JAXB XJC编译器忽略XML Schema文档中的mixed = true

Question

XJC似乎完全忽略mixed="true"了我的XML Schema元素,因此不允许我提取文本内容.从下面的示例XML中,我需要能够提取"标题文本".如果没有mixed="true"被识别,就不会创建访问器,也不会从XML中解组:

<?xml version="1.0" encoding="UTF-8"?>
<title xmlns="urn:hl7-org:v3" integrityCheck="true">Title Text</title>

这是一个完整但最小化的模式,用于演示此问题:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xs:schema targetNamespace="urn:hl7-org:v3"
  xmlns:xs="http://www.w3.org/2001/XMLSchema"
  xmlns="urn:hl7-org:v3"
  xmlns:mif="urn:hl7-org:v3/mif"
  elementFormDefault="qualified">

  <xs:complexType name="ST" mixed="true">
  <xs:complexContent>
         <xs:restriction base="ED">
            <xs:sequence>
               <xs:element name="reference" type="xs:string" minOccurs="0" maxOccurs="0"/>
               <xs:element name="thumbnail" type="xs:string" minOccurs="0" maxOccurs="0"/>
            </xs:sequence>
            <xs:attribute name="compression" type="xs:string" use="prohibited"/>
         </xs:restriction>
      </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="ED" mixed="true">
    <xs:complexContent>
      <xs:extension base="BIN">
        <xs:sequence>
          <xs:element name="reference" type="xs:string" minOccurs="0" maxOccurs="1" />
          <xs:element name="thumbnail" minOccurs="0" maxOccurs="1" type="xs:string" />
            </xs:sequence>
        <xs:attribute name="compression" type="xs:string" use="optional" />
        <xs:attribute name="integrityCheck" type="xs:string" use="optional" />
        <xs:attribute name="integrityCheckAlgorithm" type="xs:string" use="optional" default="SHA-1" />
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="BIN" abstract="true" mixed="true">
    <xs:complexContent>
      <xs:extension base="ANY">
        <xs:attribute name="representation" use="optional" type="xs:string" default="TXT" />
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="ANY" abstract="true">
    <xs:attribute name="nullFlavor" type="xs:string" use="optional" />
  </xs:complexType>

  <xs:element name="title" type="ST" />
</xs:schema>

请注意,在上面我混合了="true".尽管如此,生成的模式片段不包含对它的引用,生成的类XmlMixed也不使用注释,也不使用值或内容访问器:

/**
 * <p>Java class for ST complex type.
 * 
 * <p>The following schema fragment specifies the expected content contained within this class.                                                                                                                                              
 * 
 * <pre>
 * <complexType name="ST">
 *   <complexContent>
 *     <restriction base="{urn:hl7-org:v3}ED">
 *       <sequence>
 *         <element name="reference" type="{http://www.w3.org/2001/XMLSchema}string" maxOccurs="0" minOccurs="0"/>
 *         <element name="thumbnail" type="{http://www.w3.org/2001/XMLSchema}string" maxOccurs="0" minOccurs="0"/>
 *       </sequence>
 *     </restriction>
 *   </complexContent>
 * </complexType>
 * </pre>
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "ST")
public class ST
    extends ED
{
}

为什么XJC/JAXB完全无视我的混合内容字段？我已经尝试了JAXB 2.1和JAXB 2.2,但生成的代码中只存在微不足道的差异.

注意:我无法更改架构,因为实际架构是符合标准的医疗保健(HL7)架构.

Answer 1

http://blogs.oracle.com/mgrebac/entry/handling_extended_mixed_content_in

这有效!只需像这样创建一个绑定文件:

<?xml version="1.0" encoding="UTF-8"?>
<jaxb:bindings
 xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" jaxb:version="2.0"
 xmlns:xjc= "http://java.sun.com/xml/ns/jaxb/xjc" jaxb:extensionBindingPrefixes="xjc">
  <jaxb:globalBindings generateMixedExtensions="true"/>
</jaxb:bindings>

然后按照通常的方式在命令行上使用-b参数.

Answer 2

经过更多的研究,我什么也做不了,只是得出结论,这是我提交的一个错误.它被承认为JAXB问题#792.