java图形化 图书管理系统 使用mysql数据库

此博客是本人一次Java实验课作业：

1、管理员操作：能够实现图书的增、删、改、查操作
2、普通注册用户操作：
(1)借阅图书（借阅成功后，对应图书在馆数量相应减1）
(2)归还图书（归还成功后，对应图书在馆数量加1）
(3)查阅自己借阅的图书
(4)续借图书（借阅图书以3个月为限，可以在期间内续借1个月）
(5)如果预借图书在馆数量为零，或者图书不存在，则无法借阅
(6)可以为所借阅的图书进行评论
3自行设计数据库表

此项目已经更新，修改了所有反馈的bug，增加了新功能，增加可玩性，调整了代码结构。欢迎访问另一篇博客

https://blog.csdn.net/m0_52889702/article/details/127230912

结果展示：

普通用户

管理员：

源码包地址：
https://gitee.com/wang-yongyan188/experimental-code.git

库表设计：

代码：引入jdbc-mysql的jar包 添加到库

创建实体类：目的是将数据库记录映射为Java对象

book：

public class Book {
    String bname;
    Integer bid;
    Integer allnum;
    Integer borrownum;
    String type;
    public Book() {
    }
    public Book(String bname, Integer bid, Integer allnum, Integer borrownum, String type) {
        this.bname = bname;
        this.bid = bid;
        this.allnum = allnum;
        this.borrownum = borrownum;
        this.type = type;
    }
    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getBname() {
        return bname;
    }

    public void setBname(String bname) {
        this.bname = bname;
    }

    public Integer getBid() {
        return bid;
    }

    public void setBid(Integer bid) {
        this.bid = bid;
    }

    public Integer getAllnum() {
        return allnum;
    }

    public void setAllnum(Integer allnum) {
        this.allnum = allnum;
    }

    public Integer getBorrownum() {
        return borrownum;
    }

    public void setBorrownum(Integer borrownum) {
        this.borrownum = borrownum;
    }

    @Override
    public String toString() {
        return "Book{" +
                "bname='" + bname + '\'' +
                ", bid=" + bid +
                ", allnum=" + allnum +
                ", borrownum=" + borrownum +
                '}';
    }
}

User:

public class User {
    Integer id;
    String passwd;
    String uname;
    Integer ismanger;

    public User(Integer id, String passwd, String uname, Integer ismanger) {
        this.id = id;
        this.passwd = passwd;
        this.uname = uname;
        this.ismanger = ismanger;
    }

    public User() {
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getPasswd() {
        return passwd;
    }

    public Integer getIsmanger() {
        return ismanger;
    }

    public void setIsmanger(Integer ismanger) {
        this.ismanger = ismanger;
    }

    public void setPasswd(String passwd) {
        this.passwd = passwd;
    }

    public String getUname() {
        return uname;
    }

    public void setUname(String uname) {
        this.uname = uname;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", passwd='" + passwd + '\'' +
                ", uname='" + uname + '\'' +
                ", ismanger=" + ismanger +
                '}';
    }
}

Rent：

public class Rent {
    Integer rid;
    String btime;
    String days;
    Integer uid;
    Integer bid;
    public Rent() {
    }

    public Rent(Integer rid, String btime, String days, Integer uid, Integer bid) {
        this.rid = rid;
        this.btime = btime;
        this.days = days;
        this.uid = uid;
        this.bid = bid;
    }

    public Integer getRid() {
        return rid;
    }

    public void setRid(Integer rid) {
        this.rid = rid;
    }

    public String getBtime() {
        return btime;
    }

    public void setBtime(String btime) {
        this.btime = btime;
    }

    public String getDays() {
        return days;
    }

    public void setDays(String days) {
        this.days = days;
    }

    public Integer getUid() {
        return uid;
    }

    public void setUid(Integer uid) {
        this.uid = uid;
    }

    public Integer getBid() {
        return bid;
    }

    public void setBid(Integer bid) {
        this.bid = bid;
    }

    @Override
    public String toString() {
        return "Rent{" +
                "rid=" + rid +
                ", btime='" + btime + '\'' +
                ", days='" + days + '\'' +
                ", uid=" + uid +
                ", bid=" + bid +
                '}';
    }
}

