Java+MySQL实现图书管理系统(完整代码)

（完整代码+实训报告）：

链接: https://pan.baidu.com/s/1E6BhEaHMa6Wch5yf6YAjOA 提取码: vnrx

觉着有用就点个赞哦~

一，功能 管理员登录 图书借阅信息管理 图书信息管理 管理员更改密码 退出系统二，工具 Eclipse Version: 2018-09 (4.9.0) MySQL Workbench 8.0 CE mysql-connector-java-8.0.13.jar三、效果图：

登录界面：

主界面：

借阅书籍管理：

个人书库管理：

更改密码：

四、数据库设计

1）图书表

2）用户表

两个数据表间没有关联：

五、JAVA层次分析

（1）逻辑图

（2）包结构，采用MVC三层架构组织各个模块

六、主要Java代码分析

Dao类（以BookDao为例）

package pers.cyz.dao; import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.ArrayList;import java.util.List; import pers.cyz.model.Book;import pers.cyz.util.DBUtil; /** * 数据库图书表信息数据访问对象类，包含增加图书信息、删除图书信息 * 、更新图书信息、查询图书信息、查询借阅信息和归还图书 * * @author 1651200111 陈彦志 */public class BookDao { /** * 增加图书信息 */ public void addBook(Book book) throws Exception{ // 首先拿到数据库的连接 Connection con = DBUtil.getConnection(); String sql='insert into tb_books' // ISBN、书名、图书价格、图书作者、出版社 + '(ISBN, book_name, book_price, book_author, published_house,' // 分类号、借书人姓名、借书人电话、借书日期，已借天数 + 'book_category, borrower_name, borrower_phone) ' + 'values(' /* * 参数用?表示，相当于占位符，然后在对参数进行赋值。当真正执行时， * 这些参数会加载在SQL语句中，把SQL语句拼接完整才去执行。这样就会减少对数据库的操作 */ + '?,?,?,?,?,?,?,?)'; /* * prepareStatement这个方法会将SQL语句加载到驱动程序conn集成程序中， * 但是并不直接执行,而是当它调用execute()方法的时候才真正执行； */ PreparedStatement psmt = con.prepareStatement(sql); // 先对应SQL语句，给SQL语句传递参数 psmt.setString(1, book.getISBN()); psmt.setString(2, book.getBookName()); psmt.setFloat(3, book.getPrice()); psmt.setString(4, book.getAuthor()); psmt.setString(5, book.getPublishHouse()); psmt.setString(6, book.getBookCategory()); if (book.getBorrowerName() == null || book.getBorrowerName() == '') { psmt.setString(7, null); } else { psmt.setString(7, book.getBorrowerName()); } if (book.getBorrowerPhone() == null || book.getBorrowerPhone() == '') { psmt.setString(8, null); } else { psmt.setString(8, book.getBorrowerPhone()); } //执行SQL语句 psmt.execute(); } /** * 删除图书信息 */ public void delBook(int ID) throws SQLException{ // 首先拿到数据库的连接 Connection con=DBUtil.getConnection(); String sql='' + 'DELETE FROM tb_books '+ // 参数用?表示，相当于占位符 'WHERE ID = ?'; // 预编译sql语句 PreparedStatement psmt = con.prepareStatement(sql); // 先对应SQL语句，给SQL语句传递参数 psmt.setInt(1, ID); // 执行SQL语句 psmt.execute(); } /** * 更新图书信息 */ public void changeBook(Book book) throws SQLException{ // 首先拿到数据库的连接 Connection con=DBUtil.getConnection(); String sql='update tb_books ' + 'set ISBN = ?, book_name = ?, book_price = ?, book_author = ?' + ',published_house = ?, book_category = ?, borrower_name = ?, borrower_phone = ? ' // 参数用?