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图书管理系统--java代码

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java项目开发实例图书信息管理系统开发及源码

java项目开发实例图书信息管理系统开发及源码

j a v a项目开发实例图书信息管理系统开发及源码集团文件发布号：（9816-UATWW-MWUB-WUNN-INNUL-DQQTY-图书信息管理系统一、系统功能概述：根据图书信息管理系统的特点，可以将本系统分为2大功能模块，分别为：基础数据维护、系统数据维护。

本系统各个部分及其包括的具体功能模块如下图所示：二、数据库设计：图书信息表：图书类别表：用户信息表：读者信息表：三、系统源代码：ewInstance();conn = (dbUrl, dbUser, dbPwd);"数据库连接成功！");}elsereturn;} catch (Exception ee) {();}}xecuteQuery(sql);} catch (SQLException e) {();return null;} finally {}}xecuteUpdate(sql);} catch (SQLException e) {quals("[Microsoft][SQLServer 2000 Driver for JDBC][SQLServer]DELETE 语句与 COLUMN REFERENCE 约束'FK_TB_BORRO_REFERENCE_TB_BOOKI' 冲突。

该冲突发生于数据库'db_library'，表 'tb_borrow', column 'bookISBN'。

"))return -1;} finally {}}etLayout(borderLayout);setIconifiable(true); dd(panel);final JLabel label_2 = new JLabel();("图书编号：");(label_2);ISBN = new JTextField("请输入13位书号",13);(new MyDocument(13)); dd(panel_1, ;final FlowLayout flowLayout = new FlowLayout();(2);(30);;(flowLayout);buttonadd= new JButton();(new addBookActionListener()); ("添加");(buttonadd);buttonclose = new JButton();(new CloseActionListener());("关闭");(buttonclose);final JLabel label_5 = new JLabel(); ImageIcon bookAddIcon=(""); (bookAddIcon);(new Dimension(400, 80));(new LineBorder, 1, false)); getContentPane().add(label_5, ; ("新书定购(LOGO图片)");setVisible(true);rim()).isEmpty()){(null, "添加书号重复！");return;}}}class ISBNkeyListener extends KeyAdapter {public void keyPressed(final KeyEvent e) {if () == 13){();}}}class CloseActionListener implements ActionListener { ength()==0){(null, "书号文本框不可以为空");return;}if().length()!=13){(null, "书号文本框输入位数为13位");return;}if().length()==0){(null, "图书名称文本框不可以为空");return;}if().length()==0){(null, "作者文本框不可以为空");return;}if().length()==0){(null, "出版日期文本框不可以为空");return;}if().length()==0){(null, "单价文本框不可以为空");return;}String ISBNs=().trim();rim();String bookNames=().trim();String writers=().trim();String publishers=(String)().trim();String pubDates=().trim();String prices=().trim();int i=(ISBNs,bookTypes, bookNames, writers, translators, publishers, if(i==1){(null, "添加成功");doDefaultCloseAction();}}}class NumberListener extends KeyAdapter { public void keyTyped(KeyEvent e) {String numStr="09."+(char)8;if())<0){();}}}}et()));results[i][1]=booktypename;results[i][2]=();results[i][3]=();results[i][4]=();results[i][5]=();results[i][6]=();results[i][7]=();}return results;}public BookModiAndDelIFrame() {super();final BorderLayout borderLayout = new BorderLayout();getContentPane().setLayout(borderLayout);setIconifiable(true);setClosable(true);setTitle("图书信息修改与删除");setBounds(100, 100, 640, 406);dd(panel_1, ;final FlowLayout flowLayout = new FlowLayout();(2);(30);;(flowLayout);final JButton button = new JButton();(new addBookActionListener());("修改");(button);final JButton button_2 = new JButton();(new ActionListener(){public void actionPerformed(final ActionEvent e) {String ISBNs=().trim();int i=(ISBNs);if(i==1){(null, "删除成功");Object[][] results=getFileStates());dd(headLogo, ;final JPanel panel_2 = new JPanel();final BorderLayout borderLayout_1 = new BorderLayout();(5);(borderLayout_1);(new EmptyBorder(5, 10, 5, 10));getContentPane().add(panel_2);final JScrollPane scrollPane = new JScrollPane();(scrollPane);Object[][] results=getFileStates());columnNames = new String[]{"图书编号", "图书类别", "图书名称", "作者", "译者", "出版商", "出版日期","价格"};table = new JTable(results,columnNames);;oString().trim();typeids = (selRow, 1).toString().trim();bookNames = (selRow, 2).toString().trim();writers = (selRow, 3).toString().trim();translators = (selRow, 4).toString().trim();publishers = (selRow, 5).toString().trim();dates = (selRow, 6).toString().trim();prices = (selRow, 7).toString().trim();(ISBNs);ength()==0){(null, "书号文本框不可以为空或则输入数字不可以大于13个");return;}if().length()!=13){(null, "书号文本框输入位数为13位");return;}if().length()==0){(null, "图书名称文本框不可以为空");return;}if().length()==0){(null, "作者文本框不可以为空");return;}if().length()==0){(null, "出版人文本框不可以为空");}ength()==0){(null, "出版日期文本框不可以为空");return;}if().length()==0){(null, "单价文本框不可以为空");return;}String ISBNs=().trim();rim();String bookNames=().trim();String writers=().trim();String publishers=().trim();String pubDates=().trim();String prices=().trim();int i=(ISBNs, bookTypes, bookNames, writers, translators, publishers, (pubDates), (prices));if(i==1){(null, "修改成功");Object[][] results=getFileStates());+(char)8;();}}}}dd(panel, ;final JLabel label_4 = new JLabel();ImageIcon bookTypeAddIcon=("");(bookTypeAddIcon);(new Dimension(360, 80));("图书类别图片（400*80）");(label_4);final JPanel panel_3 = new JPanel();(new FlowLayout());getContentPane().add(panel_3, ;final JLabel label_1 = new JLabel();(new Dimension(20, 50));(label_1);final JLabel label_2 = new JLabel();(new Dimension(90, 20));("图书类别名称：");(label_2);(new MyDocument(20));(30);(bookTypeName);final JButton button = new JButton();("保存");(new ActionListener(){public void actionPerformed(final ActionEvent e) { if().length()==0){(null, "图书类别文本框不可为空");return;}int i=().trim());if(i==1){(null, "添加成功！");doDefaultCloseAction();}else{(null, "图书类别名已存在，请重新输入！");}}});(button);final JButton buttonDel = new JButton();(new ActionListener(){public void actionPerformed(final ActionEvent e) {doDefaultCloseAction();}});(buttonDel);setVisible(true);}class NumberListener extends KeyAdapter {public void keyTyped(KeyEvent e) {String numStr="09."+(char)8;if())<0){();}}}}dd(panel, ;final JLabel logoLabel = new JLabel();ImageIcon bookTypeModiAndDelIcon=("");(bookTypeModiAndDelIcon);(new Dimension(400, 80));(logoLabel);final JPanel panel_1 = new JPanel(); getContentPane().add(panel_1);final JScrollPane scrollPane = new JScrollPane(); (new Dimension(400, 130));(scrollPane);model=new DefaultTableModel();Object[][] results=getFileStates());(results,columnNames);table = new JTable();(model);(new TableListener());(table);final JPanel panel_2 = new JPanel();(panel_2);final GridLayout gridLayout = new GridLayout(0, 6);(5);(5);(gridLayout);(new Dimension(400, 26));final JLabel label = new JLabel();("类别编号：");BookTypeId = new JTextField();(false);(BookTypeId);final JLabel label_1 = new JLabel();("类别名称：");(label_1);comboBox = new JComboBox();bookTypeModel= (DefaultComboBoxModel)();oString().trim());(selRow, 1).toString().trim());}}class ButtonAddListener implements ActionListener{ public void actionPerformed(ActionEvent e){Object selectedItem = ();int i=().trim(),());if(i==1){(null, "修改成功");Object[][] results=getFileStates());(results,columnNames);(model);}}class ButtonDelListener implements ActionListener{ public void actionPerformed(ActionEvent e){int i=().trim());if(i==1){(null, "删除成功");Object[][] results=getFileStates());(results,columnNames);(model);}}}class CloseActionListener implements ActionListener { etLayout(borderLayout);setTitle("图书馆管理系统登录");setBounds(100, 100, 285, 194);final JPanel panel = new JPanel();(new BorderLayout());(new EmptyBorder(0, 0, 0, 0));getContentPane().add(panel);final JPanel panel_2 = new JPanel();final GridLayout gridLayout = new GridLayout(0, 2);(20);(gridLayout);(panel_2);final JLabel label = new JLabel();;(new Dimension(0, 0));(new Dimension(0, 0));(label);("用户名：");username = new JTextField(20);(new Dimension(0, 0));(username);final JLabel label_1 = new JLabel(); ;(label_1);("密码：");password = new JPasswordField(20); (new MyDocument(6));('*');etSystemLookAndFeelClassName());new LoginIFrame();dd(toolBar, ; final JLabel label = new JLabel(); (0, 0, 0, 0);().getSize());("<html><img width=" + + " height="+ + " src='"+ ().getResource("/")+ "'></html>");}});(label,new Integer);getContentPane().add(DESKTOP_PANE);}/*** 创建工具栏** @return JToolBar*/private JToolBar createToolBar() { etLayout(new GridBagLayout());setBounds(100, 100, 300, 228);final JLabel label_4 = new JLabel();(new Font("", , 14));;("<html>注：每个<b>操作员</b>只能修改自己的密码。

java实现简单的图书管理系统

java实现简单的图书管理系统

java实现简单的图书管理系统本⽂实例为⼤家分享了java实现简单的图书管理系统的具体代码，供⼤家参考，具体内容如下⼀、项⽬分布Book类: 定义了书的⼀些属性（书名，作者，价格，分类，状态）并且写了属性的get、set⽅法Library类: 写了登录函数（1、普通⽤户，2、管理员，3、退出系统），Person类：定义的⼈的属性（姓名，性别，年龄）并且写了属性的get、set⽅法，定义了⼀些书。

operate接⼝：操作的接⼝，操作⽅法：查询/查阅，删除/借阅，增加/还书，显⽰书籍列表Root类：继承了Person类，实现operate（查阅，删除，增加，显⽰书籍列表）接⼝User类：继承了Person类，实现operate（查询，借阅，还书，显⽰书籍列表）接⼝Main类：Main中的主函数开启整个项⽬。

模型图：声明：本项⽬只是⼀个简单的⾯向对象⼊门⼩项⽬，有⼀些基础理论需要掌握，⽐如对象，类，抽象类，接⼝，继承，实现，数组及数组的操作，for循环，while循环，switch语句，if语句。

