How to call a NET Webservice from Android using KSOAP2

Question

I have a problem while calling a webservice  I have a  NET web service on the server  and I am using KSOAP2  ksoap2-j2se-full-2 1 2  in Android  While running the program I got an runtime exception like  org ksoap2 serialization SoapPrimitive   What should I do   Here is my code   package projects ksoap2sample   import org ksoap2 SoapEnvelope  import org ksoap2 serialization SoapObject  import org ksoap2 serialization SoapSerializationEnvelope  import org ksoap2 transport HttpTransportSE   import android app    import android os    import android widget TextView   public class ksoap2sample extends Activity           Called when the activity is first created         private static final String SOAP ACTION    http   tempuri org HelloWorld       private static final String METHOD NAME    HelloWorld       private static final String NAMESPACE    http   tempuri org        private static final String URL    http   192 168 1 19 TestWeb WebService asmx       TextView tv       Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main           tv  TextView findViewById R id text1            try               SoapObject request   new SoapObject NAMESPACE  METHOD NAME                  request addProperty  prop1    myprop                 SoapSerializationEnvelope envelope   new SoapSerializationEnvelope SoapEnvelope VER11               envelope dotNet true              envelope setOutputSoapObject request                HttpTransportSE androidHttpTransport   new HttpTransportSE URL                androidHttpTransport call SOAP ACTION  envelope                Object result    Object envelope getResponse                 String   results    String     result              tv setText     results 0                      catch  Exception e                tv setText e getMessage

User · Answer

You can Use below code to call the web service and get response .Make sure that your Web Service return the response in Data Table Format..This code help you if you using data from SQL Server database .If you you using MYSQL you need to change one thing just replace word NewDataSet from sentence obj2=(SoapObject) obj1.getProperty("NewDataSet"); by DocumentElement

private static final String NAMESPACE = "http://tempuri.org/";
private static final String URL = "http://localhost/Web_Service.asmx?"; // you can use   IP address instead of localhost
private static final String METHOD_NAME = "Function_Name";
private static final String SOAP_ACTION = NAMESPACE + METHOD_NAME;

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("parm_name", prm_value); // Parameter for Method
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

try {
    androidHttpTransport.call(SOAP_ACTION, envelope); //call the eb service Method
} catch (Exception e) {
    e.printStackTrace();
} //Next task is to get Response and format that response

SoapObject obj, obj1, obj2, obj3;
obj = (SoapObject) envelope.getResponse();
obj1 = (SoapObject) obj.getProperty("diffgram");
obj2 = (SoapObject) obj1.getProperty("NewDataSet");

for (int i = 0; i < obj2.getPropertyCount(); i++) //the method getPropertyCount() return the number of rows
{
    obj3 = (SoapObject) obj2.getProperty(i);
    obj3.getProperty(0).toString(); //value of column 1
    obj3.getProperty(1).toString(); //value of column 2
    //like that you will get value from each column
}

If you have any problem regarding this you can write me..

User · Answer

It s very simple  You are getting the result into an Object which is a primitive one   Your code     Object result    Object envelope getResponse      Correct code     SoapObject result  SoapObject envelope getResponse       To get the data  String resultData result getProperty 0  toString       0 is the first object of data    I think this should definitely work

User · Answer

Typecast the envelope to SoapPrimitive   SoapPrimitive result    SoapPrimitive envelope getResponse    String strRes   result toString      and it will work

User · Answer

If more than one result is expected  then the getResponse   method will return a Vector containing the various responses   In which case the offending code becomes   Object result   envelope getResponse        treat result as a vector String resultText   null  if  result instanceof Vector        SoapPrimitive element0    SoapPrimitive   Vector  result  elementAt 0       resultText   element0 toString       tv setText resultText     Answer based on the ksoap2-android  mosabua fork

User · Answer

How does your  NET Webservice look like   I had the same effect using ksoap 2 3 from code google com  I followed the tutorial on The Code Project  which is great BTW    And everytime I used      Integer result    Integer envelope getResponse      to get the result of a my webservice  regardless of the type  I tried Object  String  int  I ran into the org ksoap2 serialization SoapPrimitive exception   I found a solution  workaround   The first thing I had to do was to remove the  SoapRpcMethod   attribute from my webservice methods        SoapRpcMethod    WebMethod      public Object GetInteger1 int i                   android device will throw exception         return 0              WebMethod      public Object GetInteger2 int i                   android device will get the value         return 0          Then I changed my Android code to       SoapPrimitive result    SoapPrimitive envelope getResponse      However  I get a SoapPrimitive object  which has a  value  filed that is private  Luckily the value is passed through the toString   method  so I use Integer parseInt result toString    to get my value  which is enough for me  because I don t have any complex types that I need to get from my Web service   Here is the full source   private static final String SOAP ACTION    http   tempuri org GetInteger2   private static final String METHOD NAME    GetInteger2   private static final String NAMESPACE    http   tempuri org    private static final String URL    http   10 0 2 2 4711 Service1 asmx    public int GetInteger2   throws IOException  XmlPullParserException       SoapObject request   new SoapObject NAMESPACE  METHOD NAME        PropertyInfo pi   new PropertyInfo        pi setName  i        pi setValue 123       request addProperty pi        SoapSerializationEnvelope envelope           new SoapSerializationEnvelope SoapEnvelope VER11       envelope dotNet   true      envelope setOutputSoapObject request        AndroidHttpTransport androidHttpTransport   new AndroidHttpTransport URL       androidHttpTransport call SOAP ACTION  envelope        SoapPrimitive result    SoapPrimitive envelope getResponse        return Integer parseInt result toString

User · Answer

I think you can t call   androidHttpTransport call SOAP ACTION  envelope     on main Thread     Network operations should be done on different Thread   Create another Thread or AsyncTask to call the method

[android] How to call a .NET Webservice from Android using KSOAP2?

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