所有子元素都用名称空间[Spring Batch&JAXB]标记

我想使用Spring批处理JAXB2Marshaller生成XML文件，但我在下面的问题上坚持了一周，提前谢谢

预期的xml

<?xml version="1.0" encoding="UTF-8"?>
<p:ContactList xmlns:p="test:ns:2012">
  <p:CompanyInfo>
    <p:CompanyName>Oracle</p:CompanyName>
    <p:DepartmentInfo>
      <p:DepartmentName>Java</p:DepartmentName>
    </p:DepartmentInfo>
  </p:CompanyInfo>
</p:ContactList>

ObjectFactory.java

@XmlRegistry
public class ObjectFactory {
    @XmlElementDecl(name = "CompanyInfo")
    public JAXBElement<CompanyInfo> createContactList(CompanyInfo value) {
        return new JAXBElement<CompanyInfo>(null, CompanyInfo.class, null, value);
    }
}

DepartmentInfo.java

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "DepartmentInfo", propOrder = {
    "departmentName"
})
public class DepartmentInfo {

    @XmlElement(name = "DepartmentName", required = true)
    protected String departmentName;
}

---

通过在NamespacePrefixMapper中添加getContextualNamespaceDecls解决了问题

@Override
public String[] getContextualNamespaceDecls() {
    return new String[] {"p", "test-ns-2012" };
}

---

在您的应用程序中，哪些因素起作用？在某处创建没有名称空间的JAXBElement，是否有可能导致根元素失去名称空间限定？非常感谢，新年快乐。rootTagName是org.springframework.batch.item.xml.statxeventitemwriter的属性，它将在startDocument方法writer.addfactory.createStartElement、getRootTagName中写入根元素；除了在ObjectFactory中，我没有在我的应用程序中添加任何JAXBElement，返回新的JAXBElementnew QNamep，test-ns-2012，CompanyInfo.class，null，value；

@javax.xml.bind.annotation.XmlSchema(namespace = "test:ns:2012", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED,
xmlns={@XmlNs(prefix="p", namespaceURI="test:ns:2012")})
package org.springframework.batch.contactlist;
import javax.xml.bind.annotation.XmlNs;

@XmlRegistry
public class ObjectFactory {
    @XmlElementDecl(name = "CompanyInfo")
    public JAXBElement<CompanyInfo> createContactList(CompanyInfo value) {
        return new JAXBElement<CompanyInfo>(null, CompanyInfo.class, null, value);
    }
}

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name="CompanyInfo")
@XmlType(name = "CompanyInfo", propOrder = {
    "companyName",
    "departmentInfo"
})
public class CompanyInfo {
    @XmlElement(name = "CompanyName")
    protected String companyName;
    @XmlElement(name = "DepartmentInfo", required = true)
    protected DepartmentInfo departmentInfo;
}

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "DepartmentInfo", propOrder = {
    "departmentName"
})
public class DepartmentInfo {

    @XmlElement(name = "DepartmentName", required = true)
    protected String departmentName;
}

@Override
public String[] getContextualNamespaceDecls() {
    return new String[] {"p", "test-ns-2012" };
}