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Re: Parsing Soap Response in java

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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 of
 > 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="modify1">
>                       <ns1:ParameterList>
>                        <ns1:StringParameter name="n1">v1</ns1:StringParameter>
>                        <ns1:DateTimeParametername="d1">value</ns1:DateTimeParameter>
>                  </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/TransactionResult/OperationResult/Operation[@name='operationname1']/ParameterList/StringParameter[@name='n1']/text()", 
doc.getDocumentElement(), XPathConstants.NODE);
	     System.out.println(n1.getNodeValue());
	     Node c1 = 
(Node)xpath.evaluate("//Envelope/Body/CommandResponseData/CommandResult/TransactionResult/OperationResult/Operation[@name='operationname2']/ParameterList/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

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Parsing Soap Response in java emmna.90@gmail.com - 2014-04-04 03:07 -0700
  Re: Parsing Soap Response in java Jeff Higgins <jeff@invalid.invalid> - 2014-04-04 15:20 -0400
  Re: Parsing Soap Response in java Roedy Green <see_website@mindprod.com.invalid> - 2014-04-04 15:28 -0700
  Re: Parsing Soap Response in java Arne Vajhøj <arne@vajhoej.dk> - 2014-04-04 22:50 -0400
    Re: Parsing Soap Response in java Emna Sabri <emmna.90@gmail.com> - 2014-04-11 04:32 -0700
      Re: Parsing Soap Response in java Arne Vajhøj <arne@vajhoej.dk> - 2014-04-11 21:03 -0400
  Re: Parsing Soap Response in java Silvio <silvio@internet.com> - 2014-04-11 13:49 +0200
    Re: Parsing Soap Response in java Emna Sabri <emmna.90@gmail.com> - 2014-04-11 05:31 -0700
      Re: Parsing Soap Response in java Silvio <silvio@internet.com> - 2014-04-11 18:05 +0200
      Re: Parsing Soap Response in java Arne Vajhøj <arne@vajhoej.dk> - 2014-04-11 21:05 -0400
        Re: Parsing Soap Response in java Emna Sabri <emmna.90@gmail.com> - 2014-04-17 13:42 -0700
  Re: Parsing Soap Response in java lipska the kat <lipskathekat@example.com> - 2014-04-12 09:56 +0100

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