How to get a response from the server in a POST request?

Question

Java

In general, my POST request is sent successfully, but how do I get a server response? In what format should you give an answer (just take the output from name.php, JSON or send everything in an xml file)?
Here is my code;

The code

package ru.steapу.client;
import android.app.Activity;
import android.os.Bundle;
import android.os.AsyncTask;
import android.view.View;
import android.widget.TextView;
import android.widget.EditText;
import android.widget.ProgressBar;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import android.widget.Toast;
public class LogActivity extends Activity
{
 String SERVER_URL = "сам сайт";
 EditText inputLogin, inputPass;
 ProgressBar pb;
 @Override
 protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  setContentView(R.layout.log);
  inputLogin = (EditText)findViewById(R.id.inputLogin);
  inputPass = (EditText)findViewById(R.id.inputPass);
  pb = (ProgressBar)findViewById(R.id.progressBar1);
  pb.setVisibility(View.GONE);
 }
 public void buttonLog(View v){
  if(inputLogin.getText().toString().length()<1){
   Toast.makeText(LogActivity.this,"Введите ваш логин",Toast.LENGTH_LONG).show();
  }
  else if(inputPass.getText().toString().length()<1){
   Toast.makeText(LogActivity.this,"Введите ваш пароль",Toast.LENGTH_LONG).show();
  }else{
   pb.setVisibility(View.VISIBLE);
   new MyAsyncTask().execute(inputLogin.getText().toString(), inputPass.getText().toString());
  }
 }
 private class MyAsyncTask extends AsyncTask<String, Integer, Double>{
  @Override
  protected Double doInBackground(String... params){
   HttpClient httpclient = new DefaultHttpClient();
   HttpPost httppost = new HttpPost(SERVER_URL);
   try{
    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);           
    nameValuePairs.add(new BasicNameValuePair("login", params[0]));
    nameValuePairs.add(new BasicNameValuePair("pass", params[1]));
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, HTTP.UTF_8));
    HttpResponse response = httpclient.execute(httppost);
   }catch(ClientProtocolException e){
    Toast.makeText(getBaseContext(),"Client Protocol Exception",Toast.LENGTH_SHORT).show();
   }catch(IOException e){
    Toast.makeText(getBaseContext(),"IO Exception",Toast.LENGTH_SHORT).show();
   }
   return null;
  }
  protected void onPostExecute(Double result){
   pb.setVisibility(View.GONE);
   Toast.makeText(getApplicationContext(),"Отправлено",Toast.LENGTH_LONG).show();
   inputLogin.setText("");
   inputPass.setText("");
  }
  protected void onProgressUpdate(Integer... progress){
   pb.setProgress(progress[0]);
  }
 }
}

As I understand it, the answer should be in the response, but how to get it from the stream?
PS Reading books is not destiny, I can not find a normal one for myself.

Answer 1

If you find it in a book, throw it away. This is a deprecated api.
On topic response.getEntity().getContent() will give you a response stream.
From my kindness:
Your activity is leaking through this asynctask (memory leak). Asynctasks are not for the network at all.
Take OkHttp, everything is easier and more beautiful there. If it's a Rest-like api, get Retrofit as well. Do not suffer.