HttpUrlConnection returns -1 status code

Question

I have problem with connecting to my server. Following code returns -1 as response code and null as response message.

  protected Boolean doInBackground(MyTaskParams... params) {
    URL url = null;
    String load = params[0].jobj.toString();
    try {
        url = new URL(params[0].serverUrl);
    } catch (MalformedURLException e) {
        e.printStackTrace();
    }
    try {
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

        urlConnection.setConnectTimeout(3000);
        urlConnection.setReadTimeout(3000);
        urlConnection.setRequestMethod("POST");
        urlConnection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
        urlConnection.setChunkedStreamingMode(0);
        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        urlConnection.connect();

        OutputStreamWriter osw = new OutputStreamWriter(urlConnection.getOutputStream());
        osw.write(load);
        osw.flush();
        osw.close();

        if(urlConnection.getResponseCode()==200 && urlConnection.getResponseMessage().contains("true") ) return true;
        else return false;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return false;
}

While debbuging url and body content (which is load in code) are correct. When I try to connect with the server using those params with Fiddler it works perfectly and I get 200 status code. Do you have any ideas what is wrong?

Im passing jData object as the jobj:

        JSONObject User=new JSONObject();
        JSONObject Mobile=new JSONObject();
        JSONObject jData=new JSONObject();
        try {
            User.put ("UserLogin", "test");
            User.put ("UserPassword", "test");
            Mobile.put ("MobileIDD", IDD);
            Mobile.put("MobileToken", token);
            jData.put("Mobile", Mobile);
            jData.put("User", User);
        } catch (JSONException e) {
            e.printStackTrace();
        }

@EDIT Solution with System.setProperty("http.keepAlive", "false") didnt help.

Add the code where you determine the response code and the respinse message and the returned page. Show `load` type. Maybe you should show `load` content. — greenapps, Feb 19 '16 at 16:05
Please put all code in one code block in the right sequence. You did not show code to read the returned page yet. — greenapps, Feb 19 '16 at 16:18
Done. Im checking status code of response message after osw.close(). — laik, Feb 19 '16 at 16:22
Did you say that urlConnection.getResponseMessage() returns null? If so then the .contains() call would provoke a NullPointerException. — greenapps, Feb 19 '16 at 16:24
Possible duplicate of [Android Https Status code -1](http://stackoverflow.com/questions/7994073/android-https-status-code-1) — Gueorgui Obregon, Feb 19 '16 at 16:29
Well, it doesn't. [link]http://puu.sh/ndNdl/915ec81f60.png The solution with Keep alive doesnt help. — laik, Feb 19 '16 at 16:29
Look for this answer http://stackoverflow.com/a/7994180/4848308 — Gueorgui Obregon, Feb 19 '16 at 16:29
I have answered your question. I said getResponseMessage returns null and I attached a screenshot from debugging. I dont get any nullpointerexception anyway. — laik, Feb 19 '16 at 22:33
`If so then the .contains() call would provoke a NullPointerException`. This still is the case. If you dont get a NullPointerException then urlConnection.getResponseMessage() is not null as you said it is. It would be equal to calling `null.contains()`. — greenapps, Feb 20 '16 at 10:19
Ok. The exception is not there indeed as that is for code 200. Sorry for the confusion. — greenapps, Feb 20 '16 at 10:26
And it is time you tell about your server. And what the server gets from your post. — greenapps, Feb 20 '16 at 10:29

score 0 · Accepted Answer · answered Feb 20 '16 at 13:29

I solved the problem. It was in this line:

if(urlConnection.getResponseCode()==200 && urlConnection.getResponseMessage().contains("true") ) return true;

When I changed it to:

int code = urlConnection.getResponseCode();
if (code==200.....)

It started working.

HttpUrlConnection returns -1 status code

1 Answers1