大家好，又见面了，我是你们的朋友全栈君。

本项目为Java swing项目，在工作环境中基本使用不到，但是很多学校把这个当做编程入门的项目来做，故分享出本项目供初学者参考。

CSDN赞助下载：https://download.csdn.net/download/weixin_44893902/20367467

一、效果演示：

主要功能：

①基本数据维护：
图书类别管理 >> 图书类别添加、图书类别维护
图书管理 >> 图书添加、图书维护
②关于我们
在这里插入图片描述

1、登录界面

2、主界面：

3、图书类别维护

4、图书类别添加

5、图书维护

6、图书添加

7、关于我们

可全部缩小到左下角

二、核心代码：

1、Util包【存放数据库连接工具】

① DBTool（数据库连接工具类）

package cn.ac.azure.util;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
/** * 数据库连接工具类 * @author 明金同学 * */
public class DBTool { 

private static String driver;  //数据库驱动
private static String url;  //数据库连接地址
private static String user; //数据库连接用户
private static String password;  //数据库连接密码
static{ 

//新建一个properties,用于读取db.properties配置文件
Properties p=new Properties();
//新建一个字符串,保存配置文件的路径
String path="cn//ac//azure//util//db.properties";
try { 

//调用Properties.load通过类加载获得配置文件的输入流
p.load(DBTool.class.getClassLoader().getResourceAsStream(path));
//读取配置文件中的配置参数
driver=p.getProperty("driver");  //获取驱动
url=p.getProperty("url");  //获取数据库连接地址
user=p.getProperty("user");  //获取数据库用户
password=p.getProperty("password");  //获取数据库密码
try { 

//加载数据库驱动类到程序中
Class.forName(driver);
} catch (ClassNotFoundException e) { 

e.printStackTrace();
throw new RuntimeException("加载驱动失败",e);
}
} catch (IOException e) { 

e.printStackTrace();
throw new RuntimeException("找不到配置文件",e);
}
}
/** * 获取数据库连接 * @return 数据库连接对象 * @throws SQLException 提醒调用者捕获异常,并在finally中关闭关闭异常 */
public static Connection getConnetion() throws SQLException{ 

//通过DriverManager获得数据库连接
return DriverManager.getConnection(url, user, password);
}
/** * 关闭数据库连接 * @param con */
public static void close(Connection con){ 

if(con!=null){ 
 //如果数据连接不为空
try { 

//关闭数据库连接
con.close();
} catch (SQLException e) { 

e.printStackTrace();
throw new RuntimeException("数据库关闭失败",e);
}
}
}
// /**
// * 测试数据库连接工具是否可用
// * @param args
// */
// public static void main(String[] args) { 

// Connection con=null;
// try { 

// con=DBTool.getConnetion();
// System.out.println("数据库连接成功!");
// } catch (SQLException e) { 

// System.out.println("数据库连接失败!");
// e.printStackTrace();
// }finally{ 

// DBTool.close(con);
// }
// }
}

② db.properties（配置文件）

2、model包【存放实体类】

① Book（图书实体类）

 package cn.ac.azure.model;
/** * 图书实体 * @author 明金同学 * */
public class Book { 

private Integer id;  //图书id
private String bookName;  //图书名称
private String author;  //图书作者
private String sex;     //作者性别
private Float price;    //图书价格
private Integer bookTypeId;  //图书类别ID
private String bookTypeName;  //图书类别名称
private String bookDesc;  //图书描述
public Book() { 

super();
}
public Book(Integer id, String bookName, String author, String sex, Float price, Integer bookTypeId,
String bookTypeName, String bookDesc) { 

super();
this.id = id;
this.bookName = bookName;
this.author = author;
this.sex = sex;
this.price = price;
this.bookTypeId = bookTypeId;
this.bookTypeName = bookTypeName;
this.bookDesc = bookDesc;
}
public Integer getId() { 

return id;
}
public void setId(Integer id) { 

this.id = id;
}
public String getBookName() { 

return bookName;
}
public void setBookName(String bookName) { 

this.bookName = bookName;
}
public String getAuthor() { 

return author;
}
public void setAuthor(String author) { 

this.author = author;
}
public String getSex() { 

return sex;
}
public void setSex(String sex) { 

this.sex = sex;
}
public Float getPrice() { 

return price;
}
public void setPrice(Float price) { 

this.price = price;
}
public Integer getBookTypeId() { 

return bookTypeId;
}
public void setBookTypeId(Integer bookTypeId) { 

this.bookTypeId = bookTypeId;
}
public String getBookTypeName() { 

return bookTypeName;
}
public void setBookTypeName(String bookTypeName) { 

this.bookTypeName = bookTypeName;
}
public String getBookDesc() { 

return bookDesc;
}
public void setBookDesc(String bookDesc) { 

this.bookDesc = bookDesc;
}
@Override
public String toString() { 

return "Book [测试=" + id + ", bookName=" + bookName + ", author=" + author + ", sex=" + sex + ", price=" + price
+ ", bookTypeId=" + bookTypeId + ", bookTypeName=" + bookTypeName + ", bookDesc=" + bookDesc + "]";
}
}

② BookType（图书类别实体类）

package cn.ac.azure.model;
/** * 图书类别实体 * @author 明金同学 * */
public class BookType { 

private int id;  //定义ID
private String bookTypeName;  //定义图书类别名称
private String bookTypeDesc;  //定义图书类别描述
//无参构造器
public BookType() { 

}
//有参构造函数
public BookType(String bookTypeName, String bookTypeDesc) { 

super();
this.bookTypeName = bookTypeName;
this.bookTypeDesc = bookTypeDesc;
}
public BookType(int id, String bookTypeName, String bookTypeDesc) { 

super();
this.id = id;
this.bookTypeName = bookTypeName;
this.bookTypeDesc = bookTypeDesc;
}
public int getId() { 

return id;
}
public void setId(int id) { 

this.id = id;
}
public String getBookTypeName() { 

return bookTypeName;
}
public void setBookTypeName(String bookTypeName) { 

this.bookTypeName = bookTypeName;
}
public String getBookTypeDesc() { 

return bookTypeDesc;
}
public void setBookTypeDesc(String bookTypeDesc) { 

this.bookTypeDesc = bookTypeDesc;
}
@Override
public String toString() { 

return "BookType [id=" + id + ", bookTypeName=" + bookTypeName + ", bookTypeDesc=" + bookTypeDesc + "]";
}
}

③ User（用户实体类）

package cn.ac.azure.model;
/** * 用户实体 * @author 明金同学 * */
public class User { 

private int id;              //用户id
private String username;     //用户名称
private String password;     //用户密码
public User() { 

}
@Override
public String toString() { 

return "User [id=" + id + ", username=" + username + ", password=" + password + "]";
}
public User(String username, String password) { 

super();
this.username = username;
this.password = password;
}
public int getId() { 

return id;
}
public void setId(int id) { 

this.id = id;
}
public String getUsername() { 

return username;
}
public void setUsername(String username) { 

this.username = username;
}
public String getPassword() { 

return password;
}
public void setPassword(String password) { 

this.password = password;
}
}

3、Dao包【数据库访问层】

① BookDao（图书dao类）

package cn.ac.azure.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import cn.ac.azure.model.Book;
/** * 图书dao类 * @author 明金同学 * */
public class BookDao { 

/** * 图书添加 * @param con 数据库库连接对象 * @param book 添加的图书对象 * @return 返回添加操作的数据库记录数 * @throws SQLException 抛出数据库异常 */
public int add(Connection con,Book book) throws SQLException{ 

//拼写sql插入语句
String sql="insert into t_book values(null,'"+book.getBookName()+"','"+book.getAuthor()+"','"+book.getSex()+"','"+book.getPrice()+"','"+book.getBookTypeId()+"','"+book.getBookTypeName()+"','"+book.getBookDesc()+"')";
System.out.println(sql);
//获得预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
/*ps.setString(1,book.getBookName()); //设置图书名称 ps.setString(2,book.getAuthor()); //设置图书作者 ps.setString(3, book.getSex()); //设置作者性别 ps.setFloat(4, book.getPrice()); //设置图书价格 ps.setInt(5, book.getBookTypeId()); //设置图书类别ID ps.setString(6, book.getBookDesc()); //设置图书描述 */		//执行sql语句，并返回插入的记录数
return ps.executeUpdate();
}
/** * 图书查询 * @param con 数据库连接对象 * @param book 图书对象 * @return 查询的结果集 * @throws SQLException 抛出数据库异常 */
public ResultSet search(Connection con,Book book) throws SQLException{ 

//定义图书名称
String bookName=null;
//定义图书作者
String author=null;
//定义图书类别名称
String bookTypeName=null;
//如果图书不为空的话，就为前三个字段赋值，按照条件查询
if(book!=null){ 

bookName=book.getBookName();
author=book.getAuthor();
bookTypeName=book.getBookTypeName();
}
//定义一个字符串缓冲对象类存储查询添加
StringBuilder sb=new StringBuilder("select * from t_book b , t_bookType bt where b.bookTypeId=bt.id ");
//查询条件有图书名称
if(!(bookName==null || "".equals(bookName.trim()))){ 

sb.append("and b.bookName like '%"+bookName+"%' ");
}
//查询条件有图书作者
if(!(author==null || "".equals(author.trim()))){ 

sb.append("and b.author like '%"+author+"%' ");
}
//查询条件有图书类别名称
if(!(bookTypeName==null || "".equals(bookTypeName.trim()))){ 

sb.append("and bt.bookTypeName like '%"+bookTypeName+"%' ");
}
//从sb生成sql语句
String sql=sb.toString();
//获取预处理对象
PreparedStatement ps=con.prepareStatement(sql);
//执行查询，并返回结果集
return ps.executeQuery();
}
/** * 图书修改 * @param con 数据库连接对象 * @param book 修改的图书对象 * @return 返回修改改变的记录数 * @throws SQLException 抛出数据库异常，同时提醒调用者关闭数据库 */
public int update(Connection con,Book book) throws SQLException{ 

