📄 mainframe.java~8~
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MainFrame
extends JFrame
implements ActionListener {
JPanel panel1;
Container c;
JMenuBar menuB;
JMenu systemMenu, bookMGRMenu, borrowBookMenu, returnBookMenu,
infoBrowseMenu, userMGRMenu,aboutMenu;
JMenuItem userLoginMenuItem, userAddMenuItem, userModifyMenuItem,
userDeleteMenuItem, exitMenuItem, bookAddMenuItem, bookModifyMenuItem,
bookDeleteMenuItem,
borrowBookMenuItem, borrowInfoMenuItem, returnBookMenuItem,
returnInfoMenuItem,
bookListMenuItem, borrowBookListMenuItem, userListMenuItem,bookBrowseListMenuItem,
aboutMenuItem;
public MainFrame() {
super("图书馆管理系统");
//--系统管理菜单--
menuB = new JMenuBar();
systemMenu = new JMenu("系统管理");
userMGRMenu = new JMenu("用户管理");
userLoginMenuItem = new JMenuItem("用户登录");
userAddMenuItem = new JMenuItem("添加用户");
userModifyMenuItem = new JMenuItem("修改密码");
userDeleteMenuItem = new JMenuItem("删除用户");
exitMenuItem = new JMenuItem("退出");
systemMenu.add(userLoginMenuItem);
userMGRMenu.add(userAddMenuItem);
userMGRMenu.add(userModifyMenuItem);
userMGRMenu.add(userDeleteMenuItem);
systemMenu.add(userMGRMenu);
systemMenu.add(exitMenuItem);
userLoginMenuItem.addActionListener(this);
userAddMenuItem.addActionListener(this);
userModifyMenuItem.addActionListener(this);
userDeleteMenuItem.addActionListener(this);
exitMenuItem.addActionListener(this);
menuB.add(systemMenu);
//---书籍管理菜单--
bookMGRMenu = new JMenu("书籍管理");
bookAddMenuItem = new JMenuItem("添加书籍");
bookModifyMenuItem = new JMenuItem("修改书籍");
bookDeleteMenuItem = new JMenuItem("删除书籍");
bookMGRMenu.add(bookAddMenuItem);
bookMGRMenu.add(bookModifyMenuItem);
bookMGRMenu.add(bookDeleteMenuItem);
bookAddMenuItem.addActionListener(this);
bookModifyMenuItem.addActionListener(this);
bookDeleteMenuItem.addActionListener(this);
menuB.add(bookMGRMenu);
//--借书管理菜单--
borrowBookMenu = new JMenu("借书管理");
borrowBookMenuItem = new JMenuItem("书籍出借");
borrowInfoMenuItem = new JMenuItem("出借信息修改");
borrowBookMenu.add(borrowBookMenuItem);
borrowBookMenu.add(borrowInfoMenuItem);
borrowBookMenuItem.addActionListener(this);
borrowInfoMenuItem.addActionListener(this);
menuB.add(borrowBookMenu);
//--还书管理菜单--
returnBookMenu = new JMenu("还书管理");
returnBookMenuItem = new JMenuItem("书籍还入");
returnInfoMenuItem = new JMenuItem("书籍还入信息修改");
returnBookMenu.add(returnBookMenuItem);
returnBookMenu.add(returnInfoMenuItem);
returnBookMenuItem.addActionListener(this);
returnInfoMenuItem.addActionListener(this);
menuB.add(returnBookMenu);
//--信息一览菜单--
infoBrowseMenu = new JMenu("信息查询");
bookListMenuItem = new JMenuItem("书籍信息查询");
borrowBookListMenuItem = new JMenuItem("借阅信息查询");
userListMenuItem = new JMenuItem("用户列表");
//bookBrowseListMenuItem = new JMenuItem("借阅情况览表");
infoBrowseMenu.add(bookListMenuItem);
infoBrowseMenu.add(borrowBookListMenuItem);
infoBrowseMenu.add(userListMenuItem);
// infoBrowseMenu.add(bookBrowseListMenuItem);
bookListMenuItem.addActionListener(this);
borrowBookListMenuItem.addActionListener(this);
userListMenuItem.addActionListener(this);
// bookBrowseListMenuItem.addActionListener(this);
menuB.add(infoBrowseMenu);
//--关于菜单--
aboutMenu=new JMenu("帮助");
aboutMenuItem = new JMenuItem("关于");
aboutMenuItem.addActionListener(this);
aboutMenu.add(aboutMenuItem);
menuB.add(aboutMenu);
//----------------------------------
setJMenuBar(menuB);
c = getContentPane();
c.setLayout(new BorderLayout());
panel1 = new JPanel();
panel1.setLayout(new BorderLayout());
c.add(panel1, BorderLayout.CENTER);
//--设置初始功能:--
userMGRMenu.setEnabled(false);
bookMGRMenu.setEnabled(false);
borrowBookMenu.setEnabled(false);
returnBookMenu.setEnabled(false);
infoBrowseMenu.setEnabled(false);
aboutMenu.setEnabled(false);
}
//--设置每个菜单点击后出现的窗口和窗口显示的位置--
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand() == "用户登录") {
UserLogin UserLoginFrame = new UserLogin(this);//创建用例类实例对象
Dimension FrameSize = UserLoginFrame.getPreferredSize();//子窗口大小
Dimension MainFrameSize = getSize();//主窗口大小
Point loc = getLocation();//主窗口位置
UserLoginFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);//设置子窗口的位置位于主窗口的中央
UserLoginFrame.pack();
UserLoginFrame.show();
}
else if (e.getActionCommand() == "添加用户") {
UserAdd UserAddFrame = new UserAdd();
Dimension FrameSize = UserAddFrame.getPreferredSize();
Dimension MainFrameSize = getSize();
Point loc = getLocation();
UserAddFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);
UserAddFrame.pack();
UserAddFrame.show();
}
else if (e.getActionCommand() == "修改密码") {
UserModify UserModifyFrame = new UserModify();
Dimension FrameSize = UserModifyFrame.getPreferredSize();
Dimension MainFrameSize = getSize();
Point loc = getLocation();
UserModifyFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);
UserModifyFrame.pack();
UserModifyFrame.show();
}
else if (e.getActionCommand() == "删除用户") {
UserDelete UserDeleteFrame = new UserDelete();
Dimension FrameSize = UserDeleteFrame.getPreferredSize();
Dimension MainFrameSize = getSize();
Point loc = getLocation();
UserDeleteFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);
UserDeleteFrame.pack();
UserDeleteFrame.show();
}
else if (e.getActionCommand() == "添加书籍") {
BookAdd BookAddFrame = new BookAdd();
Dimension FrameSize = BookAddFrame.getPreferredSize();
Dimension MainFrameSize = getSize();
Point loc = getLocation();
BookAddFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);
BookAddFrame.pack();
BookAddFrame.show();
}
else if (e.getActionCommand() == "修改书籍") {
BookModify BookModifyFrame = new BookModify();
Dimension FrameSize = BookModifyFrame.getPreferredSize();
Dimension MainFrameSize = getSize();
Point loc = getLocation();
BookModifyFrame.setLocation( (MainFrameSize.width - FrameSize.width) / 2 +
loc.x,
(MainFrameSize.height - FrameSize.height) / 2 +
loc.y);
BookModifyFrame.pack();
BookModifyFrame.show();
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