如何从Android移动应用程序调用本地web服务

从过去几天开始，我一直在编写一个Android代码来调用本地web服务。我正在使用Android的ksoap库调用在.NET中创建的SOAP web服务。然而，当我从我的应用程序调用web服务时得到的响应碰到了一个问题块，我觉得我的代码有问题。我试着调试我的Android代码，但仍然无法解决我的问题。 请有人告诉我怎么了，或者其他更简单的方法

以下是我迄今为止已经实现的Android代码：

      package com.demo;
      import java.net.SocketException;
      import org.ksoap2.SoapEnvelope;
      import org.ksoap2.serialization.SoapObject;
      import org.ksoap2.serialization.SoapPrimitive;
      import org.ksoap2.serialization.SoapSerializationEnvelope;
      import org.ksoap2.transport.AndroidHttpTransport;
      import android.app.Activity;
      import android.app.ProgressDialog;
      import android.os.AsyncTask;
      import android.os.Bundle;
      import android.util.Log;
      import android.view.View;
      import android.view.View.OnClickListener;
      import android.widget.Button;
      import android.widget.EditText;

    public class Login extends Activity {
private static final String SOAP_ACTION = "http://tempuri.org/GetLoginDetails";
    private static final String METHOD_NAME = "GetLoginDetails";
    private static final String NAMESPACE = "http://tempuri.org/";
    private static final String URL = "http://10.0.2.2/testlogin/Service1.asmx";

@Override
public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button signin = (Button) findViewById(R.id.regsubmitbtn);

        signin.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {


                        EditText etxt_user = (EditText) findViewById(R.id.usereditlog);
                        user_id = etxt_user.getText().toString();
                        EditText etxt_password = (EditText) findViewById(R.id.pwdeditlog);
                        password = etxt_password.getText().toString();

                        new LoginTask().execute();
                }
        });
}

 String user_id;
String password;
String auth=null;
private class LoginTask extends AsyncTask<Void, Void, Void> {

    private final ProgressDialog dialog = new ProgressDialog(
                    Login.this);

    protected void onPreExecute() {
            this.dialog.setMessage("Logging in...");
            this.dialog.show();
    }

    protected Void doInBackground(final Void... unused) {

             auth = doLogin("lalit", "lalit");
            return null; // don't interact with the ui!
    }

    protected void onPostExecute(Void result) {
        if (this.dialog.isShowing()) {
            this.dialog.dismiss();
        }

         }


       private String doLogin(String user_id, String password) {

    SoapPrimitive resultstring = null;
    SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
    request.addProperty("user", user_id);
    request.addProperty("password", password);
    SoapSerializationEnvelope soapenvelope = new SoapSerializationEnvelope(
                    SoapEnvelope.VER11);
    soapenvelope.dotNet = true;                                                      
    soapenvelope.setOutputSoapObject(request);

    AndroidHttpTransport httptransport = new AndroidHttpTransport(URL);
    httptransport.debug = true;

    try {
            httptransport.call(SOAP_ACTION, soapenvelope);
            resultstring = (SoapPrimitive) soapenvelope.getResponse();
            //Log.d("Authenticaion", resultstring+"");
            System.out.println(resultstring);


    }
    catch (SocketException ex) {
        Log.e("Error : " , "Error on soapPrimitiveData() " + ex.getMessage());
        ex.printStackTrace();
    } catch (Exception e) {
        Log.e("Error : " , "Error on soapPrimitiveData() " + e.getMessage());
       e.printStackTrace();
    }
    return resultstring+"";

    }
     }
    }

我的日志：

       10-22 21:49:17.635: DEBUG/dalvikvm(117): GC_EXTERNAL_ALLOC freed 901 objects /         

       10-22 21:49:18.015: WARN/KeyCharacterMap(117): No keyboard for id 0
       10-22 21:49:18.015: WARN/KeyCharacterMap(117): Using default keymap:  /system/usr/keychars/qwerty.kcm.bin
       10-22 21:49:22.275: INFO/ARMAssembler(58): generated s   scanline__00000077:03515104_00000000_00000000 [ 33 ipp] (47 ins) at [0x23df98:0x23e054] in 675711 ns
       10-22 21:49:42.025: INFO/System.out(274): an error occurred.
       10-22 21:49:42.045: WARN/InputManagerService(58): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@44eda178

---

使用kSOAP2可能会很有挑战性。。。我知道。但这是一个很好的图书馆，我已经能够让它工作了。我写了一些关于在Android上使用kSOAP2的文章。我将讨论通过网络传递简单和复杂参数、接收数组以及处理JDBCWebRowset对象

