default">
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="default" />
<enumeration value="false" />
<enumeration value="true" />
</restriction>
</simpleType>
</attribute>
</complexType>
</element>
<element name="idref">
<complexType>
<attribute name="bean" type="string" />
<attribute name="local" type="IDREF" />
</complexType>
</element>
<element name="key">
<complexType>
<choice>
<element ref="bean" />
<element ref="ref" />
<element ref="idref" />
<element ref="value" />
<element ref="null" />
<element ref="list" />
<element ref="set" />
<element ref="map" />
<element ref="props" />
</choice>
</complexType>
</element>
有没有人遇到类似的问题，知道有什么方法来解决这个问题?
对于具体的脚轮问题，我想你应该提供更多的信息。似乎有一个重复的字段，所以继续逐个删除每个"key"属性，直到它开始工作。
但你想做的是一件奇怪的事情。Spring的DTD/XSD旨在提供XML配置——它们不应该表示对象。如果您想用代码而不是xml配置spring，请使用javaconfig.