Problem in posting json data from android

[Anuj Prashar]

Hi,

I have trouble posting json on a php server.

my code is -

								
JSONObject jsonObj = new JSONObject();
jsonObj.put("method", "abc");
jsonObj.put("event_id", "123");
jsonObj.put("device_id", "2323");
jsonObj.put("device_token", "12312312sdd");
jsonObj.put("session_id", "123");

HttpClient httpclient = new DefaultHttpClient();
String path = "http://myurl/file.php";

List<NameValuePair> nvp = new ArrayList<NameValuePair>(1);  
nvp.add(new BasicNameValuePair("json", jsonObj.toString()));
		    		        	        										
HttpPost httppost = new HttpPost(path);
httppost.setHeader("Content-type", "application/json");
httppost.setEntity(new UrlEncodedFormEntity(nvp));
HttpResponse response = httpclient.execute(httppost);	    			
	                                          	    		                    
/* response */
if (response != null) {
       InputStream in = response.getEntity().getContent();
	String str = convertStreamToString(in);
       Log.i("Response from Server "+response.getStatusLine().getStatusCode(), str);
	}

The status code from server is 200 but when i print response stream on logcat in eclipse i am getting undefined index message for method, event_id, device_id, device_token, session_id.

Notice: Undefined index: method in /mypath/file.php on line 17

INFO/Read from Server 200(493):

INFO/Read from Server 200(493): Notice: Undefined index: event_id in /mypath/file.php on line 18

INFO/Read from Server 200(493):
..............................................
..............................................................

What I am doing wrong ? Is this is because of server side php file or something wrong in java code?

Thanks

[Ulf Dittmer]

I don't see what this has to do with Android. Apparently the JSON that is being posted can't be handled by that PHP page. If this was my problem I'd create a Java desktop client application that gets this right before integrating it into an Android app; it's much easier to debug that way.

[Anuj Prashar]

Thanks for replying....

so the 'undefined index' problem is because of php page?

[Ulf Dittmer]

Not quite - it's because the PHP page is getting something other than what it can handle. Either the PHP code is incorrect, or the JSON is different than what the PHP code expects. We can't really speculate which one of these it is, but *you* can, since both the JSON and the PHP are under your control, and amenable to being changed by you.