⼆、代码展⽰1.Book类public class Book {private String name; //书名private String author; //作者public double price; //价格private String category; //分类private boolean state; //状态 true-未借出 false-已借出//通过构造函数给定书的属性public Book(String name,String author,double price,String category,boolean state){this.author = author; = name;this.price = price;this.category = category;this.state = state;}public Book() { //默认10本书this(10);}public Book(int i) {Person.books = new Book[i];}//属性的获取和设置public String getName() {return name;}public void setName(String name) { = name;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}public double getPrice() {return price;}public void setPrice(double price) {this.price = price;}public String getCategory() {return category;}public void setCategory(String category) {this.category = category;}public boolean getState() {return state;}public void setState(boolean state) {this.state = state;}}2.Library类import java.util.Scanner;public class Library {Scanner sc = new Scanner(System.in);//登录函数：显⽰登录界⾯进⾏选择登录public void login() {int count = 0;Person p = null;while (count < 2) {System.out.println("===============jewel图书管理系统===============");System.out.println("欢迎讨论指正！ qq505791225"+"\n");System.out.println("请登录：1.普通⽤户 2.管理员登录 3.退出系统");int n = sc.nextInt();//通过输⼊的值进⾏登录判断if (n == 3) {return;}switch (n) {case 1:System.out.println("请输⼊姓名：");String Uname = sc.next();System.out.println("请输⼊性别：");String Usex = sc.next();System.out.println("请输⼊年龄：");int Uage = sc.nextInt();p = new User(Uname,Usex,Uage); //构造普通⽤户对象System.out.println("登录成功！");System.out.println("当前普通⽤户："+"姓名：" + p.getName() + " "+"性别：" + p.getSex() + " "+"年龄"+ p.getAge()); //普通⽤户循环操作while (true) {System.out.println("请输⼊你的操作： 1.查询书籍 2.借阅书籍 3.归还书籍 4.显⽰书籍列表 5.退出");int i = sc.nextInt();if (i == 5) {System.out.println("您已成功退出！");break;}else {p.operate(); //调⽤普通⽤户的操作⽅法}}break;case 2:System.out.println("请输⼊管理员姓名：");String Rname = sc.next();System.out.println("请输⼊性别：");String Rsex = sc.next();System.out.println("请输⼊年龄：");int Rage = sc.nextInt();p = new Root(Rname,Rsex,Rage);//构造管理员对象System.out.println("登录成功！");System.out.println("当前管理员："+"姓名：" + p.getName() + " "+"性别：" + p.getSex() + " "+"年龄" + p.getAge()); while (true) {System.out.println("请输⼊你的操作： 1.整理书籍 2.查阅书籍 3.增加书籍 4.删除书籍 5.显⽰书籍列表 6.退出");int j = sc.nextInt();if (j == 6) {System.out.println("您已成功退出！");break;}else{p.operate();//调⽤管理员的操作⽅法}} break;}}}}3.Person类（抽象类）abstract class Person {public String name;public String sex;public int age;/*** 默认定义10本书籍。

图书管理系统java代码

图书管理系统java代码

项目下的包及类:数据库bookcollection表book（bookID设置为自增)表user表userbook登录注册页面：package bookDB;import java.awt。

＊；import java。

awt.event。

ActionEvent;import java.awt。

event。

ActionListener;import javax.swing.＊；public class RLogin extends JFrame implements ActionListener｛//Container c；String sex；int type；// 创建登录组件JLabel jlabel0 = new JLabel（”登录：”)；JLabel jLabel1 = new JLabel（"学号（或职工号）：");JLabel jLabel2 = new JLabel(”密码：")；JTextField userID1 = new JTextField（10）；JTextField password1 = new JTextField(10)；JButton btn_ok1 = new JButton（); // 创建登录确定按钮// 创建注册组件JLabel jlabel00 = new JLabel("注册:”);JLabel jLabel3 = new JLabel("姓名:")；JLabel jLabel4 = new JLabel(”性别：”）;JLabel jLabel5 = new JLabel（"密码:");JLabel jLabel6 = new JLabel("学号(或职工号）：");JLabel jLabel7 = new JLabel（"院系:"）;JLabel jLabel8 = new JLabel（"专业:");JLabel jLabel9 = new JLabel(”用户类别：");JTextField name = new JTextField(10）;JTextField password2 = new JTextField(10)；JTextField ID2 = new JTextField（10）；JTextField department = new JTextField(10）；JTextField major = new JTextField（10)；JRadioButton rb1[］; // 单选按钮，用于设定性别JRadioButton rb2[];//用户类型选择JButton btn_ok2 = new JButton（)；// 创建注册确定按钮// 构造函数public RLogin(）{super（"登录/注册:"）; // 调用JFrame的构造函数String[] sex = ｛"男”, ”女" ｝;String[］type = ｛"本科生"，"研究生"，”老师"｝;JPanel panel1 = new JPanel(new FlowLayout());// 使用JPanel类创建面板，该类是JComponent类的子类,后者又扩展Container//每个JPanel都是一个Container,因此，可以向JPanel添加包括面板在内的组件//this。

用Java写一个图书管理系统的代码

用Java写一个图书管理系统的代码

用Java写一个图书管理系统的代码```import java.util.*;public class BookManager {// Create a list for book storageprivate List<Book> books;public BookManager() {books = new ArrayList<Book>();}// Add a book to the listpublic void addBook(Book book) {books.add(book);}// Remove a book from the listpublic void removeBook(Book book) {books.remove(book);}// Get all books in the listpublic List<Book> getAllBooks() {return books;}// Search a book by book namepublic List<Book> searchByName(String name) {List<Book> resultBooks = new ArrayList<Book>();for (Book book : books) {if (book.getName().equals(name)) {resultBooks.add(book);}}return resultBooks;}// Search a book by author namepublic List<Book> searchByAuthor(String author) { List<Book> resultBooks = new ArrayList<Book>(); for (Book book : books) {if (book.getAuthor().equals(author)) {resultBooks.add(book);}}return resultBooks;}}class Book {private String name;private String author;public Book(String name, String author) { = name;this.author = author;}public String getName() {return name;}public void setName(String name) { = name;}public String getAuthor() {return author;}public void setAuthor(String author) { this.author = author;}}```。

Java图书管理系统-附源码

Java图书管理系统-附源码
图书信息查询：
图书信息删除：
图书信息显示：
图书借阅：
图书归还：
分析总结:
本程序在数据库设计方面可以改为多张表存储的方式，用三张表来记录图书信息，借阅关系和学生信息，这样可以减少数据冗余，还可以增加一些其他功能，比如图书挂失等功能。由于刚刚接触到Java界面设计，所以本程序在界面设计方面还有有待改进的地方。
JMenuItem itemDelete = new JMenuItem();
JMenuItem itemSelect = new JMenuItem();
JMenuItem itБайду номын сангаасmBook = new JMenuItem();
JMenuItem itemReturn = new JMenuItem();
图书ID，图书名称，图书所有者，图书的状态，图书使用者（允许为空）均为varchar(50)类型，在Java中可以方便的查询。图书存储信息的具体内容如下图所示：
功能模块:
程序设计:
主框架设计：
主框架上方包含三个按钮，分别是“系统管理”、“图书信息管理”和“图书流通管理”，定义JMenuBar类的对象、JMenu类的对象和JMenuItem类的对象，分别表示菜单栏、菜单组和菜单选项，然后调用初始化函数，将不同类的对象通过setText()函数设定不同的文本，然后将其添加到窗口容器中。对每个按钮分别添加不同的消息监听，响应相应的消息，调用不同的类完成不同的功能。消息监听功能详见源代码bookMain类。
删除图书信息模块：
调用bookDel类的构造函数产生一个该类的对象，在初始化函数中显示信息输入对话框，提示用户输入要删除图书的ID。完成输入后，点击确定按钮，消息监听模块将调用bookBean的构造函数产生一个该类的对象，通过该对象调用bookBean的bookDel函数，执行删除的SQL语句，通过delete语句完成图书信息的删除功能。

图书管理系统源码(java实现)

图书管理系统源码(java实现)

