Java实验--基于Swing的简单的歌曲信息管理系统(三)

转载请注明出处,上一篇《Java实验--基于Swing的简单的歌曲信息管理系统(二)》介绍了项目的目录结构和Dao层,本篇主要讲解界面的绘制和业务层Service。

  • 登录界面

  登录界面设计,登录界面窗体中有三个面板,一个主面板,两个子面板,子面板放入主面板中。主面板采用网格布局(一行两列),左边的子面板采用流式布局,用来放图片,右边的子面板放入填入信息,最开始采用的是网格布局,但是效果不好,之后采用了绝对定位布局。如下:

  

  同时我们为登录按钮和注册按钮添加监听器和事件,当点击登录按钮时,会对输入的内容进行校验,再调用service层的登录方法,进行登录,成功则根据用户类型跳转相应的主界面,当点击注册按钮时,直接跳转注册页面。这时我们就需要调用User的Service层了,service层再去调用dao层的相关方法即可。

  布局代码:

package shiyan6.view;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
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 shiyan6.entity.User;
import shiyan6.service.UserService;
import shiyan6.service.UserServiceImpl;

public class LoginView extends JFrame {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private JPanel panel_main; // 主面板
    private JPanel panel_left; // 左侧面板
    private JPanel panel_right; // 右侧标签

    private JLabel lb_img; // 显示图片的标签

    private JLabel lb_uname; // 用户标签
    private JLabel lb_upass; // 密码标签
    private JLabel lb_type; // 登录类型标签

    private JTextField tf_uname; // 用户文本框
    private JPasswordField pf_upass; // 密码文本框

    private JButton btn_login; // 登录按钮
    private JButton btn_register; // 注册按钮

    private JComboBox<String> cb_type; // 用户角色下拉列表框

    private UserService userService;
    private User user;

    public LoginView() {
        userService = new UserServiceImpl();
        user = null;
        init();
        login();
        register();
    }

    /**
     * 初始化控件
     */
    private void init() {
        this.setSize(600, 300); // 设置窗体大小
        this.setLocationRelativeTo(null); // 设置窗体居中显示
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 关闭按钮
        this.setTitle("登录"); // 表题
        this.setResizable(false); // 不可改变窗体大小
        // 初始化面板
        panel_main = new JPanel(new GridLayout(1, 2)); // 网格布局
        panel_left = new JPanel(); // 流式布局
//        panel_right = new JPanel(new GridLayout(4, 2, 0, 10)); // 效果不是很好
        panel_right = new JPanel(null); // 使用绝对定位
//        panel_right.setPreferredSize(new Dimension(300, 200));
        // 初始化控件
        lb_img = new JLabel(new ImageIcon(ClassLoader.getSystemResource("shiyan6/img/login.png")));
        lb_uname = new JLabel("用户:", JLabel.CENTER); // 居中显示
        lb_uname.setBounds(20, 20, 80, 26);
        lb_upass = new JLabel("密码:", JLabel.CENTER);
        lb_upass.setBounds(20, 70, 80, 26);
        lb_type = new JLabel("类型", JLabel.CENTER);
        lb_type.setBounds(20, 120, 80, 26);
        tf_uname = new JTextField(8);
        tf_uname.setBounds(80, 20, 180, 30);
        pf_upass = new JPasswordField(8);
        pf_upass.setBounds(80, 70, 180, 30);
        cb_type = new JComboBox<String>(new String[] { "普通用户", "管理员" });
        cb_type.setBounds(80, 120, 100, 30);
        btn_login = new JButton("登录");
        btn_login.setBounds(30, 170, 80, 26);
        btn_register = new JButton("注册");
        btn_register.setBounds(180, 170, 80, 26);
        // 把相应的控件放到面板中去
        panel_left.add(lb_img);

        panel_right.add(lb_uname);
        panel_right.add(tf_uname);
        panel_right.add(lb_upass);
        panel_right.add(pf_upass);
        panel_right.add(lb_type);
        panel_right.add(cb_type);
        panel_right.add(btn_login);
        panel_right.add(btn_register);

        // 主面板中放左右两个面板
        panel_main.add(panel_left);
        panel_main.add(panel_right);

        // 再把主面板放到窗体中
        this.getContentPane().add(panel_main);
        //this.pack(); // 收缩一下
        this.setVisible(true); // 显示窗体
    }

