Android：使用KSOAP解决Web服务问题 [英] Android: Problem Consuming Web Service with KSOAP

问题描述

我正在尝试使用这个网络服务：http：//www.ezzylearning.com/services/CountryInformationService.asmx with KSoap。



当我打电话没有参数的web方法（例如：GetContinents）可以正常工作。当我尝试使用带参数的一个时，它总是返回空数据。



这是我的Activity类（用于测试目的）：

公共类MyTestActivity扩展Activity 
 {
 private static final String NAMESPACE =http://www.ezzylearning.com/services/; 
 private static final String URL =http://www.ezzylearning.com/services/CountryInformationService.asmx?WSDL; 
 private static final String ACTION_GET_COUNTRIES_BY_CONTINENT =http://www.ezzylearning.com/services/CountryInformationService.asmx/GetCountriesByContinent; 
 private static final String METHOD_GET_COUNTRIES_BY_CONTINENT =GetCountriesByContinent; 
 
 / **首次创建活动时调用。 * / 
 @Override 
 public void onCreate（Bundle savedInstanceState）
 {
 super.onCreate（savedInstanceState）; 
 setContentView（R.layout.fourth）; 
 String property =continentCode; 
字符串值=AS; 
 new GetCountriesByContinentTask（）。execute（URL，NAMESPACE，ACTION_GET_COUNTRIES_BY_CONTINENT，METHOD_GET_COUNTRIES_BY_CONTINENT，property，value）; 
} 
 
 //使用AsyncTask的实现按大陆分类。 
私有类GetCountriesByContinentTask扩展AsyncTask< String，Void，String> 
 {
 
 @Override 
 protected void onPreExecute（）
 {
} 
 
 @Override 
 protected String doInBackground（String ... params）
 {
 String result =Testing ...; 
 
 String url = params [0]; 
 String namespace = params [1]; 
 String action = params [2]; 
 String method = params [3]; 
 String property = params [4]; 
 String value = params [5]; 
 List< PropertyInfo> propertyList = new ArrayList< PropertyInfo>（）; 
 
 //使用此方法添加参数
 PropertyInfo pi = new PropertyInfo（）; 
 pi.setName（property）; 
 pi.setValue（value）; 
 pi.setType（String.class）; 
 propertyList.add（pi）; 
 
尝试
 {
 MySoapHandler soapHandler = new MySoapHandler（）; 
 SoapObject soapRresult = soapHandler.soapCall（url，namespace，action，method，propertyList）; 
 if（soapRresult！= null）
 {
 System.out.println（RESULT：+ soapRresult.toString（））; //数据集总是空的
} 
} 
 catch（exception ex）
 {
 System.out.println（Exception：+ ex.getMessage （））; 
 ex.printStackTrace（）; 
} 
 
返回结果; 
} 
 
 @Override 
 protected void onPostExecute（String result）
 {
} 
} 
} 

我的拨打网络服务的课程：

 public class MySoapHandler 
 {
 public SoapObject soapCall（String url，
 String namespace，
 String action，
 String method，
 List< PropertyInfo> propertyInfoList）
抛出IOException，XmlPullParserException 
 {
 //初始化soap请求
 SoapObject request = new SoapObject（namespace，method）; 
 
 //添加参数
 if（propertyInfoList！= null）
 {
 for（PropertyInfo pi：propertyInfoList）
 {
 request。方法addProperty（PI）; 
} 
} 
 
 //声明SOAP请求的版本
 SoapSerializationEnvelope envelope = new SoapSerializationEnvelope（SoapEnvelope.VER11）; 
 envelope.setOutputSoapObject（request）; 
 envelope.dotNet = true; 
 
 //调用webservice 
 HttpTransportSE transport = new HttpTransportSE（url）; 
 transport.call（action，envelope）; 
 
 //从信封体返回SoapResult。 
 
 return（SoapObject）envelope.bodyIn; 
} 
} 

我知道我做错了什么？



我也尝试将envelope.bodyIn更改为envelope.getResponse（），但数据集仍为空。



谢谢。

解决方案

  package  com.example.ss; 
 
  import  android.app.Activity; 
  import  android.os.Bundle; 
  import  android.os.AsyncTask; 
  import  android.app.ProgressDialog; 
  import  android.widget.TextView; 
  import  android.widget.Toast; 
  import  org.ksoap2.SoapEnvelope; 
  import  org.ksoap2.serialization.SoapObject; 
  import  org.ksoap2.serialization.SoapSerializationEnvelope; 
  import  org.ksoap2.transport.AndroidHttpTransport; 
 
