java.lang.RuntimeException:无法序列化：0.0

我在asyncTask中发出soap请求，但遇到了如下奇怪错误

04-18 13:51:25.070: E/AndroidRuntime(23482):    at org.ksoap2.serialization.SoapSerializationEnvelope.writeElement(SoapSerializationEnvelope.java:658)
04-18 13:51:25.070: E/AndroidRuntime(23482):    at com.mobilion.afad.RegisterDevice.getWebService(RegisterDevice.java:49)
04-18 13:51:25.070: E/AndroidRuntime(23482):    at com.mobilion.afad.RegisterDevice.access$0(RegisterDevice.java:44)
04-18 13:51:25.070: E/AndroidRuntime(23482):    at com.mobilion.afad.RegisterDevice$requestTask.doInBackground(RegisterDevice.java:109)

这些是我的方法

private boolean getWebService(String Method, SoapSerializationEnvelope SoapRequest)
{
    HttpTransportSE httpTransport = new HttpTransportSE(SoapAddress);
    try
    {
        httpTransport.call(Soapaction, SoapRequest);
        //httpTransport.call(NameSpace + Method, SoapRequest);
        return true;
    }
    catch (IOException e)
    {
        e.printStackTrace();
        return false;
    }
    catch (XmlPullParserException e)
    {
        e.printStackTrace();
        return false;
    }
}

及

---

下面是引发该异常的方法：

private void writeElement(XmlSerializer writer, Object element, 
                          PropertyInfo type, Object marshal)
        throws IOException {
    if (marshal != null) {
        ((Marshal) marshal).writeInstance(writer, element);
    } else if (element instanceof SoapObject) {
        writeObjectBody(writer, (SoapObject) element);
    } else if (element instanceof KvmSerializable) {
        writeObjectBody(writer, (KvmSerializable) element);
    } else if (element instanceof Vector) {
        writeVectorBody(writer, (Vector) element, type.elementType);
    } else {
        throw new RuntimeException("Cannot serialize: " + element);
    }
}

如您所见，当被序列化的

元素

不是预期的类型时，就会抛出它。根据您得到的消息判断，实际对象很可能是

浮点

或

双精度

或

大十进制

实例。我会仔细查看您输入到请求属性中的值

---

然而，有一点令人费解。根据stacktrace，您的

getWebService

方法直接调用

writeElement

方法。然而，根据源代码，这是不可能的。你有没有。。。嗯。。。编辑堆栈跟踪？如果你想让别人对你的问题做出准确的诊断，那是个坏主意

private void writeElement(XmlSerializer writer, Object element, 
                          PropertyInfo type, Object marshal)
        throws IOException {
    if (marshal != null) {
        ((Marshal) marshal).writeInstance(writer, element);
    } else if (element instanceof SoapObject) {
        writeObjectBody(writer, (SoapObject) element);
    } else if (element instanceof KvmSerializable) {
        writeObjectBody(writer, (KvmSerializable) element);
    } else if (element instanceof Vector) {
        writeVectorBody(writer, (Vector) element, type.elementType);
    } else {
        throw new RuntimeException("Cannot serialize: " + element);
    }
}