android - 代理服务器后面的Android Soap Web服务错误

Question

我编写了一个与 Web 服务通信并获取响应值的程序。但是当我调试程序时，我以 requestDump=null 结束 有人androidHttpTransport.call(SOAP_ACTION, envelope);能告诉我错误的原因吗？我该怎么办？

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");

    }


}
}

Answer 1

只需将您的服务 AsyncTask 替换为这个新服务并查看结果：

代码：

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");

    }

}