landframe.java

用java编写的人事管理系统,很好的 学习下吧

/**
 * 源文件：LandFrame.java
 * 作用：用户登陆进入系统
 */
package mypro;

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

public class LandFrame extends JDialog implements ActionListener
{
	static String strCode;
	private JLabel labCode,labPwd,labTitle,labClue;
	private JTextField txtCode;
	private JPasswordField pwd;
	private JButton btnLand,btnExit;
	
	static 
	{
   	 	//设置窗体为豪华框架
   		JDialog.setDefaultLookAndFeelDecorated(true);		
	}
	
	public LandFrame()
	{
		labTitle =new JLabel("员工登陆");
		labCode=new JLabel("员工工号");
		labPwd=new JLabel("密码");
		labClue=new JLabel("请输入工号和密码登陆");
		txtCode=new JTextField();
		pwd=new JPasswordField();
		btnLand=new JButton("登陆");
		btnExit=new JButton("退出");
		
		labTitle.setFont(new Font("华文新魏", Font.BOLD | Font.ITALIC, 25));
        labTitle.setHorizontalAlignment(SwingConstants.CENTER);
        labTitle.setBounds(new Rectangle(77, 17, 221, 35));
        
        labCode.setBounds(new Rectangle(64, 82, 76, 25));
        labPwd.setBounds(new Rectangle(64, 125, 76, 25));
        txtCode.setBounds(new Rectangle(154, 81, 156, 25));
        pwd.setBounds(new Rectangle(154, 123, 156, 25));
        
        btnLand.setBounds(new Rectangle(64, 177, 91, 28));
		btnLand.setActionCommand("Land");
		btnLand.setToolTipText("登陆进入系统");
		btnExit.setBounds(new Rectangle(219, 177, 91, 28));
		btnExit.setActionCommand("Exit");
		btnExit.setToolTipText("放弃登陆");
		btnLand.addActionListener(this);
		btnExit.addActionListener(this);
		
		labClue.setHorizontalAlignment(SwingConstants.CENTER);
		labClue.setBounds(new Rectangle(77, 208, 221, 35));
		
		Container me=this.getContentPane();
		me.setLayout(null);
		me.add(labTitle);
		me.add(labCode);
		me.add(labPwd);
		me.add(labClue);
		me.add(txtCode);
		me.add(pwd);
		me.add(btnLand);
		me.add(btnExit);
		
		this.setTitle("员工登陆");
		this.setSize(375, 288);
		this.setResizable(false);
		this.setLocationRelativeTo(this);
		this.setDefaultCloseOperation(JDialog.EXIT_ON_CLOSE);
		this.setVisible(true);
		
	}
	
	 public void actionPerformed(ActionEvent lae)
	 {
	 	String strbtn=lae.getActionCommand();
	 	if(strbtn.equals("Land"))
	 	{
	 		strCode=txtCode.getText().trim();
	 		String strPwd=pwd.getText();
	 		Check check=new Check();
	 		UsersData ud = new UsersData();
	 		ud.setUserCode(strCode);
	 		ud.setPwd(strPwd);
	 		if(strCode.length()==0)
	 		{
	 			JOptionPane.showMessageDialog(null,"请输入工号","提示",JOptionPane.INFORMATION_MESSAGE);
	 			txtCode.requestFocus();
	 		}
	 		else if(strPwd.length()!=6)
	 		{
	 			JOptionPane.showMessageDialog(null,"请输入六位数密码","提示",JOptionPane.INFORMATION_MESSAGE);
	 			pwd.setText("");
	 			pwd.requestFocus();
	 		}
	 		else if(check.checkCodeAndPwd(ud))
	 		{
	 			if(strCode.equals("A000"))
	 			{
	 				MainFrame main=new MainFrame();
	 				main.menuUsers.setEnabled(true);
					main.btnUsers.setEnabled(true);
					this.dispose();
				}
				else
				{
					new MainFrame();
					this.dispose();
				}
	 		}
	 		else
			{
				JOptionPane.showMessageDialog(null, "工号或者密码不正确，", "登陆失败", JOptionPane.ERROR_MESSAGE);
				txtCode.setText("");
				pwd.setText("");
				txtCode.requestFocus();
			}
	 		
	 	}
	 	else if (strbtn.equals("Exit"))
		{
			System.exit(0);
		}
	 }
}