//编写sql语句
String sql="update t_book set bookName=?,author=?,sex=?,"
+ "price=?,bookTypeId=?,bookDesc=? where id=?";
//获取预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps对象 
ps.setString(1, book.getBookName()); //图书名称
ps.setString(2, book.getAuthor());   //图书作者
ps.setString(3,book.getSex()); //作者性别
ps.setFloat(4, book.getPrice()); //图书价格
ps.setInt(5, book.getBookTypeId());  //图书类型Id
ps.setString(6, book.getBookDesc()); //图书描述
ps.setInt(7, book.getId());
//执行修改并返回改变的记录数
return ps.executeUpdate(); 
}
/** * 图书删除 * @param con 数据库连接对象 * @param id 删除图书的id * @return 返回删除的记录数 * @throws SQLException 抛出数据库异常，同时提醒调用者关闭数据库 */
public int delete(Connection con,int id) throws SQLException{ 

//编写sql语句
String sql="delete from t_book where id=?";
//获取预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
ps.setInt(1, id);
//执行DML删除语句并返回删除的记录数
return ps.executeUpdate();
}
}

② BookTypeDao（图书类别dao类）

package cn.ac.azure.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import cn.ac.azure.model.BookType;
/** * 图书类别dao类 * @author 明金同学 * */
public class BookTypeDao { 

/** * 图书类别添加 * @param con 数据库连接对象 * @param bookType 要添加的图书类别 * @return 返回数据库操作的记录数 * @throws SQLException */
public int add(Connection con,BookType bookType) throws SQLException{ 

//拼写sql插入语句
String sql="insert into t_bookType values(null,?,?)";
//创建预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
ps.setString(1, bookType.getBookTypeName()); //设置bookTypeName
ps.setString(2, bookType.getBookTypeDesc()); //设置bookTypeDesc
//返回数据库操作的记录数
return ps.executeUpdate();
}
/** * 图书类别查询 * @param con 数据库连接对象 * @param bookType 查询的图书类别 * @return 返回查询的结果集 * @throws SQLException 抛出数据库异常 */
public ResultSet search(Connection con,BookType bookType) throws SQLException{ 

/* * 思路：当jdbc查询数据库有多个条件从外部输入时，这是最好创建一个字符串缓冲类来添加条件到sql语句中。 * 同时，不知道有哪些条件是第一条件，无法确定where关键字的所在，于是添加条件都用（and 条件） * 最后字符串转换成字符串时在将第一个and替换成where */
//定义一个图书类别名称
String bookTypeName=null;
if(bookType!=null){ 
 //如果类别对象不为空的话，就获取它的类别名称
bookTypeName=bookType.getBookTypeName();
}
//创建一个字符串缓冲类
StringBuilder sb=new StringBuilder("select * from t_bookType");
//添加查询语句的条件（and + 条件）
if(!(bookTypeName==null || "".equals(bookTypeName.trim()))){ 

//jdbc中，数据库字符串要用单引号括起来
sb.append(" and bookTypeName like '%"+bookType.getBookTypeName()+"%'");
}
//将字符串缓冲对象转换成字符串，同时把第一个and替换成where
String sql=sb.toString().replaceFirst("and", "where");   
//获取预编译对象
PreparedStatement ps=con.prepareStatement(sql);
//返回ps执行查询之后的结果集
return ps.executeQuery();
}
/** * 图书类别修改 * @param con 数据路连接对象 * @param bookType 要修改的图书类别 * @return 返回数据库更新的记录数 * @throws SQLException 抛出数据库异常 */
public int update(Connection con,BookType bookType) throws SQLException{ 

//拼写sql更新语句
String sql="update t_bookType set bookTypeName=? , bookTypeDesc=? where id=?";
//获取预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
ps.setString(1,bookType.getBookTypeName());
ps.setString(2,bookType.getBookTypeDesc());
ps.setInt(3, bookType.getId());
//赶回ps更新数据库的记录数
return ps.executeUpdate();
}
/** * 删除数据库记录 * @param con 数据库连接对象 * @param id 传入删除记录的id * @return 返回删除的记录数 * @throws SQLException 抛出数据库异常 */
public int delete(Connection con,String id) throws SQLException{ 

//拼写sql删除语句
String sql="delete from t_bookType where id=?";
//获取预编译对象ps
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
ps.setString(1, id);
//执行ps更行操作，并返回改变的数据记录条数
return ps.executeUpdate();
}
}

③ UserDao（用户数据访问对象）

package cn.ac.azure.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import cn.ac.azure.model.User;
/** * 用户数据访问对象 * @author 明金同学 * */
public class UserDao { 

/** * 登录验证 * @param con 数据库连接对象 * @param user 登录的账户 * @return 返回一个用户对象,为null,则登录失败;反之,则登录成功 * @throws Exception 让调用者处理异常 */
public User login(Connection con,User user) throws SQLException{ 

//定义一个返回用户对象
User resultUser=null;
//拼写sql查询语句
String sql="select * from t_user where username=? and password=?";
//获取sql语句预编译对象
PreparedStatement ps=con.prepareStatement(sql);
//设置ps参数
ps.setString(1, user.getUsername());
ps.setString(2, user.getPassword());
//ps执行sql查询语句返回结果集
ResultSet rs=ps.executeQuery();
//遍历结果集
while(rs.next()){ 

//初始化返回用户对象
resultUser=new User(); 
resultUser.setId(rs.getInt("id"));    //设置用户id
resultUser.setUsername(rs.getString("username"));  //设置用户名称
resultUser.setPassword(rs.getString("password"));  //设置用户密码
}
//返回用户对象
return resultUser;
}
}

4、View包【视图层】

① LoginFrame（登录界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.SQLException;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import cn.ac.azure.dao.UserDao;
import cn.ac.azure.model.User;
import cn.ac.azure.util.DBTool;
public class LoginFrame extends JFrame { 

static { 

try { 

// 这里是皮肤包可以随意切换
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.mcwin.McWinLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.smart.SmartLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.luna.LunaLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.aluminium.AluminiumLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.bernstein.BernsteinLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.hifi.HiFiLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.aero.AeroLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.mint.MintLookAndFeel");
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
| UnsupportedLookAndFeelException e) { 

e.printStackTrace();
}
}
private JPanel contentPane;
private JTextField usernameText;
private JPasswordField passwordText;
private JButton loginBtn;
private JButton resetBtn;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

LoginFrame frame = new LoginFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public LoginFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration<Object> keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setIconImage(Toolkit.getDefaultToolkit().getImage(LoginFrame.class.getResource("/images/logo.png")));
setResizable(false);
setTitle("管理员登录");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
JLabel lblNewLabel = new JLabel("\u56FE\u4E66\u7BA1\u7406\u7CFB\u7EDF");
lblNewLabel.setFont(new Font("宋体", Font.BOLD, 22));
lblNewLabel.setIcon(new ImageIcon(LoginFrame.class.getResource("/images/logo.png")));
JLabel lblNewLabel_1 = new JLabel("用户名 :");
lblNewLabel_1.setIcon(new ImageIcon(LoginFrame.class.getResource("/images/userName.png")));
usernameText = new JTextField();
usernameText.setColumns(10);
JLabel lblNewLabel_2 = new JLabel("密 码 :");
lblNewLabel_2.setIcon(new ImageIcon(LoginFrame.class.getResource("/images/password.png")));
passwordText = new JPasswordField();
//添加登陆按钮
loginBtn = new JButton("登录");
loginBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

loginActionPerformed(e);
}
});
loginBtn.setIcon(new ImageIcon(LoginFrame.class.getResource("/images/login.png")));
//添加重置按钮
resetBtn = new JButton("重置");
resetBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

resetActionPerformed(e);
}
});
resetBtn.setIcon(new ImageIcon(LoginFrame.class.getResource("/images/reset.png")));
GroupLayout gl_contentPane = new GroupLayout(contentPane);
gl_contentPane.setHorizontalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(106)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addComponent(lblNewLabel)
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(lblNewLabel_1)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(usernameText, GroupLayout.PREFERRED_SIZE, 142, GroupLayout.PREFERRED_SIZE))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(lblNewLabel_2)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(passwordText, GroupLayout.PREFERRED_SIZE, 144, GroupLayout.PREFERRED_SIZE))
.addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
.addGap(16)
.addComponent(loginBtn)
.addPreferredGap(ComponentPlacement.RELATED, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(resetBtn)))
.addPreferredGap(ComponentPlacement.RELATED)))
.addContainerGap(105, GroupLayout.PREFERRED_SIZE))
);
gl_contentPane.setVerticalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(25)
.addComponent(lblNewLabel)
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_1)
.addComponent(usernameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(lblNewLabel_2)
.addComponent(passwordText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(29)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(loginBtn)
.addComponent(resetBtn))
.addContainerGap())
);
contentPane.setLayout(gl_contentPane);
//设置窗口居中
this.setLocationRelativeTo(null);
}
/** * 登录事件处理 * @param evt */
private void loginActionPerformed(ActionEvent evt) { 

//从输入框获取用户名
String username=usernameText.getText().trim();
//从输入框获取密码
String password=passwordText.getText().trim();
//用户名不能为空或空字符串,否则结束事件处理
if(username==null || "".equals(username)){ 

JOptionPane.showMessageDialog(null, "用户名不能为空");
return;
}
//用户名不能为空或空字符串否则结束事件处理
if(password==null || "".equals(password)){ 

