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Android Build a Blog Reader Android App Getting Data from the Web Getting JSON Data from an HTTP Request

Posted by jerome sinpaseuth
jerome sinpaseuth
2,632 Points

HTTP_OK does not ring any bell to my httpURLconnection method

HTTP_OK does not ring any bell to my httpURLconnection method

16 Answers

Steve Hunter
Steve Hunter
57,712 Points

This is strange!

I'm wondering if you've got the wrong file imported. In your import list, do you have:

import java.net.HttpURLConnection;

EDIT - try deleting that line, then reimporting it by clicking inside the HttpURLConnection word and pressing the relevant buttons.

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

yep. thanks for the help

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Jerome,

Can you post your line of code please?

The code should look like:

if (responseCode == HttpURLConnection.HTTP_OK) {

The underscore is the only difference I can guess at from your question.

Steve.

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

sorry actually it does look like exactly that:

if(responseCode == HttpURLConnection.HTTP_OK){

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

seems that diffenrence is from the capital letter in Response code. But then i dont know what i should do with it.

Steve Hunter
Steve Hunter
57,712 Points

No - that was me being wrong ... edited!!

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Odd ... can you post the code in the doInBackground method.

Thanks.

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points 
protected JSONObject  doInBackground(Object...arg0) {

            int responseCode = -1;
            JSONObject jsonResponse= null;

            try{
                URL blogFeedUrL = new URL("http://www.hashtag-whistleblower.com/category/politics/?json=1" + NUMBER_OF_POSTS);
                HttpURLConnection connection = (HttpURLConnection) blogFeedUrL.openConnection();
                connection.connect();

                responseCode = connection.getResponseCode();

                if(ResponseCode == HttpURLConnection.HTTP_OK){
                    InputStream inputStream = connection.getInputStream();
                    Reader reader = new InputStreamReader(inputStream);
                    int contentLength = connection.getContentLength();
                    char[] charArray = new char [contentLength];
                    reader.read(charArray);
                    String responseData = new String(charArray);
                     jsonResponse = new JSONObject(responseData);

                }else{

                    Log.i(TAG,"UNsuccessful HTTP Response Code: " + responseCode);


                }
                Log.i(TAG,"code:"+responseCode);
            }
            catch(MalformedURLException e){
                logExeption(e);

            }
            catch( IOException e){

                logExeption(e);
            }
            catch (Exception e){
                logExeption(e);
            }
            return jsonResponse;
        }
Steve Hunter
Steve Hunter
57,712 Points

All seems fine there, except for the capital R which was probably my fault!!

Does this give you a compiler error at the if statement? What does that say?

Steve Hunter
Steve Hunter
57,712 Points

If you start typing HttpURLConnection. do you get a list of options to select from?

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

the compiler gives me "rename the reference" for: HTTP_OK

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

i mostly have: get() methods

but not HTTP_OK

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Yes, as I type the [dot] I get getDefaultAllowUserInteration() and getFileNameMap() etc.

But as soon as I type a capital H, I get a list of HTTP ints. What do you get?

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

capital H is red and no propositions from the compiler

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

when i start the app i get : Error:(123, 53) cannot find symbol variable HTTP_OK

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

well i actually do : import java.net.HttpURLConnection;

Steve Hunter
Steve Hunter
57,712 Points

Try deleing it, save, then see if the reimporting helps clear the error.

Try a project clean, and also try File | Invalidate Caches / Restart

That might help!

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

i guess i might have to.

Steve Hunter
Steve Hunter
57,712 Points

Should only take a couple of minutes. Delete the import line first, then fix the error with autocomplete.

If that doesn't work, clean the project then do the Invalidate Caches / Restart thing.

jerome sinpaseuth
jerome sinpaseuth
2,632 Points
jerome sinpaseuth
jerome sinpaseuth
2,632 Points

worked with: java.net.HttpURLConnection.HTTP_OK rather than HttpURLConnection.HTTP_OK

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Excellent!

We got there in the end!