I am a starting bud to develop project in android . I try to get .NET Web Service from android using KSOAP . But when i recieve value from the webservice i get output null°F as output. Please find the fault in my program.
package com.example.webservice;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class WebService extends Activity {
private final String NAMESPACE = "http://tempuri.org/";
private final String URL = "http://www.w3schools.com/webservices/tempconvert.asmx?wsdl";
private final String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
private final String METHOD_NAME = "CelsiusToFahrenheit";
Button b;
TextView tv;
EditText et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web_service);
et=(EditText)findViewById(R.id.editText1);
tv=(TextView)findViewById(R.id.Result);
b=(Button)findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String result=getFarenheit(et.getText().toString());
tv.setText(result+"°F");
}
});
}
public String getFarenheit(String celsius){
SoapObject request= new SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo celsuiusPI= new PropertyInfo();
celsuiusPI.setName("Celsius");
celsuiusPI.setValue(celsius);
celsuiusPI.setType(double.class);
request.addProperty(celsuiusPI);
SoapSerializationEnvelope envelope=new SoapSerializationEnvelope (SoapEnvelope.VER11);
envelope.dotNet=true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport=new HttpTransportSE(URL);
try{
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive response=(SoapPrimitive)envelope.getResponse();
Log.i("WebService output", response.toString());
return response.toString();
}
catch(Exception e){
e.printStackTrace();
}
return null;
}
}
Input and Output Image
LOGCAT :
11-15 15:31:42.215: W/System.err(1058): android.os.NetworkOnMainThreadException
11-15 15:31:42.215: W/System.err(1058): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
11-15 15:31:42.215: W/System.err(1058): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
11-15 15:31:42.215: W/System.err(1058): at libcore.io.IoBridge.connectErrno(IoBridge.java:144)
11-15 15:31:42.225: W/System.err(1058): at libcore.io.IoBridge.connect(IoBridge.java:112)
11-15 15:31:42.225: W/System.err(1058): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
11-15 15:31:42.225: W/System.err(1058): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
11-15 15:31:42.225: W/System.err(1058): at java.net.Socket.connect(Socket.java:842)
11-15 15:31:42.235: W/System.err(1058): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:76)
11-15 15:31:42.235: W/System.err(1058): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:341)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpConnection.connect(HttpConnection.java:117)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpEngine.connect(HttpEngine.java:310)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289)
11-15 15:31:42.246: W/System.err(1058): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239)
11-15 15:31:42.255: W/System.err(1058): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)
11-15 15:31:42.265: W/System.err(1058): at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:188)
11-15 15:31:42.265: W/System.err(1058): at org.ksoap2.transport.ServiceConnectionSE.openOutputStream(ServiceConnectionSE.java:120)
11-15 15:31:42.265: W/System.err(1058): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:176)
11-15 15:31:42.265: W/System.err(1058): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:114)
11-15 15:31:42.275: W/System.err(1058): at com.example.webservice.WebService.getFarenheit(WebService.java:58)
11-15 15:31:42.275: W/System.err(1058): at com.example.webservice.WebService$1.onClick(WebService.java:41)
11-15 15:31:42.275: W/System.err(1058): at android.view.View.performClick(View.java:4084)
11-15 15:31:42.285: W/System.err(1058): at android.view.View$PerformClick.run(View.java:16966)
11-15 15:31:42.285: W/System.err(1058): at android.os.Handler.handleCallback(Handler.java:615)
11-15 15:31:42.285: W/System.err(1058): at android.os.Handler.dispatchMessage(Handler.java:92)
11-15 15:31:42.285: W/System.err(1058): at android.os.Looper.loop(Looper.java:137)
11-15 15:31:42.305: W/System.err(1058): at android.app.ActivityThread.main(ActivityThread.java:4745)
11-15 15:31:42.305: W/System.err(1058): at java.lang.reflect.Method.invokeNative(Native Method)
11-15 15:31:42.305: W/System.err(1058): at java.lang.reflect.Method.invoke(Method.java:511)
11-15 15:31:42.315: W/System.err(1058): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-15 15:31:42.315: W/System.err(1058): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
NetworkOnMainThread Exception occurs when we try to hit network services from main thread
to avoid this You have to call web services in sub thread,Handler or in asyncTask, Your problem will solved