---

网站上还有其他关于如何使用kSOAP2的博客文章。我希望这能有所帮助。

不知何故，我设法解决了我的问题，我回答了这个问题，以便对将来看到这篇文章的人有用

下面是修改后的代码：

             package com.demo;
             import java.net.SocketException;
             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.app.Activity;
             import android.app.ProgressDialog;
             import android.os.AsyncTask;
             import android.os.Bundle;
             import android.util.Log;
             import android.view.View;
             import android.view.View.OnClickListener;
             import android.widget.Button;
             import android.widget.EditText;

     public class Login extends Activity {

  private final String NAMESPACE = "http://tempuri.org/";
  private final String URL = "http://10.0.2.2/testlogin/Service1.asmx";

    String user_id;
    String password;

  @Override
   public void onCreate(Bundle savedInstanceState)
      {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button signin = (Button) findViewById(R.id.regsubmitbtn);
        signin.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {


                        EditText etxt_user = (EditText) findViewById(R.id.usereditlog);
                        user_id = etxt_user.getText().toString();
                        EditText etxt_password = (EditText)  findViewById(R.id.pwdeditlog);
                        password = etxt_password.getText().toString();

                        new LoginTask().execute();

                }
           });   
     }

    private boolean doLogin(String user_id, String password) {   

   boolean result=false;
   final String SOAP_ACTION = "http://tempuri.org/GetLogin";
   final String METHOD_NAME = "GetLogin";     
   SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

   request.addProperty("userid", user_id);
   request.addProperty("password",password);
   SoapSerializationEnvelope envelope = new   SoapSerializationEnvelope(SoapEnvelope.VER11);
   envelope.dotNet = true; // Set this variable to true for
                                                           // compatibility with what seems to be the
                                                           // default encoding for .Net-Services.
   envelope.setOutputSoapObject(request);

   System.out.println(request);

   HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);


   try {
           androidHttpTransport.call(SOAP_ACTION, envelope);
           SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
           Log.i("myApp", response.toString());
           System.out.println("response" +response);

                   if(response.toString().equalsIgnoreCase("success"))
       {
                   result = true;

       }

   }catch(SocketException ex)
   {
       Log.e("Error : " , "Error on soapPrimitiveData() " + ex.getMessage());
       ex.printStackTrace();
   }
   catch (Exception e) {
       Log.e("Error : " , "Error on soapPrimitiveData() " + e.getMessage());
           e.printStackTrace();
   }
   return result;

   }


private class LoginTask extends AsyncTask<Void, Void, Void> {

    private final ProgressDialog dialog = new ProgressDialog(
                    Login.this);

    protected void onPreExecute() {

            this.dialog.setMessage("Logging in...");
            this.dialog.show();

    }


    protected Void doInBackground(final Void... unused) {

        boolean auth=doLogin(user_id,password);
        System.out.println(auth);

        return null;// don't interact with the ui!
    }


    protected void onPostExecute(Void result) {


            if (this.dialog.isShowing()) {
            this.dialog.dismiss();
        }         
      }

    } 

   } 

package.com.demo；
导入java.net.SocketException；
导入org.ksoap2.SoapEnvelope；
导入org.ksoap2.serialization.SoapObject；
导入org.ksoap2.serialization.SoapPrimitive；
导入org.ksoap2.serialization.SoapSerializationEnvelope；
导入org.ksoap2.transport.HttpTransportSE；
导入android.app.Activity；
导入android.app.ProgressDialog；
导入android.os.AsyncTask；
导入android.os.Bundle；
导入android.util.Log；
导入android.view.view；
导入android.view.view.OnClickListener；
导入android.widget.Button；
导入android.widget.EditText；
公共类登录扩展活动{
私有最终字符串命名空间=”http://tempuri.org/";
私有最终字符串URL=”http://10.0.2.2/testlogin/Service1.asmx";
字符串用户标识；
字符串密码；
@凌驾
创建时的公共void（Bundle savedInstanceState）
{
super.onCreate（savedInstanceState）；
setContentView（R.layout.main）；
按钮符号=（按钮）findViewById（R.id.regsubmitbtn）；
signin.setOnClickListener（新的OnClickListener（）{
公共void onClick（视图v）{
EditText etxt_user=（EditText）findviewbyd（R.id.usereditlog）；
user_id=etxt_user.getText（）.toString（）；
EditText etxt_password=（EditText）findViewById（R.id.pwdeditlog）；
password=etxt_password.getText（）.toString（）；
新登录任务（）.execute（）；
}
});   
}
私有布尔多洛金（字符串用户id，字符串密码）{
布尔结果=假；
最后一个字符串SOAP_ACTION=”http://tempuri.org/GetLogin";
最终字符串方法\u NAME=“GetLogin”；
SoapObject请求=新的SoapObject（名称空间、方法名称）；
request.addProperty（“userid”，user\u id）；
request.addProperty（“密码”，password）；
SoapSerializationEnvelope=新的SoapSerializationEnvelope（SoapEnvelope.VER11）；
envelope.dotNet=true；//将此变量设置为true，以便
//与似乎是
//.Net服务的默认编码。
envelope.setOutputSoapObject（请求）；
系统输出打印项次（请求）；
HttpTransportSE androidHttpTransport=新的HttpTransportSE（URL）；
试一试{
调用（SOAP_操作，信封）；
SoapPrimitive响应=（SoapPrimitive）信封.getResponse（）；
Log.i（“myApp”，response.toString（））；
System.out.println（“响应”+响应）；
if（response.toString（）.equalsIgnoreCase（“成功”））
{
结果=真；
}
}捕获（SocketException例外）
{
Log.e（“错误：”，“soapPrimitiveData（）上的错误”+ex.getMessage（））；
例如printStackTrace（）；
}
捕获（例外e）{
Log.e（“错误：”，“soapPrimitiveData（）上的错误”+e.getMessage（））；
e、 printStackTrace（）；
}
返回结果；
}
私有类LoginTask扩展异步任务{
private final ProgressDialog dialog=新建ProgressDialog(
登录。这个）；
受保护的void onPreExecute（）{
this.dialog.setMessage（“登录…”）；
this.dialog.show（）；
}
受保护的空位背景（最终空位…未使用）{
布尔auth=doLogin（用户id、密码）；
System.out.println（auth）；
return null；//不与ui交互！
}
受保护的void onPostExecute（void结果）{
if（this.dialog.isShowing（））{
this.dialog.disclose（）；
}         
}
} 
} 

