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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