JOptionPane.showMessageDialog(null, "密码不能为空");
return;
}
//将从输入框获得信息新建一个对象
User user=new User(username, password);
//定义数据库连接
Connection con=null;
try { 

//利用数据库工具类获取数据库连接
con=DBTool.getConnetion();
//新建一个用户数据访问对象
UserDao userDao=new UserDao();
//调用其登录验证方法获取一个用户对象
User currUser=userDao.login(con, user);
//判断返回的用户对象
if(currUser!=null){ 
//不为空,表示登录成功
//进入主界面,并设置可见
new MainFrame().setVisible(true);
//释放当前窗口资源
dispose();
}else{ 
 //为空,表示登录不成功
JOptionPane.showMessageDialog(null, "登录失败(u_u)");
}
} catch (SQLException e) { 

e.printStackTrace();
throw new RuntimeException("登录失败",e);
}finally{ 

//关闭数据库连接
DBTool.close(con);
}
}
/** * 重置事件处理 * @param evt */
private void resetActionPerformed(ActionEvent evt) { 

usernameText.setText("");
passwordText.setText("");
}
}

② MainFrame（主界面）

package cn.ac.azure.view;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import javax.swing.ImageIcon;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class MainFrame extends JFrame { 

static { 

try { 

// 这里是皮肤包可以随意切换
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.mcwin.McWinLookAndFeel");
javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.smart.SmartLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.luna.LunaLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.aluminium.AluminiumLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.bernstein.BernsteinLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.hifi.HiFiLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.aero.AeroLookAndFeel");
// javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.mint.MintLookAndFeel");
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
| UnsupportedLookAndFeelException e) { 

e.printStackTrace();
}
}
private static final long serialVersionUID = 1L;
//定义内容窗格
private JPanel contentPane;
//定义桌面窗格
private JDesktopPane table;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

MainFrame frame = new MainFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public MainFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration<Object> keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setTitle("\u56FE\u4E66\u7BA1\u7406\u7CFB\u7EDF\u4E3B\u754C\u9762");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
JMenuBar menuBar = new JMenuBar();
menuBar.setToolTipText("");
setJMenuBar(menuBar);
JMenu menu = new JMenu("\u57FA\u672C\u6570\u636E\u7EF4\u62A4 ");
menu.setIcon(new ImageIcon(MainFrame.class.getResource("/images/base.png")));
menuBar.add(menu);
JMenu mnNewMenu = new JMenu("\u56FE\u4E66\u7C7B\u522B\u7BA1\u7406 ");
mnNewMenu.setIcon(new ImageIcon(MainFrame.class.getResource("/images/bookTypeManager.png")));
menu.add(mnNewMenu);
//图书类别添加
JMenuItem menuItem = new JMenuItem("\u56FE\u4E66\u7C7B\u522B\u6DFB\u52A0");
menuItem.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

BookTypeAddInterFrame bookTypeAddInterFrame=new BookTypeAddInterFrame();
bookTypeAddInterFrame.setVisible(true);
table.add(bookTypeAddInterFrame);
}
});
menuItem.setIcon(new ImageIcon(MainFrame.class.getResource("/images/add.png")));
mnNewMenu.add(menuItem);
//图书类别维护
JMenuItem menuItem_1 = new JMenuItem("\u56FE\u4E66\u7C7B\u522B\u7EF4\u62A4");
menuItem_1.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

BookTypeManageInterFrame bookTypeManageInterFrame=new BookTypeManageInterFrame();
bookTypeManageInterFrame.setVisible(true);
table.add(bookTypeManageInterFrame);
}
});
menuItem_1.setIcon(new ImageIcon(MainFrame.class.getResource("/images/edit.png")));
mnNewMenu.add(menuItem_1);
JMenu menu_1 = new JMenu("\u56FE\u4E66\u7BA1\u7406");
menu_1.setIcon(new ImageIcon(MainFrame.class.getResource("/images/bookManager.png")));
menu.add(menu_1);
//图书添加
JMenuItem menuItem_2 = new JMenuItem("\u56FE\u4E66\u6DFB\u52A0");
menuItem_2.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

BookAddInterFrame bookAddInterFrame=new BookAddInterFrame();
bookAddInterFrame.setVisible(true);
table.add(bookAddInterFrame);
}
});
menuItem_2.setIcon(new ImageIcon(MainFrame.class.getResource("/images/add.png")));
menu_1.add(menuItem_2);
//图书维护
JMenuItem menuItem_3 = new JMenuItem("\u56FE\u4E66\u7EF4\u62A4");
menuItem_3.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

BookManageInterFrame bookManageInterFrame=new BookManageInterFrame();
bookManageInterFrame.setVisible(true);
table.add(bookManageInterFrame);
}
});
menuItem_3.setIcon(new ImageIcon(MainFrame.class.getResource("/images/edit.png")));
menu_1.add(menuItem_3);
//安全退出
JMenuItem menuItem_4 = new JMenuItem("\u5B89\u5168\u9000\u51FA");
menuItem_4.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

//弹出退出确认提示框
int res=JOptionPane.showConfirmDialog(null, "确定要退出吗？");
//确定退出
if(res==JOptionPane.OK_OPTION){ 

dispose();
} 
//否则继续留在该界面
}
});
menuItem_4.setIcon(new ImageIcon(MainFrame.class.getResource("/images/exit.png")));
menu.add(menuItem_4);
JMenu menu_2 = new JMenu("\u5173\u4E8E\u6211\u4EEC");
menu_2.setIcon(new ImageIcon(MainFrame.class.getResource("/images/about.png")));
menuBar.add(menu_2);
//关于我们
JMenuItem menuItem_5 = new JMenuItem("\u5173\u4E8E\u6211\u4EEC");
menuItem_5.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

//新建一个图书内部窗体
LibraryInterFrame libraryInnerFrame=new LibraryInterFrame();
//显示图书内部窗体
libraryInnerFrame.setVisible(true);
//将图书内部窗体显示到主界面桌面窗格中
table.add(libraryInnerFrame);
}
});
menuItem_5.setIcon(new ImageIcon(MainFrame.class.getResource("/images/about.png")));
menu_2.add(menuItem_5);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
//定义主界面桌面窗格界面，用于装载内部窗体
table = new JDesktopPane();
table.setBackground(Color.LIGHT_GRAY);
contentPane.add(table, BorderLayout.CENTER);
//设置窗口最大化
setExtendedState(JFrame.MAXIMIZED_BOTH);
}
}

③ BookTypeManageInterFrame（图书类别管理界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import java.awt.Font;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.table.DefaultTableModel;
import cn.ac.azure.dao.BookTypeDao;
import cn.ac.azure.model.BookType;
import cn.ac.azure.util.DBTool;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JPanel;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
import javax.swing.JTextArea;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class BookTypeManageInterFrame extends JInternalFrame { 

private JTextField s_bookTypeNameText;
private JTable bookTypeTable;
private BookTypeDao bookTypeDao=new BookTypeDao();
private JTextField idText;
private JTextField bookTypeNameText;
private JTextArea bookTypeDescText;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

BookTypeManageInterFrame frame = new BookTypeManageInterFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public BookTypeManageInterFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setIconifiable(true);
setClosable(true);
setTitle("图书类别管理");
setBounds(400, 100, 535, 489);
JScrollPane scrollPane = new JScrollPane();
JLabel label = new JLabel("图书类别名称：");
s_bookTypeNameText = new JTextField();
s_bookTypeNameText.setColumns(10);
//查询按钮
JButton searchBtn = new JButton("查询");
searchBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

searchActionPerformed(e);
}
});
searchBtn.setIcon(new ImageIcon(BookTypeManageInterFrame.class.getResource("/images/search.png")));
JPanel panel = new JPanel();
panel.setBorder(new TitledBorder(null, "\u8868\u5355\u64CD\u4F5C", TitledBorder.LEADING, TitledBorder.TOP, null, null));
GroupLayout groupLayout = new GroupLayout(getContentPane());
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(56)
.addComponent(label)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(s_bookTypeNameText, GroupLayout.PREFERRED_SIZE, 167, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED, 54, Short.MAX_VALUE)
.addComponent(searchBtn)
.addGap(71))
.addGroup(groupLayout.createSequentialGroup()
.addGap(36)
.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING, false)
.addComponent(panel, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(scrollPane, Alignment.LEADING))
.addContainerGap(31, Short.MAX_VALUE))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(27)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(searchBtn)
.addComponent(label)
.addComponent(s_bookTypeNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 167, GroupLayout.PREFERRED_SIZE)
.addGap(18)
.addComponent(panel, GroupLayout.DEFAULT_SIZE, 194, Short.MAX_VALUE)
.addContainerGap())
);
JLabel label_1 = new JLabel("编号：");
idText = new JTextField();
idText.setEditable(false);
idText.setColumns(10);
JLabel label_2 = new JLabel("图书类别名称：");
bookTypeNameText = new JTextField();
bookTypeNameText.setColumns(10);
JLabel label_3 = new JLabel("描述：");
bookTypeDescText = new JTextArea();
//修改按钮
JButton modifyBtn = new JButton("修改");
modifyBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

bookTypeUpdateActionPerformed(e);
}
});
modifyBtn.setIcon(new ImageIcon(BookTypeManageInterFrame.class.getResource("/images/modify.png")));
//删除按钮
JButton deleteBtn = new JButton("删除");
deleteBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