非常感谢您的回复！！是的，我会尝试你的链接，如果对我有用的话，让你知道！：-）链接已过期！上面的代码在这个.dialog.show（）中出错；和新的登录任务（）.execute（）；这两条线。。。我怎样才能解决这个问题

             package com.demo;
             import java.net.SocketException;
             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.app.Activity;
             import android.app.ProgressDialog;
             import android.os.AsyncTask;
             import android.os.Bundle;
             import android.util.Log;
             import android.view.View;
             import android.view.View.OnClickListener;
             import android.widget.Button;
             import android.widget.EditText;

     public class Login extends Activity {

  private final String NAMESPACE = "http://tempuri.org/";
  private final String URL = "http://10.0.2.2/testlogin/Service1.asmx";

    String user_id;
    String password;

  @Override
   public void onCreate(Bundle savedInstanceState)
      {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button signin = (Button) findViewById(R.id.regsubmitbtn);
        signin.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {


                        EditText etxt_user = (EditText) findViewById(R.id.usereditlog);
                        user_id = etxt_user.getText().toString();
                        EditText etxt_password = (EditText)  findViewById(R.id.pwdeditlog);
                        password = etxt_password.getText().toString();

                        new LoginTask().execute();

                }
           });   
     }

    private boolean doLogin(String user_id, String password) {   

   boolean result=false;
   final String SOAP_ACTION = "http://tempuri.org/GetLogin";
   final String METHOD_NAME = "GetLogin";     
   SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

   request.addProperty("userid", user_id);
   request.addProperty("password",password);
   SoapSerializationEnvelope envelope = new   SoapSerializationEnvelope(SoapEnvelope.VER11);
   envelope.dotNet = true; // Set this variable to true for
                                                           // compatibility with what seems to be the
                                                           // default encoding for .Net-Services.
   envelope.setOutputSoapObject(request);

   System.out.println(request);

   HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);


   try {
           androidHttpTransport.call(SOAP_ACTION, envelope);
           SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
           Log.i("myApp", response.toString());
           System.out.println("response" +response);

                   if(response.toString().equalsIgnoreCase("success"))
       {
                   result = true;

       }

   }catch(SocketException ex)
   {
       Log.e("Error : " , "Error on soapPrimitiveData() " + ex.getMessage());
       ex.printStackTrace();
   }
   catch (Exception e) {
       Log.e("Error : " , "Error on soapPrimitiveData() " + e.getMessage());
           e.printStackTrace();
   }
   return result;

   }


private class LoginTask extends AsyncTask<Void, Void, Void> {

    private final ProgressDialog dialog = new ProgressDialog(
                    Login.this);

    protected void onPreExecute() {

            this.dialog.setMessage("Logging in...");
            this.dialog.show();

    }


    protected Void doInBackground(final Void... unused) {

        boolean auth=doLogin(user_id,password);
        System.out.println(auth);

        return null;// don't interact with the ui!
    }


    protected void onPostExecute(Void result) {


            if (this.dialog.isShowing()) {
            this.dialog.dismiss();
        }         
      }

    } 

   }