急求一段用JAVA编写的图书管理的代码,详进
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MainWindow extends JFrame implements ActionListener
{
JPanel panel1;
Container c;
JMenuBar MenuB;
JMenu SystemMenu,BookMGRMenu,BorrowBookMenu,ReturnBookMenu,
InfoBrowseMenu,UserMGRMenu;
JMenuItem UserLoginMenuItem,UserAddMenuItem,UserModifyMenuItem,
UserDeleteMenuItem,ExitMenuItem,BookAddMenuItem,BookModifyMenuItem,
BorrowBookMenuItem,ReturnBookMenuItem,
BookListMenuItem,BorrowBookListMenuItem,UserListMenuItem;
JLabel titleLabel,AuthorLabel,DateLabel;
public String Operater;
public MainWindow()
{
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");
BookMGRMenu.add(BookAddMenuItem);
BookMGRMenu.add(BookModifyMenuItem);
BookAddMenuItem.addActionListener(this);
BookModifyMenuItem.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");
BorrowBookMenu.add(BorrowBookMenuItem);
BorrowBookMenuItem.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");
ReturnBookMenu.add(ReturnBookMenuItem);
ReturnBookMenuItem.addActionListener(this);
MenuB.add(ReturnBookMenu);
//--信息一览菜单--
InfoBrowseMenu=new JMenu("信息一览");
BookListMenuItem=new JMenuItem("书籍列表");
BorrowBookListMenuItem=new JMenuItem("借阅情况表");
UserListMenuItem=new JMenuItem("用户列表");
InfoBrowseMenu.add(BookListMenuItem);
InfoBrowseMenu.add(BorrowBookListMenuItem);
InfoBrowseMenu.add(UserListMenuItem);
BookListMenuItem.addActionListener(this);
BorrowBookListMenuItem.addActionListener(this);
UserListMenuItem.addActionListener(this);
MenuB.add(InfoBrowseMenu);
//----------------------------------
setJMenuBar(MenuB);
c=getContentPane();
c.setLayout(new BorderLayout());
panel1=new JPanel();
panel1.setLayout(new BorderLayout());
c.add(panel1,BorderLayout.CENTER);
setBounds(100,50,400,300);
show();
//--设置初始功能:--
UserMGRMenu.setEnabled(false);
BookMGRMenu.setEnabled(false);
BorrowBookMenu.setEnabled(false);
ReturnBookMenu.setEnabled(false);
InfoBrowseMenu.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);
Dimension FrameSize=UserLoginFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
UserLoginFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
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();
}
else if(e.getActionCommand()=="书籍出借")
{
BorrowBook BorrowBookFrame=new BorrowBook(Operater);
Dimension FrameSize=BorrowBookFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
BorrowBookFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
BorrowBookFrame.pack();
BorrowBookFrame.show();
}
else if(e.getActionCommand()=="书籍还入")
{
ReturnBook ReturnBookFrame=new ReturnBook();
Dimension FrameSize=ReturnBookFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
ReturnBookFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
ReturnBookFrame.pack();
ReturnBookFrame.show();
}
else if(e.getActionCommand()=="书籍列表")
{
BookList BookListFrame=new BookList();
Dimension FrameSize=BookListFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
BookListFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
BookListFrame.pack();
BookListFrame.show();
}
else if(e.getActionCommand()=="借阅情况表")
{
BorrowBookList BorrowBookListFrame=new BorrowBookList();
Dimension FrameSize=BorrowBookListFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
BorrowBookListFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
BorrowBookListFrame.pack();
BorrowBookListFrame.show();
}
else if(e.getActionCommand()=="用户列表")
{
UserList UserListFrame=new UserList();
Dimension FrameSize=UserListFrame.getPreferredSize();
Dimension MainFrameSize=getSize();
Point loc=getLocation();
UserListFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
(MainFrameSize.height-FrameSize.height)/2+loc.y);
UserListFrame.pack();
UserListFrame.show();
}
else if(e.getActionCommand()=="退出")
{
this.dispose();
System.exit(0);
}
}
//--设置登录用户的权限--
public void setEnable(String powerType)
{
if(powerType.trim().equals("系统管理员"))
{
UserMGRMenu.setEnabled(true);
BookMGRMenu.setEnabled(true);
BorrowBookMenu.setEnabled(true);
ReturnBookMenu.setEnabled(true);
InfoBrowseMenu.setEnabled(true);
UserListMenuItem.setEnabled(true);
}
else if(powerType.trim().equals("书籍管理员"))
{
UserMGRMenu.setEnabled(false);
BookMGRMenu.setEnabled(true);
BorrowBookMenu.setEnabled(false);
ReturnBookMenu.setEnabled(false);
InfoBrowseMenu.setEnabled(true);
UserListMenuItem.setEnabled(false);
}
else if(powerType.trim().equals("借阅管理员"))
{
UserMGRMenu.setEnabled(false);
BookMGRMenu.setEnabled(false);
BorrowBookMenu.setEnabled(true);
ReturnBookMenu.setEnabled(true);
InfoBrowseMenu.setEnabled(true);
UserListMenuItem.setEnabled(false);
}
else if(powerType.trim().equals("else"))
{
UserMGRMenu.setEnabled(false);
BookMGRMenu.setEnabled(false);
BorrowBookMenu.setEnabled(false);
ReturnBookMenu.setEnabled(false);
InfoBrowseMenu.setEnabled(false);
}
}
public static void main(String args[])
{
MainWindow mainFrame=new MainWindow();
mainFrame.setDefaultCloseOperation(mainFrame.EXIT_ON_CLOSE);
}
}
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这只是一个模版你可以参考参考，有关的方法就自己写吧！
