图书管理系统---java代码

1、import java.awt.*;import java.awt.event.*;import java.sql.*;import java.util.*;import javax.swing.*;/ -class Tsgl public static void main(String args) dbframe db = new dbframe("图书管理程序");/ 图书管理系统主界面class dbframe extends Frame implements ActionListener MenuBar daohang = new MenuBar(); / 建立菜单

2、栏Menu mfile = new Menu("功能"); / 建立“功能”菜单组Menu mhelp = new Menu("帮助"); / 建立“帮助”菜单组MenuItem mdenglu = new MenuItem("登陆");MenuItem mchaxun = new MenuItem("查询");MenuItem mtianjia = new MenuItem("添加");MenuItem mshanchu = new MenuItem("删除");MenuI

3、tem mexit = new MenuItem("退出");MenuItem mhelpp = new MenuItem("关于");Denglu pdenglu=new Denglu();Ptianjia ptianjia = new Ptianjia();Pmain pmain = new Pmain();Pchaxun pchaxun = new Pchaxun();Pshanchu pshanchu = new Pshanchu();dbframe(String s) / 在窗口上添加菜单选项setTitle(s);mfile.add(mden

4、glu);mfile.add(mtianjia);mfile.add(mchaxun);mfile.add(mshanchu);mfile.add(mexit);mhelp.add(mhelpp);daohang.add(mfile);daohang.add(mhelp);setMenuBar(daohang);add(pmain);addWindowListener(new WindowAdapter() public void windowClosing(WindowEvent e) System.exit(0););setBounds(200, 200, 340, 250);setRes

5、izable(false);setVisible(true);mexit.addActionListener(this);mdenglu.addActionListener(this);mtianjia.addActionListener(this);mchaxun.addActionListener(this);mshanchu.addActionListener(this);mhelpp.addActionListener(this);validate(); / 窗口事件监听public void actionPerformed(ActionEvent e) if (e.getSource

6、() = mexit)System.exit(0);if(e.getSource()=mdenglu)removeAll();add(pdenglu);validate();if (e.getSource() = mtianjia) removeAll();add(ptianjia);validate(); / 图书添加功能if (e.getSource() = mchaxun) removeAll();add(pchaxun);validate(); / 图书查询功能if (e.getSource() = mshanchu) removeAll();add(pshanchu);validat

7、e(); / 图书删除功能if (e.getSource() = mhelpp) JOptionPane.showMessageDialog(this, "欢迎使用图书管理系统", "关于本系统",JOptionPane.INFORMATION_MESSAGE); / 各功能菜单事件监听/class Ptianjia extends Panel implements ActionListener TextField tname, tauthor, tpublish, tdate, tcomment;Label lname, lauthor, lpubli

8、sh, ldate, lcomment;Button btn;Ptianjia() setLayout(null);btn = new Button("添加"); / 创建“添加”按钮tname = new TextField();tauthor = new TextField();tpublish = new TextField();tdate = new TextField();tcomment = new TextField(); / 创建5个文本框lname = new Label("书名");lauthor = new Label("

9、作者");lpublish = new Label("出版社");ldate = new Label("出版日期");lcomment = new Label("评论");add(lname);add(tname);add(lauthor);add(tauthor);add(lpublish);add(tpublish);add(ldate);add(tdate);add(lcomment);add(tcomment);add(btn); / 添加“按钮”到窗口面板上lname.setBounds(10, 10, 70, 2

10、5);tname.setBounds(90, 10, 220, 25);lauthor.setBounds(10, 40, 70, 25);tauthor.setBounds(90, 40, 220, 25);lpublish.setBounds(10, 70, 70, 25);tpublish.setBounds(90, 70, 220, 25);ldate.setBounds(10, 100, 70, 25);tdate.setBounds(90, 100, 220, 25);lcomment.setBounds(10, 130, 70, 25);tcomment.setBounds(90

