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androidjsonandroid-asynctaskhttpclientfuturetask

Fatal Exception AsyncTask #1 at doInBackground()

I am newbie on Android and I am developing an app that gets some information from a QR code and then connects a php page. However app crushes after it reads QR code and logCat gives a Fatal Exception AsyncTask #1 when I run it.

Here is the doInBackground() codes:

class CreateNewProduct extends AsyncTask<String, String, String>
    { 
        protected String doInBackground(String... args)
        {
            String tc= new String();
            tc= "3123";

            String no = new String();
            no = "3";

            /*String tcKimlik = "3123";
            String hatNo = "3";*/

            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("tc", tc));
            params.add(new BasicNameValuePair("no", no ));

            JSONObject json = jsonParser.makeHttpRequest(url_create_product, "POST", params);

            try
            {
                int success = json.getInt(TAG_SUCCESS);

                if (success == 1)
                {

                    //qrCodeText.setText("DONE!");
                }
                else
                {
                    //qrCodeText.setText("Nope...");
                }
            }
            catch (JSONException e)
            {
                e.printStackTrace();
            }

            return null;
        }

    } // End of CreateNewProduct

CreateNewProduct is in another class that reads QR codes and I call it like new CreateNewProduct().execute(); after Qr code is read.

And here is LogCat:

UPDATE:

After I added http:// and made setTexT() as comment, JSON error was added to LogCat:

05-16 01:00:08.900: E/JSON Parser(11835): Error parsing data org.json.JSONException: Value <!DOCTYPE of type java.lang.String cannot be converted to JSONObject

05-16 01:00:08.900: W/dalvikvm(11835): threadid=14: thread exiting with uncaught exception (group=0x410572a0)
05-16 01:00:08.910: E/AndroidRuntime(11835): FATAL EXCEPTION: AsyncTask #1
05-16 01:00:08.910: E/AndroidRuntime(11835): java.lang.RuntimeException: An error occured while executing doInBackground()
05-16 01:00:08.910: E/AndroidRuntime(11835):    at android.os.AsyncTask$3.done(AsyncTask.java:299)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.lang.Thread.run(Thread.java:856)
05-16 01:00:08.910: E/AndroidRuntime(11835): Caused by: java.lang.NullPointerException
05-16 01:00:08.910: E/AndroidRuntime(11835):    at com.example.yoritreader.MainActivity$CreateNewProduct.doInBackground(MainActivity.java:442)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at com.example.yoritreader.MainActivity$CreateNewProduct.doInBackground(MainActivity.java:1)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
05-16 01:00:08.910: E/AndroidRuntime(11835):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
05-16 01:00:08.910: E/AndroidRuntime(11835):    ... 5 more

Thank you for your help!

Solution

  • The error was solved removing <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> from php file.