Import excel to mysql

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class Database {
    private Connection connect = null;
    private Statement statement = null;
    private PreparedStatement preparedStatement = null;
    private ResultSet resultSet = null;

    public void readDataBase() throws Exception {
        try {
            // This will load the MySQL driver, each DB has its own driver
            Class.forName("com.mysql.cj.jdbc.Driver");
            // Setup the connection with the DB
            connect = DriverManager
                    .getConnection("jdbc:mysql://localhost/feedback?"
                            + "user=sqluser&password=sqluserpw");

            // Statements allow to issue SQL queries to the database
            statement = connect.createStatement();
            // Result set get the result of the SQL query
            resultSet = statement
                    .executeQuery("select * from feedback