Re: Parsing Soap Response in java

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


 > 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.
 >


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