bookTypeDeleteActionPerformed(e);
}
});
deleteBtn.setIcon(new ImageIcon(BookTypeManageInterFrame.class.getResource("/images/delete.png")));
GroupLayout gl_panel = new GroupLayout(panel);
gl_panel.setHorizontalGroup(
gl_panel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel.createSequentialGroup()
.addGap(19)
.addGroup(gl_panel.createParallelGroup(Alignment.TRAILING)
.addGroup(Alignment.LEADING, gl_panel.createSequentialGroup()
.addComponent(label_1)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(idText, GroupLayout.PREFERRED_SIZE, 47, GroupLayout.PREFERRED_SIZE)
.addGap(18)
.addComponent(label_2)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(bookTypeNameText, GroupLayout.PREFERRED_SIZE, 166, GroupLayout.PREFERRED_SIZE))
.addGroup(Alignment.LEADING, gl_panel.createSequentialGroup()
.addComponent(label_3)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookTypeDescText))
.addGroup(gl_panel.createSequentialGroup()
.addComponent(modifyBtn)
.addGap(54)
.addComponent(deleteBtn)
.addGap(64)))
.addContainerGap(56, GroupLayout.PREFERRED_SIZE))
);
gl_panel.setVerticalGroup(
gl_panel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel.createSequentialGroup()
.addContainerGap()
.addGroup(gl_panel.createParallelGroup(Alignment.BASELINE)
.addComponent(label_1)
.addComponent(idText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label_2)
.addComponent(bookTypeNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(27)
.addGroup(gl_panel.createParallelGroup(Alignment.BASELINE)
.addComponent(label_3)
.addComponent(bookTypeDescText, GroupLayout.PREFERRED_SIZE, 51, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addGroup(gl_panel.createParallelGroup(Alignment.BASELINE)
.addComponent(deleteBtn)
.addComponent(modifyBtn))
.addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
panel.setLayout(gl_panel);
//表格
bookTypeTable = new JTable();
//表格鼠标点击事件
bookTypeTable.addMouseListener(new MouseAdapter() { 

@Override
public void mousePressed(MouseEvent e) { 

bookTypeTableMousePressed(e);
}
});
bookTypeTable.setModel(new DefaultTableModel(
new Object[][] { 

},
new String[] { 

"编号", "图书类别名称", "图书类别描述"
}
) { 

boolean[] columnEditables = new boolean[] { 

false, false, false
};
public boolean isCellEditable(int row, int column) { 

return columnEditables[column];
}
});
bookTypeTable.getColumnModel().getColumn(1).setPreferredWidth(96);
bookTypeTable.getColumnModel().getColumn(2).setPreferredWidth(185);
scrollPane.setViewportView(bookTypeTable);
getContentPane().setLayout(groupLayout);
//设置文本域边框
bookTypeDescText.setBorder(new LineBorder(new java.awt.Color(127,157,185), 1, false));
//构造函数中调用填充表格数据函数，全部图书类别显示在表格中
fillTable(new BookType());
}
/** * 图书类别删除事件处理 * @param evt */
private void bookTypeDeleteActionPerformed(ActionEvent evt) { 

//获得表单中编号的值id
String id=idText.getText();
//判断表单有没有选中的图书类别记录
if(id==null || "".equals(id.trim())){ 

JOptionPane.showMessageDialog(null, "请选择要修改的记录！");
return;
}
//弹出确认框，是否要删除图书类别记录
int res=JOptionPane.showConfirmDialog(null, "你确定要删除该条记录吗？");
if(res!=0){ 
 //否
return; //结束该事件处理函数
}
//定义数据库连接
Connection con=null;
try { 

//获取数据路连接
con=DBTool.getConnetion();
int row=bookTypeDao.delete(con, id);
if(row==1){ 
//删除成功，弹出提示框
JOptionPane.showMessageDialog(null, "修改数据成功(n_n)");
//清空表单数据
resetValue();
//刷新表格记录显示
fillTable(new BookType());
}else{ 
//删除失败，弹出提示框
JOptionPane.showMessageDialog(null, "修改数据失败(u_u)");
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("删除记录失败！",e);
}finally{ 

//关闭数据库
DBTool.close(con);
}
}
/** * 图书类别修改事件处理 * @param evt */
private void bookTypeUpdateActionPerformed(ActionEvent evt) { 

//获取表单操作各个文本框的值
String id=idText.getText();
String bookTypeName=bookTypeNameText.getText();
String bookTypeDesc=bookTypeDescText.getText();
//判断表单有没有选中的图书类别记录
if(id==null || "".equals(id.trim())){ 

JOptionPane.showMessageDialog(null, "请选择要修改的记录！");
return;
}
//图书类别名称不能为空
if(bookTypeName==null || "".equals(bookTypeName.trim())){ 

JOptionPane.showMessageDialog(null, "图书类别名称不能为空！");
return;
}
//利用表单的数据新建一个图书类别对象
BookType bookType=new BookType(Integer.parseInt(id), bookTypeName, bookTypeDesc);
//定义数据库连接对象
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//执行图书类别dao类的修改记录方法
int res=bookTypeDao.update(con, bookType);
if(res==1){ 
//修改成功，弹出提示框
JOptionPane.showMessageDialog(null, "修改数据成功(n_n)");
//清空表单数据
resetValue();
//刷新表格记录显示
fillTable(new BookType());
}else{ 
//修改失败，弹出提示框
JOptionPane.showMessageDialog(null, "修改数据失败(u_u)");
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("修改图书类别失败",e);
}finally{ 

//关闭数据路连接
DBTool.close(con);
}
}
/** * 表格鼠标点击事件处理 * @param e */
private void bookTypeTableMousePressed(MouseEvent e) { 

//获取表格选中的行
int row=bookTypeTable.getSelectedRow();
//获取表中选中行的第一列的值并显示在idText框中
idText.setText(String.valueOf(bookTypeTable.getValueAt(row, 0)));
//获取表中选中行的第二列的值并显示在bookTypeNameText框中
bookTypeNameText.setText((String)bookTypeTable.getValueAt(row, 1));
//获取表中选中行的第三列的值并显示在bookTypeDescText框中
bookTypeDescText.setText((String)bookTypeTable.getValueAt(row, 2));
}
/** * 图书类别查询事件处理 * @param evt */
private void searchActionPerformed(ActionEvent evt) { 

//获取图书类别输入框里的内容
String s_bookTypeName=s_bookTypeNameText.getText();
//新建一个图书类别并初始化
BookType bookType=new BookType();
//将输入框的内容设置成新建图书类别的图书类别名称
bookType.setBookTypeName(s_bookTypeName);
//根据图书类别查询图书类别
fillTable(bookType);
}
/** * 在表格中填充数据 * @param bookType 传入bookType对象 */
private void fillTable(BookType bookType){ 

//获取表格的模型
DefaultTableModel dtm=(DefaultTableModel) bookTypeTable.getModel();
//清空表格
dtm.setRowCount(0); 
//定义数据库连接
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//调用BookTyPeDao的查询方法，并获得其查询的结果集
ResultSet rs=bookTypeDao.search(con, bookType);
//遍历结果集
while(rs.next()){ 

//新建一个vector并初始化
Vector v=new Vector(); 
v.add(rs.getInt("id"));  //向vector中添加id
v.add(rs.getString("bookTypeName")); //向vector中添加bookTypeName
v.add(rs.getString("bookTypeDesc"));  //向vector中添加bookTypeDesc
//将vector中的数据显示到表格中
dtm.addRow(v);
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("查询失败");
}finally{ 

//关闭数据库
DBTool.close(con);
}
}
/** * 清空表单数据 */
private void resetValue(){ 

idText.setText("");
bookTypeNameText.setText("");
bookTypeDescText.setText("");
s_bookTypeNameText.setText("");
}
}

④ BookTypeAddInterFrame（图书类别添加界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.SQLException;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.border.LineBorder;
import cn.ac.azure.dao.BookTypeDao;
import cn.ac.azure.model.BookType;
import cn.ac.azure.util.DBTool;
/** * 图书类别内部添加窗体 * @author green * */
public class BookTypeAddInterFrame extends JInternalFrame { 

//图书类别名称输入框
private JTextField bookTypeNameText;
//图书类别描述输入框
private JTextArea bookTypeDescText;
//重置按钮
private JButton resetBtn;
//添加按钮
private JButton addBtn;
//图书类别数据库访问对象
private BookTypeDao bookTypeDao;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

BookTypeAddInterFrame frame = new BookTypeAddInterFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public BookTypeAddInterFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setClosable(true);
setIconifiable(true);
setTitle("图书类别添加");
setBounds(100, 100, 487, 342);
JLabel label = new JLabel("图书类别名称：");
bookTypeNameText = new JTextField();
bookTypeNameText.setColumns(10);
JLabel label_1 = new JLabel("图书类别描述：");
bookTypeDescText = new JTextArea();
//添加按钮
addBtn = new JButton("添加");
addBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

addActionPerformed(e);
}
});
//重置按钮
resetBtn = new JButton("重置");
resetBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

resetActionPerformed(e);
}
});
GroupLayout groupLayout = new GroupLayout(getContentPane());
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(128)
.addComponent(addBtn)
.addGap(91)
.addComponent(resetBtn))
.addGroup(groupLayout.createSequentialGroup()
.addGap(89)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addComponent(bookTypeDescText)
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookTypeNameText, GroupLayout.PREFERRED_SIZE, 189, GroupLayout.PREFERRED_SIZE))
.addComponent(label_1))))
.addContainerGap(105, Short.MAX_VALUE))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(49)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(label)
.addComponent(bookTypeNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(18)
.addComponent(label_1)
.addGap(10)
.addComponent(bookTypeDescText, GroupLayout.PREFERRED_SIZE, 87, GroupLayout.PREFERRED_SIZE)
.addGap(41)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(resetBtn)
.addComponent(addBtn))
.addContainerGap())
);
getContentPane().setLayout(groupLayout);
//设置文本域边框
bookTypeDescText.setBorder(new LineBorder(new java.awt.Color(127,157,185), 1, false));
}
/** * 添加事件处理 * @param evt */
private void addActionPerformed(ActionEvent evt) { 

