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Web サービスと通信して応答値を取得するためのプログラムを作成しました。しかし、プログラムをデバッグすると、行で requestDump=null で終了しandroidHttpTransport.call(SOAP_ACTION, envelope);ます エラーの理由と、これに対して何ができるか教えてもらえますか

public class WebService extends Activity {
       private final String NAMESPACE = "http://tempuri.org/";
       private final String URL = "http://www.w3schools.com/webservices/tempconvert.asmx";
       private final String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
       private final String METHOD_NAME = "CelsiusToFahrenheit";
    String celsius;
    Button b;
    TextView tv;
    EditText et;
    String res,resultval;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web_service);
        et=(EditText)findViewById(R.id.editText1);

        tv=(TextView)findViewById(R.id.Result);
        b=(Button)findViewById(R.id.button1);
        b.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
            //String result=getFarenheit(et.getText().toString());
            //tv.setText(result+"°F");
            new service().execute();
            }
        });
    }
    private class service extends AsyncTask<Void, Void, String>{

        @Override
        protected String doInBackground(Void... arg0) {
             celsius=et.getText().toString();
            SoapObject request= new SoapObject(NAMESPACE, METHOD_NAME);
            PropertyInfo celsuiusPI= new PropertyInfo();
            celsuiusPI.setName("Celsius");
            celsuiusPI.setValue(celsius);
            celsuiusPI.setType(String.class);
            request.addProperty("XMLMarks",celsuiusPI);
            SoapSerializationEnvelope envelope=new SoapSerializationEnvelope (SoapEnvelope.VER11);
            envelope.dotNet=true;
            envelope.implicitTypes = true;
            envelope.enc = SoapSerializationEnvelope.ENC2003;
            envelope.xsd = SoapEnvelope.XSD;
            envelope.xsi = SoapEnvelope.XSI;
            envelope.setOutputSoapObject(request);
            envelope.setAddAdornments(false);
            SoapPrimitive response; 

            HttpTransportSE androidHttpTransport=new HttpTransportSE(URL);
            try{
                androidHttpTransport.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
                androidHttpTransport.debug = true;
                androidHttpTransport.call(SOAP_ACTION, envelope);
                String dump= androidHttpTransport.requestDump.toString();
                response=(SoapPrimitive)envelope.getResponse();
                Toast.makeText(WebService.this, response.toString(), 20).show();
                Log.i("WebService output", response.toString());
                System.out.println("WebService Response"+response.toString());
                Object res= response.toString();
                resultval=(String) res;
            }
            catch(Exception e){
                e.printStackTrace();
            }

            return res;

        }
         protected void onPostExecute(String h){
             String result=h;

                tv.setText(result+"°F");

    }


}
}
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1 に答える 1

1

サービス AsyncTask をこの新しいものに置き換えるだけで、結果が表示されます。

コード：

private class service extends AsyncTask<Void, Void, String> {

    @Override
    protected String doInBackground(Void... arg0) {
        System.out.println("In DoIn Background");

        // Initialize soap request + add parameters
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

        // Use this to add parameters
        request.addProperty("Celsius", txtCel.getText().toString());

        // Declare the version of the SOAP request
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);

        envelope.setOutputSoapObject(request);
        envelope.dotNet = true;

        try {
            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

            // this is the actual part that will call the webservice
            androidHttpTransport.call(SOAP_ACTION, envelope);

            // Get the SoapResult from the envelope body.
            SoapObject result = (SoapObject) envelope.bodyIn;

            if (result != null) {
                // Get the first property and change the label text
                // txtFar.setText(result.getProperty(0).toString());
                res = result.getProperty(0).toString();
            } else {
                Toast.makeText(getApplicationContext(), "No Response",
                        Toast.LENGTH_LONG).show();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return res;

    }

    protected void onPostExecute(String h) {
        String result = h;

        tv.setText(result + "°F");

    }

}
于 2012-11-20T05:55:36.677 に答える