    /**
     * 用户登录
     */
    private void login() {
        btn_login.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                // 获取用户名和密码,类别加1
                String uname = tf_uname.getText().trim();
                String upass = new String(pf_upass.getPassword());
                int type = cb_type.getSelectedIndex() + 1;
                if (uname.equals("")) {
                    JOptionPane.showMessageDialog(LoginView.this, "用户名不能为空");
                } else if (upass.equals("")) {
                    JOptionPane.showMessageDialog(LoginView.this, "密码不能为空");
                }
                user = userService.login(uname, upass);
                System.out.println(user);
                System.out.println(user != null);
                if (null != user) {
                    if (type != user.getRole()) {
                        JOptionPane.showMessageDialog(LoginView.this, "身份类型错误,请重新选择");
                    } else {
                        if (type == 1) { // 普通用户
                            // 传递过去的user用于显示信息
                            new UserMainView(user);
                            LoginView.this.dispose(); // 关闭登陆框
                        } else { // 管理员
                            // 传递过去的user用于显示信息
                            new AdminMainView(user);
                            LoginView.this.dispose(); // 关闭登陆框
                        }
                    }
                } else {
                    JOptionPane.showMessageDialog(LoginView.this, "用户或密码错误");
                }
            }
        });
    }
    /**
     * 注册
     */
    private void register() {
        btn_register.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                new RegisterView();
            }
        });
    }
}
View Code

  UserService接口部分代码: 

package shiyan6.service;

import java.util.List;

import shiyan6.entity.User;

/**
 * User的业务层
 *
 */
public interface UserService {
    /**
     * 用户登录
     * @param name,登录名
     * @param password
     * @return
     */
    User login(String name, String password);
    /**
     * 用户注册
     * @param user
     * @return
     */
    boolean register(User user);
    /**
     * 查看用户是否存在
     * @param name
     * @return
     */
    boolean checkUser(String name);
}
View Code

  UserServiceImple实现类部分代码:

package shiyan6.service;

import java.util.List;

import shiyan6.dao.UserDao;
import shiyan6.dao.UserDaoImpl;
import shiyan6.entity.User;

public class UserServiceImpl implements UserService {
    UserDao userDao = new UserDaoImpl();
    public User login(String name, String password) {
        return userDao.findByNameAndPass(name, password);
    }
    @Override
    public boolean register(User user) {
        return userDao.addUser(user);
    }
    @Override
    public boolean checkUser(String name) {
        int count = userDao.findCountByName(name);
        System.out.println("conutservice:"+count);
        if (count == 0) {
            return false;
        } else {
            return true;
        }
    }
}
View Code

效果如下:

  • 注册界面

  同理登录页面一样,开始采用的时网格布局,但是效果极差,后面采用的是绝对定位。

  

  同样需要为取消按钮和注册按钮注册监听器、添加事件。

  代码如下:

package shiyan6.view;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;

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 shiyan6.entity.User;
import shiyan6.service.UserService;
import shiyan6.service.UserServiceImpl;
import shiyan6.util.Common;

public class RegisterView extends JFrame {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    private JPanel panelMain; // 主面板
    
    private JLabel labName;  // 用户名
    private JLabel labPass; // 密码
    private JLabel labConfirmpass; // 确认新密码
    
    private JTextField tfName;  // 用户名
    private JPasswordField pfPass; // 旧密码输入框
    private JPasswordField pfConfirmpass; // 确认密码输入
    
    private JButton btnConcel; // 取消按钮
    private JButton btnRegsit; // 修改按钮
    
    private UserService userService;
    
    public RegisterView() {
        userService = new UserServiceImpl();
        init();
        cancel();
        register();
    }

    /**
     * 初始化各组件
     */
    private void init() {
        this.setTitle("注册信息");
        this.setSize(350, 300);
        this.setLocationRelativeTo(null); // 设置窗体居中显示
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); // 关闭按钮
//        panelMain = new JPanel(new GridLayout(5, 1)); // 5行1列,效果极差
        panelMain = new JPanel(null); // 使用绝对布局
        labName = new JLabel("名字:");
        labName.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        labName.setBounds(40, 20, 80, 26);
        tfName = new JTextField();
        tfName.setBounds(150, 20, 100, 26);
        panelMain.add(labName);
        panelMain.add(tfName);
        
        labPass = new JLabel("密码:");
        labPass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        labPass.setBounds(40, 70, 80, 26);
        pfPass = new JPasswordField();
        pfPass.setBounds(150, 70, 100, 26);
        panelMain.add(labPass);
        panelMain.add(pfPass);
        
