Im trying to parse JSON and my code is not working with one URL and it works with other. I think its the coma in question but I did not sure so please look at my code and help. I tried to replace coma with dot in loop, but what i get is JSON Exception. And when I change the URL, there is no exception. Confusing… This is not working URL: http://api.hnb.hr/tecajn/v1 And this is one I tested and it works: https://newsapi.org/v2/top-headlines?country=us&category=business&apiKey=e402c76fc8584a1c81849179f1277a74 While changed the URL I also changed the data, so its not the problem in writing..I guess
Here is my code for coma replacement:
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new
InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
String coma = line.replaceFirst(",",".");
sb.append(coma).append('n');
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
And the other part with URL and JSONArray:
@Override
protected Void doInBackground(Void... arg0) {
URLconnection urlConn = new URLconnection();
// Making a request to url and getting response
String url = "http://api.hnb.hr/tecajn/v1";
//.........connection.........
String response = urlConn.makeServiceCall(url);
Log.e(TAG, "Response from url: " + response);
if (response != null) {
try {
JSONObject jsonObj = new JSONObject(response);
// Getting JSON Array node
arr = jsonObj.getJSONArray("values");
for (int i = 0; i < article.length(); i++) {
JSONObject c = arr.getJSONObject(i);
header = c.getString("Valuta");
}
} catch (final JSONException e) {
Log.e(TAG, "Json parsing error.");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Json parsing error: 216",
Toast.LENGTH_LONG).show();
}
});
}
Answer
Commas aren’t the issue. It’s the very first character. One is a square bracket and the other is a curly one.
You therefore need to parse the first response as an Array rather than an Object
new JSONArray(response);
That being said, you therefore cannot use the same methods for both URLs