表示，相当于占位符 + 'where ID = ?'; // 预编译sql语句 PreparedStatement psmt = con.prepareStatement(sql); // 先对应SQL语句，给SQL语句传递参数 psmt.setString(1, book.getISBN()); psmt.setString(2, book.getBookName()); psmt.setFloat(3, book.getPrice()); psmt.setString(4, book.getAuthor()); psmt.setString(5, book.getPublishHouse()); psmt.setString(6, book.getBookCategory()); if (book.getBorrowerName().equals('')) { psmt.setString(7, null); } else { psmt.setString(7, book.getBorrowerName()); } if (book.getBorrowerPhone().equals('')) { psmt.setString(8, null); } else { psmt.setString(8, book.getBorrowerPhone()); } psmt.setInt(9, book.getID()); // 执行SQL语句 psmt.execute(); } /** * 查询书籍信息 */public List<Book> query() throws Exception{ Connection con = DBUtil.getConnection(); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery('select '// ISBN、书名、作者、图书价格、出版社+ 'ID, ISBN, book_name, book_author, book_price, published_house, '// 分类号、借书人姓名、借书人电话+ 'book_category, borrower_name, borrower_phone '+ 'from tb_books'); List<Book> bookList = new ArrayList<Book>(); Book book = null; // 如果对象中有数据，就会循环打印出来while (rs.next()){ book = new Book(); book.setID(rs.getInt('ID'));book.setISBN(rs.getString('ISBN'));book.setBookName(rs.getString('book_name')); book.setAuthor(rs.getString('book_author'));book.setPrice(rs.getFloat('book_price'));book.setPublishHouse(rs.getString('published_house'));book.setBookCategory(rs.getString('book_category'));book.setBorrowerName(rs.getString('borrower_name'));book.setBorrowerPhone(rs.getString('borrower_phone'));bookList.add(book); } return bookList; } /** * 查询借阅信息 * * @return * bookList */public List<Book> borrowQuery() throws Exception{ Connection con = DBUtil.getConnection(); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery(''// ID、书名、借书人姓名、借书人电话+ 'SELECT ID, book_name, borrower_name, borrower_phone '+ 'FROM tb_books '+ 'WHERE borrower_name IS NOT NULL'); List<Book> bookList = new ArrayList<Book>(); Book book = null; // 如果对象中有数据，就会循环打印出来while (rs.next()){ book = new Book(); book.setID(rs.getInt('ID'));book.setBookName(rs.getString('book_name')); book.setBorrowerName(rs.getString('borrower_name'));book.setBorrowerPhone(rs.getString('borrower_phone'));bookList.add(book); } return bookList; } /** * 更新图书信息，归还图书 */ public void returnBook(Book book) throws SQLException{ // 首先拿到数据库的连接 Connection con=DBUtil.getConnection(); String sql='UPDATE tb_books ' // ISBN、图书名称、作者、价格 + 'SET ' // 借书人姓名、借书人电话 + 'borrower_name = ?, borrower_phone = ? ' // 参数用?表示，相当于占位符 + 'WHERE ID = ?'; // 预编译sql语句 PreparedStatement psmt = con.prepareStatement(sql); // 先对应SQL语句，给SQL语句传递参数 psmt.setString(1, book.getBorrowerName()); psmt.setString(2, book.getBorrowerPhone()); psmt.setInt(3, book.getID()); // 执行SQL语句 psmt.execute(); }}