【图书管理系统】【MainPro包】1.系统登录页面public class Login extends Frame {private static final long serialVersionUID = -1758475247807861408L;TextField text_user;TextField text_pass;public Login() {1 this.setTitle("登录");this.setLayout(null);//默认流式布局this.setSize(260, 170);/* 定义标签与文本框*/Label lbUser = new Label("用户名：");text_user = new TextField();Label lbPass = new Label("密码：");text_pass = new TextField();Button btn_ok = new Button("确定");Button btn_cancel = new Button("取消");lbUser.setBounds(40, 53, 60, 20);//x,y,width,heightlbPass.setBounds(40, 83, 60, 20);text_user.setBounds(100, 50, 120, 20);text_pass.setBounds(100, 80, 120, 20);btn_ok.setBounds(45, 120, 80, 25); // 确定按钮btn_cancel.setBounds(135, 120, 80, 25); // 取消按钮/* 添加标签与文本框*/add(lbUser);add(lbPass);add(text_user);add(text_pass);add(btn_ok);add(btn_cancel);setLocationRelativeTo(null); // 使窗体在屏幕上居中放置this.setVisible(true); // 使窗体可见btn_ok.addActionListener((new ActionListener() {public void actionPerformed(ActionEvent e) {btn_okActionPerformed(e);//自定义确定按钮触发的实施过程}}));btn_cancel.addActionListener((new ActionListener() {public void actionPerformed(ActionEvent e) {DbOp.Close(); // 关闭数据库System.exit(0);}}));this.addWindowListener(new WindowAdapter() {/* 关闭窗口*/// 重写windowClosing()方法public void windowClosing(WindowEvent e) {DbOp.Close(); // 关闭数据库System.exit(0);} }); }public void btn_okActionPerformed(ActionEvent e) {String user = text_user.getText();String pass = text_pass.getText();String is_admin;// 如果用户名或密码任一为空，则终止后续操作if (user.equals("")||pass.equals("")) {JOptionPane.showMessageDialog(null, "用户名或密码不能为空！");return;}try {// 核对用户名和密码String sql = "select * from user where username=" + "'" + user + "' and password=" + "'" + pass + "'";ResultSet rs = DbOp.executeQuery(sql);// 如果此用户存在，则记录其状态（否：不是管理员，是：是管理员）if (rs.next()) {is_admin = rs.getString("is_admin");} else {JOptionPane.showMessageDialog(null, "用户名或密码不正确！");return;}GlobalVar.login_user = user; // 记录登录的用户名ShowMain show = new ShowMain(); // 调用主程序// 只有管理员才能使用"基础管理"和"借阅管理"菜单show.setRights(is_admin);// 释放窗体及其全部组件的屏幕资源，即使释放登录窗体dispose(); // 释放当前窗体} catch (SQLException e1) {JOptionPane.showMessageDialog(null, "用户数据库有误！");}}}2.系统首页页面public class ShowMain extends Frame {private static final long serialVersionUID = 5003296786441785470L;MenuBar menuBar;Menu jcwh, jcwh_book, jcwh_reader;//基础维护：图书维护、读者维护Menu jywh, cxgl, xtgl;//借阅维护、查询管理、系统管理MenuItemjcwh_book_add,jcwh_book_update,jcwh_book_delete,jcwh_reader_add,jcwh_reader_update,jcwh_reader_delete;MenuItem jywh_borrow, jywh_back;MenuItem cxgl_book, cxgl_reader;MenuItem xtgl_update_pass, xtgl_exit;public void setRights(String rights) {// 如果不是管理员，则禁止用户维护图书信息和读者信息以及禁止进行借阅管理，即只能查询if (rights.equals("否")) {jywh.setEnabled(false);jcwh.setEnabled(false);}}public ShowMain() {setTitle("图书管理系统");setLayout(new BorderLayout());setSize(640, 480);menuBar = new MenuBar();jcwh = new Menu("基础维护");// 基础维护菜单jcwh_book = new Menu("图书维护");// 图书维护菜单jcwh_book_add = new MenuItem("添加");// 添加图书菜单jcwh_book_update = new MenuItem("修改");// 修改图书菜单jcwh_book_delete = new MenuItem("删除");// 删除图书菜单jcwh_reader = new Menu("读者维护");// 读者维护菜单jcwh_reader_add = new MenuItem("添加读者");// 添加读者菜单jcwh_reader_update = new MenuItem("修改读者");jcwh_reader_delete = new MenuItem("删除读者");jywh = new Menu("借阅管理");jywh_borrow = new MenuItem("借书管理");jywh_back = new MenuItem("还书管理");cxgl = new Menu("查询管理");cxgl_book = new MenuItem("图书查询");cxgl_reader = new MenuItem("读者查询");xtgl = new Menu("系统管理");xtgl_update_pass = new MenuItem("修改密码");xtgl_exit = new MenuItem("退出系统");// 添加图书菜单jcwh_book.add(jcwh_book_add);jcwh_book.add(jcwh_book_update);jcwh_book.add(jcwh_book_delete);jcwh.add(jcwh_book);jcwh_reader.add(jcwh_reader_add);jcwh_reader.add(jcwh_reader_update);jcwh_reader.add(jcwh_reader_delete);jcwh.add(jcwh_reader);jywh.add(jywh_borrow);jywh.add(jywh_back);cxgl.add(cxgl_book);cxgl.add(cxgl_reader);xtgl.add(xtgl_update_pass);xtgl.add(xtgl_exit);menuBar.add(jcwh);menuBar.add(jywh);menuBar.add(cxgl);menuBar.add(xtgl);setMenuBar(menuBar);setLocationRelativeTo(null); // 使窗体在屏幕上居中放置setVisible(true); // 使窗体可见jcwh_book_add.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new BookManeger("save");} });jcwh_book_update.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new BookManeger("update");} });jcwh_book_delete.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new BookManeger("delete");} });jcwh_reader_add.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new ReaderManeger("save");} });jcwh_reader_update.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new ReaderManeger("update");} });jcwh_reader_delete.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new ReaderManeger("delete");} });jywh_borrow.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new Borrow();} });jywh_back.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new Back();} });cxgl_book.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new BookQuery();} });cxgl_reader.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new ReaderQuery();} });xtgl_update_pass.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {new UpdatePassword();} });xtgl_exit.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {DbOp.Close(); // 关闭数据库System.exit(0);}});this.addWindowListener(new WindowAdapter() {/* 关闭窗口*/// 重写windowClosing()方法public void windowClosing(WindowEvent e) {DbOp.Close(); // 关闭数据库System.exit(0);}});}}3.图书管理public class BookManeger extends JFrame {private static final long serialVersionUID = 377287301994613384L;private Label lbbookid_c = new Label("图书编号");private TextField tf_bookid_c = new TextField();private Label lbbookid = new Label("图书编号");private TextField tf_bookid = new TextField();private Label lbbookname = new Label("图书名称");private TextField tf_bookname = new TextField();private Label lbbooktype = new Label("图书类别");private Choice tf_booktype = new Choice();private Label lbauthor = new Label("作者");private TextField tf_author = new TextField();private Label lbtranslator = new Label("译者");private TextField tf_translator = new TextField();private Label lbpublisher = new Label("出版社");private TextField tf_publisher = new TextField();private Label lbpublish_time = new Label("出版时间");private TextField tf_publish_time = new TextField();private Label lbprice = new Label("定价");private TextField tf_price = new TextField();private Label lbstock = new Label("库存数量");private TextField tf_stock = new TextField();private Button queryBtn = new Button("查询");private Button saveBtn = new Button("保存");private Button closeBtn = new Button("关闭");private String optionStr;BookManeger(String str) {optionStr = str;ggFrame(optionStr);saveBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("bookid", tf_bookid);map.put("bookname", tf_bookname);map.put("booktype", tf_booktype);map.put("author", tf_author);map.put("translator", tf_translator);map.put("publisher", tf_publisher);map.put("publish_time", tf_publish_time);map.put("price", tf_price);map.put("stock", tf_stock);int i ;if(optionStr.equals("delete")){i = Jcwh.btn_delActionPerformed(e, map);}else{i = Jcwh.btn_saveActionPerformed(e, map,optionStr);}if (i == 1) {String showInfo = "";if(optionStr.equals("save")){showInfo = "图书添加成功！";}else if(optionStr.equals("update")){showInfo = "图书修改成功！";}else if(optionStr.equals("delete")){showInfo = "图书删除成功！";}JOptionPane.showMessageDialog(null, showInfo);// 清空全部文本框clearAllTextfield();}}});closeBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {dispose(); // 释放当前窗体}});/* 关闭窗口*/this.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) { // 关闭当前窗口dispose(); // 释放当前窗体}});}private void ggFrame(String str) {setLayout(null);setSize(500, 320);lbbookid.setBounds(50, 40, 50, 20); // 图书编号tf_bookid.setBounds(110, 40, 100, 20);lbbookname.setBounds(240, 40, 50, 20); // 图书名称tf_bookname.setBounds(300, 40, 100, 20);lbbooktype.setBounds(50, 80, 50, 20); // 图书类别tf_booktype.setBounds(110, 80, 100, 20);tf_booktype.add("科技");tf_booktype.add("文学");tf_booktype.add("社科");tf_booktype.add("其他");lbauthor.setBounds(240, 80, 50, 20); // 作者tf_author.setBounds(300, 80, 100, 20);lbtranslator.setBounds(50, 120, 50, 20); // 设置译者tf_translator.setBounds(110, 120, 100, 20);lbpublisher.setBounds(240, 120, 50, 20); // 出版社tf_publisher.setBounds(300, 120, 100, 20);lbpublish_time.setBounds(50, 160, 50, 20); // 出版时间tf_publish_time.setBounds(110, 160, 100, 20);lbprice.setBounds(240, 160, 50, 20); // 定价tf_price.setBounds(300, 160, 100, 20);lbstock.setBounds(50, 200, 50, 20); // 库存数量tf_stock.setBounds(110, 200, 100, 20);saveBtn.setBounds(150, 240, 80, 25); // 保存按钮closeBtn.setBounds(280, 240, 80, 25);// 关闭按钮if(str.equals("save")){setTitle("添加图书");}else if(str.equals("update")){setTitle("修改图书");lbbookid_c.setBounds(100, 10, 50, 20); // 图书编号tf_bookid_c.setBounds(160, 10, 100, 20);tf_bookid.setEditable(false);//修改的图书信息中id不可以修改queryBtn.setBounds(280, 10, 80, 20); // 查询按钮add(lbbookid_c);add(tf_bookid_c);add(queryBtn);queryBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("bookid", tf_bookid_c);Book book = (Book)Jcwh.btn_queryActionPerformed(e,map).get("book");if(book!=null){tf_bookid.setText(book.getId());tf_bookname.setText(book.getBookname());// 将Choice的选定项设置为其名称等于指定字符串的项tf_booktype.select(book.getBooktype());tf_author.setText(book.getAuthor());tf_translator.setText(book.getTranslator());tf_publisher.setText(book.getPublisher());tf_publish_time.setText(book.getPublish_time().toString());tf_price.setText(String.valueOf(book.getPrice()));tf_stock.setText(String.valueOf(book.getStock()));}}});saveBtn.setLabel("修改");//将按钮显示文字修改成“修改”}else if(str.equals("delete")){setTitle("删除图书");lbbookid_c.setBounds(100, 10, 50, 20); // 图书编号tf_bookid_c.setBounds(160, 10, 100, 20);tf_bookid.setEditable(false);//修改的图书信息中id不可以修改queryBtn.setBounds(280, 10, 80, 20); // 查询按钮add(lbbookid_c);add(tf_bookid_c);add(queryBtn);queryBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("bookid", tf_bookid_c);Book book = (Book)Jcwh.btn_queryActionPerformed(e,map).get("book");if(book!=null){tf_bookid.setText(book.getId());tf_bookname.setText(book.getBookname());// 将Choice的选定项设置为其名称等于指定字符串的项tf_booktype.select(book.getBooktype());tf_author.setText(book.getAuthor());tf_translator.setText(book.getTranslator());tf_publisher.setText(book.getPublisher());tf_publish_time.setText(book.getPublish_time().toString());tf_price.setText(String.valueOf(book.getPrice()));tf_stock.setText(String.valueOf(book.getStock()));}}});saveBtn.setLabel("删除");//将按钮显示文字修改成“删除”}add(lbbookid);add(tf_bookid);add(lbbookname);add(tf_bookname);add(lbbooktype);add(tf_booktype);add(lbauthor);add(tf_author);add(lbtranslator);add(tf_translator);add(lbpublisher);add(tf_publisher);add(lbpublish_time);add(tf_publish_time);add(lbprice);add(tf_price);add(lbstock);add(tf_stock);add(saveBtn);add(closeBtn);setLocationRelativeTo(null); // 使窗体在屏幕上居中放置setVisible(true); // 使窗体可见}private void clearAllTextfield() {tf_bookid.setText("");tf_bookname.setText("");tf_author.setText("");tf_translator.setText("");tf_publisher.setText("");tf_publish_time.setText("");tf_price.setText("");tf_stock.setText("");}}4.