 
  / *   * 
 *由seguro6于6创建/ 14/13。 
 * /  
  public   class  sampletest  extends 活动{
  private   static   final  字符串 SOAP_ACTION =   http://www.ezzylearning.com/services/CountryInformationService.asmx/GetCountriesByContinent; 
  private   static   final  < span class =code-sdkkeyword> String  METHOD_NAME =   GetCountriesByContinent; 
  private   static   final  < span class =code-sdkkeyword> String  NAMESPACE =   http://www.ezzylearning.com /services/CountryInformationService.asmx; 
  private   static   final  < span class =code-sdkkeyword> String  URL =   http://www.ezzylearning.com /services/CountryInformationService.asmx; 
对象响应; 
 TextView displayTextview; 
  public   void  onCreate（Bundle savedInstanceState）{
 超 .onCreate（savedInstanceState）; 
 displayTextview = new TextView（ this ）; 
 setContentView（displayTextview）; 
  new  Dowork（）。execute（）; 
} 
 
  public   class  Dowork  extends  AsyncTask< string，object，object> 
 {
  private   final  ProgressDialog dialog = new ProgressDialog（sampletest。此）; 
  @覆盖 
 受保护  void  onPreExecute（）
 {
  this  .dialogue.setMessage（ 正在检查..）; 
 此 .dialogue.show（）; 
} 
  @覆盖 
  protected   void  onCancelled（对象结果）
 {
  super  .onCancelled（）; 
} 
  @覆盖 
  protected   void  onPostExecute（对象结果）
 {
  if （result！= null）
 {
 
 displayTextview.setText（result.toString（））; 
} 
  else  
 {
 Toast.makeText（getApplicationContext（），result.toString（），Toast.LENGTH_LONG ）。节目（）; 
} 
  if （ this  .dialogue.isShowing（））{
 
  this  .dialogue.dismiss（）; 
} 
} 
  @覆盖 
  protected 对象doInBackground（ String  ... params）
 {
 SoapObject request =  new  SoapObject （NAMESPACE，METHOD_NAME）; 
 request.addProperty（  continentCode，   AF）; 
 SoapSerializationEnvelope envelope =  new  SoapSerializationEnvelope（SoapEnvelope.VER11）; 
 envelope.dotNet = true; 
 envelope.setOutputSoapObject（request）; 
 尝试 
 {
 AndroidHttpTransport aht = new AndroidHttpTransport（URL）; 
 aht.call（SOAP_ACTION，envelope）; 
 request =（SoapObject）envelope.getResponse（）; 
 response = request.toString（）; 
 返回响应; 
} 
  catch （Exception ex）
 {
 ex.printStackTrace（）; 
} 
 返回响应; 
} 
 
} 
} 

查看此链接

消耗-.NET的web服务功能于机器人-usingksoap2 [< a href =http://articlesforprogramming.blogspot.in/2013/06/consume-net-webservice-in-android-using.htmltarget =_ blanktitle =New Window> ^ ]

I'm trying to consume this web service: http://www.ezzylearning.com/services/CountryInformationService.asmx with KSoap.

When I call a web method (example: GetContinents) without parameters it work fine. When I try to use one with parameters it always return empty data.

Here is my Activity class (for testing purposes):

public class MyTestActivity extends Activity
{
      private static final String NAMESPACE = "http://www.ezzylearning.com/services/";
      private static final String URL = "http://www.ezzylearning.com/services/CountryInformationService.asmx?WSDL";
      private static final String ACTION_GET_COUNTRIES_BY_CONTINENT = "http://www.ezzylearning.com/services/CountryInformationService.asmx/GetCountriesByContinent";
      private static final String METHOD_GET_COUNTRIES_BY_CONTINENT = "GetCountriesByContinent";    

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
     {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.fourth);
    String property = "continentCode";
    String value = "AS";
    new GetCountriesByContinentTask().execute(URL, NAMESPACE, ACTION_GET_COUNTRIES_BY_CONTINENT, METHOD_GET_COUNTRIES_BY_CONTINENT, property, value);
   }

// Implementation of AsyncTask used get the countries by continent.
private class GetCountriesByContinentTask extends AsyncTask<String, Void, String>
{

