Dot Net Webservice Call - Android Example

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In This example calling dot net webservice to get/send data to server. Using ksoap2-android-assembly-2.4-jar-with-dependencies.jar to make soap call.
Accessing a live web service ConvertWeight from http://www.webserviceX.NET/ which convert weight from one unit to another.

Download the KSOAP jar file from following link:

DOWNLOAD KSOAP JAR FILE

Steps :

   1. Add jar ksoap2-android-assembly-2.4-jar-with-dependencies.jar in your project.

   2. Creating class WebserviceCall.java and define webservice namespace and url and make soap call. Accessing a live web service ConvertWeight from http://www.webserviceX.NET/ which convert weight from one unit to another.

   3. Call WebserviceCall.java object to call getConvertedWeight method.

   4. Showing response in a toast(alert) and on screen.

Project Structure :

Add jar ksoap2-android-assembly-2.4-jar-with-dependencies.jar in your project.

Right Click To Your Project ==> Go To Project Properties ==> Select Java Build Path ==> Click Add Jar Button And Select Downloaded ksoap2-android-assembly-2.4-jar-with-dependencies.jar file.

File : src/DotNetWebService.java

Main Activity to intialize webservice (defined below) class object to call method (getConvertedWeight) and pass webservice values and method name.

import com.androidexample.dotnetwebservice.WebserviceCall;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import android.app.Activity;

public class DotNetWebService extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.dot_net_web_service);

         

        final Button webserviceCallButton = (Button) findViewById(R.id.webservice);

        final TextView webserviceResponse = (TextView) findViewById(R.id.webserviceResponse);

         

        webserviceCallButton.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                 

                webserviceResponse.setText("Requesting to server .....");

                 

                //Create Webservice class object

                WebserviceCall com = new WebserviceCall();

                 

                // Initialize variables

                String weight   = "18000";

                String fromUnit = "Grams";

                String toUnit   = "Kilograms";

                 

                //Call Webservice class method and pass values and get response

                String aResponse = com.getConvertedWeight("ConvertWeight", weight, fromUnit, toUnit);  

                 

                //Alert message to show webservice response

                Toast.makeText(getApplicationContext(), weight+" Gram= "+aResponse+" Kilograms",

                   Toast.LENGTH_LONG).show();

                    

                Log.i("AndroidExampleOutput", "----"+aResponse);

                 

                webserviceResponse.setText("Response : "+aResponse);

            }

        });

         

    }

}

File : src/WebserviceCall.java

.Net Webservice call class , contains soap calls and methods.

import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.PropertyInfo;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.AndroidHttpTransport;

/**

 * @author AndroidExample DotNetWebService Class

 *

 */

public class WebserviceCall {

     

    /**

     * Variable Decleration................

     *

     */

    String namespace = "http://www.webserviceX.NET/";

    private String url = "http://www.webservicex.net/ConvertWeight.asmx";

     

    String SOAP_ACTION;

    SoapObject request = null, objMessages = null;

    SoapSerializationEnvelope envelope;

    AndroidHttpTransport androidHttpTransport;

     

    WebserviceCall() {

    }

     

    /**

     * Set Envelope

     */

    protected void SetEnvelope() {

         

        try {

             

            // Creating SOAP envelope          

            envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

             

            //You can comment that line if your web service is not .NET one.

            envelope.dotNet = true;

             

            envelope.setOutputSoapObject(request);

            androidHttpTransport = new AndroidHttpTransport(url);

            androidHttpTransport.debug = true;

             

        } catch (Exception e) {

            System.out.println("Soap Exception---->>>" + e.toString());   

        }

    }

    // MethodName variable is define for which webservice function  will call

    public String getConvertedWeight(String MethodName, String weight,

            String fromUnit, String toUnit)

      {

         

        try {

            SOAP_ACTION = namespace + MethodName;

             

            //Adding values to request object

            request = new SoapObject(namespace, MethodName);

             

            //Adding Double value to request object

            PropertyInfo weightProp =new PropertyInfo();

            weightProp.setName("Weight");

            weightProp.setValue(weight);

            weightProp.setType(double.class);

            request.addProperty(weightProp);

             

            //Adding String value to request object

            request.addProperty("FromUnit", "" + fromUnit);

            request.addProperty("ToUnit", "" + toUnit);

             

            SetEnvelope();

             

            try {

                 

                //SOAP calling webservice

                androidHttpTransport.call(SOAP_ACTION, envelope);

                 

                //Got Webservice response

                String result = envelope.getResponse().toString();

                return result;

                 

            } catch (Exception e) {

                // TODO: handle exception

                return e.toString();

            }

        } catch (Exception e) {

            // TODO: handle exception

            return e.toString();

        }

    }

     

    /************************************/

}

File : AndroidMainifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.androidexample.dotnetwebservice"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="8" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.androidexample.dotnetwebservice.DotNetWebService"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

</manifest>

.NET Webservice Details :

Accessing a live web service ConvertWeight from http://www.webserviceX.NET/ which convert weight from one unit to another.

   1. Webservice Namespace : http://www.webserviceX.NET/
   2. Webservice URL : http://www.webservicex.net/ConvertWeight.asmx
   3. Method Name : ConvertWeight