        labConfirmpass = new JLabel("再次确认:");
        labConfirmpass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        labConfirmpass.setBounds(40, 120, 80, 26);
        pfConfirmpass = new JPasswordField();
        pfConfirmpass.setBounds(150, 120, 100, 26);
        panelMain.add(labConfirmpass);
        panelMain.add(pfConfirmpass);
        
        btnConcel = new JButton("取消");
        btnConcel.setBounds(60, 170, 60, 30);
        btnRegsit = new JButton("注册");
        btnRegsit.setBounds(170, 170, 60, 30);
        panelMain.add(btnConcel);
        panelMain.add(btnRegsit);
        
        this.getContentPane().add(panelMain);
        this.setVisible(true);
    }
    /**
     * 取消按钮,将文本框的类容给清空
     */
    private void cancel() {
        btnConcel.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                tfName.setText("");
                pfPass.setText("");
                pfConfirmpass.setText("");
            }
        });
    }
    /**
     * 用户注册
     */
    
    private void register() {
        tfName.addFocusListener(new FocusAdapter() {
            public void focusLost(FocusEvent e) {
                String name = tfName.getText().trim();
                // 查看用户名是否存在
                if (userService.checkUser(name)) {
                    JOptionPane.showMessageDialog(panelMain, "该用户名已被注册", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    return;
                }
            }
        });
        btnRegsit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                String name = tfName.getText().trim();
                String password = new String(pfPass.getPassword());
                String compassword = new String(pfConfirmpass.getPassword());
                if (name.equals("") || name == null
                        || password.equals("") || password == null
                        || compassword.equals("") || compassword == null) {
                    JOptionPane.showMessageDialog(panelMain, "填入信息不能有空", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    return;
                }
                if (!password.equals(compassword)) {
                    JOptionPane.showMessageDialog(panelMain, "两次密码不一致", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    return;
                }
                
                User user = new User(Common.getUuid(), name, password, 1);
                System.out.println(user);
                // 把用户信息给添加到数据库中
                if (userService.register(user)) {
                    JOptionPane.showMessageDialog(panelMain, "注册成功", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    RegisterView.this.dispose();
                    new LoginView();
                } else {
                    JOptionPane.showMessageDialog(panelMain, "注册失败", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    return;
                }
            }
        });
    }
}
View Code

 效果如下:

  • 管理员主界面

  用户管理主界面窗体中,包含一个主面板,一个欢迎信息的子面板,一个显示功能按钮键的子面板,一个显示图片和以后窗体的子面板(不过这里使用的是JDesktopPane,它可以显示并管理众多JInternalFrame)。

  主面板采用了边界布局,通过设计图知道,显示欢迎信息的子面板位于主面板的上边(NORTH),显示功能按钮的子面板位于主面板的左边(WEST),显示图片和以后窗体的子面板位于主面板上的中间(CENTER)。

  

  这里唯一的难点就是滚动的显示用户欢迎信息,需要开一个子线程来做,因为Swing是单线程的。还要为几个按钮给注册监听器和添加点击事件。布局代码如下:

package shiyan6.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

import shiyan6.entity.User;

/**
 * 管理园的主窗体
 *
 */
public class AdminMainView extends JFrame {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private JPanel panelMain;  // 主面板
    private JPanel panelTop;  // 主面板的上部
    private JLabel labWelcome; // 上部的欢迎信息

    private JPanel panelLeft; // 主面板的左边
    private JButton btnSongManage; // 歌曲管理按钮
    private JButton btnUserManage; // 用户管理按钮
    private JButton btnEditUserInfo; // 修改密码按钮
    
    private JDesktopPane panelContent; // 用来显示类容
    private JLabel labImg; // 用来存放图片
    private User user;
    public AdminMainView(User user) {
        this.user = user;
        init();
        songManageView();
        adminUserManageView();
        userInfoEditView();
    }
    /**
     * 初始化组件信息
     */
    private void init() {
        panelMain = new JPanel(new BorderLayout());
        panelTop = new JPanel();
        labWelcome = new JLabel("欢     迎    管    理    员      "+user.getName()+"  进    入    歌    曲    管    理    系    统");
        labWelcome.setFont(new Font("宋体", Font.BOLD, 22));// 设置字体
        labWelcome.setForeground(Color.BLUE); // 设置颜色
        panelTop.add(labWelcome);
        // panelTop.setSize(1000, 200); // 设置大小
        panelTop.setPreferredSize(new Dimension(1000, 100));
        // EventQueue事件,让labWelcome给动起来
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Thread(new DynaminThread()).start();
            }
        });
        panelMain.add(panelTop, BorderLayout.NORTH); // 添加到主面板的上方
        
