An sample application on calling the webservices from android, which is returnig the error, "Unfortunately,MyTest has stopped". -


i have code, makes call web service provided www,tempuri.org. while trying run application, application stopping unexpectedly , showing message - "unfortunately, mytest has stopped".. here java file -

mainactivity.java :-

package com.example.mytest;   import org.ksoap2.soapenvelope; 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.view.menu; import android.widget.textview;  public class mainactivity extends activity {     public static final string soap_action = "http://tempuri.org/celciustofarenheit";     public static final string method_name = "celciustofarenheit";     public static final string namespace= "http://tempuri.org/";     public static final string url = "http://www.w3schools.com/webservices/tempconvert.asmx";     textview tv;     soapenvelope se;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         tv= (textview) findviewbyid(r.id.textview01);          soapobject request=new soapobject(namespace,method_name);         request.addproperty("celcius","32");         soapserializationenvelope sse = new soapserializationenvelope (se.ver11);         sse.dotnet=true;         sse.setoutputsoapobject(request);         httptransportse abt = new httptransportse(url);         try         {             abt.call(soap_action,se);               soapobject resultstring=(soapobject)sse.getresponse();                  string resultdata=resultstring.getproperty(0).tostring();              tv.settext("status :"+resultstring);         }         catch(exception e)         {             e.printstacktrace();         }          }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }  } 

activity_main.xml :-

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".mainactivity" >      <textview         android:id="@+id/textview01"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/hello_world" />  </relativelayout> 

the logcat follows -

08-10 01:35:10.421: e/androidruntime(1077): fatal exception: main 08-10 01:35:10.421: e/androidruntime(1077): java.lang.noclassdeffounderror: org.ksoap2.serialization.soapobject 08-10 01:35:10.421: e/androidruntime(1077):     @ com.example.mytest.mainactivity.oncreate(mainactivity.java:30) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activity.performcreate(activity.java:5133) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1087) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activitythread.performlaunchactivity(activitythread.java:2175) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activitythread.handlelaunchactivity(activitythread.java:2261) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activitythread.access$600(activitythread.java:141) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activitythread$h.handlemessage(activitythread.java:1256) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.os.handler.dispatchmessage(handler.java:99) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.os.looper.loop(looper.java:137) 08-10 01:35:10.421: e/androidruntime(1077):     @ android.app.activitythread.main(activitythread.java:5103) 08-10 01:35:10.421: e/androidruntime(1077):     @ java.lang.reflect.method.invokenative(native method) 08-10 01:35:10.421: e/androidruntime(1077):     @ java.lang.reflect.method.invoke(method.java:525) 08-10 01:35:10.421: e/androidruntime(1077):     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:737) 08-10 01:35:10.421: e/androidruntime(1077):     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:553) 08-10 01:35:10.421: e/androidruntime(1077):     @ dalvik.system.nativestart.main(native method) 

i new develop web services android. can please suggest me, this?

use this:

xml:

      <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"       xmlns:tools="http://schemas.android.com/tools"       android:layout_width="match_parent"        android:layout_height="match_parent" >  <button     android:id="@+id/web_service"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentleft="true"     android:layout_alignparenttop="true"     android:layout_marginleft="112dp"     android:layout_margintop="146dp"     android:text="web service" />  <textview     android:id="@+id/fetch"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerhorizontal="true"     android:layout_centervertical="true"     android:text="textview" />    </relativelayout> 

activity:

  public class mainactivity extends activity {  button web_service; textview fetch_service;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      fetch_service = (textview) findviewbyid(r.id.fetch);     web_service = (button) findviewbyid(r.id.web_service);     web_service.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             // todo auto-generated method stub             myasynctask mat = new myasynctask();             mat.execute();         }     }); }  class myasynctask extends asynctask<string, void, string> {      string str;     private static final string soap_action = "http://tempuri.org/celsiustofahrenheit";     private static final string method_name = "celsiustofahrenheit";     private static final string namespace = "http://tempuri.org/";     private static final string url = "http://www.w3schools.com/webservices/tempconvert.asmx";      @override     protected string doinbackground(string... params) {         soapobject request = new soapobject(namespace, method_name);         request.addproperty("celsius", "32");          soapserializationenvelope envelope = new soapserializationenvelope(                 soapenvelope.ver11);         envelope.dotnet = true;         envelope.setoutputsoapobject(request);          httptransportse ht = new httptransportse(url);          try {             ht.call(soap_action, envelope);             final soapprimitive response = (soapprimitive) envelope                     .getresponse();             str = response.tostring();          } catch (exception e) {             e.printstacktrace();          }         log.d("webrespone", str);         return str;     }      @override     public void onpostexecute(string result) {         // todo auto-generated method stub         toast.maketext(mainactivity.this, result, toast.length_long).show();         fetch_service.settext(result);         super.onpostexecute(result);     }      @override     protected void onpreexecute() {         // todo auto-generated method stub         super.onpreexecute();     }  }     } 

manifest: add following thins in manifest

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

output: enter image description here

hope you.


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