问题
P.S : I have looked at similar questions but haven't been able to understand what to do. They talk about using a marshal class, which I can't seem to understand.
I am creating an Android application to consume a JAX-WS. I am using the ksoap-2 library for the same.
I take the inputs from the user in a series of text fields and pass these onto WebService activity.
Here in the onCreate method I call the web service after setting up the soap object :
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the message from the intent
Intent intent = getIntent();
Bundle extras = intent.getExtras();
String cropName = extras.getString(AndroidWSClient.CROP_NAME);
float area = extras.getFloat(AndroidWSClient.AREA);
Similarly I get the some names of fertilizers and add them to an ArrayList called fertilizerList. i also get three more values in a similar manner.
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
// Add parameters to the SOAP object
// cropName
PropertyInfo propInfo = new PropertyInfo();
propInfo.name = "cropName";
propInfo.type = PropertyInfo.STRING_CLASS;
request.addProperty(propInfo, cropName);
System.out.println("!!!! Success with cropName !!!");
// Area
propInfo = new PropertyInfo();
propInfo.setName("area");
propInfo.setType(Double.class);
request.addProperty(propInfo, area);
System.out.println("!!!! Success with area !!!");
// fertilizerList
propInfo = new PropertyInfo();
propInfo.setName("fertilizerList");
propInfo.setType(ArrayList.class);
request.addProperty(propInfo, fertilizerList);
System.out.println("!!!! Success with fertilizerList !!!");
// N value
propInfo = new PropertyInfo();
propInfo.setName("nitrogen");
propInfo.setType(Integer.class);
request.addProperty(propInfo, n);
System.out.println("!!!! Success with N !!!");
Here I create the soap object and properties to it.
I need to pass multiple parameters to my Web Service, so the order in which I add these properties is the order in which they'll appear as parameters to the web service, right ?
I then send out the request to the web service :
// Send out the request to the web service
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
System.out.println("created envelope!");
envelope.setOutputSoapObject(request);
System.out.println("Reached set output object");
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
System.out.println("Reached HttpTransport layer");
try {
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive resultsRequestSOAP = (SoapPrimitive) envelope.getResponse();
TextView textView = new TextView(this);
textView.setTextSize(40);
System.out.println(resultsRequestSOAP.toString());
textView.setText(resultsRequestSOAP.toString());
// Set the text view as the activity layout
setContentView(textView);
} catch (Exception e) {
e.printStackTrace();
}
Here is the output from the logcat :
07-11 05:37:32.782: I/System.out(1698): !!!! Success with cropName !!!
07-11 05:37:32.782: I/System.out(1698): !!!! Success with area !!!
07-11 05:37:32.792: I/System.out(1698): !!!! Success with fertilizerList !!!
07-11 05:37:32.792: I/System.out(1698): !!!! Success with N !!!
07-11 05:37:32.872: I/System.out(1698): created envelope!
07-11 05:37:32.872: I/System.out(1698): Reached set output object
07-11 05:37:32.912: I/System.out(1698): Reached HttpTransport layer
07-11 05:37:33.012: W/System.err(1698): java.lang.RuntimeException: Cannot serialize: 1.0
07-11 05:37:33.012: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeElement(SoapSerializationEnvelope.java:629)
07-11 05:37:33.022: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeProperty(SoapSerializationEnvelope.java:613)
07-11 05:37:33.032: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeObjectBody(SoapSerializationEnvelope.java:582)
07-11 05:37:33.032: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeObjectBody(SoapSerializationEnvelope.java:566)
07-11 05:37:33.062: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeElement(SoapSerializationEnvelope.java:623)
07-11 05:37:33.072: W/System.err(1698): at org.ksoap2.serialization.SoapSerializationEnvelope.writeBody(SoapSerializationEnvelope.java:547)
07-11 05:37:33.072: W/System.err(1698): at org.ksoap2.SoapEnvelope.write(SoapEnvelope.java:192)
07-11 05:37:33.092: W/System.err(1698): at org.ksoap2.transport.Transport.createRequestData(Transport.java:74)
07-11 05:37:33.092: W/System.err(1698): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:58)
07-11 05:37:33.112: W/System.err(1698): at com.example.androidwsclient.WebServiceActivity.onCreate(WebServiceActivity.java:99)
07-11 05:37:33.112: W/System.err(1698): at android.app.Activity.performCreate(Activity.java:5104)
07-11 05:37:33.132: W/System.err(1698): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
回答1:
Implement a Marshal for the Double
public class MarshalDouble implements Marshal
{
@Override
public Object readInstance(XmlPullParser parser, String namespace, String name,
PropertyInfo expected) throws IOException, XmlPullParserException {
return Double.parseDouble(parser.nextText());
}
public void register(SoapSerializationEnvelope cm) {
cm.addMapping(cm.xsd, "double", Double.class, this);
}
@Override
public void writeInstance(XmlSerializer writer, Object obj) throws IOException {
writer.text(obj.toString());
}
}
Then call There register method in your code.
new MarshalDouble().register(envelope);
来源：https://stackoverflow.com/questions/17586152/web-service-android-application-cannot-serialize-1-0