重点内容 ：

JDBC进行简单的数据库增删改查

详细参考：https://www.jb51.net/article/204374.htm

Model类（以Book为例）

package pers.cyz.model; /** * 图书模型类,包含数据库图书表各对应的字段get、set方法 * * @author 1651200111 陈彦志 */public class Book {private int ID;// ISBN号private String ISBN;// 图书名称private String bookName;// 图书价格private float price;// 图书作者private String author;// 出版社private String publishedHouse;// 图书分类号private String bookCategory;// 借书人姓名private String borrowerName;// 借书人电话private String borrowerPhone; /** * 获取ID */public int getID() {return ID;}/** * 设置ID */public void setID(int iD) {ID = iD;}/** * 获取ISBN */public String getISBN() {return ISBN;}/** * 设置ISBN */public void setISBN(String iSBN) {ISBN = iSBN;}/** * 获取图书名称 */public String getBookName() {return bookName;}/** * 设置图书名称 */public void setBookName(String bookName) {this.bookName = bookName;}/** * 获取图书价格 */public float getPrice() {return price;}/** * 设置图书价格 */public void setPrice(float price) {this.price = price;}/** * 获取图书作者 */public String getAuthor() {return author;}/** * 设置图书作者 */public void setAuthor(String author) {this.author = author;}/** * 获取出版社 */public String getPublishHouse() {return publishedHouse;}/** * 设置出版社 */public void setPublishHouse(String publishedHouse) {this.publishedHouse = publishedHouse;}/** * 获取图书分类信息 */public String getBookCategory() {return bookCategory;}/** * 设置图书分类信息 */public void setBookCategory(String bookCategory) {this.bookCategory = bookCategory;}/** * 获取借书人姓名 */public String getBorrowerName() {return borrowerName;}/** * 设置借书人姓名 */public void setBorrowerName(String borrowerName) {this.borrowerName = borrowerName;}/** * 获取借书人电话 */public String getBorrowerPhone() {return borrowerPhone;}/** * 设置借书人电话 */public void setBorrowerPhone(String borrowerPhone) {this.borrowerPhone = borrowerPhone;} }

重点内容 ：

主要就是数据库对应表中各对应的字段get、set方法

Eclipse技巧：

Shift + alt + s -> Generate Getters and Setters -> Select all -> Generate 自动生成set、get方法

Controller类（以BookAction为例）

package pers.cyz.controller; import java.util.List; import javax.swing.JTable;import javax.swing.JTextField; import pers.cyz.dao.BookDao;import pers.cyz.model.Book; /** * 图书信息行为控制类，包含增加图书、删除图书 * 、 修改图书、和初始化个人书库管理窗体表格 * * @author 1651200111 陈彦志 */public class BookAction { /** * 初始化窗体表格 * @return * results */@SuppressWarnings('rawtypes')public Object[][] initializTable(String[] columnNames) throws Exception{BookDao bookDao = new BookDao();List list = bookDao.query();Object[][] results = new Object[list.size()][columnNames.length];for(int i = 0; i < list.size(); i++) {Book book = (Book)list.get(i);results[i][0] = book.getID();results[i][1] = book.getBookName();results[i][2] = book.getAuthor();results[i][3] = book.getPrice();results[i][4] = book.getISBN();results[i][5] = book.getPublishHouse();results[i][6] = book.getBookCategory();String borrowerName = book.getBorrowerName();if (borrowerName == null) {borrowerName = '';results[i][7] = borrowerName;}else {results[i][7] = borrowerName;}String borrowerPhone = book.getBorrowerPhone();if (borrowerPhone == null) {borrowerPhone = '';results[i][8] = borrowerPhone;}else {results[i][8] = borrowerPhone;}} return results;} /** * 添加图书信息 */public void addBookInformation (JTextField textFieldISBN, JTextField textFieldName,JTextField textFieldPrice, JTextField textFieldAuthor, JTextField textFieldPublishedHouse, JTextField textFieldBookCategory, JTextField textFieldBorrowName, JTextField textFieldBorrowPhone) throws Exception { BookDao bookDao=new BookDao(); Book book=new Book(); book.setISBN(textFieldISBN.getText()); book.setBookName(textFieldName.getText()); float price = Float.parseFloat(textFieldPrice.getText()); book.setPrice(price); book.setAuthor(textFieldAuthor.getText()); book.setPublishHouse(textFieldPublishedHouse.getText()); book.setBookCategory(textFieldBookCategory.getText()); if (textFieldBorrowName.getText() == null ||textFieldBorrowName.getText() == '' ) { book.setBorrowerName(null); } else { book.setBorrowerName(textFieldBorrowName.getText()); } if (textFieldBorrowPhone.getText() == null || textFieldBorrowPhone.getText() == '') { book.setBorrowerPhone(null); } else { book.setBorrowerPhone(textFieldBorrowPhone.getText()); } //添加图书 bookDao.addBook(book);} /** * 删除图书信息 */public void delBookInformation (JTable table) throws Exception {int selRow = table.getSelectedRow();int ID = Integer.parseInt(table.getValueAt(selRow, 0).toString()); BookDao bookDao=new BookDao(); Book book=new Book(); book.setID(ID); // 删除图书信息 bookDao.delBook(ID);}/** * 修改图书信息 */public void changeBookInformation (JTextField textFieldISBN, JTextField textFieldName,JTextField textFieldPrice, JTextField textFieldAuthor, JTextField textFieldPublishedHouse, JTextField textFieldBookCategory, JTextField textFieldBorrowerName, JTextField textFieldBorrowerPhone, JTable table) throws Exception{ BookDao bookDao=new BookDao(); Book book=new Book(); int selRow = table.getSelectedRow();int ID = Integer.parseInt(table.getValueAt(selRow, 0).toString()); book.setID(ID); book.setISBN(textFieldISBN.getText()); book.setBookName(textFieldName.getText()); book.setAuthor(textFieldAuthor.getText()); float price = Float.parseFloat(textFieldPrice.getText()); book.setPrice(price); book.setPublishHouse(textFieldPublishedHouse.getText()); book.setBookCategory(textFieldBookCategory.getText()); book.setBorrowerName(textFieldBorrowerName.getText()); book.setBorrowerPhone(textFieldBorrowerPhone.getText()); //修改图书 bookDao.changeBook(book); }}

