Using KSoap2 with VB.Net webservice

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Using KSoap2 with VB.Net webservice

Postby MaximG » Wed Apr 15, 2009 4:07 am

Hello All,
I am having some serious difficulty using KSoap2 to connect to a VB.Net webservice and am hoping I could get some help from someone who is smarter than me. I have been trying to work this out for 2 weeks with no luck.

So this is my problem. Using KSoap2 on the Android platform I have successfully queried a super simple web service that I created using vb.net (It can be found at http://gershwinsolutions.ftpaccess.cc/2 ... rvice.asmx)
I receive a XML result which looks quite reasonable to me.

Syntax: [ Download ] [ Hide ]
Using xml Syntax Highlighting
  1. ReturnCustomerObject2Response{
  2.  
  3. ReturnCustomerObject2Result=anyType{CustomerID=1; FirstName=This is a test; };
  4.  
  5. }
Parsed in 0.000 seconds, using GeSHi 1.0.8.4


However at the point where I try to cast the object I am returning from the webservice into a KvmSerializable object (as required by KSoap2) I receive a java.lang.ClassCastException.


This is my object (I have excluded imports for brevity):

Syntax: [ Download ] [ Hide ]
Using java Syntax Highlighting
  1. public abstract class BaseObject implements KvmSerializable {
  2.  
  3.    
  4.  
  5.     public BaseObject() {
  6.  
  7.         super();
  8.  
  9.     }
  10.  
  11. }
  12.  
  13. public class Customer extends BaseObject {
  14.  
  15.        
  16.  
  17.         private int m_CustomerID;
  18.  
  19.         private String m_FirstName;
  20.  
  21.         public static Class<? extends Customer> Customer_CLASS = new Customer().getClass();
  22.  
  23.        
  24.  
  25.        
  26.  
  27.        
  28.  
  29.         public void setCustomerID(int CustomerID) {
  30.  
  31.                 m_CustomerID = CustomerID;
  32.  
  33.         }
  34.  
  35.         public int getCustomerID() {
  36.  
  37.                 return m_CustomerID;
  38.  
  39.         }
  40.  
  41.         public void setFirstName(String FirstName) {
  42.  
  43.                 m_FirstName = FirstName;
  44.  
  45.         }
  46.  
  47.         public String getFirstName() {
  48.  
  49.                 return m_FirstName;
  50.  
  51.         }
  52.  
  53.        
  54.  
  55.        
  56.  
  57.     public void getPropertyInfo(int index, Hashtable properties, PropertyInfo info) {
  58.  
  59.         switch (index)
  60.  
  61.         {
  62.  
  63.         case 0:
  64.  
  65.             info.type = PropertyInfo.INTEGER_CLASS;
  66.  
  67.             info.name = "CustomerID";
  68.  
  69.             break;
  70.  
  71.         case 1:
  72.  
  73.             info.type = PropertyInfo.STRING_CLASS;
  74.  
  75.             info.name = "FirstName";
  76.  
  77.             break;
  78.  
  79.         default:
  80.  
  81.             break;
  82.  
  83.        
  84.  
  85.         }
  86.  
  87.     }
  88.  
  89.  
  90.  
  91.        
  92.  
  93.         @Override
  94.  
  95.         public Object getProperty(int index)
  96.  
  97.     {
  98.  
  99.                 switch (index) {
  100.  
  101.         case 0:
  102.  
  103.             return m_CustomerID;
  104.  
  105.         case 1:
  106.  
  107.             return m_FirstName;
  108.  
  109.         default:
  110.  
  111.             return null;
  112.  
  113.         }
  114.  
  115.     }
  116.  
  117.        
  118.  
  119.         @Override
  120.  
  121.     public int getPropertyCount() {
  122.  
  123.         return 2;
  124.  
  125.     }
  126.  
  127.  
  128.  
  129.  
  130.  
  131.         @Override
  132.  
  133.         public void setProperty(int index, Object value) {
  134.  
  135.  
  136.  
  137.                 switch (index) {
  138.  
  139.         case 0:
  140.  
  141.             m_CustomerID = Integer.parseInt(value.toString());
  142.  
  143.             break;
  144.  
  145.         case 1:
  146.  
  147.                  m_FirstName = value.toString();
  148.  
  149.              break;
  150.  
  151.         default:
  152.  
  153.             break;
  154.  
  155.         }
  156.  
  157.  
  158.  
  159.         }
  160.  
  161. }
Parsed in 0.037 seconds, using GeSHi 1.0.8.4


This is my request:
Syntax: [ Download ] [ Hide ]
Using java Syntax Highlighting
  1.  
  2. private static final String SOAP_ACTION = "http://tempuri.org/ReturnCustomerObject2";
  3.  
  4. private static final String METHOD_NAME = "ReturnCustomerObject2";
  5.  
  6. private static final String NAMESPACE = "http://tempuri.org/";
  7.  
  8. private static final String URL = "http://10.0.2.2/2DoWebService.asmx";
  9.  
  10.  
  11.  
  12. public Boolean ExecuteSoapAction() {
  13.  
  14.         SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
  15.  
  16.         SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
  17.  
  18.         envelope.encodingStyle = SoapSerializationEnvelope.XSD;
  19.  
  20.         envelope.setOutputSoapObject(request);         
  21.  
  22.         envelope.addMapping("http://tempuri.org/ReturnCustomerObject2", "ReturnCustomerObject2", new Customer().getClass());
  23.  
  24.  
  25.  
  26.         envelope.dotNet = true;
  27.  
  28.        
  29.  
  30.         Customer Cust = new Customer();        
  31.  
  32.        
  33.  
  34.         HttpTransportSE HttpTransport = new HttpTransportSE(URL);
  35.  
  36.         HttpTransport.debug = true;
  37.  
  38.         try {
  39.  
  40.                 HttpTransport.call(SOAP_ACTION, envelope);
  41.  
  42. //HERE IS WHERE IT ALL GOES HORRIBLY WRONG!!
  43.  
  44.                 Cust = (Customer) envelope.getResponse();
  45.  
  46.         }
  47.  
  48.         catch (Exception ex) {
  49.  
  50.                 ex.printStackTrace();
  51.  
  52.         }
  53.  
  54.         return false;
  55.  
  56.     }
Parsed in 0.035 seconds, using GeSHi 1.0.8.4
MaximG
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Postby MaximG » Thu Apr 16, 2009 3:30 pm

Anyone have any ideas?
MaximG
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Posts: 3
Joined: Wed Apr 15, 2009 3:55 am

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