Android et .NET WebService - analyse du XML retourné

Question

J'ai donc fait quelques choses "mineures" avec des services Web et j'ai eu un certain succès, mais quand j'ai tenté de bricoler avec des trucs pour le plaisir, je rencontrais ce que je crois que moi n'éside pas mal les données pour obtenir les informations pour obtenir les informationsce dont j'ai besoin.Je peux obtenir le XML entier comme une chaîne mais pas seulement les 3 programmes dont j'ai besoin.Les getPrograms et les getInstitutions sont suffisamment similaires que si je peux obtenir une partie des programmes à la fois analysée, je peux obtenir les institutions.Je crois que je suis confus, c'est ce que je crois que les "tags" et combien ils diffèrent de tout didacticiel à ce que j'utilise réellement.Je suis également allé la voie du xmlpullparser mais je ne sais pas si c'est la meilleure façon de le faire (est-ce?).Le format de ce que j'obtiens est le suivant:

<DataSet>
<xs:schema id="NewDataSet">
<xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="tblPrograms">
<xs:complexType>
<xs:sequence>
<xs:element name="Program" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<diffgr:diffgram>
<NewDataSet>
<tblPrograms diffgr:id="tblPrograms1" msdata:rowOrder="0">
<Program>Ancillary</Program>
</tblPrograms>
<tblPrograms diffgr:id="tblPrograms2" msdata:rowOrder="1">
<Program>Ancillary ESY</Program>
</tblPrograms>
<tblPrograms diffgr:id="tblPrograms3" msdata:rowOrder="2">
<Program>REAP</Program>
</tblPrograms>
</NewDataSet>
</diffgr:diffgram>
</DataSet>

et mon code source est comme suit:

public class FirstScreen extends Activity {
    /** Called when the activity is first created. */

    private static final String NAMESPACE = "http://tempuri.org/";
    private static final String URL = "http://www.ces.org/android/android.asmx";//must point to where service is located


    /** HelloAndroid method */
    //SOAP_ACTION = NAMESPACE + METHODNAME
    private static final String SOAP_ACTION = "http://tempuri.org/HelloAndroid";
    private static final String METHOD_NAME = "HelloAndroid";


    /** SelectInstitutionTypes method */
    //SOAP_ACTION = NAMESPACE + METHODNAME
    private static final String SOAP_ACTION_INSTITUTIONS = "http://tempuri.org/SelectInstitutionTypes";
    private static final String METHOD_NAME_INSTITUTIONS = "SelectInstitutionTypes";


    /** SelectPrograms method */
    //SOAP_ACTION = NAMESPACE + METHODNAME
    private static final String SOAP_ACTION_PROGRAMS = "http://tempuri.org/SelectPrograms";
    private static final String METHOD_NAME_PROGRAMS = "SelectPrograms";



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);


        getHelloAndroid();
        //getInstitutionTypes();
        getPrograms();

    }//end of onCreate




    private void getPrograms() {
        TextView tv3 = (TextView)findViewById(R.id.TextView03);//contains SelectInstitutionTypes information

        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME_PROGRAMS);   

        //soap serialization
        SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);//running 1.1
        soapEnvelope.dotNet=true;//to handle .net services asmx/aspx
        soapEnvelope.setOutputSoapObject(request);//package request

        //create transport object(s)
        HttpTransportSE aht = new HttpTransportSE(URL);

        try
        {      
            aht.debug = true;
            //make the call

            aht.call(SOAP_ACTION_PROGRAMS, soapEnvelope); //in/out

            SoapObject resultString = (SoapObject)soapEnvelope.getResponse();

            XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
            factory.setNamespaceAware(true);
            XmlPullParser xpp = factory.newPullParser();
            xpp.setInput(new StringReader (resultString.toString()));
            int eventType = xpp.getEventType();
            while(eventType != XmlPullParser.END_DOCUMENT){
                 if(eventType == XmlPullParser.START_DOCUMENT) {
                     System.out.println("Start document");
                 } else if(eventType == XmlPullParser.START_TAG) {
                     if(xpp.getName().equals("Program"))
                     System.out.println("Start tag "+xpp.getName());
                     System.out.println("Program"+ xpp.getAttributeName(0));
                 } else if(eventType == XmlPullParser.END_TAG) {
                     System.out.println("End tag "+xpp.getName());
                 } else if(eventType == XmlPullParser.TEXT) {
                     System.out.println("Text "+xpp.getText());
                 }
                 eventType = xpp.next();
                }
                System.out.println("End document");






            tv3.setBackgroundColor(Color.BLUE);         
            tv3.setText("STATUS: " + resultString /*ks.toString()*/ + "\n\n" + "AHTHOST:  " + 
                    aht.getHost() + "\n\n" + "NAHT STRING:  " + aht.toString());
        }
        catch(Exception e)
        {
            e.toString();
            e.printStackTrace();

            tv3.setText("EXCEPTION NAME:  " + e.toString().toString() + 
                    "\n\n" + "EXCEPTION MESSAGE:  " + e.getMessage() + " ");
        }
    }//end of getPrograms



    private void getInstitutionTypes() {

        TextView tv2 = (TextView)findViewById(R.id.TextView02);//contains SelectInstitutionTypes information
        //tv2.setText("TODO: SelectInstitutionTypes");

        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME_INSTITUTIONS);   

        //soap serialization
        SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);//running 1.1
        soapEnvelope.dotNet=true;//to handle .net services asmx/aspx
        soapEnvelope.setOutputSoapObject(request);//package request

        //create transport object(s)
        HttpTransportSE aht = new HttpTransportSE(URL);

        try
        {      
            aht.debug = true;
            //make the call
            aht.call(SOAP_ACTION_INSTITUTIONS, soapEnvelope); //in/out
            SoapObject resultString = (SoapObject)soapEnvelope.getResponse();


            tv2.setText("STATUS: " + resultString /*ks.toString()*/ + "\n\n" + "AHTHOST:  " + 
                    aht.getHost() + "\n\n" + "NAHT STRING:  " + aht.toString());

        }
        catch(Exception e)
        {
            e.toString();
            e.printStackTrace();

            tv2.setText("EXCEPTION NAME:  " + e.toString().toString() + 
                    "\n\n" + "EXCEPTION MESSAGE:  " + e.getMessage() + " ");
        }       
    }//end of getInstitutionTypes



    public void getHelloAndroid() {

        TextView tv = (TextView)findViewById(R.id.TextView01);//contains HelloAndroid information

        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);   

        //soap serialization
        SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);//running 1.1
        soapEnvelope.dotNet=true;//to handle .net services asmx/aspx
        soapEnvelope.setOutputSoapObject(request);//package request

        //create transport object(s)
        HttpTransportSE aht = new HttpTransportSE(URL);

        try
        {      
            aht.debug = true;
            //make the call
            aht.call(SOAP_ACTION, soapEnvelope); //in/out
            SoapPrimitive resultString = (SoapPrimitive)soapEnvelope.getResponse();

            tv.setBackgroundColor(Color.BLUE);

            tv.setText("STATUS: " + resultString + "\n\n" + "AHTHOST:  " + 
                    aht.getHost() + "\n\n" + "NAHT STRING:  " + aht.toString());

        }
        catch(Exception e)
        {
            e.toString();
            e.printStackTrace();

            tv.setText("EXCEPTION NAME:  " + e.toString().toString() + 
                    "\n\n" + "EXCEPTION MESSAGE:  " + e.getMessage() + " ");
        }       
    }//end of getHelloAndroid


}//end of activity

Answer 1

Donc, après de nombreuses recherches, j'ai pu obtenir cela correctement analysé afin que je fins de répondre à ma propre question.J'ai aussi dû changer la structure de mon programme pour obtenir ce dont j'avais besoin ... ou du moins à comprendre ce que je faisais avant de commencer à la mettre en œuvre dans le code ci-dessus.Donc, les 3 classes ci-dessous sont celles que j'avais l'habitude d'obtenir ce dont j'avais besoin ... pour l'instant.

public class MyXMLHandler extends DefaultHandler {

    Boolean currentElement = false;
    String currentValue = null;
    public static ProgramList programList = null;

    public static ProgramList getProgramList() {
        return programList;
    }

    public static void setProgramList(ProgramList programList) {
        MyXMLHandler.programList = programList;
    }