//获取输入框的值
String bookTypeName=bookTypeNameText.getText();
String bookTypeDesc=bookTypeDescText.getText();
if(bookTypeName==null || "".equals(bookTypeName.trim())){ 

JOptionPane.showMessageDialog(null,"图书类别不能为空！");
return;
}
//新建图书类别实体对象
BookType bookType=new BookType(bookTypeName, bookTypeDesc);
//定义数据库连接
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//初始化图书类别对象BookTypeDao
bookTypeDao=new BookTypeDao();
//调用图书类别dao对象的添加方法
int res=bookTypeDao.add(con, bookType);
if(res!=0){ 

//提示添加成功
JOptionPane.showMessageDialog(null, "图书添加成功(n_n)");
//清空输入框
bookTypeNameText.setText("");
bookTypeDescText.setText("");
}else{ 

//提示添加失败
JOptionPane.showMessageDialog(null,"图书添加失败(u_u)");
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("添加图书失败",e);
}finally{ 

//关闭数据库
DBTool.close(con);
}
}
/** * 重置事件处理 * @param evt */
private void resetActionPerformed(ActionEvent evt) { 

//置空图书类别名称输入框
bookTypeNameText.setText("");
//置空图书类别描述输入框
bookTypeDescText.setText("");
}
}

⑤ BookManageInterFrame（图书管理界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import java.awt.Font;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.UIManager;
import javax.swing.border.TitledBorder;
import javax.swing.table.DefaultTableModel;
import cn.ac.azure.dao.BookDao;
import cn.ac.azure.dao.BookTypeDao;
import cn.ac.azure.model.Book;
import cn.ac.azure.model.BookType;
import cn.ac.azure.util.DBTool;
import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class BookManageInterFrame extends JInternalFrame { 

private JTextField s_bookNameText;
private JTextField s_authorText;
private JTable bookTable;
private JComboBox s_bookTypecomboBox;
private BookTypeDao bookTypeDao;
private BookDao bookDao;
private JTextField idText;
private JTextField bookNameText;
private JTextField priceText;
private JTextField authorText;
private JTextField bookDescText;
private final ButtonGroup buttonGroup = new ButtonGroup();
private JComboBox bookTypeComboBox;
private JRadioButton maleBtn;
private JRadioButton femaleBtn;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

BookManageInterFrame frame = new BookManageInterFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public BookManageInterFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setIconifiable(true);
setClosable(true);
setTitle("图书管理 ");
setBounds(100, 100, 767, 528);
JPanel panel = new JPanel();
panel.setBorder(new TitledBorder(null, "搜索条件", TitledBorder.LEADING, TitledBorder.TOP, null, null));
JScrollPane scrollPane = new JScrollPane();
JPanel panel_1 = new JPanel();
panel_1.setBorder(new TitledBorder(null, "表单操作", TitledBorder.LEADING, TitledBorder.TOP, null, null));
GroupLayout groupLayout = new GroupLayout(getContentPane());
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(Alignment.TRAILING, groupLayout.createSequentialGroup()
.addGap(29)
.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING)
.addComponent(panel_1, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(scrollPane, GroupLayout.DEFAULT_SIZE, 661, Short.MAX_VALUE)
.addComponent(panel, GroupLayout.DEFAULT_SIZE, 661, Short.MAX_VALUE))
.addGap(38))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(29)
.addComponent(panel, GroupLayout.PREFERRED_SIZE, 75, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 137, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(panel_1, GroupLayout.PREFERRED_SIZE, 217, GroupLayout.PREFERRED_SIZE)
.addContainerGap(20, Short.MAX_VALUE))
);
JLabel label_2 = new JLabel("编号：");
idText = new JTextField();
idText.setColumns(10);
JLabel label_3 = new JLabel("图书名称：");
bookNameText = new JTextField();
bookNameText.setColumns(10);
JLabel label_4 = new JLabel("作者性别：");
maleBtn = new JRadioButton("男");
buttonGroup.add(maleBtn);
femaleBtn = new JRadioButton("女");
buttonGroup.add(femaleBtn);
JLabel label_5 = new JLabel("价格：");
priceText = new JTextField();
priceText.setColumns(10);
JLabel label_6 = new JLabel("图书作者：");
authorText = new JTextField();
authorText.setColumns(10);
JLabel label_7 = new JLabel("图书类别：");
bookTypeComboBox = new JComboBox();
JLabel label_8 = new JLabel("图书描述：");
bookDescText = new JTextField();
bookDescText.setColumns(10);
//修改按钮
JButton modifyBtn = new JButton("修改");
modifyBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

modifyBookActionPerformed(e);
}
});
modifyBtn.setIcon(new ImageIcon(BookManageInterFrame.class.getResource("/images/modify.png")));
//删除按钮
JButton deleteBtn = new JButton("删除");
deleteBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

deleteBookActionPerformed(e);
}
});
deleteBtn.setIcon(new ImageIcon(BookManageInterFrame.class.getResource("/images/delete.png")));
GroupLayout gl_panel_1 = new GroupLayout(panel_1);
gl_panel_1.setHorizontalGroup(
gl_panel_1.createParallelGroup(Alignment.TRAILING)
.addGroup(gl_panel_1.createSequentialGroup()
.addGap(44)
.addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING, false)
.addGroup(gl_panel_1.createSequentialGroup()
.addComponent(label_8)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookDescText))
.addGroup(gl_panel_1.createSequentialGroup()
.addGroup(gl_panel_1.createParallelGroup(Alignment.TRAILING)
.addComponent(label_2)
.addComponent(label_5))
.addPreferredGap(ComponentPlacement.UNRELATED)
.addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING, false)
.addComponent(priceText)
.addComponent(idText, GroupLayout.DEFAULT_SIZE, 86, Short.MAX_VALUE))
.addGap(37)
.addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING, false)
.addGroup(gl_panel_1.createSequentialGroup()
.addComponent(label_3)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookNameText, GroupLayout.PREFERRED_SIZE, 136, GroupLayout.PREFERRED_SIZE))
.addGroup(gl_panel_1.createSequentialGroup()
.addComponent(label_6)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(authorText)))
.addGap(35)
.addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel_1.createSequentialGroup()
.addComponent(label_4)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(maleBtn)
.addGap(18)
.addComponent(femaleBtn))
.addGroup(gl_panel_1.createSequentialGroup()
.addComponent(label_7)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(bookTypeComboBox, GroupLayout.PREFERRED_SIZE, 97, GroupLayout.PREFERRED_SIZE)))))
.addContainerGap(34, Short.MAX_VALUE))
.addGroup(gl_panel_1.createSequentialGroup()
.addContainerGap(201, Short.MAX_VALUE)
.addComponent(modifyBtn)
.addGap(104)
.addComponent(deleteBtn)
.addGap(190))
);
gl_panel_1.setVerticalGroup(
gl_panel_1.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel_1.createSequentialGroup()
.addContainerGap()
.addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE)
.addComponent(maleBtn)
.addComponent(bookNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label_3)
.addComponent(label_2)
.addComponent(idText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(femaleBtn)
.addComponent(label_4))
.addGap(18)
.addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE)
.addComponent(priceText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label_5)
.addComponent(label_6)
.addComponent(authorText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(bookTypeComboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label_7))
.addGap(18)
.addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE)
.addComponent(label_8)
.addComponent(bookDescText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(27)
.addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE)
.addComponent(modifyBtn)
.addComponent(deleteBtn))
.addContainerGap())
);
panel_1.setLayout(gl_panel_1);
//表格
bookTable = new JTable();
//表格鼠标按下事件
bookTable.addMouseListener(new MouseAdapter() { 

@Override
public void mousePressed(MouseEvent e) { 

tableMousePressed(e);
}
});
bookTable.setModel(new DefaultTableModel(
new Object[][] { 

},
new String[] { 

"编号", "图书名称", "图书作者", "图书性别", "图书价格", "图书类别", "图书描述"
}
) { 

boolean[] columnEditables = new boolean[] { 

false, false, false, false, false, false, false
};
public boolean isCellEditable(int row, int column) { 

return columnEditables[column];
}
});
bookTable.getColumnModel().getColumn(0).setPreferredWidth(56);
bookTable.getColumnModel().getColumn(1).setPreferredWidth(100);
bookTable.getColumnModel().getColumn(2).setPreferredWidth(63);
bookTable.getColumnModel().getColumn(3).setPreferredWidth(63);
bookTable.getColumnModel().getColumn(4).setPreferredWidth(61);
bookTable.getColumnModel().getColumn(5).setPreferredWidth(94);
bookTable.getColumnModel().getColumn(6).setPreferredWidth(163);
scrollPane.setViewportView(bookTable);
JLabel lblL = new JLabel("图书名称：");
s_bookNameText = new JTextField();
s_bookNameText.setColumns(10);
JLabel label = new JLabel("图书作者：");
s_authorText = new JTextField();
s_authorText.setColumns(10);
JLabel label_1 = new JLabel("图书类别：");
s_bookTypecomboBox = new JComboBox();
//图书查询按钮
JButton s_searchBtn = new JButton("查询");
s_searchBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

searchActionPerformed(e);
}
});
s_searchBtn.setIcon(new ImageIcon(BookManageInterFrame.class.getResource("/images/search.png")));
GroupLayout gl_panel = new GroupLayout(panel);
gl_panel.setHorizontalGroup(
gl_panel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel.createSequentialGroup()
.addGap(20)
.addComponent(lblL)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(s_bookNameText, GroupLayout.PREFERRED_SIZE, 88, GroupLayout.PREFERRED_SIZE)
.addGap(18)
.addComponent(label)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(s_authorText, GroupLayout.DEFAULT_SIZE, 89, Short.MAX_VALUE)
.addGap(18)
.addComponent(label_1)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(s_bookTypecomboBox, GroupLayout.PREFERRED_SIZE, 94, GroupLayout.PREFERRED_SIZE)
.addGap(18)
.addComponent(s_searchBtn)
.addGap(29))
);
gl_panel.setVerticalGroup(
gl_panel.createParallelGroup(Alignment.LEADING)
.addGroup(gl_panel.createSequentialGroup()
.addContainerGap()
.addGroup(gl_panel.createParallelGroup(Alignment.BASELINE)
.addComponent(lblL)
.addComponent(s_bookNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label)
.addComponent(s_authorText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(label_1)
.addComponent(s_bookTypecomboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(s_searchBtn))
.addContainerGap(19, Short.MAX_VALUE))
);
panel.setLayout(gl_panel);
getContentPane().setLayout(groupLayout);
//初始化搜索栏图书类别下拉框
fillBookTypeComboBox("search");
//初始化操作栏图书类别下拉框
fillBookTypeComboBox("modify");
//初始化表格显示，显示所有的书籍
fillBookTable(new Book());
}
/** * 图书修改事件 * @param evt */
private void modifyBookActionPerformed(ActionEvent evt) { 

