如何使用KSOAP2从Android的调用.NET web服务?如何使用KSOAP2从Android

2019-05-13 23:36发布

我有一个问题,同时调用web服务。 我在服务器上有一个.NET Web服务,而且我在使用Android中KSOAP2(ksoap2-J2SE的全2.1.2)。 当运行程序我得到一个运行时异常,如“org.ksoap2.serialization.SoapPrimitive”。 我该怎么办?

这里是我的代码。

package projects.ksoap2sample;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;

import android.app.*;
import android.os.*;
import android.widget.TextView;

public class ksoap2sample extends Activity {
    /** Called when the activity is first created. */
    private static final String SOAP_ACTION = "http://tempuri.org/HelloWorld";
    private static final String METHOD_NAME = "HelloWorld";
    private static final String NAMESPACE = "http://tempuri.org/";
    private static final String URL = "http://192.168.1.19/TestWeb/WebService.asmx";
    TextView tv;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv=(TextView)findViewById(R.id.text1);

        try {
            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

            //request.addProperty("prop1", "myprop");

            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
            envelope.dotNet=true;
            envelope.setOutputSoapObject(request);

            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

            androidHttpTransport.call(SOAP_ACTION, envelope);

            Object result = (Object)envelope.getResponse();

            String[] results = (String[])  result;
            tv.setText( ""+results[0]);
        }
        catch (Exception e) {
            tv.setText(e.getMessage());
        }
    }
}

Answer 1:

这是非常简单的。 您所得到的结果为Object这是一个原始的一种。

您的代码:

Object result = (Object)envelope.getResponse();

正确的代码:

SoapObject result=(SoapObject)envelope.getResponse();

//To get the data.
String resultData=result.getProperty(0).toString();
// 0 is the first object of data.

我想,这肯定应该工作。



Answer 2:

请问你的NET Web服务是什么样子?

我一直在使用同样的效果KSOAP 2.3从code.google.com 。 我跟着在教程的代码项目 (这是伟大BTW)。

每次我用

    Integer result = (Integer)envelope.getResponse();

得到我的web服务的结果(不分类型,我试过对象,字符串,INT)我跑进org.ksoap2.serialization.SoapPrimitive例外。

我找到了解决方法(解决方法)。 我必须做的第一件事就是从我的web服务方法删除“SoapRpcMethod()属性。

    [SoapRpcMethod(), WebMethod]
    public Object GetInteger1(int i)
    {
        // android device will throw exception
        return 0;
    }

    [WebMethod]
    public Object GetInteger2(int i)
    {
        // android device will get the value
        return 0;
    }

然后,我改变了我的Android代码:

    SoapPrimitive result = (SoapPrimitive)envelope.getResponse();

不过,我得到一个SoapPrimitive对象,其中有一个“值”提起那是私人的。 幸运的是,价值是通过传递toString()方法,所以我用Integer.parseInt(result.toString())让我的价值,这是对我来说足够了,因为我没有任何复杂类型,我需要得到从我的Web服务。

下面是完整的源代码:

private static final String SOAP_ACTION = "http://tempuri.org/GetInteger2";
private static final String METHOD_NAME = "GetInteger2";
private static final String NAMESPACE = "http://tempuri.org/";
private static final String URL = "http://10.0.2.2:4711/Service1.asmx";

public int GetInteger2() throws IOException, XmlPullParserException {
    SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

    PropertyInfo pi = new PropertyInfo();
    pi.setName("i");
    pi.setValue(123);
    request.addProperty(pi);

    SoapSerializationEnvelope envelope =
        new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.dotNet = true;
    envelope.setOutputSoapObject(request);

    AndroidHttpTransport androidHttpTransport = new AndroidHttpTransport(URL);
    androidHttpTransport.call(SOAP_ACTION, envelope);

    SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
    return Integer.parseInt(result.toString());
}


Answer 3:

类型转换信封SoapPrimitive:

SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
String strRes = result.toString();

它会工作。



Answer 4:

您可以使用下面的代码来调用Web服务,并得到响应。使确保您的Web服务,如果你。如果你您在使用MySQL中 ,你需要从SQL Server数据库中使用的数据返回的数据表格式 ..This你的代码的帮助响应改变一件事刚刚从句子替换词NewDataSet obj2=(SoapObject) obj1.getProperty("NewDataSet"); 通过DocumentElement

private static final String NAMESPACE = "http://tempuri.org/";
private static final String URL = "http://localhost/Web_Service.asmx?"; // you can use   IP address instead of localhost
private static final String METHOD_NAME = "Function_Name";
private static final String SOAP_ACTION = NAMESPACE + METHOD_NAME;

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("parm_name", prm_value); // Parameter for Method
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

try {
    androidHttpTransport.call(SOAP_ACTION, envelope); //call the eb service Method
} catch (Exception e) {
    e.printStackTrace();
} //Next task is to get Response and format that response

SoapObject obj, obj1, obj2, obj3;
obj = (SoapObject) envelope.getResponse();
obj1 = (SoapObject) obj.getProperty("diffgram");
obj2 = (SoapObject) obj1.getProperty("NewDataSet");

for (int i = 0; i < obj2.getPropertyCount(); i++) //the method getPropertyCount() return the number of rows
{
    obj3 = (SoapObject) obj2.getProperty(i);
    obj3.getProperty(0).toString(); //value of column 1
    obj3.getProperty(1).toString(); //value of column 2
    //like that you will get value from each column
}

如果您有任何关于此问题的任何你可以写我..



Answer 5:

如果一个以上的结果,预计,则getResponse()方法将返回一个Vector含各种响应。

在这种情况下有问题的代码变为:

Object result = envelope.getResponse();

// treat result as a vector
String resultText = null;
if (result instanceof Vector)
{
    SoapPrimitive element0 = (SoapPrimitive)((Vector) result).elementAt(0);
    resultText = element0.toString();
}

tv.setText(resultText);

答案基础上, ksoap2-的Android(mosabua叉)



Answer 6:

我认为你不能打电话

 androidHttpTransport.call(SOAP_ACTION, envelope);

在主线程。

网络运营应该在不同的线程来完成。

创建另一个线程或的AsyncTask调用该方法。



文章来源: How to call a .NET Webservice from Android using KSOAP2?