N-JOY N-JOY - 4 months ago 32
Android Question

How to POST data in Android to server in JSON format?

I have this JSON string. I want to POST it to the server (i.e. using the POST method). How can this be done in Android?

JSON string:

{
"clientId": "ID:1234-1234",
"device": {
"userAgent": "myUA",
"capabilities": {
"sms": true,
"data": true,
"gps": true,
"keyValue": {
"Key2": "MyValue2",
"Key1": "myvalue1"
}
},
"screen": {
"width": 45,
"height": 32
},
"keyValue": {
"DevcKey2": "myValue2",
"DevcKey1": "myValue1"
}
},
"time": 1294617435368
}


How can I form this JSON array and POST it to the server?

Answer

I did it myself.

JSONObject returnedJObject= new JSONObject();
JSONObject KeyvalspairJObject=new JSONObject ();
JSONObject devcKeyvalspairJObject=new JSONObject ();
JSONObject capabilityJObject=new JSONObject();
JSONObject ScreenDimensionsJObject =new JSONObject();
JSONObject deviceJObject= new JSONObject();
try{
    KeyvalspairJObject.put("key1","val1");
    KeyvalspairJObject.put("key2","val2");
    capabilityJObject.put("sms", false);
    capabilityJObject.put("data", true);
    capabilityJObject.put("gps", true);
    capabilityJObject.put("wifi", true);
    capabilityJObject.put("keyValue", KeyvalspairJObject);
    ScreenDimensionsJObject.put("width", 45);
    ScreenDimensionsJObject.put("height", 45);
    devcKeyvalspairJObject.put("Devckey1","val1");
    devcKeyvalspairJObject.put("DEVCkey2","val2");
    deviceJObject.put("userAgent", "MYUserAgent");
    deviceJObject.put("capabilities", capabilityJObject);
    deviceJObject.put("screen", ScreenDimensionsJObject);
    deviceJObject.put("keyValue", devcKeyvalspairJObject);

    returnedJObject.put("clientId", "ID:1234-1234");
    returnedJObject.put("carrier","TMobile");
    returnedJObject.put("device",deviceJObject);
    returnedJObject.put("time",1294617435);
    returnedJObject.put("msisdn","1234567890");
    returnedJObject.put("timezone","GMT");
}
catch(JSONException e)
{
}

and this is how we can send JSON data to server.

public String putDataToServer(String url,JSONObject returnedJObject) throws Throwable
{
    HttpPost request = new HttpPost(url);
    JSONStringer json = new JSONStringer();
    StringBuilder sb=new StringBuilder();


    if (returnedJObject!=null) 
    {
        Iterator<String> itKeys = returnedJObject.keys();
        if(itKeys.hasNext())
            json.object();
        while (itKeys.hasNext()) 
        {
            String k=itKeys.next();
            json.key(k).value(returnedJObject.get(k));
            Log.e("keys "+k,"value "+returnedJObject.get(k).toString());
        }             
    }
    json.endObject();


    StringEntity entity = new StringEntity(json.toString());
                         entity.setContentType("application/json;charset=UTF-8");
    entity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json;charset=UTF-8"));
    request.setHeader("Accept", "application/json");
    request.setEntity(entity); 

    HttpResponse response =null;
    DefaultHttpClient httpClient = new DefaultHttpClient();

    HttpConnectionParams.setSoTimeout(httpClient.getParams(), Constants.ANDROID_CONNECTION_TIMEOUT*1000); 
    HttpConnectionParams.setConnectionTimeout(httpClient.getParams(),Constants.ANDROID_CONNECTION_TIMEOUT*1000); 
    try{
        response = httpClient.execute(request); 
    }
    catch(SocketException se)
    {
        Log.e("SocketException", se+"");
        throw se;
    }
    InputStream in = response.getEntity().getContent();
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    String line = null;
    while((line = reader.readLine()) != null){
        sb.append(line);
    }
    return sb.toString();
}