读者管理public class ReaderManeger extends JFrame {private static final long serialVersionUID = -2399939451497711745L;Label lbreaderid_c = new Label("读者编号");TextField tf_readerid_c = new TextField();Label lbreaderid = new Label("读者编号");TextField tf_readerid = new TextField();Label lbreadername = new Label("读者姓名");TextField tf_readername = new TextField();Label lbreadertype = new Label("读者类别");Choice tf_readertype = new Choice();Label lbsex = new Label("性别");Choice tf_sex = new Choice();Label lbmax_num = new Label("可借数量");TextField tf_max_num = new TextField();Label lbdays_num = new Label("可借天数");TextField tf_days_num = new TextField();Button queryBtn = new Button("查询");Button saveBtn = new Button("保存");Button closeBtn = new Button("关闭");private String optionStr;//保存、修改、删除ReaderManeger(String str){optionStr = str;ggFrame(optionStr);saveBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("readerid", tf_readerid);map.put("readername", tf_readername);map.put("readertype", tf_readertype);map.put("sex", tf_sex);map.put("days_num", tf_days_num);map.put("max_num", tf_max_num);int i ;if(optionStr.equals("delete")){i = Jcwh.btn_delReaderActionPerformed(e, map);}else{i = Jcwh.btn_saveReaderActionPerformed(e,map,optionStr);}if (i == 1) {String showInfo = "";if(optionStr.equals("save")){showInfo = "读者添加成功！";}else if(optionStr.equals("update")){showInfo = "读者修改成功！";}else if(optionStr.equals("delete")){showInfo = "读者删除成功！";}JOptionPane.showMessageDialog(null, showInfo);// 清空全部文本框clearAllTextfield();}}});closeBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {dispose(); // 释放当前窗体}});this.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) { // 关闭当前窗口dispose(); // 释放当前窗体}});}private void ggFrame(String str) {setLayout(null);setTitle("添加读者信息");setSize(500, 230);lbreaderid.setBounds(50, 50, 50, 20);tf_readerid.setBounds(110, 50, 100, 20);lbreadername.setBounds(240, 50, 50, 20);tf_readername.setBounds(300, 50, 100, 20);lbreadertype.setBounds(50, 80, 50, 20);tf_readertype.setBounds(110, 80, 100, 20);tf_readertype.add("教师");tf_readertype.add("学生");tf_readertype.add("职工");lbsex.setBounds(240, 80, 50, 20);tf_sex.setBounds(300, 80, 100, 20);tf_sex.add("男");tf_sex.add("女");lbmax_num.setBounds(50, 110, 50, 20);tf_max_num.setBounds(110, 110, 100, 20);lbdays_num.setBounds(240, 110, 50, 20);tf_days_num.setBounds(300, 110, 100, 20);saveBtn.setBounds(150, 150, 80, 25);closeBtn.setBounds(280, 150, 80, 25);if(str.equals("save")){setTitle("添加读者");}else if(str.equals("update")){setTitle("修改读者");lbreaderid_c.setBounds(100, 10, 50, 20);tf_readerid_c.setBounds(160, 10, 100, 20);tf_readerid.setEditable(false);queryBtn.setBounds(280, 10, 80, 20);add(lbreaderid_c);add(tf_readerid_c);add(queryBtn);queryBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("readerid", tf_readerid_c);Reader reader = (Reader)Jcwh.btn_queryReaderActionPerformed(e,map).get("reader");if(reader!=null){tf_readerid.setText(reader.getId());tf_readername.setText(reader.getReadername());tf_readertype.select(reader.getReadertype());tf_sex.select(reader.getSex());tf_days_num.setText(String.valueOf(reader.getDays_num()));tf_max_num.setText(String.valueOf(reader.getMax_num()));}}});saveBtn.setLabel("修改");//将按钮显示文字修改成“修改”}else if(str.equals("delete")){setTitle("删除图书");lbreaderid_c.setBounds(100, 10, 50, 20);tf_readerid_c.setBounds(160, 10, 100, 20);tf_readerid.setEditable(false);queryBtn.setBounds(280, 10, 80, 20);add(lbreaderid_c);add(tf_readerid_c);add(queryBtn);queryBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("readerid", tf_readerid_c);Reader reader = (Reader)Jcwh.btn_queryReaderActionPerformed(e,map).get("reader");if(reader!=null){tf_readerid.setText(reader.getId());tf_readername.setText(reader.getReadername());tf_readertype.select(reader.getReadertype());tf_sex.select(reader.getSex());tf_days_num.setText(String.valueOf(reader.getDays_num()));tf_max_num.setText(String.valueOf(reader.getMax_num()));}}});saveBtn.setLabel("删除");//将按钮显示文字修改成“删除”}add(lbreaderid);add(lbreadername);add(lbreadertype);add(lbsex);add(lbmax_num);add(lbdays_num);add(tf_readerid);add(tf_readername);add(tf_max_num);add(tf_days_num);add(tf_readertype);add(tf_sex);add(saveBtn);add(closeBtn);setLocationRelativeTo(null);setVisible(true);}private void clearAllTextfield() {tf_readerid.setText("");tf_readername.setText("");tf_max_num.setText("");tf_days_num.setText("");}public static void main(String[] args) {ReaderManeger r = new ReaderManeger("update");}}5.借书public class Borrow extends Frame {private static final long serialVersionUID = -1036076990599464079L;String SepLine = "-------------------------------------------------";Label lbbookid = new Label("图书编号");Label lbreaderid = new Label("读者编号");TextField tf_bookid = new TextField();TextField tf_readerid = new TextField();Button queryBtn = new Button("查询");Label lbbookinfo = new Label(SepLine + "图书信息" + SepLine); Label lbbookname = new Label("图书名称：");Label tf_bookname = new Label("xx");Label lbauthor = new Label("作者：");Label tf_author = new Label("xx");Label lbpublisher = new Label("出版社：");Label tf_publisher = new Label("xx");Label lbpublish_time = new Label("出版时间：");Label tf_publish_time = new Label("xx");Label lbprice = new Label("定价：");Label tf_price = new Label("xx");Label lbstock = new Label("库存数量：");Label tf_stock = new Label("xx");Label lbreaderinfo = new Label(SepLine + "读者信息" + SepLine); Label lbreadername = new Label("读者姓名：");Label tf_readername = new Label("xx");Label lbreadertype = new Label("读者类型：");Label tf_readertype = new Label("xx");Label lbmax_num = new Label("最大可借数：");Label tf_max_num = new Label("xx");Label lbdays_num = new Label("最大可借天数：");Label tf_days_num = new Label("xx");Label lbborrowinfo = new Label(SepLine + "借阅信息" + SepLine); Label lbborrowednum = new Label("该读者已借图书数量："); Label tf_borrowednum = new Label("xx");Label lbif_borrow = new Label("该读者是否可借所选图书："); Label tf_if_borrow = new Label("xx");Label lbborrow_date = new Label("借阅日期：");Label tf_borrow_date = new Label("xx");Button borrowBtn = new Button("借出");Button closeBtn = new Button("关闭");public Borrow() {setLayout(null);setTitle("借阅图书");setSize(500, 420);this.setForeground(Color.BLACK); // 设置前景色为黑色lbbookid.setBounds(30, 40, 50, 25); // 图书编号tf_bookid.setBounds(90, 40, 90, 20);lbreaderid.setBounds(200, 40, 50, 25); // 读者编号tf_readerid.setBounds(260, 40, 90, 20);queryBtn.setBounds(370, 40, 80, 25); // 查询按钮lbbookinfo.setBounds(30, 70, 440, 25); // 图书信息提示条lbbookname.setBounds(30, 100, 60, 25); // 图书名称tf_bookname.setBounds(90, 100, 200, 25);lbauthor.setBounds(310, 100, 60, 25); // 作者tf_author.setBounds(370, 100, 90, 25);lbpublisher.setBounds(30, 125, 60, 25); // 出版社tf_publisher.setBounds(90, 125, 200, 25);lbpublish_time.setBounds(310, 125, 60, 25); // 出版时间tf_publish_time.setBounds(370, 125, 90, 25);lbprice.setBounds(30, 150, 60, 25); // 定价tf_price.setBounds(90, 150, 200, 25);lbstock.setBounds(310, 150, 60, 25); // 库存数量tf_stock.setBounds(370, 150, 90, 25);lbreaderinfo.setBounds(30, 180, 440, 25); // 读者信息提示条lbreadername.setBounds(30, 205, 60, 25); // 读者姓名tf_readername.setBounds(90, 205, 90, 25);lbreadertype.setBounds(310, 205, 60, 25); // 读者类型tf_readertype.setBounds(370, 205, 90, 25);lbmax_num.setBounds(30, 230, 75, 25); // 最大可借数tf_max_num.setBounds(105, 230, 90, 25);lbdays_num.setBounds(310, 230, 85, 25); // 最大可借天数tf_days_num.setBounds(395, 230, 70, 25);lbborrowinfo.setBounds(30, 260, 440, 25); // 借阅信息提示条lbborrowednum.setBounds(30, 285, 120, 25);// 已借图书数量tf_borrowednum.setBounds(150, 285, 50, 25);lbif_borrow.setBounds(30, 310, 145, 25); // 是否可借tf_if_borrow.setBounds(175, 310, 50, 25);lbborrow_date.setBounds(30, 335, 60, 25);// 借书日期tf_borrow_date.setBounds(90, 335, 100, 25);borrowBtn.setBounds(160, 365, 80, 25);// 借出按钮borrowBtn.setEnabled(false); // 开始时禁用借出按钮closeBtn.setBounds(260, 365, 80, 25);// 关闭按钮queryBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) { btn_querywActionPerformed(e); } }); borrowBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) { btn_borrowActionPerformed(e); } });closeBtn.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) { setForeground(Color.BLACK); dispose(); } }); this.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {setForeground(Color.BLACK); // 设置前景色为黑色dispose(); // 关闭窗体}});add(lbbookid);add(lbreaderid);add(queryBtn);add(lbbookinfo);add(lbbookname);add(lbauthor);add(lbpublisher);add(lbpublish_time);add(lbprice);add(lbstock);add(lbreaderinfo);add(lbreadername);add(lbreadertype);add(lbmax_num);add(lbdays_num);add(lbborrowinfo);add(lbborrowednum);add(lbif_borrow);add(lbborrow_date);add(borrowBtn);add(closeBtn);setLocationRelativeTo(null); // 使窗体在屏幕上居中放置setVisible(true); // 使窗体可见setForeground(Color.RED); // 设置前景色为红色add(tf_bookid);add(tf_readerid);add(tf_bookname);add(tf_author);add(tf_publisher);add(tf_publish_time);add(tf_price);add(tf_stock);add(tf_readername);add(tf_readertype);add(tf_max_num);add(tf_days_num);add(tf_borrowednum);add(tf_if_borrow);add(tf_borrow_date);}// 图书和读者查询private void btn_querywActionPerformed(ActionEvent e) {String bookid = tf_bookid.getText();String readerid = tf_readerid.getText();// 如果图书编号或读者编号两者均为空，或者有一个为空，则返回if (bookid.equals("") || readerid.equals("")) {JOptionPane.showMessageDialog(null, "图书编号和读者编号均不能为空！");init(); // 重新初始化各参数并禁止借出按钮return;}// 按编号查询图书，结果存入book对象中Book book = BookSelect.SelectBookById(bookid);if (book != null) { // 如果查询到结果，将其显示在各文本框中tf_bookname.setText(book.getBookname());tf_author.setText(book.getAuthor());tf_publisher.setText(book.getPublisher());tf_publish_time.setText(book.getPublish_time().toString());tf_price.setText(String.valueOf((book.getPrice())));tf_stock.setText(String.valueOf(book.getStock()));} else {JOptionPane.showMessageDialog(null, "图书编号有误，查无此书！");init(); // 重新初始化各参数并禁止借出按钮return;}if (book.getStock() == 0) {JOptionPane.showMessageDialog(null, "图书已无库存，无法借阅！");init(); // 重新初始化各参数并禁止借出按钮return;}// 按编号查询读者，结果存入reader对象中Reader reader = ReaderSelect.selectReaderById(readerid);// 如果查询到结果，将其显示在各文本框中if (reader != null) {tf_readername.setText(reader.getReadername());tf_readertype.setText(reader.getReadertype());tf_max_num.setText(String.valueOf(reader.getMax_num()));tf_days_num.setText(String.valueOf(reader.getDays_num()));} else {JOptionPane.showMessageDialog(null, "读者编号有误，查无此人！");init(); // 重新初始化各参数并禁止借出按钮return;}// 查询指定读者是否已借过指定图书且未归还if (IfBorrowBack.findbook(bookid, readerid)) {JOptionPane.showMessageDialog(null, "该读者已借阅所选图书，且未归还！");init(); // 重新初始化各参数并禁止借出按钮return;}// 统计读者所借图书数量int borrowednum = statborrowednum(readerid);tf_borrowednum.setText(String.valueOf(borrowednum));// 如果读者已借图书尚未超出其允许最大借书量，则允许其继续借阅所选图书if (borrowednum < reader.getMax_num()) {tf_if_borrow.setText("是");// 创建一个简单日期格式对象，注意：MM一定要用大写SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 创建日期变量，其内容为当前日期Date currentdate = new Date();// 将日期按指定格式输出String borrowdate = sdf.format(currentdate);tf_borrow_date.setText(borrowdate);borrowBtn.setEnabled(true); // 使借出按钮有效} else {JOptionPane.showMessageDialog(null, "该读者借书过多，无法继续借阅！");init(); // 重新初始化各参数并禁止借出按钮return;}}// 填写借出图书记录private void btn_borrowActionPerformed(ActionEvent e) {String sql;String bookid = tf_bookid.getText();String readerid = tf_readerid.getText();String borrowdate = tf_borrow_date.getText();// 为borrow表增加借书记录sql = "insert into borrow (book_id,reader_id,"+ "borrow_date,if_back) values('" + bookid + "','" + readerid + "','" + borrowdate + "','否')";。

