HTTP request: destination server could not respond

Question

Hey, I want to create a simple Android application to love the last track. I get a song from user.getRecentTrack and send the data and session key to my method, but there is an error: "The target server could not respond." Sometimes error 3 from the lastfm: track.love method also occurs: "Invalid Method - there is no method with this name in this package." This is my Http request for track.love

HttpClient client = new DefaultHttpClient(); 
String postURL = "http://ws.audioscrobbler.com/2.0/";;
HttpPost post = new HttpPost(postURL); 
List<NameValuePair> params = new ArrayList<NameValuePair>(2);
String signatur = makeTrackLoveSignatur(artist, title, key);
params.add(new BasicNameValuePair("method", "track.love"));
params.add(new BasicNameValuePair("track", title));
params.add(new BasicNameValuePair("artist", artist));
params.add(new BasicNameValuePair("api_key", api_key));
params.add(new BasicNameValuePair("api_sig", signatur));
params.add(new BasicNameValuePair("sk", key));
params.add(new BasicNameValuePair("format", "json"));

UrlEncodedFormEntity ent = 
new UrlEncodedFormEntity(params,HTTP.UTF_8);
post.setEntity(ent);

HttpResponse responsePOST = client.execute(post); 
InputStream data = responsePOST.getEntity().getContent();

I also implemented the conversion of the InputStream method to String:

BufferedReader reader = new BufferedReader(
                new InputStreamReader(stream));
        StringBuilder sb = new StringBuilder();

        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
            stream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("Output"+sb.toString());
        return sb.toString();

What is the problem? Thank...

Answer 1

Try adding the Content-type header:

post.addHeader("Content-type", "application/x-www-form-urlencoded");

Here's a similar question in python .

Answer 2

XML, JSON? -.