Java登录界面简单设计

package cn.com.view;

import java.awt.Color;
import java.awt.Font;
import java.awt.SystemColor;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;

import javax.swing.ImageIcon;
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.JProgressBar;
import javax.swing.JTextField;

import sun.awt.HorizBagLayout;


import cn.com.beans.UserInfoBean;
import cn.com.beans.UserInfoViewBean;
import cn.com.daos.UserInfoDAO;
import cn.com.listeners.LoginFrame_btnLogin_ActionListener;
import cn.com.listeners.LoginFrame_btnReset_ActionListener;
import cn.com.listeners.LoginFrame_lblRegist_MouseListener;


public class LoginFrame extends JFrame {
    JPanel pnlMain;
    JButton btnLogin;
    JButton btnReset;
    JLabel lblUserName;
    JLabel lblUserPwd;
    JLabel lblTitle;
    JLabel lblRegist;
    JTextField txtUserName;
    JPasswordField pwdUserPwd;
    JProgressBar progressBar;
    JLabel lblLoginStat;
    
    public LoginFrame() {
        pnlMain = new JPanel(null);
        btnLogin = new JButton("登录");
        btnReset = new JButton("重置");
        lblUserName = new JLabel("用户名：");
        lblUserPwd = new JLabel("密  码：");
        lblTitle = new JLabel("用户登录");
        lblRegist = new JLabel("注册");
        txtUserName = new JTextField();
        pwdUserPwd = new JPasswordField();
        progressBar = new JProgressBar();
        progressBar.setIndeterminate(false);
        progressBar.setOrientation(JProgressBar.HORIZONTAL);
        progressBar.setForeground(new Color(0, 255, 0));
        progressBar.setBounds(286, 348, 146, 14);
        init();
    }

    private void init() {
        // TODO Auto-generated method stub
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setIconImage(Toolkit.getDefaultToolkit().getImage("image\e.jpg"));
        this.setBounds(100, 100, 559, 351);
        this.setLocationRelativeTo(null);
        this.setResizable(false);
        this.getContentPane().setLayout(null);
        getContentPane().setBackground(new Color(255, 255, 255));
        
        
        JLabel label = new JLabel("人事管理系统用户登录");
        label.setFont(new Font("楷体", Font.PLAIN, 40));
        label.setBackground(Color.WHITE);
        label.setBounds(79, 10, 400, 43);
        this.getContentPane().add(label);
        
        JLabel lblNewLabel = new JLabel("图片");
        lblNewLabel.setBounds(10, 63, 250, 250);
        this.getContentPane().add(lblNewLabel);
        lblNewLabel.setIcon(new ImageIcon("D:\Workspaces\PMSys\image\login.jpg"));
        
        JLabel lblUserName = new JLabel("用户名：");
        lblUserName.setFont(new Font("华文楷体", Font.BOLD, 15));
        lblUserName.setBounds(270, 100, 65, 28);
        this.getContentPane().add(lblUserName);
        
        JLabel lblUserPwd = new JLabel("密   码：");
        lblUserPwd.setFont(new Font("华文楷体", Font.BOLD, 15));
        lblUserPwd.setBounds(270, 163, 65, 25);
        this.getContentPane().add(lblUserPwd);
        
        txtUserName = new JTextField();
        txtUserName.setText("请输入用户名");
        txtUserName.setBounds(345, 97, 173, 31);
        txtUserName.setBackground(new Color(255, 255, 204));
        this.getContentPane().add(txtUserName);
        txtUserName.setColumns(10);
        
        pwdUserPwd = new JPasswordField();
        pwdUserPwd.setFont(new Font("宋体", Font.BOLD, 20));
        pwdUserPwd.setBounds(345, 160, 173, 28);
        pwdUserPwd.setBackground(new Color(255, 255, 204));
        this.getContentPane().add(pwdUserPwd);
        
        JButton btnLogin = new JButton("登录");
        
        btnLogin.setBounds(272, 217, 93, 43);
        this.getContentPane().add(btnLogin);
        
        JButton btnReset = new JButton("重置");
        
        btnReset.setBounds(427, 217, 93, 43);
        this.getContentPane().add(btnReset);
        
        lblLoginStat = new JLabel("登录中>>>>");
        lblLoginStat.setForeground(Color.RED);
        lblLoginStat.setFont(new Font("华文楷体", Font.BOLD, 15));
        lblLoginStat.setBounds(270,270,246,14);
        this.getContentPane().add(lblLoginStat);
        lblLoginStat.setVisible(false);
        
        progressBar.setBounds(272,284,246,14);
        progressBar.setIndeterminate(true);
        progressBar.setVisible(false);
        this.getContentPane().add(progressBar);
        this.setVisible(true);
        
        //添加监听事件
        btnLogin.addActionListener(new LoginFrame_btnLogin_ActionListener(this));
        btnReset.addActionListener(new LoginFrame_btnReset_ActionListener(this));
        lblRegist.addMouseListener(new LoginFrame_lblRegist_MouseListener(this));
    }

    public void btnLogin_actionPerformed(ActionEvent e){
        // TODO Auto-generated method stub
        
        progressBar.setVisible(true);
        lblLoginStat.setVisible(true);
        UserInfoDAO dao = new UserInfoDAO();
        String userName = this.txtUserName.getText();
        String userPwd = new String(this.pwdUserPwd.getPassword());
        if(dao.validateByNameAndPwd(userName, userPwd)) {
            UserInfoViewBean ab = dao.getUserListInfoByUserName(userName);
            new MainFrame(ab);
            this.dispose();
        }else {
//            JOptionPane.showMessageDialog(null, "用户名或密码错误","错误",JOptionPane.ERROR_MESSAGE);
            int n = JOptionPane.showConfirmDialog(null, "密码错误，是否重新登录？", "提示",JOptionPane.YES_NO_OPTION);
            if(n == 0){
                //progressBar.setIndeterminate(false);
                progressBar.setVisible(false);
                lblLoginStat.setVisible(false);
            }else{
                System.exit(0);
            }

        }
    }
        //重置监听事件
    public void btnReset_actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        this.txtUserName.setText("");
        this.pwdUserPwd.setText("");
    }

    public void lblRegist_mouseClicked(MouseEvent e) {
    } 
    
}