        panelLeft = new JPanel(new GridLayout(9, 1, 0, 40));
        panelLeft.setBorder(BorderFactory.createTitledBorder("菜单栏"));
        btnSongManage = new JButton("歌曲管理");
        btnUserManage = new JButton("用户管理");
        btnEditUserInfo = new JButton("修改密码");
        panelLeft.add(new JLabel());  //填充
        panelLeft.add(btnSongManage);
        panelLeft.add(new JLabel());
        panelLeft.add(btnUserManage);
        panelLeft.add(new JLabel());
        panelLeft.add(btnEditUserInfo);
        // panelLeft.setSize(400, 600); // 设置大小,此方法无效
        panelLeft.setPreferredSize(new Dimension(200, 600));
        panelMain.add(panelLeft, BorderLayout.WEST); // 添加到主面板的左边
        
        panelContent = new JDesktopPane();
        ImageIcon image = new ImageIcon("src/shiyan6/img/song.jpg");
//        System.out.println(image);
        labImg = new JLabel(image);
        labImg.setBounds(15, 15, 750, 550); // 设置位置和大小
        panelContent.setPreferredSize(new Dimension(800, 600));
        panelContent.add(labImg, new Integer(Integer.MIN_VALUE)); // 将存放图片的label放在最下层
        panelContent.setBorder(BorderFactory.createTitledBorder("内容"));
        panelMain.add(panelContent, BorderLayout.CENTER); // 添加到主界面的中间
        
        this.setTitle("歌曲管理系统"); // 窗体标题
        this.getContentPane().add(panelMain); // 将主面板给加入到窗体中
        this.setSize(1000, 800); // 设置窗体大小
        this.setLocationRelativeTo(null); // 让窗体显示在屏幕中央
        this.setResizable(false); // 窗体大小不可变
        this.setDefaultCloseOperation(EXIT_ON_CLOSE); // 设置关闭按钮
        this.setBackground(Color.white);
        this.setVisible(true);  // 让窗体可见
    }
    /**
     * 让欢迎的label动起来,
     * 因为swing是单线程的,因此需要启动一个线程
     *
     */
    private class DynaminThread implements Runnable {
        public void run() {
            while(true) {
                for(int i = 1000; i > -980; i --) {
                    try {
                        Thread.sleep(10);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    labWelcome.setLocation(i, 30);
                }
            }
        }
    }
    /**
     * 添加事件,跳转管理歌曲的页面
     */
    private void songManageView() {
        btnSongManage.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
//                System.out.println(e.getActionCommand());
                AdminSongManageView sManagerView = new AdminSongManageView();
                // 将指定的视图给添加到JDeskTopPanel中
                panelContent.add(sManagerView);
                // 将视图放在最前面
                sManagerView.toFront();
            }
        });
    }
    /**
     * 用户管理界面
     */
    private void adminUserManageView() {
        btnUserManage.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                AdminUserManageView adminUserManageView = new AdminUserManageView();
                // 将指定的视图给添加到JDeskTopPanel中
                panelContent.add(adminUserManageView);
                // 将视图放在最前面
                adminUserManageView.toFront();
            }
        });
    }
    /**
     * 进入密码修改界面
     */
    private void userInfoEditView() {
        btnEditUserInfo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                UserInfoEditView userInfoEditView = new UserInfoEditView(user);
                // 将指定的视图给添加到JDeskTopPanel中
                panelContent.add(userInfoEditView);
                // 将视图给放在最前面
                userInfoEditView.toFront();
            }
        });
    }
}
View Code

 

  效果如下:

  

  • 修改密码

  界面设计,使用的JInternalFrame窗体,让其显示到JDesktopPane中,设计图如下所示:

  

  布局代码如下:

package shiyan6.view;

import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;

import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;

import shiyan6.entity.User;
import shiyan6.service.UserService;
import shiyan6.service.UserServiceImpl;