java课程设计图书馆管理系统代码

Java课程设计：图书馆管理系统代码介绍本文档是关于使用Java编写的图书馆管理系统代码的设计和实现。

图书馆管理系统是一种用于管理图书馆藏书、借还书籍和读者信息的应用程序。

它可以帮助图书馆提高管理效率和服务质量，并提供方便的读者查询和借还书的功能。

功能和需求1.用户管理：图书馆管理员可以添加、删除和编辑读者信息，包括姓名、联系方式和借书情况等。

2.图书管理：管理员可以添加、删除和编辑图书信息，包括书名、作者、出版日期和库存数量等。

3.借书和还书功能：读者可以借阅图书，管理员可以归还已借出的图书，并更新库存数量。

4.图书查询功能：读者可以根据图书名称、作者或出版日期等条件进行图书查询，以了解图书的详细信息和当前库存情况。

5.借阅记录查询：管理员可以查询读者的借阅记录，包括借阅时间、归还时间和借阅状态等。

系统设计数据模型系统设计采用面向对象的编程思想，主要包括以下几个类：图书馆类（Library）•属性：–读者列表（Reader[] readers）–图书列表（Book[] books）•方法：–添加读者（addReader）–删除读者（removeReader）–编辑读者信息（editReader）–添加图书（addBook）–删除图书（removeBook）–编辑图书信息（editBook）–借书（borrowBook）–还书（returnBook）–图书查询（searchBook）–借阅记录查询（searchRecords）读者类（Reader）•属性：–姓名（String name）–联系方式（String contact）–借阅记录列表（Record[] records）•方法：–借书（borrowBook）–还书（returnBook）图书类（Book）•属性：–书名（String title）–作者（String author）–出版日期（Date publicationDate）–库存数量（int quantity）•方法：–增加库存（increaseQuantity）–减少库存（decreaseQuantity）借阅记录类（Record）•属性：–图书（Book book）–读者（Reader reader）–借阅日期（Date borrowDate）–归还日期（Date returnDate）•方法：–设置归还日期（setReturnDate）系统流程图下图展示了图书馆管理系统的基本流程：graph LRA[开始] --> B[登录]B --> C{用户类型}C -->|管理员| E[管理图书馆]C -->|读者| F[查询图书]F --> G{查询类型}G -->|书名| H[查询结果]G -->|作者| H[查询结果]G -->|出版日期| H[查询结果]F --> I[返回主菜单]I --> FE --> J{操作类型}J -->|添加读者| K[输入读者信息]K --> L[保存读者信息]J -->|删除读者| M[输入读者ID]M --> N[删除读者信息]J -->|编辑读者| O[输入读者ID]O --> P[输入更新信息]P --> Q[更新读者信息]J -->|添加图书| R[输入图书信息]R --> S[保存图书信息]J -->|删除图书| T[输入图书ID]T --> U[删除图书信息]J -->|编辑图书| V[输入图书ID]V --> W[输入更新信息]W --> X[更新图书信息]J -->|借书| Y[输入读者ID和图书ID]Y --> Z[创建借阅记录]J -->|还书| A1[输入借阅记录ID]A1 --> B1[设置归还日期]B1 --> C1[更新借阅记录]J -->|查询借阅记录| D1[输入读者ID]D1 --> E1[查询借阅记录信息]代码实现以下是Java图书馆管理系统的代码实现：public class Library {private Reader[] readers;private Book[] books;public void addReader(Reader reader) {// 添加读者}public void removeReader(int readerId) {// 删除读者}public void editReader(int readerId, Reader reader) { // 编辑读者信息}public void addBook(Book book) {// 添加图书}public void removeBook(int bookId) {// 删除图书}public void editBook(int bookId, Book book) { // 编辑图书信息}public void borrowBook(int readerId, int bookId) { // 借书}public void returnBook(int recordId) {// 还书}public Book[] searchBook(String keyword) {// 图书查询}public Record[] searchRecords(int readerId) { // 借阅记录查询}}public class Reader {private String name;private String contact;private Record[] records;public void borrowBook(int bookId) {// 借书}public void returnBook(int recordId) {// 还书}}public class Book {private String title;private String author;private Date publicationDate;private int quantity;public void increaseQuantity(int amount) {// 增加库存}public void decreaseQuantity(int amount) {// 减少库存}}public class Record {private Book book;private Reader reader;private Date borrowDate;private Date returnDate;public void setReturnDate(Date returnDate) {// 设置归还日期}}快速开始编译和运行图书馆管理系统的示例代码，请按照以下步骤：1.准备Java开发环境。

