자바 XPath는

Question

를 사용하여 SOAP 메세지를 지정하지 않고 읽어 나는 다음과 같은 SOAP 메시지가 :

<?xml version="1.0" encoding="UTF-8"?> 
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"><soap:Header><wsse:Security env:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"><wsse:UsernameToken xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"><wsse:Username>test</wsse:Username><wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">11111111</wsse:Password></wsse:UsernameToken></wsse:Security></soap:Header> 
    <soap:Body xmlns:ns1="http://www.acme.co.za"> 
     <ns1:pingMeCallback> 
      <ns1:message>abc</ns1:message> 
     </ns1:pingMeCallback> 
    </soap:Body> 
</soap:Envelope> 

내가 메시지 값에 읽을 XPath를 사용할 필요가 있습니다. 내 코드는 다음과 같습니다 :

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 
    factory.setNamespaceAware(true); 
    DocumentBuilder builder = factory.newDocumentBuilder(); 

    InputSource data = new InputSource(in); 
    Node doc = builder.parse("ping.xml"); 

    // set up a document purely to hold the namespace mappings 
    DOMImplementation impl = builder.getDOMImplementation(); 
    Document namespaceHolder = impl.createDocument("http://www.acme.co.za/","f:namespaceMapping", null); 
    Element root = namespaceHolder.getDocumentElement(); 

    root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:SOAP","http://schemas.xmlsoap.org/soap/envelope/"); 
    root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ns1","http://schemas.xmlsoap.org/soap/envelope/"); 

    NodeList results = XPathAPI.selectNodeList(doc,"/SOAP:Envelope/SOAP:Body/ns1:pingMeCallback/ns1:message",root); 

    for (int i = 0; i < results.getLength(); i++) { 
    Node result = results.item(i); 
    XObject value = XPathAPI.eval(result, "string()"); 
    System.out.println(value.str()); 
    } 

내 코드는 아무 것도 출력하지 않습니다. 아무도 내가 뭘하고 있는지 알아낼 수 있니?

Answer 1

코드의 나머지 부분을 통해 사라,하지만 적이 :

root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ns1","http://schemas.xmlsoap.org/soap/envelope/"); 

오른쪽 공간처럼 보이지 않는다.