mainwindow.java

JAVA实现的图书管理系统

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,BookDeleteMenuItem,
	BorrowBookMenuItem,BorrowInfoMenuItem,ReturnBookMenuItem,ReturnInfoMenuItem,
	BookListMenuItem,BorrowBookListMenuItem,UserListMenuItem;
	JLabel titleLabel,AuthorLabel,DateLabel;
	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("修改用户");
		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);

		titleLabel=new JLabel(new ImageIcon(".\\pic.jpg"));
		c=getContentPane();
		c.setLayout(new BorderLayout());
		panel1=new JPanel();
		panel1.setLayout(new BorderLayout());
		panel1.add(titleLabel,BorderLayout.CENTER);
    	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()=="修改用户")
		{
			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()=="删除书籍")
		{
			BookDelete BookDeleteFrame=new BookDelete();
			Dimension FrameSize=BookDeleteFrame.getPreferredSize();
			Dimension MainFrameSize=getSize();
			Point loc=getLocation();
			BookDeleteFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
			(MainFrameSize.height-FrameSize.height)/2+loc.y);
			BookDeleteFrame.pack();
			BookDeleteFrame.show();
		}
		else if(e.getActionCommand()=="书籍出借")
		{
			BorrowBook BorrowBookFrame=new BorrowBook();
			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()=="出借信息修改")
		{
			BorrowInfo BorrowInfoFrame=new BorrowInfo();
			Dimension FrameSize=BorrowInfoFrame.getPreferredSize();
			Dimension MainFrameSize=getSize();
			Point loc=getLocation();
			BorrowInfoFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
			(MainFrameSize.height-FrameSize.height)/2+loc.y);
			BorrowInfoFrame.pack();
			BorrowInfoFrame.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()=="书籍还入信息修改")
		{
			ReturnInfo ReturnInfoFrame=new ReturnInfo();
			Dimension FrameSize=ReturnInfoFrame.getPreferredSize();
			Dimension MainFrameSize=getSize();
			Point loc=getLocation();
			ReturnInfoFrame.setLocation((MainFrameSize.width-FrameSize.width)/2+loc.x,
			(MainFrameSize.height-FrameSize.height)/2+loc.y);
			ReturnInfoFrame.pack();
			ReturnInfoFrame.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();
		
		
	}
}