Android: Checking HTTP response code: getting 200; should be 302

Question

I am checking a website for 302 messages, but I keep receiving 200 in my code:

private class Checker extends AsyncTask<Integer,Void,Integer>{
    protected void onPreExecute(){
        super.onPreExecute();
        //display progressdialog.
    }

    protected Integer doInBackground(Integer ...code){
        try {
            URL u = new URL ( "http://www.reddit.com/r/notarealurlinredditqwerty");
            HttpURLConnection huc =  (HttpURLConnection) u.openConnection();
            huc.setRequestMethod("POST");
            HttpURLConnection.setFollowRedirects(true);
            huc.connect();
            code[0] = huc.getResponseCode();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return code[0];
    }

    protected void onPostExecute(Integer result){
        super.onPostExecute(result);
        //dismiss progressdialog.
    }
}

That is my Async task for checking. Here is the code implementing it:

int code = -1;
Checker checker = new Checker();
try {
    code = checker.execute(code).get();
} catch (InterruptedException e) {
    e.printStackTrace();
} catch (ExecutionException e) {
    e.printStackTrace();
}
Log.d("code:", "" + code);

That log always returns 200, but I know that URL is 302 (it redirects to a search page on reddit.com). What am I doing wrong?

http://android-spirit.blogspot.in/2013/08/cosume-phppost-method-webservice-in.html watch this — Nirmal, Sep 26 '13 at 05:20
It's not 302 it 404 - the page doesn't exist! but then reddit redirects you to a valid "404" page that's why you get 200 I guess. — Nir Alfasi, Sep 26 '13 at 05:20
@alfasin Actually, it is 302 because it redirects to a search page automatically. Still, why is this giving me 200 (OK)? That should definitely not happen. — Eric Cochran, Sep 26 '13 at 05:23
It shows the result HTTP code of the last page you reached which is 200 — Nir Alfasi, Sep 26 '13 at 05:24
You're following the redirect - so your code will get a 302, follow it, then return the status code of the first page that doesn't send a redirect. — Sam Dufel, Sep 26 '13 at 05:27
@SamDufel How do I do that? Can you post the code in an answer? Is there any way not to follow the redirect? — Eric Cochran, Sep 26 '13 at 05:34
@NightlyNexus why `get()` in this `checker.execute(code).get()`. you should not use get() which does not make asynctask asynchronous — Raghunandan, Sep 26 '13 at 05:35
@Raghunandan I am trying to return a value from the AysncTask. I thought that was the best way. Correct me if I am wrong, though. — Eric Cochran, Sep 26 '13 at 05:37
@NightlyNexus you are wrong. Use a interface or make your asynctask an inner class of your activity class and then access data in `onPostExecute`. `get` will block the ui thread untill result is returned which you should not do. — Raghunandan, Sep 26 '13 at 05:38
@Raghunandan Ah, thank you. That is much better. Now, just have to figure out why this is still getting a code of 200. — Eric Cochran, Sep 26 '13 at 05:42
In httpclient you need to do the following: http://stackoverflow.com/a/1519487/1892046 . Don't know if it works for HttpUrlConnection though... — Bas, Nov 21 '14 at 18:26

score 0 · Answer 1 · answered Sep 26 '13 at 05:38

0

This line just needs to be set to false:

HttpURLConnection.setFollowRedirects(false);

answered Sep 26 '13 at 05:38

Sam Dufel

17,560
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Still getting 200. (added right above huc.setRequestMethod("POST");) – Eric Cochran Sep 26 '13 at 05:40
@AlexMDC Oh, I should have clarified: I removed that line under it. It only sets it to false-- still getting 200. – Eric Cochran Sep 26 '13 at 09:35

score 0 · Answer 2 · answered Jan 07 '21 at 21:20

You can use HttpURLConnection. I have used it for response code in a few applications. I did not encounter any problems.

URL url = new URL("http://yoururl.com");
HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
int code = connection.getResponseCode();

Android: Checking HTTP response code: getting 200; should be 302

2 Answers2