Re: Parsing Soap Response in java

From:
Emna Sabri <emmna.90@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 11 Apr 2014 04:32:33 -0700 (PDT)
Message-ID:
<37957ad3-d000-474b-a1ec-e154c52bc150@googlegroups.com>
Le samedi 5 avril 2014 03:50:42 UTC+1, Arne Vajh=F8j a =E9crit :

On 4/4/2014 6:07 AM, emmna.90@gmail.com wrote:
 

Hi,i need to parse a soap response from an xml fileb in java to get

 
 > some specific values of it .For example ,i need to have the value v1 o=

f

 
 > string parameter in operationname1 and v2 of string parameter of
 
 > operationname2.i tried with some tuto in the net but it doesn't work
 
 > for me.
 
 >
 

Here is the soap response.xml.

 

 

<?xml version='1.0' encoding='utf-8'?>

 

<soapenv:Envelope xmlns:soapenv="...">

 

<soapenv:Body>

 

<ns1:CommandResponseData xmlns:ns1="...">

 

          <ns1:CommandResult>

 

             <ns1:TransactionResult>

 

               <ns1:OperationResult>

 

               <ns1:Operation name="operationname1" modifier="modif=

y1">

 

                      <ns1:ParameterList>

 

                       <ns1:StringParameter name="n1">v1</ns1:StringP=

arameter>

 

                       <ns1:DateTimeParametername="d1">value</ns1:Dat=

eTimeParameter>

 

                 </ns1:ParameterList>

 

         </ns1:Operation>
 

 

                   </ns1:Operation>

 

             <ns1:Operation name="operationname2" modifier="modify2=

">

 

                      <ns1:ParameterList>

 

      <ns1:StringParameter name="c1">v2</ns1:StringParameter>

 

                      </ns1:ParameterList>

 

         </ns1:Operation>
 

             </ns1:OperationResult>

 

         </ns1:TransactionResult>

 

     </ns1:CommandResult>

 

  </ns1:CommandResponseData>

 

    </soapenv:Body>

 

</soapenv:Envelope>

 
 
 
0) That is not the SOAP result as it is not well formed XML.
 
 
 
I will assume it looks like:
 
 
 
<?xml version='1.0' encoding='utf-8'?>
 
<soapenv:Envelope xmlns:soapenv="...">
 
     <soapenv:Body>
 
         <ns1:CommandResponseData xmlns:ns1="...">
 
             <ns1:CommandResult>
 
                 <ns1:TransactionResult>
 
                     <ns1:OperationResult>
 
                         <ns1:Operation name="operationname1"
 
modifier="modify1">
 
                             <ns1:ParameterList>
 
                                 <ns1:StringParameter
 
name="n1">v1</ns1:StringParameter>
 
                                 <ns1:DateTimeParameter
 
name="d1">value</ns1:DateTimeParameter>
 
                             </ns1:ParameterList>
 
                        </ns1:Operation>
 
                         <ns1:Operation name="operationname2"
 
modifier="modify2">
 
                             <ns1:ParameterList>
 
                                 <ns1:StringParameter
 
name="c1">v2</ns1:StringParameter>
 
                             </ns1:ParameterList>
 
                         </ns1:Operation>
 
                     </ns1:OperationResult>
 
                </ns1:TransactionResult>
 
            </ns1:CommandResult>
 
        </ns1:CommandResponseData>
 
    </soapenv:Body>
 
</soapenv:Envelope>
 
 
 
1) If you are process XML when you are doing SOAP then you are most
 
    like doing it wrong. You should be generating stub code from the
 
    WSDL and just make a method call and not worry about XML at all.
 
 
 
2) If you really need to parse the response manually, then I will
 
    recommend using XPath.
 
 
 
Example reading the above XML from a disk file soap.xml:
 
 
 
import java.io.FileReader;
 
import java.io.IOException;
 
 
 
import javax.xml.parsers.DocumentBuilder;
 
import javax.xml.parsers.DocumentBuilderFactory;
 
import javax.xml.parsers.ParserConfigurationException;
 
import javax.xml.xpath.XPath;
 
import javax.xml.xpath.XPathConstants;
 
import javax.xml.xpath.XPathExpressionException;
 
import javax.xml.xpath.XPathFactory;
 
 
 
import org.w3c.dom.Document;
 
import org.w3c.dom.Node;
 
import org.xml.sax.InputSource;
 
import org.xml.sax.SAXException;
 
 
 
public class ManualSoapParse {
 
    public static void main(String[] args) throws
 
ParserConfigurationException, SAXException, IOException,
 
XPathExpressionException {
 
         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 
         dbf.setNamespaceAware(false);
 
         DocumentBuilder db = dbf.newDocumentBuilder();
 
         Document doc = db.parse(new InputSource(new
 
FileReader("/work/soap.xml")));
 
         XPath xpath = XPathFactory.newInstance().newXPath();
 
         Node n1 =
 
(Node)xpath.evaluate("//Envelope/Body/CommandResponseData/CommandResult/T=

ransactionResult/OperationResult/Operation[@name='operationname1']/Parame=
terList/StringParameter[@name='n1']/text()",

 
doc.getDocumentElement(), XPathConstants.NODE);
 
         System.out.println(n1.getNodeValue());
 
         Node c1 =
 
(Node)xpath.evaluate("//Envelope/Body/CommandResponseData/CommandResult/T=

ransactionResult/OperationResult/Operation[@name='operationname2']/Parame=
terList/StringParameter[@name='c1']/text()",

 
doc.getDocumentElement(), XPathConstants.NODE);
 
         System.out.println(c1.getNodeValue());
 
     }
 
}
 
 
 
Note that I cheated and ignored namespaces. You can handle namespaces if
 
you need to or want to.
 
 
 
Arne


hi Arne ,thank you for your response ,i used the 2nd issue to manually pars=
e the soap response and it gives me errors in this line (System.out.println=
(n1.getNodeValue());)
I have even added the namespace context by adding this code Namespace=
Context ctx = new NamespaceContext() {

            public String getNamespaceURI(String prefix) {
                String uri;
                if (prefix.equals("ns1")) {
                    uri = "uri of ns1";
                } else {
                    uri = null;
                }
                return uri;
            }

            public String getPrefix(String namespaceURI) {
                throw new UnsupportedOperationException("Not supported yet.=
");
            }

            public Iterator getPrefixes(String namespaceURI) {
                throw new UnsupportedOperationException("Not supported yet.=
");
            }
        };
and still haven't succeed to get the values .
Thanks in advance for your help .

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