用java做的一个图书管理系统的源代码.doc

用 java 做的一个图书管理系统的源代码import .*;import .*;public class T{public static void main(String[] args) throws Exception{Connection conn=null;Statement stmt=null;ResultSet rs=null;while(true){Scanner scanner=new Scanner;"请输入用户名：");String username2=();"请输入密码：");String password2=();if(!("")||(""))){try{("");conn=("jdbc:odbc:book","","");String sql="select * from ww where username='"+username2+"'";stmt=();rs=(sql);if()){if("password").equals(password2)){"*********欢迎来山东科技大学图书馆管理系统********");while(true){" 1.图书信息");" 2. 读者信息");" 3. 管理员信息");" 4.借阅信息");" 5. 还书信息");" 6.逾期罚款或损坏赔偿信息");出");" 请输入选择功能的序号:"); int a=();switch(a){case 1:" 图书信息 : ");" 1. 查询图书信息 : ");" 2. 插入图书信息 : ");" 3. 删除图书信息 : ");" 4. 修改图书信息 : ");int a1=();switch(a1){case 1:" " "欢迎进入图书信息查询系统1. 无条件查询图书信息:2. 条件查询图书信息::");");");int d=();switch(d){case 1:int llll=0;无条件查询图书信息:");String Sql0 = "SELECT * FROM systembook ";rs= (Sql0);while()){String bookID =(1);String bookNo =(2);String bookName =(3);String bookWriter =(4);String bookPub =(5);","+bookNo+","+bookName+","+ bookWriter+","+bookPub);}"是否继续插入 yes/no no 返回主菜单 ");String k=();if("yes"))};if("no")){llll=1;};}break;条件查询图书信息 : ");" 1. 单条件查询图书信息: ");" 2. 模糊条件查询图书信息: ");" 3. 多表连接查询图书信息: ");" 4. 嵌套查询图书信息 : ");" 5. 谓词演算查询");int c12=();switch(c12){case 1:" 1.单条件查询 :");" 1.按图书名编码号查询图书信息:");int ddd=0;while(ddd!=1){"请输入图书编码号:");String A=();String sql1= "SELECT * FROM systembook WHERE bookID ='"+A+"' ";rs= (sql1);int x=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);x++;}if(x==0){" 查无此书 ,请重新输入 ");else{"是否继续按姓名查询yes/no no 返回主菜单 ");String k=();if("yes")){};if("no")){ddd=1;};};}break;case 2:" 2.模糊查询图书信息:");int dc=0;while(dc!=1){" 请用户输入图书名字中的模糊关键字");String E=();String sq123= "SELECT * FROM systembook WHERE bookName LIKE'"+E+"%'";rs= (sq123);int z=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);z++;}if(z==0){" 查无此书 ,请重新输入 ");}else{"是否继续输入图书名字中的模糊关键字yes/no no 返回主菜单 ");String k=();if("yes")){};if("no")){dc=1;表连接查询查询图书信息: ");int dq=0;while(dq!=1){" 查询逾期罚款或是赔偿表中的读者的相关信息");" 请输入逾期罚款或是赔偿的读者编码号");String F=();String sq1234= "SELECT * FROM fine,borrowbook,systemreader WHERE = AND = AND ='"+F+"' ";rs= (sq1234);int n=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);n++;}if(n==0){" 查无此人 ,请重新输入 ");}else{" 是否继续输入图书名字中的模糊关键字yes/no no 返回主菜单 ");if("yes")){};if("no")){ddd=1;};}}break;case 4:" 4.嵌套查询图书信息:");int dq1=0;while(dq1!=1){"查询某读者所在年级女读者的相关信息");"请输入某读者的读者编号");String G=();String sq12345= "SELECT * FROM systemreader WHERE reaGrade=(SELECT reaGrade FROM systemreader WHERE reaID='"+G+"') AND reasex='女'"; rs= (sq12345);int m=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);m++;}if(m==0){" 查无此书 ,请重新输入 ");}else{"是否继续输入读者编号yes/no no 返回主菜单 ");if("yes")){};if("no")){d=1;};}}break;case 5:" 5. 谓词演算查询：");int dq1123=0;while(dq1123!=1){"查询借阅了某本书的读者的相关信息");"请输入该书的名字");String H=();String sq123456= "SELECT* FROM systemreader WHERE reaID IN (SELECT reaID FROM borrowbook WHERE bookName='"+H+"')";rs= (sq123456);int l=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);l++;}if(l==0){" 查无此人 ,请重新输入 ");}else{" 是否继续输入图书名字yes/no no 返回主菜单");String k=();if("yes")){} ;if("no")){d=1;};}}break;}查询图书信息 :");String Sql = "SELECT * FROM systembook ";rs= (Sql);while()){插入图书信息: " 请按顺序插入图书条码号");,图书索书号,图书名字,图书作者,图书出版社");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];String a15=splitst[4];String insertSql="INSERT INTO systembook(bookID,bookNo,bookName,bookWriter,bookPub) VALUES('"+a11+"','"+a12+"','"+a13+"','"+a14+"','"+a15+"')";int i=(insertSql);删除图书信息:");"请输入要删除的图书编号:");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM systembook where bookID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);","+b22+" ,"+c22+","+d22+","+e22+","+f22);kkk++;}if(kkk==0){"没有这本书，请重新输入");}else{{String deleSql= "DELETE FROM systembook WHEREbookID='"+b3+"'";int p=(deleSql);修改图书信息:");"请输入修改的图书ID");String S=();String sql1="SELECT * FROM systembook where bookID='"+S+"'";rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);String e222 =(5);String f222 =(6);","+b222+" ,"+c222+","+d222+","+e222+","+f222);lll++;}if(lll==0){"没有这本书，请重新输入");}else{"要将书名改为");String bbb=();String updateSql1="UPDATE systembook SET bookName='"+bbb+"' WHERE bookID='"+S+"'";int hh=(updateSql1);查询读者信息" 2. 插入读者信息 :");" 3. 删除读者信息 :");" 4. 修改读者信息:"int b1=();switch(b1){case 1:" 1. 查询读者信息 :"); :);");String ssql = "SELECT * FROM systemreader ";rs= (ssql);while()){插入读者信息 :");"请按顺序插入借书卡证号读者名字读者学号读者性别读者LBID 读者类型读者学院读者年级读者专业办证日期");String str=();String []splitst=(",");String b11=splitst[0];String b12=splitst[1];String b13=splitst[2];String b14=splitst[3];String b15=splitst[4];String b16=splitst[5];String b17=splitst[6];String b18=splitst[7];String b19=splitst[8];String b20=splitst[9];String insertSql="INSERT INTOsystemreader(reaID,reaName,reaNo,reaSex,reaLBID,reaType,reaDep,reaGrade,reaPre,reaDate) VALUES('"+b11+"','"+b12+"','"+b13+"','"+b14+"','"+b15+"','"+b16+"','"+b17+"','"+b18+"','"+b19+"' ,'"+b20+"')";int n=(insertSql);删除读者信息:");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String r=Splitst[0];String sql1="SELECT * FROM systemreader where reaID='"+r+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);String g22 =(7);String h22 =(8);String i22 =(9);","+b22+" ,"+c22+","+d22+","+e22+","+f22+","+g22+","+h22+","+i22);kkk++;}if(kkk==0){"没有这个读者，请重新输入");}else{修改读者信息:");"请输入修改以后的读者的ID ");String S=();查询管理员信息 : ");" 2. 插入管理员信息 : ");" 3. 删除管理员信息 : ");" 4. 修改管理员信息 : ");" 5. 返回上一级");int c11=();switch(c11){case 1:" 1. 查询管理员信息: ");String Ssql = "SELECT * FROM manager ";rs= (Ssql);while()){插入管理员信息 :");" 请按顺序插入管理员的编号，管理员的姓名,管理员的性别,所管书库，电话，地址 ");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];String a15=splitst[4];String a16=splitst[5];String insertSql="INSERT INTOmanager(mID,mName,mSex,mAuth,mTeleph,mAddre)VALUES('"+a11+"','"+a12+"','"+a13+"','"+a14+"','"+a15+"','"+a16+"')";int i=(insertSql);删除管理员信息:");"请输入要删除的管理员编号 :");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM manager where mID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);","+b22+" ,"+c22+","+d22+","+e22+","+f22);kkk++;}if(kkk==0){"没有这个管理员，请重新输入");}else{修改管理员信息: ");" 请输入要修改的管理员编号：");String S=();String []Ssplitst=(",");String c1=Ssplitst[0];String sql1="SELECT * FROM manager where mID='"+S+"'";rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);String e222 =(5);String f222 =(6);","+b222+" ,"+c222+","+d222+","+e222+","+f222);lll++;}if(lll==0){"没有这个管理员，请重新输入");}else{查询图书借阅信息信息: ");" 2. 插入图书借阅信息 : ");" 3. 删除图书借阅信息 : ");" 4. 修改图书借阅信息 : ");" 5. 返回上一级");int d=();switch(d){case 1:" 1. 查询图书借阅信息:");String Sql4 = "SELECT * FROM borrowbook ";rs= (Sql4);while()){String bookID =(1);String reaID =(2);String outDate =(3);String yhDate =(4);","+reaID+","+outDate+","+yhDate);}break;case 2:int zz=0;while(zz!=1){" 2. 插入图书借阅信息:");"请按顺序插入图书的的编号 ,读者编号 ,图书借出日期 ,图书归还日期 ");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];删除图书借阅信息:");"请输入要删除的图书条码号 :");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM borrowbook where bookID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);修改借阅读书信息:");"请输入要修改的图书的 ID ");String S=();String []Ssplitst=(",");String c1=Ssplitst[0];String sql1="SELECT * FROM borrowbook where bookID='"+S+"'";rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);查询还书信息 : ");" 2. 插入还书信息 : ");" 3. 删除还书信息 : ");" 4. 修改还书信息 : ");" 5. 返回上一级");int e=();switch(e){case 1:"1. 查询还书信息 : ");sql = "SELECT * FROM return ";rs= (sql);while()){String reaID =(1);String bookID =(2);String bookName =(3);String inDate =(4);","+bookID+","+bookName+","+ inDate);}break;case 2:" 2. 插入还书信息:");"请按顺序插入读者卡号 ,图书编号 ,图书名称 ,还书日期 ");String str=();String []splitst=(",");String e1=splitst[0];String e2=splitst[1];String e3=splitst[2];String e4=splitst[3];String insertSql="INSERT INTO returnbook(reaID,bookID,bookName,inDate) VALUES('"+e1+"','"+e2+"','"+e3+"','"+e4+"')";int h=(insertSql); 删除还书书信息: ");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String f3=Splitst[0];String deleSql= "DELETE FROM return WHERE reaID='"+f3+"'";int w=(deleSql);查询罚款信息:");" 2. 插入罚款信息 : ");" 3. 删除罚款信息 : ");" 4. 修改罚款信息 : ");int g=();switch(g){case 1:"1. 查询罚款信息 : ");String Sssql = "SELECT * FROM fine ";rs= (Sssql);while()){插入罚款信息 : ");" 请按顺序插入读者卡号 , 图书编号 ,借书日期，超出日期 ,应缴罚款 ");String str=();String []splitst=(",");String g1=splitst[0];String g2=splitst[1];String g3=splitst[2];String g4=splitst[3];String g5=splitst[4];删除罚款信息 : ");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String r=Splitst[0];String deleSql= "DELETE FROM fine WHERE reaID='"+r+"'";int x=(deleSql); 查询借阅历史信息 : ");" 2. 插入借阅历史信息 : ");" 3. 删除借阅历史信息 : ");" 4. 修改借阅历史信息 : ");" 5. 返回上一级");int h=();switch(h){case 1:" 1. 查询历史借阅信息:");String Sql7 = "SELECT * FROM borrowhistory ";rs= (Sql7);while()){String bookID =(1);String reaID =(2);String bookName=(3);String bookWriter=(4);String outDate =(5);String yhDate =(6);","+reaID+","+bookName+","+bookWriter+","+outDate+","+yhDate);}break;case 2:" 2. 插入图书历史借阅信息:");"请按顺序插入图书的的编号 ,读者编号 ,,图书借出日期 ,图书归还日期 ");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];删除图书历史借阅信息:");" 请输入要删除的图书条码号:");String Str=();String []Splitst=(",");String d3=Splitst[0];String deleSql= "DELETE bookID FROM borrowhistory WHERE bookID='"+d3+"'";int k=(deleSql);修改图书借阅历史信息" 请输入要修改的图书的借出日期String S=();:");");String []Ssplitst=(",");String c1=Ssplitst[0];String updateSql="UPDATE borrow SET outDate='"+c1+"' WHERE bookName=' 数据库 '";int t=(updateSql); // 返回记录影响的条数if(t!=0){" 修改成功 !");}break;}}}}}else{"非法用户！ ");}}catch(SQLException e) {();}//();();();}}}}。