    //called when tag starts ( ex:- <tblPrograms>diffgr:id="tblPrograms1" msdata:rowOrder="0"</tblPrograms>  -- <tblPrograms> )
    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException {

        currentElement = true;

        //set up for hierarchy scan to place data within category
        if (localName.equals("DataSet"))
        {
            /** Start */ 
            programList = new ProgramList();
        } else if (localName.equals("tblPrograms")){//"NewDataSet" - DOES NOT WORK - F.C.
            /** Get attribute value */
            String attr = attributes.getValue(0);
            String attr2 = attributes.getValue(1);
            programList.setTable(attr);
            programList.setRowOrder(attr2);
        }

    }

    //called when tag closing ( ex:- <Program>Ancillary</Program>  -- </Program> )
    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {

        currentElement = false;

        /** set value */ 
        if (localName.equalsIgnoreCase("Program"))
            programList.setProgram(currentValue);
        //else if (localName.equalsIgnoreCase("tblPrograms"))
            //programList.setWebsite(currentValue);

    }

    //called to get tag characters ( ex:- <Program>Ancillary</Program> -- to get Ancillary character )
    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException {

        if (currentElement) {
            currentValue = new String(ch, start, length);
            currentElement = false;
        }

    }

}

Puis j'ai mes méthodes Getter et Setter pour les variables de ma liste de programmes.

//contains getter and setter method for variables 
public class ProgramList {

    //variables
    private ArrayList<String> program = new ArrayList<String>();
    private ArrayList<String> rowOrder = new ArrayList<String>();
    private ArrayList<String> table = new ArrayList<String>();


    //in Setter method default it will return arraylist change that to add

    public ArrayList<String> getProgram() {
        return program;
    }

    public void setProgram(String program) {
        this.program.add(program);
    }

    public ArrayList<String> getRowOrder() {
        return rowOrder;
    }

    public void setRowOrder(String rowOrder) {
        this.rowOrder.add(rowOrder);
    }

    public ArrayList<String> getTable() {
        return table;
    }

    public void setTable(String table) {
        this.table.add(table);
    }

}

enfin principal

public class XMLParsingExample extends Activity {

    //create object For SiteList class
    ProgramList programList = null;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //create a new layout to display the view 
        //LinearLayout layout = new LinearLayout(this);
        //layout.setOrientation(1);

        LinearLayout ll = (LinearLayout)findViewById(R.id.LL01);

        //create a new textview array to display the results 
        //TextView name[];
        //TextView website[];
        //TextView category[];


        try {

            //handle XML
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser sp = spf.newSAXParser();
            XMLReader xr = sp.getXMLReader();

            //URL to parse XML Tags 
            URL sourceUrl = new URL(
                    "http://www.ces.org/android/android.asmx/SelectPrograms");

            //Create handler to handle XML Tags ( extends DefaultHandler )
            MyXMLHandler myXMLHandler = new MyXMLHandler();
            xr.setContentHandler(myXMLHandler);
            xr.parse(new InputSource(sourceUrl.openStream()));

        } catch (Exception e) {
            System.out.println("XML Pasing Excpetion = " + e);
        }

        //get result from MyXMLHandler SitlesList Object 
        programList = MyXMLHandler.programList;

        //assign a textview array length by arraylist size 
        TextView name[] = new TextView[programList.getProgram().size()];
        TextView website[] = new TextView[programList.getProgram().size()];
        TextView category[] = new TextView[programList.getProgram().size()];




        //set the result text in textview and add it to layout 
        for (int i = 0; i < programList.getProgram().size(); i++) {
            name[i] = new TextView(this);
            name[i].setText("Program = "+programList.getProgram().get(i));
            name[i].setBackgroundColor(Color.BLUE);

            website[i] = new TextView(this);
            website[i].setText("Row Order = "+programList.getRowOrder().get(i));

            category[i] = new TextView(this);
            category[i].setText("Program Table = "+programList.getTable().get(i));

            //layout.addView(name[i]);
            //layout.addView(website[i]);
            //layout.addView(category[i]);
            ll.addView(name[i]);
            ll.addView(website[i]);
            ll.addView(category[i]);


        }

        //set the layout view to display 
        //setContentView(layout);
        setContentView(ll);

    }
}