public class MBContact {

    private Contact contact;
    private ArrayList<Contact> contacts;

    static Connection connection = null;
    static Statement stm = null;
    static ResultSet rs = null;

    public MBContact() {
        try {
            if (connection == null) {
                Class.forName("com.mysql.jdbc.Driver");
                connection = DriverManager.getConnection(
                        "jdbc:mysql://localhost:3306/site", "root", "");
            }
        } catch (Exception e) {
            System.err.println("Error SQL: " + e);
            connection = null;
        }
    }

    public Contact getContact() {
        return contact;
    }

    public void setContact(Contact contact) {
        this.contact = contact;
    }

    public ArrayList<Contact> getContacts() throws SQLException {
        contacts = new ArrayList<Contact>();
        stm = connection.createStatement();
        rs = stm.executeQuery("SELECT * FROM si_contact");
        while (rs.next()) {
            contact = new Contact();
            contact.setId(rs.getInt("id"));
            contact.setName(rs.getString("name"));
            contact.setPhone(rs.getString("phone"));
            contact.setEmail(rs.getString("email"));
            contacts.add(contact);
        }
        rs.close();
        stm.close();
        return contacts;
    }

    public String insert() throws SQLException {
        contact = new Contact();
        stm = connection.createStatement();
        stm.execute("INSERT into si_contact (name, phone, email) VALUES ('"
                + contact.getName() + "','" + contact.getPhone() + "','"
                + contact.getEmail() + "')");
        return "sucesso";
    }
}