11、, 130, 220, 25);btn.setBounds(130, 160, 70, 25); / 设置按钮位置btn.addActionListener(this); / 设置按钮监听setSize(340, 250); / 设置窗口大小setBackground(Color.white); / 设置窗口背景颜色setVisible(true);validate(); public void actionPerformed(ActionEvent e) String sname = tname.getText();String sauthor = tauthor.getText();Str

12、ing spublish = tpublish.getText();String sdate = tdate.getText();String scomment = tcomment.getText();String insertstr = "insert into book values" + "(" + "'" + sname + "'"+ "," + "'" + sauthor + "'" + ","

13、; + "'" + spublish + "'" + ","+ "'" + sdate + "'" + "," + "'" + scomment + "'" + ")" / SQL语句Connection con;Statement sta;ResultSet rs;try Class.forName("oracle.jdbc.driver.OracleDri

14、ver"); / 加载JDBC驱动 catch (ClassNotFoundException ee) System.out.println("" + ee);try con = DriverManager.getConnection("jdbc:oracle:thin:localhost:1521:orcl", "sa", "orcl"); / 连接数据库sta = con.createStatement();sta.executeUpdate(insertstr); / 执行SQL语句con.clos

15、e(); / 关闭数据库tname.setText("");tauthor.setText("");tpublish.setText("");tdate.setText("");tcomment.setText(""); / 重新初始化文本框内容JOptionPane.showMessageDialog(this, "添加成功", "图书管理系统",JOptionPane.INFORMATION_MESSAGE); catch (SQLException

16、eee) System.out.println("" + eee);tname.setText("");tauthor.setText("");tpublish.setText("");tdate.setText("");tcomment.setText("");JOptionPane.showMessageDialog(this, "添加失败", "图书管理系统",JOptionPane.WARNING_MESSAGE);class

17、Pmain extends Panel / 窗口面板布局Label l1 = new Label("图书管理系统", Label.CENTER);Label l2 = new Label("计算机学院", Label.RIGHT);Label l3 = new Label("", Label.RIGHT);Label l4 = new Label("作者：JHL", Label.RIGHT);Pmain() setLayout(null);setBackground(Color.white);add(l1);add

18、(l2);add(l3);add(l4);l1.setBounds(10, 60, 320, 40);l2.setBounds(240, 120, 80, 22);l3.setBounds(240, 142, 80, 22);l4.setBounds(240, 164, 80, 22);setSize(340, 250);setVisible(true);validate();class Pchaxun extends Panel implements ActionListener / 图书查询Choice cchaxun;TextField tchaxun;Button btnchaxun;

19、TextArea tachaxun;Pchaxun() setLayout(null);cchaxun = new Choice(); / 创建下拉菜单cchaxun.add("书名");cchaxun.add("作者");cchaxun.add("出版社");tchaxun = new TextField();btnchaxun = new Button("查询"); / 创建按钮tachaxun = new TextArea(); / 创建多行文本框add(cchaxun);add(tchaxun);add(b

20、tnchaxun);add(tachaxun);tchaxun.setText("");cchaxun.setBounds(10, 10, 65, 20);tchaxun.setBounds(85, 10, 180, 20);btnchaxun.setBounds(275, 10, 40, 20);tachaxun.setBounds(10, 40, 305, 145);cchaxun.select(0); / 下拉菜单的初始选项setSize(340, 250); / 设置窗口大小setBackground(Color.white);setVisible(true);bt

21、nchaxun.addActionListener(this);validate();public void actionPerformed(ActionEvent e) int i = cchaxun.getSelectedIndex();String s = tchaxun.getText();if (s.equals("")JOptionPane.showMessageDialog(this, "查询内容不能为 空", "查询系统",JOptionPane.WARNING_MESSAGE);else Connection con

22、;Statement sql;ResultSet rs;try Class.forName("oracle.jdbc.driver.OracleDriver"); / 加载JDBC驱动 catch (ClassNotFoundException ee) System.out.println("" + ee);try con = DriverManager.getConnection("jdbc:oracle:thin:localhost:1521:orcl", "sa", "orcl");/ 连

