How to connect Android with HTTPsURLConnection - json

Question

I've been trying to figure the code out for quite a while now, however have had no success. Everytime the App crashes by throwing some random exception.
I learnt this code off a tutorial on youtube and despite that, the code doesn't work for me.
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import org.w3c.dom.Text;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.Buffer;
import javax.net.ssl.HttpsURLConnection;
public class MainActivity extends AppCompatActivity {
Button b1;
TextView t1;
private Context context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.bthhit);
t1=(TextView)findViewById(R.id.tvJSONitem);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
new JSONTask().execute("http://jsonparsing.parseapp.com/jsonData/moviesDemoItem.txt");
}
});
}
public class JSONTask extends AsyncTask<String,String,String>{
HttpsURLConnection connection = null;
BufferedReader reader = null;
#Override
protected String doInBackground(String... params) {
try {
URL url=new URL(params[0]);
connection= (HttpsURLConnection)url.openConnection();
connection.connect();
InputStream stream= connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
String line;
StringBuffer buffer= new StringBuffer();
while((line=reader.readLine())!=null){
buffer.append(line);
}
return buffer.toString();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(connection!=null) {
connection.disconnect();
}
try {
if(reader!=null){
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
t1.setText(result);
}
}
}
Logcat shows this:
01-05 00:46:09.018 5573-5580/? E/art: Failed sending reply to debugger: Broken pipe
01-05 00:46:17.852 5573-5706/com.example.test.jsonparser E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
Process: com.example.test.jsonparser, PID: 5573
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.ClassCastException: com.android.okhttp.internal.huc.HttpURLConnectionImpl cannot be cast to javax.net.ssl.HttpsURLConnection
at com.example.test.jsonparser.MainActivity$JSONTask.doInBackground(MainActivity.java:58)
at com.example.test.jsonparser.MainActivity$JSONTask.doInBackground(MainActivity.java:49)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
at java.lang.Thread.run(Thread.java:818) 
01-05 00:46:19.104 5573-5587/com.example.test.jsonparser E/Surface: getSlotFromBufferLocked: unknown buffer: 0xab792110

Answer 1

Please note that your URL protocol is HTTP and not HTTPS. Try either using a java.net.HttpURLConnection object or a "https://..." URL.

Answer 2

If some specific methods like .getResponseCode() or,... are not needed in your app, then you can use the generic URLConnection class as well, which will refrain from introducing this kind of exceptions, since it is the parent class for both HttpURLConnection and Https... classes somehow.