logicform.java

这是一个我们上完java课之后做的一个大型的项目作业

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class LogicForm implements ActionListener
{

			JTextField user;
			JPasswordField passWd;
			JButton b1,b2;
			Container dialogPane;
			JDialog d;
			JFrame f;
			
			public LogicForm(JFrame f)
			{
				d=new JDialog();
				d.setTitle("学生信息管理系统");
				dialogPane=d.getContentPane();
				dialogPane.setLayout(new GridLayout(3,2));
				dialogPane.add(new JLabel("用户名",SwingConstants.CENTER));
				user=new JTextField();
				dialogPane.add(user);
				dialogPane.add(new JLabel("密码",SwingConstants.CENTER));
				passWd=new JPasswordField();
				dialogPane.add(passWd);
				b1=new JButton("登陆");
				b2=new JButton("取消");
				dialogPane.add(b1);
				dialogPane.add(b2);
				
				b1.addActionListener(this);
				b2.addActionListener(this);
				
				d.setBounds(450,300,200,120);
				d.getRootPane().setDefaultButton(b1);
				d.setVisible(true);
				this.f=f;
				}
				
				public void actionPerformed(ActionEvent e)
				{
					String cmd=e.getActionCommand();
					if(cmd.equals("登陆"))
					{
						String name=user.getText();
						String passWord=passWd.getText();
						if((name.equals("bo")) &&(passWord.equals("..")))
						{
							d.dispose();
							f.setVisible(true);
							return;
						}
						else
							{
								JOptionPane.showMessageDialog(d,"错误的用户名或密码","重新输入",JOptionPane.WARNING_MESSAGE);
								user.setText("");
								passWd.setText("");
							}
					}
						if(cmd.equals("取消")) System.exit(0);
				}


}