import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class MainWrite
{
    public static void main(String[] args)
    {
        try
        {
            Class.forName("com.mysql.jdbc.Driver");

            Connection connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/training", "root", "13751010");
            connection.setAutoCommit(false);

            String sql = "INSERT INTO training.FILES values (?, ?)";
            PreparedStatement preparedStatement = connection.prepareStatement(sql);

            File file = new File("/home/mohamed/Desktop/document.pdf");
            FileInputStream fileInputStream = new FileInputStream(file);

            preparedStatement.setString(1, file.getName());

            preparedStatement.setBinaryStream(2, fileInputStream, file.length());

            preparedStatement.executeUpdate();
            connection.commit();

            fileInputStream.close();
            preparedStatement.close();
            connection.close();
        }
        catch (SQLException | IOException | ClassNotFoundException e)
        {
            e.printStackTrace();
        }
    }
}