JAXB编组期间的附加名称空间前缀

我在Java 1.6_u33中遇到了JAXB编组问题

我有5个模式.xsd，用于生成Java类，然后编组XML文件 .

问题只有一种情况 - 对于这个文件，JAXB生成额外的名称空间前缀ns2 . 这很奇怪，因为所有模式都是相同的，并且编组机制对于所有模式都是通用的 .

生成机制：

JAXBContext context = JAXBContext.newInstance(type);
    Marshaller marshaller = context.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
            Boolean.TRUE);
    marshaller.marshal(file, doc);

而第一行的坏xml：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<ns2:Document xmlns:ns2="urn:iso:std:iso:20022:tech:xsd:camt.056.001.01">
  <ns2:camt.056.001.01>
    <ns2:Assgnmt>
      <ns2:Id>NOTPROVIDED</ns2:Id>
      <ns2:CreDtTm>2008-06-24T00:00:00</ns2:CreDtTm>
    </ns2:Assgnmt>

使用相同的设置从另一个xsd生成的xml是：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:camt.029.001.03">
  <camt.029.001.03>
    <Assgnmt>
      <Id>NOTPROVIDED</Id>
      <CreDtTm>2008-03-26T00:00:00</CreDtTm>
    </Assgnmt>

我会非常感谢任何帮助......谢谢 .

我无法在我的问题中添加答案，所以我在这里添加我的解释 .

对于不正常工作的包：

包信息：

@javax.xml.bind.annotation.XmlSchema(namespace = "urn:iso:std:iso:20022:tech:xsd:camt.056.001.01", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
package eu.axabank.axaconverter.datamodel.camt056;

对象的工厂

package eu.axabank.axaconverter.datamodel.camt056;

import javax.xml.bind.annotation.XmlRegistry;


/**
 * This object contains factory methods for each 
 * Java content interface and Java element interface 
 * generated in the eu.axabank.axaconverter.datamodel.camt056 package. 
 * <p>An ObjectFactory allows you to programatically 
 * construct new instances of the Java representation 
 * for XML content. The Java representation of XML 
 * content can consist of schema derived interfaces 
 * and classes representing the binding of schema 
 * type definitions, element declarations and model 
 * groups.  Factory methods for each of these are 
 * provided in this class.
 * 
 */
@XmlRegistry
public class ObjectFactory {


    /**
     * Create a new ObjectFactory that can be used to create new instances of schema derived classes for package: eu.axabank.axaconverter.datamodel.camt056
     * 
     */
    public ObjectFactory() {
    }

    /**
     * Create an instance of {@link CaseAssignmentBIC }
     * 
     */
    public CaseAssignmentBIC createCaseAssignmentBIC() {
        return new CaseAssignmentBIC();
    }

    /**
     * Create an instance of {@link UnderlyingTransaction }
     * 
     */
    public UnderlyingTransaction createUnderlyingTransaction() {
        return new UnderlyingTransaction();
    }

    /**
     * Create an instance of {@link PaymentTransactionInformation }
     * 
     */
    public PaymentTransactionInformation createPaymentTransactionInformation() {
        return new PaymentTransactionInformation();
    }

    /**
     * Create an instance of {@link RemittanceInformation }
     * 
     */
    public RemittanceInformation createRemittanceInformation() {
        return new RemittanceInformation();
    }

    /**
     * Create an instance of {@link OriginalTransactionReference }
     * 
     */
    public OriginalTransactionReference createOriginalTransactionReference() {
        return new OriginalTransactionReference();
    }

    /**
     * Create an instance of {@link ControlData }
     * 
     */
    public ControlData createControlData() {
        return new ControlData();
    }

    /**
     * Create an instance of {@link Document }
     * 
     */
    public Document createDocument() {
        return new Document();
    }

    /**
     * Create an instance of {@link CancellationReasonInformationBICorName }
     * 
     */
    public CancellationReasonInformationBICorName createCancellationReasonInformationBICorName() {
        return new CancellationReasonInformationBICorName();
    }

    /**
     * Create an instance of {@link ActiveOrHistoricCurrencyAndAmountEUR }
     * 
     */
    public ActiveOrHistoricCurrencyAndAmountEUR createActiveOrHistoricCurrencyAndAmountEUR() {
        return new ActiveOrHistoricCurrencyAndAmountEUR();
    }

    /**
     * Create an instance of {@link Camt056 }
     * 
     */
    public Camt056 createCamt056() {
        return new Camt056();
    }

}

对于良好的工作包：

包信息：

@javax.xml.bind.annotation.XmlSchema(namespace = "urn:iso:std:iso:20022:tech:xsd:camt.029.001.03", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
package eu.axabank.axaconverter.datamodel.camt029;

对象工厂看起来完全一样（当然命名除外） .

我尝试了QName元素 - 由于机制的一般性质而不方便 - 但是有任何好的结果 .

我使用的是NamespacePrefixMapper：

NamespacePrefixMapper mapper = new NamespacePrefixMapper() {
            public String getPreferredPrefix(String namespaceUri,
                    String suggestion, boolean requirePrefix) {
                return "";
            }
        };
        marshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper",
                mapper);

但是这个映射器没有用！他正在设置 - 但是在编组过程中从未调用方法getPreferredPrefix .

我不明白我的4个模式的不同beet，这不工作...