REST and SOAP webservice in android

I found tutorial to use kSOAP api to use SOAP webservice. Can anyone provide me sample programs (tutorial) on getting REST webservice and SOAP webservice in android. I have googled lot but didn't find such type of tutorial.

回答1:

SOAP

Pros:

Langauge, platform, and transport agnostic

Designed to handle distributed computing environments

Is the prevailing standard for web services, and hence has better support from other standards (WSDL, WS-*) and tooling from vendors

Built-in error handling (faults)

Extensibility

Cons:

Conceptually more difficult, more "heavy-weight" than REST

More verbose

Harder to develop, requires tools

REST

Pros:

Language and platform agnostic

Much simpler to develop than SOAP

Small learning curve, less reliance on tools

Concise, no need for additional messaging layer

Closer in design and philosophy to the Web

Cons:

Assumes a point-to-point communication model--not usable for distributed computing environment where message may go through one or more intermediaries

Lack of standards support for security, policy, reliable messaging, etc., so services that have more sophisticated requirements are harder to develop ("roll your own")

Tied to the HTTP transport model

Example of REST

Use apache http jar

public void callRestWebService(){  
          System.out.println(".....REST..........");
             HttpClient httpclient = new DefaultHttpClient();  
             HttpGet request = new HttpGet(wsdlURL);  
             request.addHeader("company name", "abc");  

             request.addHeader("getAccessNumbers","http://service.xyz.com/");
             ResponseHandler<String> handler = new BasicResponseHandler();  
             try {  
                 result = httpclient.execute(request, handler); 
                 System.out.println("..result..."+result);
             } catch (ClientProtocolException e) {  
                 e.printStackTrace();  
             } catch (IOException e) {  
                 e.printStackTrace();  
             }  
             httpclient.getConnectionManager().shutdown();  

         } // end callWebService()  
     }

Example of SOAP

You can use either ksoap or create soap xml by yourself and send to url

private boolean callSOAPWebService() {
        OutputStream out = null;
        int respCode = -1;
        boolean isSuccess = false;
        URL url = null;
        HttpsURLConnection httpURLConnection = null;

        try {

            url = new URL(wsdlURL);


            httpURLConnection = (HttpsURLConnection) url.openConnection();

            do {
                // httpURLConnection.setHostnameVerifier(DO_NOT_VERIFY);
                httpURLConnection.setRequestMethod("POST");
                httpURLConnection
                        .setRequestProperty("Connection", "keep-alive");
                httpURLConnection
                        .setRequestProperty("Content-Type", "text/xml");
                httpURLConnection.setRequestProperty("SendChunked", "True");
                httpURLConnection.setRequestProperty("UseCookieContainer",
                        "True");
                HttpURLConnection.setFollowRedirects(false);
                httpURLConnection.setDoOutput(true);
                httpURLConnection.setDoInput(true);
                httpURLConnection.setUseCaches(true);
                httpURLConnection.setRequestProperty("Content-length",
                        getReqData().length + "");
                httpURLConnection.setReadTimeout(10 * 1000);
                // httpURLConnection.setConnectTimeout(10 * 1000);
                httpURLConnection.connect();

                out = httpURLConnection.getOutputStream();

                if (out != null) {
                    out.write(getReqData());
                    out.flush();
                }

                if (httpURLConnection != null) {
                    respCode = httpURLConnection.getResponseCode();
                    Log.e("respCode", ":" + respCode);

                }
            } while (respCode == -1);

            // If it works fine
            if (respCode == 200) {
                try {
                    InputStream responce = httpURLConnection.getInputStream();
                    String str = convertStreamToString(responce);
                    System.out.println(".....data....." + new String(str));

                    // String str
                    // =Environment.getExternalStorageDirectory().getAbsolutePath()+"/sunilwebservice.txt";
                    // File f = new File(str);
                    //
                    // try{
                    // f.createNewFile();
                    // FileOutputStream fo = new FileOutputStream(f);
                    // fo.write(b);
                    // fo.close();
                    // }catch(Exception ex){
                    // ex.printStackTrace();
                    // }
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
            } else {
                isSuccess = false;
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (out != null) {
                out = null;
            }
            if (httpURLConnection != null) {
                httpURLConnection.disconnect();
                httpURLConnection = null;
            }
        }
        return isSuccess;
    }

    public static String createSoapHeader() {
        String soapHeader = null;

        soapHeader = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
                + "<soap:Envelope "
                + "xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\""
                + " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
                + " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"" + ">";
        return soapHeader;
    }

    public static byte[] getReqData() {
        StringBuilder requestData = new StringBuilder();

        requestData.append(createSoapHeader());
        requestData
                .append("<soap:Body>"
                        + "<getAccessNumbers"
                        + " xmlns=\"http://service.xyz.com.com/\""

                        + "</getAccessNumbers> </soap:Body> </soap:Envelope>");

        return requestData.toString().trim().getBytes();
    }

    private static String convertStreamToString(InputStream is)
            throws UnsupportedEncodingException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(is,
                "UTF-8"));
        StringBuilder sb = new StringBuilder();
        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();

    }

回答2:

hi here is good example to implement SOAP .

I have used this and perfectly work for me. you can download ksoap2-android-assembly-2.4-jar-with-dependencies.jar lib from here.

here is my code snippet....

    String NAMESPACE = "http://www.namespace.com/";
    String METHOD_NAME = "login";
    String SOAP_ACTION = "http://www.namespace.com/loginRequest";
    String URL = "http://www.domainname.com:8080/AccessWEbService?wsdl";

    SoapObject loginRequest = new SoapObject(NAMESPACE, METHOD_NAME);
    SoapObject inLoginDto = new SoapObject(NAMESPACE, "LoginDetail");

    inLoginDto.addAttribute("username", "");
    inLoginDto.addProperty("username", etUserName.getText().toString());
    inLoginDto.addProperty("password", etPassword.getText().toString());

    loginRequest.addProperty("loginDetails", inLoginDto);

    Log.e("Soap Request : ", "" + loginRequest);

    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.setOutputSoapObject(loginRequest);

    AndroidHttpTransport androidHttpTransport = new AndroidHttpTransport(URL);
    try {
        androidHttpTransport.call(SOAP_ACTION, envelope);
        SoapObject response = (SoapObject) envelope.getResponse();

        Boolean loginStatus = Boolean.getBoolean(response.getProperty("success").toString());
    } 
    catch (Exception e) {
        Log.e("Exception ", "" + e);
    }

try it if can help you...