//获取图书id
String id=idText.getText();
//获取图书名称
String bookName=bookNameText.getText();
//获取图书作者
String author=authorText.getText();
//或者作者性别
String sex="男";
if(femaleBtn.isSelected()){ 

sex="女";
}
//获取图书价格
String price=priceText.getText();
//获取图书id
BookType bookType=(BookType)bookTypeComboBox.getSelectedItem();
Integer bookTypeId=bookType.getId();
//获取图书描述
String bookDesc=bookDescText.getText();
//判断是否id是否为空
if(id==null || "".equals(id)){ 
 //为空
JOptionPane.showMessageDialog(null, "请选中要删除的行！");  //给用户提示
return;
}
//判断图书名称是否为空
if(bookName==null || "".equals(bookName)){ 
 //为空
JOptionPane.showMessageDialog(null, "图书名称不能为空！");  //给用户提示
return;
}
//判断图书作者是否为空
if(author==null || "".equals(author)){ 
 //为空
JOptionPane.showMessageDialog(null, "图书作者不能为空！");  //给用户提示
return;
}
//判断图书价格是否为空
if(price==null || "".equals(price)){ 
 //为空
JOptionPane.showMessageDialog(null, "图书价格不能为空！");  //给用户提示
return;
}
//从获取的图书信息创建图书对象
Book book=new Book(Integer.parseInt(id),bookName, author, sex, Float.parseFloat(price), bookTypeId, bookDesc, null);
System.out.println("从获取的图书信息创建图书对象:"+book);
//定义数据库连接
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//初始化图书数据访问对象
bookDao=new BookDao();
//执行图书访问对象的修改方法，并获得修改的记录数
int res=bookDao.update(con, book);
if(res==1){ 
 //为1
JOptionPane.showMessageDialog(null,"图书修改成功n_n");
//刷新图书表格显示
fillBookTable(new Book());
//重置操作栏
resetValue();
}else{ 
 //为0
JOptionPane.showMessageDialog(null,"图书修改失败u_u");
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("修改图书失败",e);
}finally{ 

//关闭数据库连接
DBTool.close(con);
}
}
/** * 图书删除事件 * @param evt */
private void deleteBookActionPerformed(ActionEvent evt) { 

//获取图书id
String id=idText.getText();
//判断是否id是否为空
if(id==null || "".equals(id)){ 
 //为空
JOptionPane.showMessageDialog(null, "请选中要删除的行！");  //给用户提示
return;
}
//定义数据库连接对象
Connection con=null;
try { 

//初始化数据库连接对象
con=DBTool.getConnetion(); 
//初始化图书数据访问对象
bookDao=new BookDao();
//执行图书访问对象的删除方法并返回删除的记录数
int res=bookDao.delete(con, Integer.parseInt(id));
if(res==1){ 
 //为1
JOptionPane.showMessageDialog(null, "图书删除成功n_n");
//刷新图书表格显示
fillBookTable(new Book());
//重置操作栏
resetValue();
}else{ 
 //为其他
JOptionPane.showMessageDialog(null, "图书删除失败u_u");
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("删除图书失败",e);
}finally{ 

//记得关闭数据库（******）
DBTool.close(con);
}
}
/** * 重置操作栏的所有值 */
private void resetValue(){ 

idText.setText("");
bookNameText.setText("");
authorText.setText("");
maleBtn.setSelected(true);
priceText.setText("");
fillBookTypeComboBox("modify");
bookDescText.setText("");
}
/** * 表格鼠标按下事件处理 * @param evt */
private void tableMousePressed(MouseEvent evt) { 

//获取图书表格选中的行的行号
int row=bookTable.getSelectedRow();
//获取选中行第一个数据并设置显示在操作栏的id框
idText.setText((Integer)bookTable.getValueAt(row,0)+"");
//获取选中行第二个数据并设置显示在操作栏的图书名称框
bookNameText.setText((String)bookTable.getValueAt(row, 1));
//获取选中行第三个数据并设置显示在操作栏的图书作者框
authorText.setText((String)bookTable.getValueAt(row, 2));
//获取选中行第四个数据并设置显示在操作栏的作者性别单选框
String sex=(String)bookTable.getValueAt(row, 3);
if("男".equals(sex)){ 

maleBtn.setSelected(true);
}else{ 

femaleBtn.setSelected(true);
}
//获取选中行第五个数据并设置显示在操作栏的图书价格框
priceText.setText((Float)bookTable.getValueAt(row, 4)+"");
//获取选中行第六个数据并设置显示在操作栏的图书类别下拉框中
String bookTypeName=(String)bookTable.getValueAt(row, 5);
int rows=bookTypeComboBox.getItemCount();  //获取下拉框总共的选项
for(int i=0;i<rows;i++){ 
 //遍历下拉框
BookType item=(BookType) bookTypeComboBox.getItemAt(i); //获取每一个选项并强转图书类别对象
if(item.getBookTypeName().equals(bookTypeName)){ 
  //将获取的图书类别和下拉框中的图书类别比较，若相同
bookTypeComboBox.setSelectedIndex(i); //则该下拉框选项被选中
}
}
//获取选中行第七个数据并设置显示在操作栏的图书描述框
bookDescText.setText((String)bookTable.getValueAt(row, 6));
}
/** * 图书查询事件处理 * @param evt 事件对象 */
private void searchActionPerformed(ActionEvent evt) { 

//获取查询的条件
String bookName=s_bookNameText.getText();  //图书名称
String author=s_authorText.getText();  //图书作者
String bookTypeName=s_bookTypecomboBox.getSelectedItem().toString(); //图书类别
//对图书类别"请选择..."换成""
if("请选择...".equals(bookTypeName)){ 

bookTypeName="";
}
//生成带有条件的图书对象
Book book=new Book();
book.setBookName(bookName);  //设置图书名称条件
book.setAuthor(author);   //设置图书作者条件
book.setBookTypeName(bookTypeName);  //设置图书类别条件
//调用table填充函数，根据查询结果重新填充表格
fillBookTable(book);  
}
/** * 初始化图书类别下拉框 * @param type 根据不同的参数填充不同的下拉框 */
private void fillBookTypeComboBox(String type){ 

//定义一个图书类别，用于存储查询的图书类别
BookType s_bookType=null;
//定义一个数据库连接
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//初始化图书类别访问数据对象
bookTypeDao=new BookTypeDao();
//查询图书类别，得到结果集
ResultSet rs=bookTypeDao.search(con, new BookType());
if("search".equals(type)){ 

BookType bookType=new BookType();
bookType.setBookTypeName("请选择...");
bookType.setId(-1);
s_bookTypecomboBox.addItem(bookType);
}
//遍历结果集
while(rs.next()){ 
 //如果有数据的话
//初始化接受查询的图书类别
s_bookType=new BookType();
//根据查询结果设置id
s_bookType.setId(rs.getInt("id"));
//根据查询结果设置图书类别名称
s_bookType.setBookTypeName(rs.getString("bookTypeName"));
if("search".equals(type)){ 

//将查询的图书类别添加到下拉框中
s_bookTypecomboBox.addItem(s_bookType);
}
if("modify".equals(type)){ 

//将查询的图书类别添加到表单操作下拉框中
bookTypeComboBox.addItem(s_bookType);
}
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("初始化下拉框失败",e);
}finally{ 

//关闭数据库连接
DBTool.close(con);
}
}
/** * 初始化表格，列出所有的书籍 * @param book */
private void fillBookTable(Book book){ 

//获取表格的模型
DefaultTableModel dtm=(DefaultTableModel) bookTable.getModel();
//填充表格时设置成0行（相当于归零处理）
dtm.setRowCount(0);
//定义数据库连接
Connection con=null;
try { 

//获取数据库连接
con=DBTool.getConnetion();
//初始化图书数据访问对象
bookDao=new BookDao();
//按条件查询图书（这里没有条件，查出所有书籍）
ResultSet rs=bookDao.search(con, book);
//遍历查询结果
while(rs.next()){ 

//定义一个集合，由于存储图书信息
Vector v=new Vector();
v.add(rs.getInt("id"));  //添加编号
v.add(rs.getString("bookName"));  //添加图书名称
v.add(rs.getString("author"));  //添加图书作者
v.add(rs.getString("sex"));     //添加作者性别
v.add(rs.getFloat("price"));    //添加图书价格
v.add(rs.getString("bookTypeName"));  //添加图书类别
v.add(rs.getString("bookDesc"));
//添加表格新行
dtm.addRow(v);
}
} catch (SQLException e) { 

