Unable to pass the values to json Object.

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Mobile

Android

WCFServices

hello friends,

here i want to pass the values to json object, but here im getting an error,please rectify it. which iam going to pass the values to services.

below code

public class MainActivity extends ActionBarActivity {


    EditText e1, e2;

    Button b1;
    HttpClient client;
    String url = "http://localhost:52455/bloodservice/Service.svc";
    JSONObject json;
    final Context context = this;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        b1 = (Button) findViewById(R.id.button);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)  {


                e1 = (EditText) findViewById(R.id.editText);
                e2 = (EditText) findViewById(R.id.editText2);
                String t1 = e1.getText().toString();
                String t2 = e2.getText().toString();
                
                HttpClient client = new DefaultHttpClient();
                HttpResponse response;
                JSONObject json = new JSONObject();

                HttpPost post = new HttpPost(url);
                json.put("userName",t1); //HERE IM GETTING ERROR UNHANDLED EXCEPTION org.json,JSONException
                json.put("userPassword", t2);//HERE IM GETTING ERROR UNHANDLED EXCEPTION org.json,JSONException
                StringEntity se=null;
                try {
                    se = new StringEntity(json.toString());
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                se.setContentType("application/json;charset=UTF-8");
                se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE,"application/json"));
                post.setEntity(se);
                response = Client.execute(post);//HERE IM GETTING ERROR UNHANDLED EXCEPTION org.apache.http.client.ClientProtocolException.