Передача значения edittext от android к веб-службам

Question

Я хочу передать значение текстового значения из android в веб-службы, но я не могу этого делать каждый раз, когда он возвращает нулевое значение. Это мои простые веб-сервисы.

package org.me.mongodb; 

import javax.jws.WebService; 
import javax.jws.WebMethod; 
import javax.jws.WebParam; 
import javax.ejb.Stateless; 

@WebService(serviceName = "Simple") 
@Stateless() 

public class Simple { 

public String testMyProps(@WebParam(name = "name")String fname){ 
    return "First Name : "+fname; 
} 
} 

and android code;

package com.prgguru.android; 

import android.os.AsyncTask; 
import android.os.Bundle; 
import android.app.Activity; 
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 com.example.webserviceactivity.R; 

import android.util.Log; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

public class MainActivity extends Activity { 
    private static final String SOAP_ACTION = ""; 
    private static final String METHOD_NAME = "testMyProps"; 
    private static final String NAMESPACE = "http://mongodb.me.org/"; 
    private static final String URL = "http://10.0.2.2:8080/Simple/Simple?WSDL"; 
    private String TAG = "PGGURU"; 
    private static String barge=""; 
    private static String info; 
    Button b; 
    TextView tv; 
    EditText et; 

    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     et = (EditText) findViewById(R.id.editText1); 

     tv = (TextView) findViewById(R.id.tv_result); 
     //Button to trigger web service invocation 
     b = (Button) findViewById(R.id.button1); 
     //Button Click Listener 
     b.setOnClickListener(new OnClickListener() { 
      public void onClick(View v) { 
       //Check if barge text control is not empty 
       if (et.getText().length() != 0 && et.getText().toString() != "") { 
        //Get the text control value 
        barge = et.getText().toString(); 
        //Create instance for AsyncCallWS 
        AsyncCallWS task = new AsyncCallWS(); 
        //Call execute 
        task.execute(); 

       //If text control is empty 
       } else { 
        tv.setText("Please enter Barge Name"); 
       } 
      } 
     }); 
    } 

    public void testMyProps(String fname) { 

     //Create request 
     SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 
     //Property which holds input parameters 
     PropertyInfo getinfo = new PropertyInfo(); 
     //Set Name 
     getinfo.setName("arg0"); 
     //Set Value 
     getinfo.setValue(fname); 
     //Set dataType 
     getinfo.setType(String.class); 
     //Add the property to request object 
     request.addProperty(getinfo); 
     //Create envelope 
     SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
       SoapEnvelope.VER11); 
     envelope.dotNet = true; 
     //Set output SOAP object 
     envelope.setOutputSoapObject(request); 
     //Create HTTP call object 
     HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); 

     try { 
      //Invole web service 
      androidHttpTransport.call(SOAP_ACTION, envelope); 
      //Get the response 
      SoapPrimitive response = (SoapPrimitive) envelope.getResponse(); 
      //Assign it to info static variable 
      info = response.toString(); 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

    private class AsyncCallWS extends AsyncTask<String, Void, Void> { 
     @Override 
     protected Void doInBackground(String... params) { 
      Log.i(TAG, "doInBackground"); 
      testMyProps(barge); 
      return null; 
     } 

     @Override 
     protected void onPostExecute(Void result) { 
      Log.i(TAG, "onPostExecute"); 
      tv.setText(info); 
     } 

     @Override 
     protected void onPreExecute() { 
      Log.i(TAG, "onPreExecute"); 
      tv.setText("Getting..."); 
     } 

     @Override 
     protected void onProgressUpdate(Void... values) { 
      Log.i(TAG, "onProgressUpdate"); 
     } 

    } 

} 

Он возвращает имя null;

Пожалуйста, помогите, я думаю, что я не могу передать значение веб-сервисам. Большое спасибо.

И получать эту ошибку,

12-11 09:45:53.291: E/AndroidRuntime(1920): FATAL EXCEPTION: main 
12-11 09:45:53.291: E/AndroidRuntime(1920): java.lang.IllegalStateException: Cannot execute task: the task is already running. 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:575) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.os.AsyncTask.execute(AsyncTask.java:534) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at com.prgguru.android.MainActivity$1.onClick(MainActivity.java:57) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.view.View.performClick(View.java:4240) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.view.View$PerformClick.run(View.java:17721) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.os.Handler.handleCallback(Handler.java:730) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.os.Handler.dispatchMessage(Handler.java:92) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.os.Looper.loop(Looper.java:137) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at android.app.ActivityThread.main(ActivityThread.java:5103) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at java.lang.reflect.Method.invokeNative(Native Method) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at java.lang.reflect.Method.invoke(Method.java:525) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
12-11 09:45:53.291: E/AndroidRuntime(1920):  at dalvik.system.NativeStart.main(Native Method) 
12-11 09:45:55.031: I/Process(1920): Sending signal. PID: 1920 SIG: 9 

Answer 1

Вы настраиваете barge со значением EditText, но вы не посылаете его в AsyncTask

barge = et.getText().toString(); 
//Create instance for AsyncCallWS 
AsyncCallWS task = new AsyncCallWS(); 

if(barge != null && !barge.equals("")) { // if barge is not an empty string and not null 
    task.execute(barge); 
    // return null; i don't think u need this return statement 
} 

И тогда в вашем AsyncTask классе

@Override 
protected Void doInBackground(String... params) { 
    Log.i(TAG, "doInBackground: barge is " + params[0]); 
    testMyProps(params[0]); 
} 

Я думаю, когда вы создаете экземпляр AsyncCallWS, вам необходимо отправить barge в качестве params.