How to pass parameter to a webservice using ksoap2?
I'm using Eclipse IDE to develop an android app. I'm trying to connect to a .net webservice. I'm using ksoap2 version 2.3
When I'm calling a webmethod with no parameters, it works fine. When I come to pass a parameter to the webmethod, I get null (while debugging the webservice I discovered that) and I get a null from the webmethod in the client side code.
Code:
package com.examples.hello;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class HelloActivity extends Activity {
/** Called when the activity is first created. */
private static final String SOAP_ACTION = "http://Innovation/HRService/stringBs";
private static final String METHOD_NAME = "stringBs";
private static final String NAMESPACE = "http://Innovation/HRService/";
private static final String URL = "http://196.205.5.170/mdl/hrservice.asmx";
TextView tv;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv=(TextView)findViewById(R.id.text1);
call();
}
public void call()
{
try {
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
//PropertyInfo PI = new PropertyInfo();
//request.addProperty("a", "myprop");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
envelope.dotNet=true;
envelope.encodingStyle = SoapSerializationEnvelope.XSD;
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
Object result = (Object)envelope.getResponse();
String results = result.toString();
tv.setText( ""+results);
} catch (Exception e) {
tv.setText(e.getMessage());
}
}
}
Why do I get the null response, how do I pass a parameter to a webservice using ksoap2?
Asked by: Rafael529 | Posted: 24-01-2022
Answer 1
Instead of
request.addProperty("a", "myprop");
try using
request.addProperty("arg0", "myprop");
I'm not an expect on ksoap2 but i'm pretty sure this sets the value of the first parameter to your web service function. Has worked perfectly for me.
Answered by: Fenton729 | Posted: 25-02-2022Answer 2
Calling webservice by passing parameters from j2me
SoapObject request = new SoapObject("http://www.webserviceX.NET", "GetCitiesByCountry");
String soapAction = "http://www.webserviceX.NET/GetCitiesByCountry";
request.addProperty("CountryName", "india");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut = request;
envelope.dotNet = true;
HttpTransport ht = new HttpTransport("http://www.webservicex.net/globalweather.asmx");
ht.debug = true;
//System.err.println( ht.requestDump );
ht.call(soapAction,envelope);
System.out.println("####################: " +envelope.getResponse());
//SoapObject result = (SoapObject)envelope.getResponse();
Answer 3
I have been working with this for 2 days now and i finally got the solution. I submit my complete code and hope this will help. It Can pass Parameters and get response.
Inside the WebService file in .net C#:
[WebService(Namespace = "http://something/webservice/v1")]
[WebMethod]
public DateTime[] Function(Guid organizationId, Guid categoryId)
{
return ...;
}
Inside the Android code:
private final static String URL = "http://something/WebServices/WebService.asmx";
private final static String NAMESPACE = "http://something/webservice/v1";
public ArrayList<Object> getSoapObject(String METHOD_NAME, String SOAP_ACTION, Map<String, String> parameters){
try {
ArrayList<Object> sol = new ArrayList<Object>();
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
if(parameters != null){
for (Entry<String, String> para : parameters.entrySet()) {
request.addProperty(para.getKey(), para.getValue());
}
}
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet=true;
envelope.setOutputSoapObject(request);
Log.d("Body", envelope.bodyOut.toString());
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapObject result=(SoapObject)envelope.getResponse();
for(int i = 0; i < result.getPropertyCount(); i++){
sol.add(result.getProperty(i));
}
return sol;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public void getMenuEndDate(String orgId, String categoryId){
Date startDate = null;
Date endDate = null;
HashMap<String, String> parameters = new HashMap<String, String>();
parameters.put("organizationId", orgId);
parameters.put("categoryId", categoryId);
ArrayList<Object> sol = getSoapObject("Function", "http://something/webservice/v1/Function", parameters);
SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd");
try {
startDate = (Date)dateFormatter.parse(sol.get(0).toString());
endDate = (Date)dateFormatter.parse(sol.get(1).toString());
} catch (ParseException e) {
Log.d(TAG, "Exception i Date-Formatering");
e.printStackTrace();
}
}
Things to check:
- Are the parameters named exactly the same as what is expected in the Web Service?
- Check if you use Trailing "/" for the Namespace. Have the same in you application.
Answer 4
Try commenting out the line:
envelope.dotNet=true;
I did the same thing you did and when I read about this property being a really ugly hack, I commented it out for testing purposes and my parameter got passed correctly.
Answered by: Lily503 | Posted: 25-02-2022Answer 5
You will have to declare parameter type in client code:
SoapObject request = new SoapObject("http://tempuri.org/", "mymethod");
PropertyInfo p = new PropertyInfo();
p.setName("param_name_from_webservice");
p.setValue(true);
p.setType(Boolean.class);
request.addProperty(p);
Answer 6
In here Problem With the Order of Codes You Wrote, Don't Worry Try this, It's Worked for me.
private class ConversionAsyncTask extends AsyncTask<Void,Void,Void> {
private SoapPrimitive response;
protected Void doInBackground(Void... params) {
SoapObject request = new SoapObject(NAMESPACE, METHOD);
request.addProperty("a","5");
SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
soapEnvelope.setOutputSoapObject(request);
soapEnvelope.dotNet = true;
soapEnvelope.implicitTypes = true;
try {
HttpTransportSE aht = new HttpTransportSE(URL);
aht.call(SOAP_ACTION, soapEnvelope);
response = (SoapPrimitive) soapEnvelope.getResponse();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void result) {
super.onPostExecute(result);
temperatureTxt.setText("Status: " + response);
}
}
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