Nothing happening when calling a .NET web service in Android

Question

I have developed a web service in .net, here it is

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class DataManipulationService : System.Web.Services.WebService
{
    [WebMethod]
    public void InsertData()
    {
        SQLConnectionManager conn = new SQLConnectionManager();

        string qry = "INSERT INTO TEST_TABLE(Id, Name) VALUES(3, 'Ibbi')";

        SQLOperationManager op = new SQLOperationManager(qry);
        int rowsAffected = op.ExecuteQuery();
    }
}

and I'm trying to call this web method from android, like this

public class WebDataManipulator {

private final String NAMESPACE = "http://tempuri.org/";
private final String URL = "http://localhost/DataManipulationService.asmx?WSDL";
private final String METHOD = "InsertData";
private final String SOAP_ACTION = "http://localhost/DataManipulationService.asmx?op=InsertData";

public void insertData() {
    SoapObject request = new SoapObject(NAMESPACE, METHOD);

    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.dotNet = true;
    envelope.setOutputSoapObject(request);

    System.out.println(request);
    HttpTransportSE androidHttp = new HttpTransportSE(URL);


    try {
        androidHttp.call(SOAP_ACTION, envelope);
    } catch(Exception ex) {
        ex.printStackTrace();
    }
}

}

I have tested my web service in .net and its working fine but when I run this on android NOTHING HAPPENS.. neither I'm getting any exception nor its functioning. Why? This is my logcat

08-11 11:09:12.269: I/AndroidRuntime(325): NOTE: attach of thread 'Binder Thread #3' failed
08-11 11:09:13.179: I/System.out(333): InsertData{}
08-11 11:09:13.229: W/System.err(333): java.net.SocketException: Permission denied
08-11 11:09:13.239: W/System.err(333):  at org.apache.harmony.luni.platform.OSNetworkSystem.socket(Native Method)
08-11 11:09:13.239: W/System.err(333):  at dalvik.system.BlockGuard$WrappedNetworkSystem.socket(BlockGuard.java:335)
08-11 11:09:13.239: W/System.err(333):  at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:216)
08-11 11:09:13.249: W/System.err(333):  at java.net.Socket.checkOpenAndCreate(Socket.java:802)
08-11 11:09:13.249: W/System.err(333):  at java.net.Socket.connect(Socket.java:948)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:48)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection$Address.connect(HttpConnection.java:322)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:89)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHttpConnection(HttpURLConnectionImpl.java:285)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:205)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:76)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:146)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)
08-11 11:09:13.249: W/System.err(333):  at com.automated.research.WebDataManipulator.insertData(WebDataManipulator.java:27)
08-11 11:09:13.259: W/System.err(333):  at com.automated.research.DataSender$1.run(DataSender.java:47)
08-11 11:09:13.259: I/System.out(333): connected

and this is how I write the client code

if(isNetworkAvailable()) {
   WebDataManipulator webDM = new WebDataManipulator();
   webDM.insertData();
   System.out.println("connected");
}

Answer 1

I would answer my own question here, I am writing the steps I did to get it working.

1. Make sure you hosted the webservice in IIS correctly. You can refer this link.

   After hosting the service if you see the service is not accessible on your machine then follow step 2.

2. You will need to do two things here,

   1. Make asp.net appear in IIS manager. Refer the link here.
   2. Modify the web.config file and add httpGet and httpPost. Example here

3. Allow the service to call its webmethods from the remote machine. Refer the link here.

4. Make sure the Firewall is not blocking the access to your computer. You can define new rules or perhaps disable the firewall to see that works.

By following the steps above, I can now call my service on the android device.

Answer 2

the webserviceurl start with "localhost" which is from android point of view the android device. replace localhost with an ip-adress that the androiddevice can see (i.e. is callable from the android web-browser)