//记录日志
e.printStackTrace();
throw new RuntimeException("初始化表格失败",e);
}finally{ 

//关闭数据库连接
DBTool.close(con);
}
}
}

⑥ BookAddInterFrame（图书添加界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import java.awt.Font;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.swing.ButtonGroup;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.border.LineBorder;
import cn.ac.azure.dao.BookDao;
import cn.ac.azure.dao.BookTypeDao;
import cn.ac.azure.model.Book;
import cn.ac.azure.model.BookType;
import cn.ac.azure.util.DBTool;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class BookAddInterFrame extends JInternalFrame { 

private JTextField bookNameText;
private JTextField authorText;
private final ButtonGroup buttonGroup = new ButtonGroup();
private JTextField priceText;
private JComboBox bookTypeComboBox;
private JRadioButton maleBtn;
private JRadioButton femaleBtn;
private JTextArea bookDescText;
private BookTypeDao bookTypeDao;
private BookDao bookDao;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

BookAddInterFrame frame = new BookAddInterFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public BookAddInterFrame() { 

setIconifiable(true);
setClosable(true);
// 改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setTitle("图书添加 ");
setBounds(100, 100, 699, 449);
JLabel label = new JLabel("图书名称：");
bookNameText = new JTextField();
bookNameText.setColumns(10);
JLabel label_1 = new JLabel("图书作者：");
authorText = new JTextField();
authorText.setColumns(10);
JLabel label_2 = new JLabel("作者性别：");
maleBtn = new JRadioButton("男");
buttonGroup.add(maleBtn);
femaleBtn = new JRadioButton("女");
buttonGroup.add(femaleBtn);
JLabel label_3 = new JLabel("图书价格：");
priceText = new JTextField();
priceText.setColumns(10);
JLabel label_4 = new JLabel("图书类别：");
// 图书类别下拉框
bookTypeComboBox = new JComboBox();
JLabel label_5 = new JLabel("图书描述：");
bookDescText = new JTextArea();
// 图书添加按钮
JButton addBtn = new JButton("添加");
addBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

// 图书添加按钮事件处理
bookAddActionPerformed(e);
}
});
addBtn.setIcon(new ImageIcon(BookAddInterFrame.class.getResource("/images/add.png")));
// 图书重置按钮
JButton resetBtn = new JButton("重置");
resetBtn.addActionListener(new ActionListener() { 

public void actionPerformed(ActionEvent e) { 

bookResetActionPerformed(e);
}
});
resetBtn.setIcon(new ImageIcon(BookAddInterFrame.class.getResource("/images/reset.png")));
GroupLayout groupLayout = new GroupLayout(getContentPane());
groupLayout
.setHorizontalGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup().addGap(38).addGroup(groupLayout
.createParallelGroup(
Alignment.LEADING)
.addGroup(
groupLayout.createSequentialGroup().addGap(6).addGroup(groupLayout
.createParallelGroup(Alignment.LEADING, false)
.addGroup(groupLayout.createSequentialGroup().addGroup(groupLayout
.createParallelGroup(Alignment.LEADING, false)
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label_4).addPreferredGap(
ComponentPlacement.RELATED)
.addComponent(bookTypeComboBox, 0,
GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookNameText, GroupLayout.PREFERRED_SIZE,
116, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label_2)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(maleBtn)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(femaleBtn)))
.addGap(44)
.addGroup(groupLayout
.createParallelGroup(Alignment.LEADING, false)
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label_3)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(priceText))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(label_1)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(authorText,
GroupLayout.PREFERRED_SIZE, 128,
GroupLayout.PREFERRED_SIZE))))
.addGroup(groupLayout.createSequentialGroup().addComponent(label_5)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(bookDescText)))
.addPreferredGap(ComponentPlacement.RELATED, 164, Short.MAX_VALUE))
.addGroup(groupLayout.createSequentialGroup().addGap(94).addComponent(addBtn).addGap(96)
.addComponent(resetBtn)))
.addContainerGap()));
groupLayout.setVerticalGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup().addGap(32)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label)
.addComponent(bookNameText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,
GroupLayout.PREFERRED_SIZE)
.addComponent(label_1).addComponent(authorText, GroupLayout.PREFERRED_SIZE,
GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(31)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label_2)
.addComponent(maleBtn).addComponent(femaleBtn).addComponent(label_3).addComponent(
priceText, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,
GroupLayout.PREFERRED_SIZE))
.addGap(37)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(label_4).addComponent(bookTypeComboBox, GroupLayout.PREFERRED_SIZE,
GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(30)
.addGroup(
groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(label_5).addComponent(
bookDescText, GroupLayout.PREFERRED_SIZE, 102, GroupLayout.PREFERRED_SIZE))
.addGap(38).addGroup(groupLayout.createParallelGroup(Alignment.BASELINE).addComponent(addBtn)
.addComponent(resetBtn))
.addContainerGap(45, Short.MAX_VALUE)));
getContentPane().setLayout(groupLayout);
// 设置文本域边框
bookDescText.setBorder(new LineBorder(new java.awt.Color(127, 157, 185), 1, false));
// 在构造函数中调用图书类别下拉框初始化方法
fillBookTypeName();
// 在构造函数中初始化性别。默认为男
maleBtn.setSelected(true);
}
/** * 重置按钮事件处理 * * @param evt * 重置按钮事件对象 */
private void bookResetActionPerformed(ActionEvent evt) { 

reset();
}
/** * 图书添加界面信息重置 */
private void reset() { 

bookNameText.setText("");
authorText.setText("");
maleBtn.setSelected(true);
priceText.setText("");
bookTypeComboBox.setSelectedIndex(0);
bookDescText.setText("");
}
/** * 图书添加按钮事件处理 * * @param evt * 添加事件对象 */
private void bookAddActionPerformed(ActionEvent evt) { 

String bookName = bookNameText.getText(); // 获取图书名称
if (bookName == null || "".equals(bookName.trim())) { 

JOptionPane.showMessageDialog(null, "图书名称不能为空！");
return;
}
String author = authorText.getText(); // 获取图书作者
String sex = null; // 获取图书作者性别
if (maleBtn.isSelected()) { 

sex = "男";
} else { 

sex = "女";
}
String prices = priceText.getText(); // 获取图书价格
if (prices == null || "".equals(prices.trim())) { 

JOptionPane.showMessageDialog(null, "图书价格不能为空！");
return;
}
float price = Float.parseFloat(prices);
BookType bookType = (BookType) bookTypeComboBox.getSelectedItem(); // 获取图书类别
int bookTypeId = bookType.getId(); // 获取图书类别id
System.out.println("ID="+bookTypeId);
String bookDesc = bookDescText.getText(); // 获取图书描述
// 根据获取的添加图书界面获取的信息创建图书对象
Book book = new Book(null, bookName, author, sex, price, bookTypeId, bookName, bookDesc);
System.out.println("实体类："+book);
// 定义数据库连接
Connection con = null;
try { 

// 获取数据库连接
con = DBTool.getConnetion();
// 初始化图书数据访问对象
bookDao = new BookDao();
// 调用添加方法，向数据库添加书籍
System.out.println("5555"+book);
int num = bookDao.add(con, book);
// 根据返回值判断图书是否添加成功
if (num > 0) { 

JOptionPane.showMessageDialog(null, "图书添加成功n_n");
// 添加成功之后重置界面
reset();
} else { 

JOptionPane.showMessageDialog(null, "图书添加成功u_u");
}
} catch (SQLException e) { 

// 记录日志
e.printStackTrace();
throw new RuntimeException("添加图书失败", e);
} finally { 

// 关闭数据库连接
DBTool.close(con);
}
}
// 填充图书类别名称
private void fillBookTypeName() { 

// 定义数据库连接对象
Connection con = null;
// 定义图书类别,用于查询和储存查询的书籍
BookType bookType = null;
try { 

// 获取数据库连接
con = DBTool.getConnetion();
// 初始化图书类别访问对象
bookTypeDao = new BookTypeDao();
// 查询t_bookType中含有的图书类别
ResultSet rs = bookTypeDao.search(con, bookType);
// 遍历查询结果
while (rs.next()) { 

// 出事化图书类别
bookType = new BookType();
// 设置图书的id
bookType.setId(rs.getInt("id"));
// 设置图书的名称
bookType.setBookTypeName(rs.getString("bookTypeName"));
// 将图书类别对象添加到下拉框中（这里添加对象，便于获得id）
bookTypeComboBox.addItem(bookType.getBookTypeName());
}
} catch (SQLException e) { 

// 记录日志
e.printStackTrace();
throw new RuntimeException("初始化列表失败", e);
} finally { 

// 关闭数据路连接
DBTool.close(con);
}
}
}

⑦ LibraryInterFrame（关于我们界面）

package cn.ac.azure.view;
import java.awt.EventQueue;
import javax.swing.JInternalFrame;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JLabel;
import javax.swing.UIManager;
import javax.swing.ImageIcon;
import java.awt.Font;
import java.awt.Color;
public class LibraryInterFrame extends JInternalFrame { 

private static final long serialVersionUID = 1L;
/** * Launch the application. */
public static void main(String[] args) { 

EventQueue.invokeLater(new Runnable() { 

public void run() { 

try { 

LibraryInterFrame frame = new LibraryInterFrame();
frame.setVisible(true);
} catch (Exception e) { 

e.printStackTrace();
}
}
});
}
/** * Create the frame. */
public LibraryInterFrame() { 

//改变系统默认字体
Font font = new Font("Dialog", Font.PLAIN, 12);
java.util.Enumeration<Object> keys = UIManager.getDefaults().keys();
while (keys.hasMoreElements()) { 

Object key = keys.nextElement();
Object value = UIManager.get(key);
if (value instanceof javax.swing.plaf.FontUIResource) { 