util类（以DBUtil为例）

package pers.cyz.util; import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException; /** * 连接数据库类，包含一个对外提供获取数据库连接的方法 * * @author 1651200111 陈彦志 */public class DBUtil {// 数据库连接路径private static final String URL = 'jdbc:mysql://127.0.0.1:3306/db_books?'+ 'useUnicode = true & serverTimezone = GMT'// MySQL在高版本需要指明是否进行SSL连接+ '& characterEncoding = utf8 & useSSL = false';private static final String NAME = 'root';private static final String PASSWORD = 'root';private static Connection conn = null;// 静态代码块（将加载驱动、连接数据库放入静态块中） static{ try { // 加载驱动程序 Class.forName('com.mysql.cj.jdbc.Driver'); // 获取数据库的连接 conn = DriverManager.getConnection(URL, NAME, PASSWORD); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } } // 对外提供一个方法来获取数据库连接 public static Connection getConnection(){ return conn; }}

util类（以BackgroundImage为例）

package pers.cyz.util; import java.awt.Container; import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel; /** * 设置背景图片类 * * @author 1651200111 陈彦志 */public class BackgroundImage {public BackgroundImage(JFrame frame,Container container,String ImageName) {// 限定加载图片路径ImageIcon icon= new ImageIcon('res/' + ImageName);final JLabel labelBackground = new JLabel();ImageIcon iconBookManageSystemBackground = icon;labelBackground.setIcon(iconBookManageSystemBackground);// 设置label的大小labelBackground.setBounds(0,0,iconBookManageSystemBackground.getIconWidth(),iconBookManageSystemBackground.getIconHeight());// 将背景图片标签放入桌面面板的最底层frame.getLayeredPane().add(labelBackground,new Integer(Integer.MIN_VALUE));// 将容器转换为面板设置为透明JPanel panel = (JPanel)container;panel.setOpaque(false);}}

重点内容 ：

将图片标签放在窗体底层面板，然后将窗体转化为容器，将容器面板设为透明，背景图片就设置好了，之后就可以直接在该容器中添加组件

将所有两个或两个以上类需要用到的代码段全部封装到了公共类。整体按照MVC三层架构组织

参考文章：https://www.jb51.net/article/204374.htm

参考文章：https://www.jb51.net/article/88326.htm

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