/**
 * 管理歌曲信息界面
 *
 */
public class UserInfoEditView extends JInternalFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    private JPanel panelMain; // 主面板
    private JPanel panel1;
    private JPanel panel2;
    private JPanel panel3;
    private JPanel panel4;
    
    private JLabel labPrepass; // 旧密码
    private JLabel labNewpass; // 新密码
    private JLabel labConfirmpass; // 确认新密码
    private JPasswordField pfPrepass; // 旧密码输入框
    private JPasswordField pfNewpass; // 新密码输入框
    private JPasswordField pfConfirmpass; // 确认密码输入
    private JButton btnConcel; // 取消按钮
    private JButton btnEdit; // 修改按钮

    public UserInfoEditView(User user) {
        init();
    }

    /**
     * 初始化各组件
     */
    private void init() {
        this.setTitle("修改信息");
        this.setSize(new Dimension(500, 500));
        this.setIconifiable(true); // 窗体最小化
        this.setClosable(true); // 可被关闭
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE); // 退出
        panelMain = new JPanel(new GridLayout(5, 1)); // 5行1列
        panelMain.add(new JPanel()); // 填充
        
        panel1 = new JPanel();
        labPrepass = new JLabel("旧密码:");
        labPrepass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfPrepass = new JPasswordField(8);
        panel1.add(labPrepass);
        panel1.add(pfPrepass);
        panelMain.add(panel1);
        
        panel2 = new JPanel();
        labNewpass = new JLabel("新密码:");
        labNewpass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfNewpass = new JPasswordField(8);
        panel2.add(labNewpass);
        panel2.add(pfNewpass);
        panelMain.add(panel2);
        
        panel3 = new JPanel();
        labConfirmpass = new JLabel("再次确认:");
        labConfirmpass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfConfirmpass = new JPasswordField(8);
        panel3.add(labConfirmpass);
        panel3.add(pfConfirmpass);
        panelMain.add(panel3);
        
        panel4 = new JPanel(null);
        btnConcel = new JButton("取消");
        btnConcel.setBounds(100, 30, 80, 30);
        btnEdit = new JButton("编辑");
        btnEdit.setBounds(300, 30, 80, 30);
        panel4.add(btnConcel);
        panel4.add(btnEdit);
        panelMain.add(panel4);
        
        this.getContentPane().add(panelMain);
        this.setVisible(true);
    }
}
View Code

  效果如下:

  

  为旧密码框添加光标移除事件,在光标移除后,检验输入的旧密码是否争取,如错误,则给出提示消息,代码如下:

pfPrepass.addFocusListener(new FocusAdapter() {
    public void focusLost(FocusEvent e)  {
        // 得到输入的旧密码
        String prePwd = new String(pfPrepass.getPassword());
        if (!user.getPassword().equals(prePwd)) {
            System.out.println("用户密码"+user.getPassword());
            System.out.println("旧密码"+prePwd);
            JOptionPane.showMessageDialog(panelMain, "密码不正确,请重新输入", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
        }
    }
});

  为编辑按钮添加事件监听器,获取输入框中的值,进行了必要的检查之后,再调用Service层,Service层调用Dao层,最终修改数据库中的信息,具体代码如下:

btnEdit.addActionListener(new ActionListener() {
    
    public void actionPerformed(ActionEvent e) {
        // 新密码
        String newPwd = new String(pfNewpass.getPassword());
        // 再次输入
        String comPwd = new String(pfConfirmpass.getPassword());
        if (!newPwd.equals(comPwd)) {
            JOptionPane.showMessageDialog(panelMain, "两次输入不一致,请重新输入", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
            return;
        }
        System.out.println("new"+newPwd);
        System.out.println("com"+comPwd);
        // 重新为user设置密码
        user.setPassword(newPwd);
        // 保存到数据库中
        if (userService.updatePassword(user)) {
            JOptionPane.showMessageDialog(panelMain, "修改成功", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
        } else {
            JOptionPane.showMessageDialog(panelMain, "修改失败", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
        }
    }
});
View Code

  为取消按钮添加事件监听器,代码如下:

btnConcel.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        pfPrepass.setText("");
        pfNewpass.setText("");
        pfConfirmpass.setText("");
    }
});

  修改密码完整代码如下:

package shiyan6.view;

import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;

import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;

import shiyan6.entity.User;
import shiyan6.service.UserService;
import shiyan6.service.UserServiceImpl;

/**
 * 管理歌曲信息界面
 *
 */
public class UserInfoEditView extends JInternalFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    private JPanel panelMain; // 主面板
    private JPanel panel1;
    private JPanel panel2;
    private JPanel panel3;
    private JPanel panel4;
    
    private JLabel labPrepass; // 旧密码
    private JLabel labNewpass; // 新密码
    private JLabel labConfirmpass; // 确认新密码
    private JPasswordField pfPrepass; // 旧密码输入框
    private JPasswordField pfNewpass; // 新密码输入框
    private JPasswordField pfConfirmpass; // 确认密码输入
    private JButton btnConcel; // 取消按钮
    private JButton btnEdit; // 修改按钮
    
    private UserService userService;
    private User user;
    public UserInfoEditView(User user) {
        this.user = user;
        userService = new UserServiceImpl();
        init();
        cancel();
        edit();
        System.out.println("UserInfoEditView");
    }

