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Issue with Retrieving JSON from Webpage Android

So I'm facing some difficulty in trying to, what seems simply, obtain a JSON file from a webpage, and then parse it on Android. I have already built the parser, and tested it in Eclipse (in fact, all of the code works in Eclipse). However, when I run the HttpURLConnection and try to retrieve the JSON data in a string in Android Studio, I end up getting no exceptions and an almost empty string (I think I am getting the 1st, 2nd, 3rd, and last character, but not too sure). I have included parts of the code below, and
URL url = null;
HttpURLConnection urc = null;
try {
url = new URL(query);
urc = (HttpURLConnection) url.openConnection();
InputStream in = new BufferedInputStream(urc.getInputStream());
jsoncontent = readStream(in);
System.out.println(jsoncontent);
} catch (MalformedURLException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
urc.disconnect();
}
The code for readStream() is below
private static String readStream(InputStream is) throws IOException {
StringBuilder sb = new StringBuilder();
BufferedReader r = new BufferedReader(new InputStreamReader(is),1000);
for (String line = r.readLine(); line != null; line =r.readLine()){
sb.append(line);
}
is.close();
return sb.toString();
}

Here is an exact chunk from an assignment I did last semester:
URL u = new URL(url);
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "text/html");
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
JSONObject searchResults = new JSONObject(in.readLine());
...
conn.disconnect();
You seem to be missing setRequestMethod("GET") and setRequestProperty("Accept", "text/html") in your code. Hope this helps.

String cannot be converted to JSON - Android

I have am trying to convert my response from a POST to JSON. And here is what I am doing:
InputStream is = connection.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line;
StringBuilder response = new StringBuilder();
while((line = rd.readLine()) != null) {
response.append(line).append("\r");
}
rd.close();
Log.i(TAG, response.toString());
JSONObject jsonObject = new JSONObject(response.toString());
But then I get error java.lang.String cannot be converted to JSONObject
But if I make a string, String string; and then I paste the what I logged and set it equal to string, and then try
JSONObject jsonObject = new JSONObject(string);
It works, so why is it working when I paste the logged response, but not when I just use response.toString();?
In the logcat it looks like this {"url": "www.google.com"}. And then when I paste it into string = "{\"url\": \"www.google.com\"}";
Thanks for the help

I met this problem before, try this:
new JSONObject(json.substring(json.indexOf("{"), json.lastIndexOf("}") + 1));
or
if (response != null && response.startsWith("\ufeff")) {
in = in.substring(1);
}
the response from server contains a BOM header

public JSONObject(java.lang.String source)
throws JSONException
Construct a JSONObject from a source JSON text string.
source - A string beginning with { (left brace) and ending with } (right brace).
So while doing response.toString() if the string do not start with { and close with } then it will throw Exception.

reCaptcha response is blank

I have implemented reCaptcha in the application I am working on. Somehow I am getting a blank reCaptcha response.
It works fine with localhost, but I am having a problem in upper environments like DEV, TEST. User response is being verified on server side (servlet).
Anyone having idea or faced similar problem ? Let me know if you need more info.
String userresponse = (String) request.getAttribute("g-recaptcha-response");
URL url = null;
HttpURLConnection conn = null;
String line, outputString = "";
try {
url = new URL(https://www.google.com/recaptcha/api/siteverify?secret=privateKey&response=userresponse);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
BufferedReader reader = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
while ((line = reader.readLine()) != null) {
outputString += line;
}
Log.debug("Google response is :- "+outputString);
} catch (IOException e) {
e.printStackTrace();
}

java servlet http url request

When I run this code from Java app I get correct response (UTF-8 encoded).
The problem is, when I run it from my servlet, I'm geting:
"פשטות הי� התחכו� המושל�"
ל×�×•× ×¨×“×• די סר פיירו דה ×•×™× ×¦'×™
Any idea how to fix it?
URL url;
HttpURLConnection conn;
BufferedReader rd;
String line;
String result = "";
try {
url=new URL("http://www.walla.co.il");
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuffer sb = new StringBuffer("");
String s1="";
String NL = System.getProperty("line.separator");
while ((s1 = rd.readLine()) != null)
sb.append(s1+NL);
System.out.println(sb);
rd.close();
return sb.toString();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return "";

set "JAVA_OPTS=%JAVA_OPTS% -Dfile.encoding=UTF8"
i run this from *.bat file in my tomcat\bin
and it fix the problem seems like i had to set the encode for tomcat/jvm
not 100% sure but it works now :)

How to escape the NÃO while reading the URL

InputStream in = address.openStream();
URL url = new URL("://www.mydomain.com/?param1=NÃO&param2=NÃO");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder result = new StringBuilder();
String line;
while((line = reader.readLine()) != null) {
result.append(line);
}
System.out.println(result.toString());
But when i am trying to put the result into StringBuilder the NÃO Special character à is getting escaped
How to bring it with out losing the char set value ?

I believe you want to use URLEncoder.encode(String, String) to encode your parameter like
try {
String value = URLEncoder.encode("NÃO", "utf-8");
String url = "://www.mydomain.com/?param1=" + value + "&param2="
+ value;
System.out.println(url);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Output is
://www.mydomain.com/?param1=N%C3%83O&param2=N%C3%83O