Getting data from a server with BasicValuePairName? - php

Question

I'm using a JSONParser class to create JSON to be sended to the server, but I need to use it for receive information now, but I don't know how to do it, I'm a noob, sorry. I create the json with the next part of code, and the following class.
// Building Parameters
params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("userid", thought.getUser()));
params.add(new BasicNameValuePair("timestamp", "" + thought.getTimestamp()));
params.add(new BasicNameValuePair("message", thought.getMessage()));
params.add(new BasicNameValuePair("address", thought.getAddress()));
params.add(new BasicNameValuePair("latitude", "" + thought.getLatitude()));
params.add(new BasicNameValuePair("longitude", "" + thought.getLongitude()));
// getting JSON Object
// Note that create product url accepts POST method
JSONParser jsonParser = new JSONParser();
JSONObject json = jsonParser.makeHttpRequest(url_create_thought, "POST", params);
JSONParser.class
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method, List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method.equalsIgnoreCase("POST")){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method.equalsIgnoreCase("GET")){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
The part in the server I think that it's ok.
Server get values part
<?php
/*
* Following code will list all the products
*/
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// get all products from products table
$result = mysql_query("SELECT * FROM thoughts") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0) {
// looping through all results
// products node
$response["thoughts"] = array();
echo '<center><div class="datagrid"><table>';
echo '<thead><tr><th>ID</th><th>USERID</th><th>TIMESTAMP</th><th>MESSAGE</th><th>ADDRESS</th><th>LATITUDE</th><th>LONGITUDE</th></tr></thead><tbody>';
while ($row = mysql_fetch_array($result)) {
// temp user array
$thought = array();
$thought["id"] = $row["id"];
$thought["userid"] = $row["userid"];
$thought["timestamp"] = $row["timestamp"];
$thought["message"] = $row["message"];
$thought["address"] = $row["address"];
$thought["latitude"] = $row['latitude'];
$thought["longitude"] = $row['longitude'];
echo '<tr><td>'.$row['id'].'</td><td>'.$row['userid'].'</td><td>'.$row['timestamp'].'</td><td>'.$row['message'].'</td><td>'.$row['address'].'</td><td>'.$row['latitude'].'</td><td>'.$row['longitude'].'</td></tr>';
// push single product into final response array
array_push($response["thoughts"], $thought);
}
// success
$response["success"] = 1;
// echoing JSON response
//echo json_encode($response);
echo '</table></center>';
} else {
// no products found
$response["success"] = 0;
$response["message"] = "No events found";
// echo no users JSON
echo json_encode($response);
}
?>
What it's the correct way to get data in android?? What I need to put in params?
JSONParser jsonParser = new JSONParser();
JSONObject json = jsonParser.makeHttpRequest(url_create_thought, **"GET"**, params);
Thanks for your help.

Answer 1

here is a simple way to get what u want from json-return url :
String sURL = "http://freegeoip.net/json/"; //just a string
// Connect to the URL using java's native library
URL url = new URL(sURL);
HttpURLConnection request = (HttpURLConnection) url.openConnection();
request.connect();
// Convert to a JSON object to print data
JsonParser jp = new JsonParser(); //from gson
JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent())); //convert the input stream to a json element
JsonObject rootobj = root.getAsJsonObject(); //may be an array, may be an object.
zipcode=rootobj.get("zipcode").getAsString();//just grab the zipcode