    /**
     * 初始化各组件
     */
    private void init() {
        this.setTitle("修改信息");
        this.setSize(new Dimension(500, 500));
        this.setIconifiable(true); // 窗体最小化
        this.setClosable(true); // 可被关闭
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE); // 退出
        panelMain = new JPanel(new GridLayout(5, 1)); // 5行1列
        panelMain.add(new JPanel()); // 填充
        
        panel1 = new JPanel();
        labPrepass = new JLabel("旧密码:");
        labPrepass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfPrepass = new JPasswordField(8);
        panel1.add(labPrepass);
        panel1.add(pfPrepass);
        panelMain.add(panel1);
        
        panel2 = new JPanel();
        labNewpass = new JLabel("新密码:");
        labNewpass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfNewpass = new JPasswordField(8);
        panel2.add(labNewpass);
        panel2.add(pfNewpass);
        panelMain.add(panel2);
        
        panel3 = new JPanel();
        labConfirmpass = new JLabel("再次确认:");
        labConfirmpass.setFont(new Font("宋体", Font.BOLD, 15)); // 设置字体
        pfConfirmpass = new JPasswordField(8);
        panel3.add(labConfirmpass);
        panel3.add(pfConfirmpass);
        panelMain.add(panel3);
        
        panel4 = new JPanel(null);
        btnConcel = new JButton("取消");
        btnConcel.setBounds(100, 30, 80, 30);
        btnEdit = new JButton("编辑");
        btnEdit.setBounds(300, 30, 80, 30);
        panel4.add(btnConcel);
        panel4.add(btnEdit);
        panelMain.add(panel4);
        
        this.getContentPane().add(panelMain);
        this.setVisible(true);
    }
    /**
     * 取消
     */
    private void cancel() {
        btnConcel.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                pfPrepass.setText("");
                pfNewpass.setText("");
                pfConfirmpass.setText("");
            }
        });
    }
    /**
     * 修改密码
     */
    private void edit() {
        btnEdit.addActionListener(new ActionListener() {
            
            public void actionPerformed(ActionEvent e) {
                // 新密码
                String newPwd = new String(pfNewpass.getPassword());
                // 再次输入
                String comPwd = new String(pfConfirmpass.getPassword());
                if (!newPwd.equals(comPwd)) {
                    JOptionPane.showMessageDialog(panelMain, "两次输入不一致,请重新输入", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                    return;
                }
                System.out.println("new"+newPwd);
                System.out.println("com"+comPwd);
                // 重新为user设置密码
                user.setPassword(newPwd);
                // 保存到数据库中
                if (userService.updatePassword(user)) {
                    JOptionPane.showMessageDialog(panelMain, "修改成功", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                } else {
                    JOptionPane.showMessageDialog(panelMain, "修改失败", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                }
            }
        });
        pfPrepass.addFocusListener(new FocusAdapter() {
            public void focusLost(FocusEvent e)  {
                // 得到输入的旧密码
                String prePwd = new String(pfPrepass.getPassword());
                if (!user.getPassword().equals(prePwd)) {
                    System.out.println("用户密码"+user.getPassword());
                    System.out.println("旧密码"+prePwd);
                    JOptionPane.showMessageDialog(panelMain, "密码不正确,请重新输入", "消息提示框", JOptionPane.INFORMATION_MESSAGE);
                }
            }
        });
        
        
    }
}
View Code

   用到的UserService层代码:

  UserService接口部分代码如下:

package shiyan6.service;

import java.util.List;

import shiyan6.entity.User;

/**
 * User的业务层
 *
 */
public interface UserService {
    /**
     * 修改密码
     * @param user
     * @return
     */
    boolean updatePassword(User user);
}

  UserServiceImpl实现类部分代码:

package shiyan6.service;

import java.util.List;

import shiyan6.dao.UserDao;
import shiyan6.dao.UserDaoImpl;
import shiyan6.entity.User;

public class UserServiceImpl implements UserService {
    UserDao userDao = new UserDaoImpl();

    public boolean updatePassword(User user) {
        return userDao.editUser(user);
    }
}

 

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posted @ 2017-12-13 22:30  meiqing  阅读(1859)  评论(0编辑  收藏  举报