如何从android中的SOAP响应获取数据？

Question

What I am trying to do is create a simple Web Service in ASP.NET and get Data from MSSQL server through that web service and use that data in my android application. As a novice, I have tried out this Helpful link to follow. I have used the same architecture as this tutorial suggest. But getting error in parsing the result (Soap Response) in my result. It is as below.

<?xml version="1.0" encoding="utf-8"?> <soap:Envelope
> xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema">
> <soap:Body><findContactResponse xmlns="http://tempuri.org/" />
> </soap:Body> </soap:Envelope>

and the GetPropertyCount() method is returning 0, on the other hand, arrayindexoutofBound error is coming up with index 0.

Here is my activity code. Where I have implemented async task for easy handling.

public class MainActivity extends Activity {

    /** Called when the activity is first created. */
    private static final String SOAP_ACTION = "http://tempuri.org/findContact";

    private static final String OPERATION_NAME = "findContact";// your webservice web method name

    private static final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";

    private static final String SOAP_ADDRESS = "http://10.0.2.2:58497/WebService/Service.asmx?wsdl";//"http://127.0.0.1:58497/WebService/Service.asmx";

    protected static final String TAG = null;

    TextView tvData1;
    EditText edata;
    Button button;
    String studentNo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvData1 = (TextView)findViewById(R.id.textView1);
        edata =(EditText)findViewById(R.id.editText1);

        button=(Button)findViewById(R.id.button1);

        button.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                    studentNo=edata.getText().toString();
                    new Submit().execute(studentNo);
            }
        });
    }

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

        @Override
        protected void onPreExecute() {

            super.onPreExecute();
        }

        @Override
        protected Void doInBackground(String... arg) {

            // TODO Auto-generated method stub
            SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
            PropertyInfo propertyInfo = new PropertyInfo();
            propertyInfo.type = PropertyInfo.STRING_CLASS;
            propertyInfo.name = "eid";

            Log.e("studentNo", studentNo);
            request.addProperty(propertyInfo);
            request.addProperty("eid", studentNo);

            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
            envelope.dotNet = true;
            envelope.setOutputSoapObject(request);
            HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
            httpTransport.debug = true;
            try  { 

                    httpTransport.call(SOAP_ACTION, envelope);
                    Log.e("Dump", httpTransport.responseDump.toString());
                SoapObject result=(SoapObject)envelope.bodyIn;
                if(result!= null){

                    Log.e("response", result.toString());
                    //To get the data.
                    System.out.println("********Count : "+ result.getPropertyCount());
                    String resultData=result.getProperty(0).toString();
                    Log.e("Found", resultData);
                }
                else{

                    Log.e("Obj", result.toString());
                }
            }  
            catch (Exception exception)   {

                Log.e("Not Found", exception.toString());
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {

            super.onPostExecute(result);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {

            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
}

Now can anyone just show me what went wrong for me? Or how can I get my response without exception? After debugging I came up with this line which is creating exceptions.

String resultData=result.getProperty(0).toString();

Thanks is advance for any kind of help.

Answer 1

Finally figured it out.

It was in adding property. And slightly changing the response parsing.

Here is the complete code which worked out for me.

Hope it helps others.

private static final String SOAP_ACTION = "http://tempuri.org/findContact";

    private static final String OPERATION_NAME = "findContact";// your webservice web method name

    private static final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";

    private static final String SOAP_ADDRESS = "http://10.0.2.2:58497/WebService/Service.asmx";

    protected static final String TAG = null;
    private static String fahren;

    TextView tvData1;
    EditText edata;
    Button button;
    String studentNo;
    String state;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvData1 = (TextView)findViewById(R.id.textView1);
        edata =(EditText)findViewById(R.id.editText1);

        button=(Button)findViewById(R.id.button1);

        button.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                studentNo=edata.getText().toString();
                new Submit().execute(studentNo);
            }
        });
    }

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

        @Override
        protected void onPreExecute() {
            super.onPreExecute();

        }

        @Override
        protected String doInBackground(String... arg) {
            // TODO Auto-generated method stub
            SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
            PropertyInfo propertyInfo = new PropertyInfo();
            propertyInfo.type = PropertyInfo.STRING_CLASS;
            propertyInfo.name = "eid";
            propertyInfo.setValue(studentNo);
            request.addProperty(propertyInfo);//problem was here

            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
            envelope.dotNet = true;
            envelope.setOutputSoapObject(request);
            HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
            httpTransport.debug = true;
            try{ 
                httpTransport.call(SOAP_ACTION, envelope);

                Log.e("RequestDump", httpTransport.requestDump.toString());
                Log.e("ResponseDump", httpTransport.responseDump.toString());

                SoapObject result=(SoapObject)envelope.bodyIn;
                if(result!= null){
                    state = result.getProperty(0).toString();
                    Log.e("Found", state);
                }
                else{
                    Log.e("Obj", result.toString());
                }
            }  
            catch (Exception exception)   {
                Log.e("Exception", exception.toString());
            }
            return state;
        }

        @Override
        protected void onPostExecute(String result) {
            super.onPostExecute(result);
            tvData1.setText(result);
        }
    }
}

I have implemented an async task as well to get rid of run time exceptions on Main thread. Need to add the request.addProperty(propertyInfo) properly.