Android สอบถามเรื่องการบันทึกตัวเลข ตรง rating ลง ฐานข้อมูล Mysql

package com.dedykuncoro.uthaitour.adapter;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.RatingBar;
import android.widget.TextView;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.NetworkImageView;
import com.dedykuncoro.uthaitour.R;
import com.dedykuncoro.uthaitour.app.AppController;
import com.dedykuncoro.uthaitour.module.Jarak;
import java.util.List;
import java.util.logging.Filter;
import java.util.logging.LogRecord;

/**
 * Created by Kuncoro on 03/29/2016.
 */
public class CustomListAdapter extends BaseAdapter {
    private Activity activity;
    private LayoutInflater inflater;
    private List<Jarak> jarakItems;
    ImageLoader imageLoader;

    public CustomListAdapter(Activity activity, List<Jarak> jarakItems, String url) {
        this.activity = activity;
        this.jarakItems = jarakItems;

    }


    @Override
    public int getCount() {
        return jarakItems.size();
    }

    @Override
    public Object getItem(int location) {
        return jarakItems.get(location);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        if (inflater == null)
            inflater = (LayoutInflater) activity
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        if (convertView == null)
            convertView = inflater.inflate(R.layout.list_row, null);

        if (imageLoader == null)
            imageLoader = AppController.getInstance().getImageLoader();
        NetworkImageView thumbNail = (NetworkImageView) convertView
                .findViewById(R.id.userPic);
        TextView userName = (TextView) convertView.findViewById(R.id.userName);
        userName.setSelected(true);

        TextView userTim = (TextView) convertView.findViewById(R.id.userTim);
        TextView userTell = (TextView) convertView.findViewById(R.id.userTell);
        TextView userPrice = (TextView) convertView.findViewById(R.id.userPrice);
        TextView userRating = (TextView) convertView.findViewById(R.id.userRating);
        TextView jarak = (TextView) convertView.findViewById(R.id.jarak);

        Jarak j = jarakItems.get(position);

        thumbNail.setImageUrl(j.getGambar(), imageLoader);
        userName.setText(j.getName());
        userTim.setText(j.getTim());
        userTell.setText(j.getTell());
        userRating.setText(j.getRating());
        userPrice.setText(j.getPrice());
        jarak.setText(j.getJarak() + "กม.");

        return convertView;
    }

}

package com.dedykuncoro.uthaitour;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.content.Intent;
import android.net.Uri;
import android.widget.ImageView;
import android.widget.RatingBar;
import android.widget.TextView;
import com.bumptech.glide.Glide;


public class DetailTravel extends AppCompatActivity {

    private Button button, btncalltravel, btngpsmaptravel;
    private ImageView ShowImageTravel;
    private TextView ShowNameTravel, ShowTimTravel, ShowDetailTravel, ShowRatingTravel;
    RatingBar rb;
    TextView va;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail_travel);

        rb = (RatingBar) findViewById(R.id.rating);
        va = (TextView) findViewById(R.id.textRating);

        rb.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean b) {
                va.setText("" + rating);
            }
        });
}
}

 <android.support.v7.widget.CardView
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="10dp"
                    android:text="คะแนนความพึงพอใจ"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:textColor="#757575"
                    android:textSize="16sp"
                    android:textStyle="bold|normal" />

                <RatingBar
                    android:id="@+id/rating"
                    style="?android:attr/ratingBarStyle"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:numStars="5"
                    android:stepSize="1"
                    android:layout_marginTop="20sp"
/>

                <TextView
                    android:id="@+id/textRating"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="right"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:textColor="#424242"
                    android:textSize="15dp"
                    android:layout_marginTop="35sp"
                    android:layout_gravity="right"
                    android:layout_marginRight="20sp"/>



            </android.support.v7.widget.CardView>