用java做的一个图书管理系统的源代码

用j a v a做的一个图书管理系统的源代码标准化文件发布号：（9312-EUATWW-MWUB-WUNN-INNUL-DQQTY-用java做的一个图书管理系统的源代码import .*;import .*;public class T{public static void main(String[] args) throws Exception{Connection conn=null;Statement stmt=null;ResultSet rs=null;while(true){Scanner scanner=new Scanner;"请输入用户名：");String username2=();"请输入密码：");String password2=();if(!("")||(""))){try{("");conn=("jdbc:odbc:book","","");String sql="select * from ww where username='"+username2+"'"; stmt=();rs=(sql);if()){if("password").equals(password2)){"*********欢迎来山东科技大学图书馆管理系统********"); while(true){" 1.图书信息 ");" 2.读者信息 ");" 3.管理员信息 ");" 4.借阅信息 ");" 5.还书信息 ");" 6.逾期罚款或损坏赔偿信息");出 ");" 请输入选择功能的序号 :");int a=();switch(a){case 1:" 图书信息: ");" 1. 查询图书信息: ");" 2. 插入图书信息: ");" 3. 删除图书信息: ");" 4. 修改图书信息: ");int a1=();switch(a1){case 1:" 欢迎进入图书信息查询系统: ");" 1. 无条件查询图书信息: ");" 2. 条件查询图书信息: ");int d=();switch(d){case 1:int llll=0;无条件查询图书信息: ");String Sql0 = "SELECT * FROM systembook ";rs= (Sql0);while()){String bookID =(1);String bookNo =(2);String bookName =(3);String bookWriter =(4);String bookPub =(5);","+bookNo+","+bookName+","+ bookWriter+","+bookPub); }"是否继续插入yes/no no返回主菜单");String k=();if("yes")){};if("no")){llll=1;};}break;条件查询图书信息: ");" 1. 单条件查询图书信息: ");" 2. 模糊条件查询图书信息: ");" 3. 多表连接查询图书信息: ");" 4. 嵌套查询图书信息: ");" 5. 谓词演算查询 ");int c12=();switch(c12){case 1:" 1.单条件查询: ");" 1.按图书名编码号查询图书信息: ");int ddd=0;while(ddd!=1){"请输入图书编码号:");String A=();String sql1= "SELECT * FROM systembook WHERE bookID ='"+A+"' ";rs= (sql1);int x=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);x++;}if(x==0){"查无此书,请重新输入");}else{"是否继续按姓名查询yes/no no返回主菜单");String k=();if("yes")){};if("no")){ddd=1;};};}break;case 2:" 2.模糊查询图书信息: ");int dc=0;while(dc!=1){"请用户输入图书名字中的模糊关键字");String E=();String sq123= "SELECT * FROM systembook WHERE bookName LIKE'"+E+"%'";rs= (sq123);int z=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);z++;}if(z==0){"查无此书,请重新输入");else{"是否继续输入图书名字中的模糊关键字yes/no no返回主菜单");String k=();if("yes")){};if("no")){dc=1;表连接查询查询图书信息: ");int dq=0;while(dq!=1){"查询逾期罚款或是赔偿表中的读者的相关信息");"请输入逾期罚款或是赔偿的读者编码号");String F=();String sq1234= "SELECT * FROM fine,borrowbook,systemreader WHERE = AND = AND ='"+F+"' ";rs= (sq1234);int n=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);n++;}if(n==0){"查无此人,请重新输入");}else{"是否继续输入图书名字中的模糊关键字yes/no no返回主菜单");String k=();if("yes")){};if("no")){ddd=1;};}}break;case 4:" 4.嵌套查询图书信息: ");int dq1=0;while(dq1!=1){"查询某读者所在年级女读者的相关信息");"请输入某读者的读者编号");String G=();String sq12345= "SELECT * FROM systemreader WHERE reaGrade=(SELECT reaGrade FROM systemreader WHERE reaID='"+G+"') AND reasex='女'";rs= (sq12345);int m=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);m++;}if(m==0){"查无此书,请重新输入");}else{"是否继续输入读者编号yes/no no返回主菜单");String k=();if("yes"))};if("no")){d=1;};}}break;case 5:" 5. 谓词演算查询： ");int dq1123=0;while(dq1123!=1){"查询借阅了某本书的读者的相关信息");"请输入该书的名字");String H=();String sq123456= "SELECT * FROM systemreader WHERE reaID IN (SELECT reaID FROM borrowbook WHERE bookName='"+H+"')";rs= (sq123456);int l=0;while()){String a2 =(1);String b2 =(2);String c2 =(3);String d2 =(4);String e2 =(5);","+b2+" ,"+c2+","+d2+","+e2);l++;}if(l==0){"查无此人,请重新输入");}else{"是否继续输入图书名字yes/no no返回主菜单");String k=();if("yes")){};if("no")){d=1;};}}break;}查询图书信息: ");String Sql = "SELECT * FROM systembook ";rs= (Sql);while()){插入图书信息: ");"请按顺序插入图书条码号,图书索书号,图书名字,图书作者,图书出版社");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];String a15=splitst[4];String insertSql="INSERT INTOsystembook(bookID,bookNo,bookName,bookWriter,bookPub)VALUES('"+a11+"','"+a12+"','"+a13+"','"+a14+"','"+a15+"')";int i=(insertSql); 删除图书信息: ");"请输入要删除的图书编号:");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM systembook where bookID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);","+b22+" ,"+c22+","+d22+","+e22+","+f22);kkk++;}if(kkk==0){"没有这本书，请重新输入");}else{{String deleSql= "DELETE FROM systembook WHERE bookID='"+b3+"'";int p=(deleSql); 修改图书信息: ");"请输入修改的图书ID ");String S=();String sql1="SELECT * FROM systembook where bookID='"+S+"'"; rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);String e222 =(5);String f222 =(6);","+b222+" ,"+c222+","+d222+","+e222+","+f222);lll++;}if(lll==0){"没有这本书，请重新输入");}else{"要将书名改为");String bbb=();String updateSql1="UPDATE systembook SET bookName='"+bbb+"' WHERE bookID='"+S+"'";int hh=(updateSql1); 查询读者信息: ");" 2. 插入读者信息: ");" 3. 删除读者信息: ");" 4. 修改读者信息: " );int b1=();switch(b1){case 1:" 1. 查询读者信息: ");String ssql = "SELECT * FROM systemreader ";rs= (ssql);while()){插入读者信息: ");"请按顺序插入借书卡证号读者名字读者学号读者性别读者LBID 读者类型读者学院读者年级读者专业办证日期");String str=();String []splitst=(",");String b11=splitst[0];String b12=splitst[1];String b13=splitst[2];String b14=splitst[3];String b15=splitst[4];String b16=splitst[5];String b17=splitst[6];String b18=splitst[7];String b19=splitst[8];String b20=splitst[9];String insertSql="INSERT INTOsystemreader(reaID,reaName,reaNo,reaSex,reaLBID,reaType,reaDep,reaGrade,reaPr e,reaDate)VALUES('"+b11+"','"+b12+"','"+b13+"','"+b14+"','"+b15+"','"+b16+"','"+b17+"','"+b18 +"','"+b19+"','"+b20+"')";int n=(insertSql); 删除读者信息: ");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String r=Splitst[0];String sql1="SELECT * FROM systemreader where reaID='"+r+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);String g22 =(7);String h22 =(8);String i22 =(9);","+b22+" ,"+c22+","+d22+","+e22+","+f22+","+g22+","+h22+","+i22); kkk++;}if(kkk==0){"没有这个读者，请重新输入");}else{修改读者信息: ");"请输入修改以后的读者的ID ");String S=();查询管理员信息: ");" 2. 插入管理员信息: ");" 3. 删除管理员信息: ");" 4. 修改管理员信息: ");" 5. 返回上一级 ");int c11=();switch(c11){case 1:" 1. 查询管理员信息: ");String Ssql = "SELECT * FROM manager ";rs= (Ssql);while()){插入管理员信息: ");"请按顺序插入管理员的编号，管理员的姓名,管理员的性别,所管书库，电话，地址");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];String a15=splitst[4];String a16=splitst[5];String insertSql="INSERT INTOmanager(mID,mName,mSex,mAuth,mTeleph,mAddre)VALUES('"+a11+"','"+a12+"','"+a13+"','"+a14+"','"+a15+"','"+a16+"')";int i=(insertSql); 删除管理员信息: ");"请输入要删除的管理员编号:");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM manager where mID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);String e22 =(5);String f22 =(6);","+b22+" ,"+c22+","+d22+","+e22+","+f22);kkk++;}if(kkk==0){"没有这个管理员，请重新输入");}else{修改管理员信息: ");"请输入要修改的管理员编号： ");String S=();String []Ssplitst=(",");String c1=Ssplitst[0];String sql1="SELECT * FROM manager where mID='"+S+"'"; rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);String e222 =(5);String f222 =(6);","+b222+" ,"+c222+","+d222+","+e222+","+f222); lll++;}if(lll==0){"没有这个管理员，请重新输入");}else{查询图书借阅信息信息: ");" 2. 插入图书借阅信息: ");" 3. 删除图书借阅信息: ");" 4. 修改图书借阅信息: ");" 5. 返回上一级 ");int d=();switch(d){case 1:" 1. 查询图书借阅信息: ");String Sql4 = "SELECT * FROM borrowbook ";rs= (Sql4);while()){String bookID =(1);String reaID =(2);String outDate =(3);String yhDate =(4);","+reaID+","+outDate+","+yhDate);}break;case 2:int zz=0;while(zz!=1){" 2. 插入图书借阅信息: ");"请按顺序插入图书的的编号,读者编号,图书借出日期,图书归还日期");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];删除图书借阅信息: ");"请输入要删除的图书条码号:");String Str=();String []Splitst=(",");String b3=Splitst[0];String sql1="SELECT * FROM borrowbook where bookID='"+b3+"'";rs= (sql1);int kkk=0;while()){String a22 =(1);String b22 =(2);String c22 =(3);String d22 =(4);修改借阅读书信息: ");"请输入要修改的图书的ID ");String S=();String []Ssplitst=(",");String c1=Ssplitst[0];String sql1="SELECT * FROM borrowbook where bookID='"+S+"'";rs= (sql1);int lll=0;while()){String a222 =(1);String b222 =(2);String c222 =(3);String d222 =(4);查询还书信息: ");" 2. 插入还书信息: ");" 3. 删除还书信息: ");" 4. 修改还书信息: ");" 5. 返回上一级 ");int e=();switch(e){case 1:" 1. 查询还书信息: ");sql = "SELECT * FROM return ";rs= (sql);while()){String reaID =(1);String bookID =(2);String bookName =(3);String inDate =(4);","+bookID+","+bookName+","+ inDate);}break;case 2:" 2. 插入还书信息: ");"请按顺序插入读者卡号,图书编号,图书名称,还书日期");String str=();String []splitst=(",");String e1=splitst[0];String e2=splitst[1];String e3=splitst[2];String e4=splitst[3];String insertSql="INSERT INTOreturnbook(reaID,bookID,bookName,inDate)VALUES('"+e1+"','"+e2+"','"+e3+"','"+e4+"')";int h=(insertSql); 删除还书书信息: ");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String f3=Splitst[0];String deleSql= "DELETE FROM return WHERE reaID='"+f3+"'";int w=(deleSql); 查询罚款信息: ");" 2. 插入罚款信息: ");" 3. 删除罚款信息: ");" 4. 修改罚款信息: ");int g=();switch(g){case 1:" 1. 查询罚款信息: ");String Sssql = "SELECT * FROM fine ";rs= (Sssql);while()){插入罚款信息: ");"请按顺序插入读者卡号,图书编号,借书日期，超出日期,应缴罚款");String str=();String []splitst=(",");String g1=splitst[0];String g2=splitst[1];String g3=splitst[2];String g4=splitst[3];String g5=splitst[4];删除罚款信息: ");"请输入要删除的读者证号:");String Str=();String []Splitst=(",");String r=Splitst[0];String deleSql= "DELETE FROM fine WHERE reaID='"+r+"'";int x=(deleSql); 查询借阅历史信息: ");" 2. 插入借阅历史信息: ");" 3. 删除借阅历史信息: ");" 4. 修改借阅历史信息: ");" 5. 返回上一级 ");int h=();switch(h){case 1:" 1. 查询历史借阅信息: ");String Sql7 = "SELECT * FROM borrowhistory ";rs= (Sql7);while()){String bookID =(1);String reaID =(2);String bookName=(3);String bookWriter=(4);String outDate =(5);String yhDate =(6);","+reaID+","+bookName+","+bookWriter+","+outDate+","+yhDate);}break;case 2:" 2. 插入图书历史借阅信息: ");"请按顺序插入图书的的编号,读者编号,,图书借出日期,图书归还日期");String str=();String []splitst=(",");String a11=splitst[0];String a12=splitst[1];String a13=splitst[2];String a14=splitst[3];删除图书历史借阅信息: ");"请输入要删除的图书条码号:");String Str=();String []Splitst=(",");String d3=Splitst[0];String deleSql= "DELETE bookID FROM borrowhistory WHEREbookID='"+d3+"'";int k=(deleSql); 修改图书借阅历史信息: ");"请输入要修改的图书的借出日期 ");String S=();String []Ssplitst=(",");String c1=Ssplitst[0];String updateSql="UPDATE borrow SET outDate='"+c1+"' WHERE bookName='数据库'";int t=(updateSql); //返回记录影响的条数if(t!=0){"修改成功!");}break;}}}}}else{"非法用户！");}}catch(SQLException e) { ();}//();();();}}}}。

