error while Creating REST client in android

Question

1) implement web service in netbeans with json which fetch data from MySQL database

2) create rest client in android to call web service

Edited code

my manifest file

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <uses-permission android:name="android.permission.INTERNET"/>
        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

jsonParse.java

package android.project.srt.demojson;

public class JsonParser {

 static InputStream is = null;
static JSONObject jObj = null;
static String json = "";

// constructor
public JsonParser() {
}

public String getJSONFromUrl(String url) {
    // Making HTTP request
    try {
        HttpGet get = new HttpGet(url);
        HttpClient client = new DefaultHttpClient();
        HttpResponse response = client.execute(get);
        HttpEntity entity = response.getEntity();

        InputStream inputStream=entity.getContent();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream),8 * 1024);

        String line=null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
    inputStream.close();
    } catch (UnsupportedEncodingException e) {
        Log.e("unsupported ","encoding exception" +e.getMessage());
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        Log.e("clientprotocolexception ","" + e.getMessage());
        e.printStackTrace();
    } catch (IOException e) {
        Log.e("io","Exception " + e.getMessage());
        e.printStackTrace();
    }

    return sb.toString();
}
}

MainActivity.java

public class MainActivity extends ActionBarActivity {

private static String url = "http://192.168.1.31:8084/adminWebservice/mywebservice/SelectRestroTypes";
String categoryname;
TextView tv1;

@Override
protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    tv1 = (TextView) findViewById(R.id.textView1);

    //new JSONParse().execute();

    pDialog = new ProgressDialog(MainActivity.this);
    pDialog.setMessage("Loading Data ...");
    pDialog.setIndeterminate(false);
    pDialog.setCancelable(true);
    pDialog.show();
    tv1.setText("Getting Values Pls wait..");

    JsonParser jParser = new JsonParser();
    // Getting JSON from URL
//    JSONObject json = jParser.getJSONFromUrl(url);

    String jsonString=jParser.getJSONFromUrl(url);
    tv1.setText(jsonString);
}    
}

logcat shows this only error :

03-24 19:11:20.914  30629-30629/android.project.srt.demojson E/ViewRootImpl﹕ sendUserActionEvent() mView == null

any suggestions regarding creating json client in android are welcome

thanks in advance for help

is not related with your code but a general advice, you should use Retrofit to have a nice REST API in your android app. It's powerfull, well-tested, and straight forward. http://square.github.io/retrofit/ — Hugo Gresse, Mar 24 '15 at 09:19
are you blind? `...http://localhost:8084 refused...` or you have a problems with reading? is the server on device/emulator? — Selvin, Mar 24 '15 at 09:30
Look at my code @Selvin , In main activity.java i have used url this "192.168.1.31:8084/adminWebservice/mywebservice/... " not localhost — Shruti, Mar 24 '15 at 13:30
look at the logcat logs ... re-build and re-install the app on the device/emulator — Selvin, Mar 24 '15 at 13:32

score 0 · Answer 1 · answered Mar 24 '15 at 09:43

0

Seems like this is your problem

Exception Connection to http://localhost:8084 refused

answered Mar 24 '15 at 09:43

Sameer Acharya

1
1

The url should point to the server address where your webservices are running instead of localhost also the port 8084 should be open if there is a firewall inbetween. – Sameer Acharya Mar 24 '15 at 11:58
look at my code my URL in MainActivity.java is : "http://192.168.1.31:8084/adminWebservice/mywebservice/SelectRestroTypes" – Shruti Mar 24 '15 at 12:33
I dont see the old error now seems like you have edited the question, the error seen now is different, have you tried searching the web I see a lot of links with this issue [link]http://stackoverflow.com/questions/18028666/senduseractionevent-is-null – Sameer Acharya Mar 25 '15 at 09:15
ok got it, cos I run the app in samsung s3 , and its a bug , thanks @Sameer – Shruti Mar 25 '15 at 12:45

error while Creating REST client in android

1 Answers1