23、接数据库sql = con.createStatement();if (i = 0) / 根据下拉菜单的选项执行不同的SQL语句rs = sql.executeQuery("select * from book where bookName ="+ "'" + s + "'");else if (i = 1)rs = sql.executeQuery("select * from book where author ="+ "'" + s + "'&qu

24、ot;);elsers = sql.executeQuery("select * from book where publisher ="+ "'" + s + "'");tachaxun.setText("");String panduan = "false"while (rs.next() panduan = "true"tachaxun.append("书名:" + rs.getString(1) + "n");t

25、achaxun.append("作者:" + rs.getString(2) + "n");tachaxun.append("出版社:" + rs.getString(3) + "n");tachaxun.append("出版日期:" + rs.getString(4) + "n");tachaxun.append("评论:" + rs.getString(5) + "n"); / 显示查询到的图书信息rs = sql.executeQ

26、uery("select count(*) from book"); / 统计所有图书数while (rs.next() tachaxun.append("图书馆暂有" + rs.getString(1) + "本图书"); / 显示所有图书数量信息con.close(); / 关闭数据库if (panduan.equals("false")JOptionPane.showMessageDialog(this, "没有该记录", "查询系统",JOptionPane.WARN

27、ING_MESSAGE); catch (SQLException eee) System.out.println(eee);class Pshanchu extends Panel implements ActionListener / 删除功能模块Choice cshanchu;TextField tshanchu;Button btnshanchu;Label l1 = new Label("", Label.CENTER);Label l2 = new Label("计算机学院", Label.RIGHT);Label l3 = new Labe

28、l("", Label.RIGHT);Label l4 = new Label("作者：ZCS", Label.RIGHT);Pshanchu() setLayout(null);cshanchu = new Choice(); / 创建下拉菜单cshanchu.add("书名");tshanchu = new TextField();btnshanchu = new Button("删除"); / 创建按钮add(cshanchu);add(tshanchu);add(btnshanchu);add(l1);ad

29、d(l2);add(l3);add(l4); / 添加标签、按钮等到窗口面板tshanchu.setText("");cshanchu.setBounds(10, 10, 65, 20);tshanchu.setBounds(85, 10, 180, 20);btnshanchu.setBounds(275, 10, 40, 20);l1.setBounds(10, 40, 300, 40);l2.setBounds(240, 130, 80, 22);l3.setBounds(240, 152, 80, 22);l4.setBounds(240, 174, 80, 22)

30、;cshanchu.select(0);setSize(340, 250); / 设置窗口大小setBackground(Color.white);setVisible(true);btnshanchu.addActionListener(this);validate();public void actionPerformed(ActionEvent e) String s = tshanchu.getText();if (s.equals("")JOptionPane.showMessageDialog(this, "请输入要删除的图书", "

31、;删除功能",JOptionPane.WARNING_MESSAGE);else Connection con;Statement sql;ResultSet rs;try Class.forName("oracle.jdbc.driver.OracleDriver"); catch (ClassNotFoundException ee) System.out.println("" + ee);try con = DriverManager.getConnection("jdbc:oracle:thin:localhost:1521:

32、orcl", "sa", "orcl");sql = con.createStatement();rs = sql.executeQuery("select * from book where bookName ="+ "'" + s + "'");if (!rs.next()JOptionPane.showMessageDialog(this, "没有该图书", "删除功能",JOptionPane.WARNING_MESSAG

33、E);else int n = JOptionPane.showConfirmDialog(this, "确认删除吗?","删除功能", JOptionPane.YES_NO_OPTION);if (n = JOptionPane.YES_OPTION) sql.executeUpdate("delete from book where bookName ="+ "'" + s + "'");JOptionPane.showMessageDialog(this, "删除成功", "删除功能",JOptionPane.INFORMATION_MESSAGE);tshanchu.setText(""); elsetshanchu.setText("");con.close(); ca