How to call a SOAP web service on Android [closed]

Question

I am having a lot of trouble finding good information on how to call a standard SOAP/WSDL web service with Android. All I've been able to find are either very convoluted documents and references to "kSoap2" and then some bit about parsing it all manually with SAX. OK, that's fine, but it's 2008, so I figured there should be some good library for calling standard web services.

The web service is just basically one created in NetBeans. I would like to have IDE support for generating the plumbing classes. I just need the easiest/most-elegant way to contact a WSDL based web service from an Android-based phone.

Answer 1

If you can, go for JSON. Android comes with the complete org.json package

Answer 2

This is a working example of consuming SOAP web services in android.

**Note ::***DON'T FORGET TO ADD ksoap2.jar in your project and also add the INTERNET permission in AndroidManifest file*

public final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
public final String METHOD_NAME = "FahrenheitToCelsius";
public final String PROPERTY_NAME = "Fahrenheit";
public final String SOAP_ACTION = "http://tempuri.org/FahrenheitToCelsius";
public final String SOAP_ADDRESS = "http://www.w3schools.com/webservices/tempconvert.asmx";


private class TestAsynk extends AsyncTask<String, Void, String> {

    @Override
    protected void onPostExecute(String result) {

        super.onPostExecute(result);
        Toast.makeText(getApplicationContext(),
                String.format("%.2f", Float.parseFloat(result)),
                Toast.LENGTH_SHORT).show();
    }

    @Override
    protected String doInBackground(String... params) {
        SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,
                METHOD_NAME);
        request.addProperty(PROPERTY_NAME, params[0]);

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);
        envelope.dotNet = true;

        envelope.setOutputSoapObject(request);

        HttpTransportSE androidHttpTransport = new HttpTransportSE(
                SOAP_ADDRESS);
        Object response = null;
        try {

            androidHttpTransport.call(SOAP_ACTION, envelope);
            response = envelope.getResponse();
            Log.e("Object response", response.toString());

        } catch (Exception e) {
            e.printStackTrace();
        }
        return response.toString();
    }
}

Answer 3

About a year ago I was reading this thread trying to figure out how to do SOAP calls on Android - the suggestions to build my own using HttpClient resulted in me building my own SOAP library for Android:

IceSoap

Basically it allows you to build up envelopes to send via a simple Java API, then automatically parses them into objects that you define via XPath... for example:

<Dictionary>
    <Id></Id>
    <Name></Name>
</Dictionary>

Becomes:

@XMLObject("//Dictionary")
public class Dictionary {
    @XMLField("Id")
    private String id;

    @XMLField("Name")
    private String name;
}

I was using it for my own project but I figured it might help some other people so I've spent some time separating it out and documenting it. I'd really love it if some of your poor souls who stumble on this thread while googling "SOAP Android" could give it a go and get some benefit.

Answer 4

You may perform soap call as post over http with certain headers. I solved this question without additional libraries like ksoap2 Here is live code getting orders from soap service

private static HashMap<String,String> mHeaders = new HashMap<>();

static {
    mHeaders.put("Accept-Encoding","gzip,deflate");
    mHeaders.put("Content-Type", "application/soap+xml");
    mHeaders.put("Host", "35.15.85.55:8080");
    mHeaders.put("Connection", "Keep-Alive");
    mHeaders.put("User-Agent","AndroidApp");
    mHeaders.put("Authorization","Basic Q2xpZW50NTkzMzppMjR3s2U="); // optional
}public final static InputStream receiveCurrentShipments(String stringUrlShipments)
{
    int status=0;
    String xmlstring= "<soap:Envelope xmlns:soap=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:ser=\"http://35.15.85.55:8080/ServiceTransfer\">\n" +
            "   <soap:Header/>\n" +
            "   <soap:Body>\n" +
            "      <ser:GetAllOrdersOfShipment>\n" +
            "         <ser:CodeOfBranch></ser:CodeOfBranch>\n" +
            "      </ser:GetAllOrdersOfShipment>\n" +
            "   </soap:Body>\n" +
            "</soap:Envelope>";
    StringBuffer chaine = new StringBuffer("");

    HttpURLConnection connection = null;
    try {
        URL url = new URL(stringUrlShipments);
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("Content-Length", xmlstring.getBytes().length + "");
        connection.setRequestProperty("SOAPAction", "http://35.15.85.55:8080/ServiceTransfer/GetAllOrdersOfShipment");

        for(Map.Entry<String, String> entry : mHeaders.entrySet()) {
            String key = entry.getKey();
            String value = entry.getValue();
            connection.setRequestProperty(key,value);

        }

        connection.setRequestMethod("POST");
        connection.setDoInput(true);

        OutputStream outputStream = connection.getOutputStream();
        outputStream.write(xmlstring.getBytes("UTF-8"));
        outputStream.close();

        connection.connect();
        status = connection.getResponseCode();
    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {

        Log.i("HTTP Client", "HTTP status code : " + status);
    }

    InputStream inputStream = null;
    try {
        inputStream = connection.getInputStream();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return inputStream;
}

Answer 5

For me the easiest way is to use good tool to generate all required classes. Personally I use this site:

http://easywsdl.com/

It supports quite complex web services and uses ksoap2.

Answer 6

I would suggest checking out a very useful tool that helped me a lot. The guys who take care of that project were very helpful, too. www.wsdl2code.com/