I can't connect to my Redis database using the Jedis Java client in AndroidStudio

I am trying to establish a connection with Jedis (a Java client for the Redis database) in Android Studio and get a" stack " of errors. At first, my mistake was not to change AndroidManifest to give Internet permission. After this manipulation, I got android. os.NetworkOnMainThreadException. I tried to create a connection to Jedis in AsyncTask (not sure if I did it right) and got a" stack " of errors with "Caused by: android.system.ErrnoException: isConnected failed: ECONNREFUSED (Connection refused)" at the very bottom. I also tried to connect to Jedis in Eclipse with the same by the most "Jedis jedis = new Jedis("127.0.0.1", 6379);", everything worked perfectly. What should I change in the code to be able to connect to Jedis?

Code:

package com.samfoundation.samfoundation;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import redis.clients.jedis.Jedis;


public class MainActivity extends AppCompatActivity {
    Button click;
    TextView show;
    @Override


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        click = (Button)findViewById(R.id.button);
        show = (TextView)findViewById(R.id.textView);

        final Connection con = new Connection();
        con.execute();
        click.setOnClickListener(new View.OnClickListener() {
            @Override

            public void onClick(View v) {
                String message = con.doInBackground();
                show.setText(message);
            }
        });



    }
}
public class Connection extends AsyncTask<Void, Void, String> {
    @Override
    protected String doInBackground(Void... arg0) {
        Jedis jedis = new Jedis("127.0.0.1", 6379);
        String value = jedis.ping();

        return value;

    }

}

Logcat:

java.lang.RuntimeException: An error occurred while executing doInBackground()
        at android.os.AsyncTask$4.done(AsyncTask.java:399)
        at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
        at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
        at java.util.concurrent.FutureTask.run(FutureTask.java:271)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
     Caused by: redis.clients.jedis.exceptions.JedisConnectionException: Failed connecting to host 127.0.0.1:6379
        at redis.clients.jedis.Connection.connect(Connection.java:204)
        at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:100)
        at redis.clients.jedis.Connection.sendCommand(Connection.java:125)
        at redis.clients.jedis.Connection.sendCommand(Connection.java:120)
        at redis.clients.jedis.BinaryClient.ping(BinaryClient.java:113)
        at redis.clients.jedis.BinaryJedis.ping(BinaryJedis.java:188)
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:12)
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:8)
        at android.os.AsyncTask$3.call(AsyncTask.java:378)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:919) 
     Caused by: java.net.ConnectException: failed to connect to /127.0.0.1 (port 6379) from /127.0.0.1 (port 47956) after 1999ms: isConnected failed: ECONNREFUSED (Connection refused)
        at libcore.io.IoBridge.isConnected(IoBridge.java:288)
        at libcore.io.IoBridge.connectErrno(IoBridge.java:193)
        at libcore.io.IoBridge.connect(IoBridge.java:135)
        at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436)
        at java.net.Socket.connect(Socket.java:621)
        at redis.clients.jedis.Connection.connect(Connection.java:181)
        at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:100) 
        at redis.clients.jedis.Connection.sendCommand(Connection.java:125) 
        at redis.clients.jedis.Connection.sendCommand(Connection.java:120) 
        at redis.clients.jedis.BinaryClient.ping(BinaryClient.java:113) 
        at redis.clients.jedis.BinaryJedis.ping(BinaryJedis.java:188) 
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:12) 
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:8) 
        at android.os.AsyncTask$3.call(AsyncTask.java:378) 
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:919) 
     Caused by: android.system.ErrnoException: isConnected failed: ECONNREFUSED (Connection refused)
        at libcore.io.IoBridge.isConnected(IoBridge.java:275)
        at libcore.io.IoBridge.connectErrno(IoBridge.java:193) 
        at libcore.io.IoBridge.connect(IoBridge.java:135) 
        at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142) 
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390) 
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230) 
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212) 
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436) 
        at java.net.Socket.connect(Socket.java:621) 
        at redis.clients.jedis.Connection.connect(Connection.java:181) 
        at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:100) 
        at redis.clients.jedis.Connection.sendCommand(Connection.java:125) 
        at redis.clients.jedis.Connection.sendCommand(Connection.java:120) 
        at redis.clients.jedis.BinaryClient.ping(BinaryClient.java:113) 
        at redis.clients.jedis.BinaryJedis.ping(BinaryJedis.java:188) 
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:12) 
        at com.samfoundation.samfoundation.Connection.doInBackground(Connection.java:8) 
        at android.os.AsyncTask$3.call(AsyncTask.java:378) 
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:919)