import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import com.mysql.jdbc.PreparedStatement;
@SuppressWarnings("serial")
class DL extends JFrame implements ActionListener
{
JFrame frame = new JFrame("职工/管理员登陆");
JLabel label1 = new JLabel("用户名");
JLabel label2 = new JLabel("密码");
JButton logonButton1 = new JButton("管理员登录");