    @Override
    protected void onPreExecute()
    {
    }

    @Override
    protected String doInBackground(String... params)
    {
        String result = "Testing...";

        String url = params[0];
        String namespace = params[1];
        String action = params[2];
        String method = params[3];
        String property = params[4];
        String value = params[5];
        List<PropertyInfo> propertyList = new ArrayList<PropertyInfo>();

        //Use this to add parameters
        PropertyInfo pi = new PropertyInfo();
        pi.setName(property);
        pi.setValue(value);
        pi.setType(String.class);
        propertyList.add(pi);

        try
        {   
            MySoapHandler soapHandler = new MySoapHandler();
            SoapObject soapRresult = soapHandler.soapCall(url, namespace, action, method, propertyList);
            if (soapRresult != null)
            {
                System.out.println("RESULT: " + soapRresult.toString());  // THE DATA SET IS ALWAYS EMPTY     
            }
        } 
        catch (Exception ex) 
        {
            System.out.println("Exception: " + ex.getMessage());       
            ex.printStackTrace();
        }       

        return result;
    }

    @Override
    protected void onPostExecute(String result) 
        {
        }
    }
}

My Class for calling the web service:

public class MySoapHandler
{ 
        public SoapObject soapCall(String url, 
                               String namespace, 
                               String action, 
                               String method, 
                               List<PropertyInfo> propertyInfoList)
    throws IOException, XmlPullParserException
    {
        //Initialize soap request
    SoapObject request = new SoapObject(namespace, method);

    //Add parameters
    if(propertyInfoList != null)
    {
        for(PropertyInfo pi: propertyInfoList)
        {
            request.addProperty(pi);
        }
    }

    //Declare the version of the SOAP request
    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.setOutputSoapObject(request);
    envelope.dotNet = true;

    //Call the webservice
    HttpTransportSE transport = new HttpTransportSE(url);
    transport.call(action, envelope);

    //Return the SoapResult from the envelope body.

return (SoapObject)envelope.bodyIn;
    }
}

Any idea of what I'm doing wrong?

I also tried to change envelope.bodyIn to envelope.getResponse(), but the dataset is still empty.

Thank you.

解决方案

package com.example.ss;

import android.app.Activity;
import android.os.Bundle;
import android.os.AsyncTask;
import android.app.ProgressDialog;
import android.widget.TextView;
import android.widget.Toast;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.AndroidHttpTransport;


/**
 * Created by seguro6 on 6/14/13.
 */
public class sampletest extends Activity {
    private static final String SOAP_ACTION = "http://www.ezzylearning.com/services/CountryInformationService.asmx/GetCountriesByContinent";
    private static final String METHOD_NAME = "GetCountriesByContinent";
    private static final String NAMESPACE = "http://www.ezzylearning.com/services/CountryInformationService.asmx";
    private static final String URL = "http://www.ezzylearning.com/services/CountryInformationService.asmx";
    Object response;
    TextView displayTextview;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        displayTextview=new TextView(this);
        setContentView(displayTextview);
        new Dowork().execute();
    }

    public class Dowork extends AsyncTask<string,object,object>
    {
        private final ProgressDialog dialogue =new ProgressDialog(sampletest.this);
        @Override
        protected void onPreExecute()
        {
            this.dialogue.setMessage("Checking..");
            this.dialogue.show();
        }
        @Override
        protected void onCancelled(Object result)
        {
            super.onCancelled();
        }
        @Override
        protected void onPostExecute(Object result)
        {
            if(result!=null)
            {

                displayTextview.setText(result.toString());
            }
            else
            {
                Toast.makeText(getApplicationContext(),result.toString(),Toast.LENGTH_LONG).show();
            }
            if (this.dialogue.isShowing()) {

                this.dialogue.dismiss();
            }
        }
        @Override
        protected Object doInBackground(String ...params)
        {
            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
            request.addProperty("continentCode","AF");
            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
            envelope.dotNet=true;
            envelope.setOutputSoapObject(request);
            try
            {
                AndroidHttpTransport aht=new AndroidHttpTransport(URL);
                aht.call(SOAP_ACTION,envelope);
                request=(SoapObject)envelope.getResponse();
                response=request.toString();
                return response;
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
            }
            return response;
        }

    }
}

check this link
consume-.net-webservice-in-android-usingksoap2[^]

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