java.lang.IllegalArgumentException : local part cannot be "null" when creating a QName

Question

将以下 xml 转换为文档后，我尝试将其添加到我的 SOAP 体中

<ns2:OSSRequest xmlns:ns2="http://www.someurl">
<requestBody>
    <property>
        <address>
            <addressId>someValue</addressId>
            <municipality>someValue</municipality>
            <postalCode>someValue</postalCode>
            <province>someValue</province>
            <streetNumber>someValue</streetNumber>
        </address>
    </property>
    <requestedProducts>
        <products>someValue</products>
        <products>someValue</products>
    </requestedProducts>
</requestBody>
<requestHeader/>

但我收到错误

java.lang.IllegalArgumentException: local part cannot be "null" when creating a QName

这是我用来将 xml 转换为 SOAP 体的代码

MessageFactory factory = MessageFactory.newInstance();
SOAPMessage message = factory.createMessage();
SOAPHeader header_soap = message.getSOAPHeader();
SOAPBody body = message.getSOAPBody();
Document document = convertStringToDocument(xml);
body.addDocument(document); // getting error on this line

以下是将xml转换为文档的代码

private Document convertStringToDocument(String xmlStr) {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    try {
        builder = factory.newDocumentBuilder();
        Document doc = builder.parse(new InputSource(new StringReader(xmlStr)));
        return doc;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

我的 xml 无效吗？或者我在将其添加到文档时丢失了任何配置？

Answer 1

看看这篇文章，看起来您需要向 header 添加一个元素，指定 QName 和 localPart。

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