java编写的图书管理系统源代码

/用户登陆数据库代码：importjava.sql.*;classDatabase{Connectioncon;ResultSetrs;Statementstmt;publicDatabase(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//加载JDBC-ODBC桥驱动程序Stringurl="jdbcdbc:HDB";con=DriverManager.getConnection(url);//连接数据库HDB//stmt提供一个创建SQL查询、执行查询、得到返回结果的空间stmt= //con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,//ResultSet.CONCUR_READ_ONLY);}catch(Exceptionex){System.out.println(ex);}}/*根据用户名，获取密码*/publicStringgetPswd(Stringname){try{//rs为执行SQL语句所查询的结果赋给结果集对象rsrs=stmt.executeQuery("SELECTpswdFROMUserWHEREName='"+name+"'");st();//把rs的指针移到最后一行if(rs.getRow()==0){returnnull;}else{StringpswdDB=rs.getString("Pswd");//获取rs结果集中的pswd列的数据returnpswdDB;}}catch(Exceptione){System.out.println(e);returnnull;}}/*增加一行用户名、密码数据*/publicbooleaninsertData(Stringname,Stringpswd){try{Strings=getPswd(name);if(s==null){intrtn=stmt.executeUpdate("INSERTINTOUserVALUES('"+name+"','"+pswd+"')");if(rtn!=0)returntrue;}else{returnfalse;}returnfalse;}catch(Exceptionet){System.out.println(et);returnfalse;}}}//进库数据库代码：importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.Statement;classBookDatabase{Connectioncon;ResultSetrs;Statementstmt;publicBookDatabase(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//加载JDBC-ODBC桥驱动程序Stringurl="jdbcdbc:Book";con=DriverManager.getConnection(url);//连接数据库HDB//stmt提供一个创建SQL查询、执行查询、得到返回结果的空间stmt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);}catch(Exceptionex){System.out.println(ex);}}/*增加一行用户名、密码数据*/publicbooleaninsertData(Stringid,Stringname,Stringwhere,Stringprice,Stringdate){try{intrtn=stmt.executeUpdate("INSERTINTOBookVALUES('"+id +"','"+name+"','"+where+"','"+price+"','"+date+"')");if(rtn!=0){returntrue;}else{returnfalse;}}catch(Exceptionet){System.out.println(et);returnfalse;}}/**publicbooleandeleteData(Stringid){try{intrtn=*stmt.executeUpdate("DELETEFROMBookWHEREid=001");if(rtn!=0){ *returntrue;}else{returnfalse;}}catch(Exceptione){*System.out.println(e);returnfalse;}}publicbooleanSelect(String*id){try{intrtn=stmt.executeUpdate("SELECT*FROMBookInWHERE *id='"+id+"'");**if(rtn!=0){returntrue;}else{returnfalse;}}catch(Exception*e){System.out.println(e);returnfalse;}}*/}//出库数据库代码：importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.Statement;classBookDatabase1{Connectioncon;ResultSetrs;Statementstmt;publicBookDatabase1(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//加载JDBC-ODBC桥驱动程序Stringurl="jdbcdbc:Book";con=DriverManager.getConnection(url);//连接数据库HDB//stmt提供一个创建SQL查询、执行查询、得到返回结果的空间stmt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);}catch(Exceptionex){System.out.println(ex);}}/**增加一行用户名、密码数据publicbooleaninsertData(Stringid,Stringname,String*where,String**price,Stringdate){try{intrtn=stmt.executeUpdate("INSERTINTO*BookInVALUES('"+id+**"','"+name+"','"+where+"','"+price+"','"+date+"')");**if(rtn!=0){returntrue;}else{returnfalse;}}catch(Exception*et){System.out.println(et);returnfalse;}}*/publicbooleandeleteData(Stringid){try{intrtn=stmt.executeUpdate("DELETEFROMBookWHEREid='"+id+"'");if(rtn!=0){returntrue;}else{returnfalse;}}catch(Exceptione){System.out.println(e);returnfalse;}}/**publicbooleanSelect(Stringid){try{intrtn=*stmt.executeUpdate("SELECT*FROMBookInWHEREid='"+id+"'");if(rtn!=*0){returntrue;}else{returnfalse;}}catch(Exceptione){*System.out.println(e);returnfalse;}}*/}//查询数据库代码;importjava.awt.*;importjava.awt.event.*;importjava.sql.*;importjavax.swing.*;classBookDatabase2extendsJFrame{Stringnumber,name,address,prices,day;Connectioncon;Statementstmt=null;ResultSetresult=null;Stringsql=null;publicBookDatabase2(){try{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//加载JDBC-ODBC桥驱动程序Stringurl="jdbc:odbc:Book";con=DriverManager.getConnection(url);//连接数据库HDB//stmt提供一个创建SQL查询、执行查询、得到返回结果的空间stmt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);}catch(Exceptionex){System.out.println(ex);}}publicvoidselect(Stringid){try{sql="SELECT*FROMBookwhereid='"+id+"'";result=stmt.executeQuery(sql);while(result.next()){number=result.getString(1);name=result.getString(2);address=result.getString(3);prices=result.getString(4);day=result.getString(4);}JOptionPane.showMessageDialog(BookDatabase2.this,"成功查询图书!\n"+"图书ID:"+number+"\n"+"图书名称:"+name+"\n"+"出版社"+address+"\n"+"价格:"+prices+"\n"+"出版日期:"+day+"\n","提示",JOptionPane.ERROR_MESSAGE);}catch(Exceptione){System.out.println(e);}}。

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图书管理系统---java代码：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");MenuItem 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(mdenglu);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);setResizable(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() == 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);validate();} // 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",RMATION_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, lpublish, 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("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, 25);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, 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();String spublish = tpublish.getText();String sdate = tdate.getText();String scomment = tcomment.getText();String insertstr = "insert into book values" + "(" + "'" + sname + "'"+ "," + "'" + sauthor + "'" + "," + "'" + spublish + "'" + ","+ "'" + sdate + "'" + "," + "'" + scomment + "'" + ")"; // SQL语句Connection con;Statement sta;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"); // 连接数据库sta = con.createStatement();sta.executeUpdate(insertstr); // 执行SQL语句con.close(); // 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",RMATION_MESSAGE);} catch (SQLException 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 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(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;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(btnchaxun);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);btnchaxun.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;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 + "'");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");tachaxun.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.executeQuery("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.WARNING_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 Label("", 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);add(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);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", "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: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_MESSAGE);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",RMATION_MESSAGE);tshanchu.setText("");} elsetshanchu.setText("");con.close();}} catch (SQLException eee) {System.out.println(eee);}}}}class Denglu extends Panel implements ActionListener {Label lzhanghao;TextField tzhanghao;Label lmima;TextField tmima;Button bdenglu;Denglu(){setLayout(null);lzhanghao=new Label("账号");tzhanghao=new TextField();lmima=new Label("密码");tmima=new TextField();bdenglu=new Button("登陆");add(lzhanghao);add(tzhanghao);add(lmima);add(tmima);add(bdenglu);tzhanghao.setText("");tmima.setText("");lzhanghao.setBounds(50, 25, 50, 30);tzhanghao.setBounds(100, 30, 200, 20);lmima.setBounds(50, 80, 50, 30);tmima.setBounds(100, 80, 200, 20);bdenglu.setBounds(140, 130, 50, 30);setBackground(Color.white);setVisible(true);bdenglu.addActionListener(this);validate();}public void actionPerformed(ActionEvent e) {String x=tzhanghao.getText();String y=tmima.getText();if(x.equals("weifang")&&y.equals("123") ){JOptionPane.showMessageDialog(this, "登陆成功", "提示",RMATION_MESSAGE);}else{JOptionPane.showMessageDialog(this, "账号或者密码错误","提示",JOptionPane.WARNING_MESSAGE);}}}。

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