Java XML DOM - 如何使用 Element.getAttributeNS

Question

我有 XML 节点:

    <soapenv:Body 
        xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" 
        wsu:Id="Id-223">
         ....
    </soapenv:Body>

我应该将什么值传递给 org.w3c.dom.Element.getAttributeNS(namespaceURI, localName) 来获取属性 Id 的值？

注意我可以使用 Element.getAttribute("wsu:Id") 来获取值，但我必须使用 getAttributeNS 方法。

其他信息: org.apache.wss4j.dom.message.token.Timestamp使用以下代码:

public  String getID() {
   //WSConstants.WSU_NS = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
    return element.getAttributeNS(WSConstants.WSU_NS, "Id");
}

我可以确认这段代码不起作用。

[我的代码]是从德米特里的回答中复制的 post 。您可以使用有问题的 XML 和 Dmitry 答案中的 validateSignature 方法轻松重现我的错误

File signatureFile = new File("/home/user1/Downloads/test.xml");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(signatureFile);

Node securityNode = doc.getElementsByTagName("wsse:Security").item(0);
Node bodyNode = doc.getElementsByTagName("soap:Body").item(0);
validateSignature(securityNode, bodyNode, key);

然后

public boolean validateSignature(Node signatureNode, Node bodyTag, PublicKey publicKey) {
        boolean signatureIsValid = false;
        try {
            // Create a DOM XMLSignatureFactory that will be used to unmarshal the
            // document containing the XMLSignature
            String providerName = System.getProperty
                    ("jsr105Provider", "org.jcp.xml.dsig.internal.dom.XMLDSigRI");
            XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM",
                    (Provider) Class.forName(providerName).newInstance());

            // Create a DOMValidateContext and specify a KeyValue KeySelector
            // and document context
            DOMValidateContext valContext = new DOMValidateContext(new X509KeySelector(publicKey), signatureNode);

            String nameSpaceURI = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd";
            org.w3c.dom.Element bodyEle = (Element) bodyTag;
            System.out.println(Main.nodeToString(bodyEle));

            valContext.setIdAttributeNS((Element) bodyTag, org.apache.ws.security.WSConstants.WSU_NS, "Id");



            // Unmarshal the XMLSignature.
            XMLSignature signature = fac.unmarshalXMLSignature(valContext);
            // Validate the XMLSignature.
            signatureIsValid = signature.validate(valContext);

        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return signatureIsValid;
    }

Answer 1

原来我漏掉了这段代码

dbFactory.setNamespaceAware(true);