UIManager.put(key, font);
}
}
setClosable(true);
setIconifiable(true);
setBounds(450, 150, 503, 300);
JLabel label = new JLabel("");
label.setIcon(new ImageIcon(LibraryInterFrame.class.getResource("/images/library.png")));
JLabel label_1 = new JLabel("欢迎使用图书管理系统");
label_1.setForeground(Color.GREEN);
label_1.setBackground(Color.GREEN);
label_1.setFont(new Font("宋体", Font.PLAIN, 20));
GroupLayout groupLayout = new GroupLayout(getContentPane());
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addContainerGap(140, Short.MAX_VALUE)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(Alignment.TRAILING, groupLayout.createSequentialGroup()
.addComponent(label)
.addGap(175))
.addGroup(Alignment.TRAILING, groupLayout.createSequentialGroup()
.addComponent(label_1)
.addGap(137))))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(39)
.addComponent(label)
.addGap(28)
.addComponent(label_1)
.addContainerGap(51, Short.MAX_VALUE))
);
getContentPane().setLayout(groupLayout);
}
}

5、数据库【db_book】

/* Navicat Premium Data Transfer Source Server : 127.0.0.1 Source Server Type : MySQL Source Server Version : 50733 Source Host : localhost:3306 Source Schema : db_book Target Server Type : MySQL Target Server Version : 50733 File Encoding : 65001 Date: 19/07/2021 17:34:44 */
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for t_book
-- ----------------------------
DROP TABLE IF EXISTS `t_book`;
CREATE TABLE `t_book`  (
`id` int(50) NOT NULL AUTO_INCREMENT,
`bookName` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`author` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`sex` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`price` double(50, 2) NULL DEFAULT NULL,
`bookTypeId` int(50) NULL DEFAULT NULL,
`bookTypeName` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`bookDesc` varchar(5000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE,
INDEX `fk_booktype`(`bookTypeId`) USING BTREE,
CONSTRAINT `fk_booktype` FOREIGN KEY (`bookTypeId`) REFERENCES `t_booktype` (`id`) ON DELETE SET NULL ON UPDATE SET NULL
) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_book
-- ----------------------------
INSERT INTO `t_book` VALUES (1, '《人间失格》', '（日）太宰治', '男', 66.00, 1, '小说', '（日本小说家太宰治代表作，一个对村上春树影响至深的绝望凄美故事）');
INSERT INTO `t_book` VALUES (2, '《三体》', '刘慈欣', '女', 55.80, 1, '小说', '刘慈欣代表作，亚洲首部“雨果奖”获奖作品！\r\n《三体》第73届世界科幻雨果奖获奖作品，银河奖特别奖，《三体3》轨迹奖长篇科幻小说！2017年世界雨果奖提名作品。');
INSERT INTO `t_book` VALUES (3, '《人生海海》', '麦家', '男', 55.00, 2, '文化科学', '麦家重磅力作，莫言、董卿盛赞，连续两年高居各大畅销榜，发行量超180万册，罗一舟同款书）\r\n上校赢了所有的仗，却败给一个不足道的秘密。茅盾文学奖得主麦家暌违8年，打磨5年，挑战常人不敢落笔之处，解密人性的荒唐与高尚。人生海海，何必在意一时沉浮！');
INSERT INTO `t_book` VALUES (4, '《大国崛起》', '唐晋', '男', 50.40, 2, '历史', '以历史的眼光和全球的视野解读15世纪以来9个世界性大国崛起的历史，中国能否成为第十个崛起的大国？');
INSERT INTO `t_book` VALUES (5, '《中华人民共和国民法典》', '法律出版社', '男', 8.10, 2, '哲学、社会', '民法典是新中国首部以“法典”命名的法律，是新时代我国社会主义法治建设的重大成果，是为百姓生活量身定制的权利宝典。自2021年1月1日起施行。');
-- ----------------------------
-- Table structure for t_booktype
-- ----------------------------
DROP TABLE IF EXISTS `t_booktype`;
CREATE TABLE `t_booktype`  (
`id` int(50) NOT NULL AUTO_INCREMENT,
`bookTypeName` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`bookTypeDesc` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 25 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_booktype
-- ----------------------------
INSERT INTO `t_booktype` VALUES (1, 'A 马克思主义、列宁主义、毛泽东思想、邓小平理论', 'A 马克思主义、列宁主义、毛泽东思想、邓小平理论');
INSERT INTO `t_booktype` VALUES (2, 'B 哲学、宗教', 'B 哲学、宗教');
INSERT INTO `t_booktype` VALUES (3, 'C 社会科学总论', 'C 社会科学总论');
INSERT INTO `t_booktype` VALUES (4, 'D 政治、法律', 'D 政治、法律');
INSERT INTO `t_booktype` VALUES (5, 'F 经济', 'F 经济');
INSERT INTO `t_booktype` VALUES (6, 'G 文化、科学、教育、体育', 'G 文化、科学、教育、体育');
INSERT INTO `t_booktype` VALUES (7, 'H 语言、文字', 'H 语言、文字');
INSERT INTO `t_booktype` VALUES (8, 'I 文学', 'I 文学');
INSERT INTO `t_booktype` VALUES (9, 'J 艺术', 'J 艺术');
INSERT INTO `t_booktype` VALUES (10, 'K 历史、地理', 'K 历史、地理');
INSERT INTO `t_booktype` VALUES (11, 'N 自然科学总论', 'N 自然科学总论');
INSERT INTO `t_booktype` VALUES (12, 'O 数理科学和化学', 'O 数理科学和化学');
INSERT INTO `t_booktype` VALUES (13, 'Q 生物科学', 'Q 生物科学');
INSERT INTO `t_booktype` VALUES (14, 'R 医药、卫生 ', 'R 医药、卫生');
INSERT INTO `t_booktype` VALUES (15, 'S 农业科学', 'S 农业科学');
INSERT INTO `t_booktype` VALUES (16, 'T-TN 工业技术', 'T-TN 工业技术');
INSERT INTO `t_booktype` VALUES (17, 'TP 自动化技术、计算机技术', 'TP 自动化技术、计算机技术');
INSERT INTO `t_booktype` VALUES (18, 'TQ 化学工业', 'TQ 化学工业');
INSERT INTO `t_booktype` VALUES (19, 'TU 建筑科学', 'TU 建筑科学');
INSERT INTO `t_booktype` VALUES (20, 'TV 水利工程', 'TV 水利工程');
INSERT INTO `t_booktype` VALUES (21, 'U 交通运输', 'U 交通运输');
INSERT INTO `t_booktype` VALUES (22, 'V 航空、航天', 'V 航空、航天');
INSERT INTO `t_booktype` VALUES (23, 'X 环境科学、安全科学', 'X 环境科学、安全科学');
INSERT INTO `t_booktype` VALUES (24, 'Z 综合性图书', 'Z 综合性图书');
-- ----------------------------
-- Table structure for t_user
-- ----------------------------
DROP TABLE IF EXISTS `t_user`;
CREATE TABLE `t_user`  (
`id` int(50) NOT NULL AUTO_INCREMENT,
`username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`password` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_user
-- ----------------------------
INSERT INTO `t_user` VALUES (1, '11', '123456');
SET FOREIGN_KEY_CHECKS = 1;

三、项目地址：

CSDN赞助下载：

https://download.csdn.net/download/weixin_44893902/20367467

发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/133293.html原文链接：https://javaforall.cn

【正版授权，激活自己账号】： Jetbrains全家桶Ide使用，1年售后保障，每天仅需1毛

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基于Java swing+mysql+eclipse的【图书管理系统】

一、效果演示：

主要功能：

1、登录界面

2、主界面：

3、图书类别维护

4、图书类别添加

5、图书维护

6、图书添加

7、关于我们

二、核心代码：

1、Util包【存放数据库连接工具】

① DBTool（数据库连接工具类）

② db.properties（配置文件）

2、model包【存放实体类】

① Book（图书实体类）

② BookType（图书类别实体类）

③ User（用户实体类）

3、Dao包【数据库访问层】

① BookDao（图书dao类）

② BookTypeDao（图书类别dao类）

③ UserDao（用户数据访问对象）

4、View包【视图层】

① LoginFrame（登录界面）

② MainFrame（主界面）

③ BookTypeManageInterFrame（图书类别管理界面）

④ BookTypeAddInterFrame（图书类别添加界面）

⑤ BookManageInterFrame（图书管理界面）

⑥ BookAddInterFrame（图书添加界面）

⑦ LibraryInterFrame（关于我们界面）

5、数据库【db_book】

三、项目地址：

CSDN赞助下载：

发表回复

基于Java swing+mysql+eclipse的【图书管理系统】

一、效果演示：

主要功能：

1、登录界面

2、主界面：

3、图书类别维护

4、图书类别添加

5、图书维护

6、图书添加

7、关于我们

二、核心代码：

1、Util包 【存放数据库连接工具】

① DBTool（数据库连接工具类）

② db.properties（配置文件）

2、model包 【存放实体类】

① Book（图书实体类）

② BookType（图书类别实体类）

③ User（用户实体类）

3、Dao包 【数据库访问层】

① BookDao（图书dao类）

② BookTypeDao（图书类别dao类）

③ UserDao（用户数据访问对象）

4、View包 【视图层】

① LoginFrame（登录界面）

② MainFrame（主界面）

③ BookTypeManageInterFrame（图书类别管理界面）

④ BookTypeAddInterFrame（图书类别添加界面）

⑤ BookManageInterFrame（图书管理界面）

⑥ BookAddInterFrame（图书添加界面）

⑦ LibraryInterFrame（关于我们界面）

5、数据库【db_book】

三、项目地址：

CSDN赞助下载：

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发表回复

1、Util包【存放数据库连接工具】

2、model包【存放实体类】

3、Dao包【数据库访问层】

4、View包【视图层】