与数据库进行交互 封装成的工具类：

import code6.entity.Book;
import code6.entity.Rent;
import code6.entity.User;
import java.sql.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.Date;

public class SqlUtils {
    public static Connection getCon() throws ClassNotFoundException, SQLException {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/code6", "root", "1234");// 注意：这里要修改为自己的！！！
        return con;
    }
    public static int AutoId() {
        int orderId = UUID.randomUUID().toString().hashCode();
        orderId = orderId < 0 ? -orderId : orderId;
        return orderId;
    }

    public static User getUserById(int id) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        Statement statement =  con.createStatement();
        String sql = "SELECT * from `user` where uid=" + id;
        ResultSet resultSet = statement.executeQuery(sql);
        System.out.println(resultSet.next());
        User user = new User();
        user.setId(resultSet.getInt(1));
        user.setPasswd(resultSet.getString(2));
        user.setUname(resultSet.getString(3));
        user.setIsmanger(resultSet.getInt(4));
        statement.close();
        con.close();
        return user;
    }

    public static List<Book> getAll() throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        Statement statement =  con.createStatement();
        String sql = "SELECT * FROM book";
        ResultSet resultSet = statement.executeQuery(sql);
        ArrayList<Book> books = new ArrayList<>();
        Book book = new Book();
        while (resultSet.next()) {
            book.setBname(resultSet.getString(1));
            book.setBid(resultSet.getInt(2));
            book.setAllnum(resultSet.getInt(3));
            book.setBorrownum(resultSet.getInt(4));
            book.setType(resultSet.getString(5));
            books.add(book);
        }
      statement.close();
      con.close();
      return books;
    }

    public static int addBook(Book book) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql = "INSERT book VALUES(?,?,?,?,?);";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setString(1, book.getBname());
        prepareStatement.setInt(2, AutoId());
        prepareStatement.setInt(3, book.getAllnum());
        prepareStatement.setInt(4, book.getBorrownum());
        prepareStatement.setString(5, book.getType());
        int i = prepareStatement.executeUpdate();
        prepareStatement.close();
        con.close();
        return i;
    }
    public static int delBook(int bid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="DELETE from book WHERE bid=?";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setInt(1,bid);
        return prepareStatement.executeUpdate();
    }
    public static int upBook(Book book) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="UPDATE book SET bname=?,allnum=?,borrownum=?,type=? WHERE bid=?";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setString(1,book.getBname());
        prepareStatement.setInt(2,book.getAllnum());
        prepareStatement.setInt(3,book.getBorrownum());
        prepareStatement.setString(4,book.getType());
        prepareStatement.setInt(5,book.getBid());
        int i = prepareStatement.executeUpdate();
        prepareStatement.close();
        con.close();
        return i;
    }

    public static int addRent(int uid,int bid,int days,int month) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        con.setAutoCommit(false);
        String sql="INSERT INTO rent VALUES(?,?,?,?,?)";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setInt(1,AutoId());
        Date date = new Date();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String sbegin= format.format(date);
        prepareStatement.setString(2,sbegin);
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.add(Calendar.MONTH,month);
        Date temptime = cal.getTime();
        SimpleDateFormat format2 = new SimpleDateFormat("yyyy-MM-dd");
        String endday = format2.format(temptime.getTime() + days * 24 * 60 * 60 * 1000);
        prepareStatement.setString(3,endday);
        prepareStatement.setInt(4,uid);
        prepareStatement.setInt(5,bid);
        String sql2="UPDATE book set borrownum=borrownum+1 where bid="+bid;
        int i1=0;
        int i=0;
            Statement statement = con.createStatement();
            try{
                i1= statement.executeUpdate(sql2);
                i= prepareStatement.executeUpdate();
                con.commit();
            }
            catch (Exception e){
             con.rollback();
            }
            finally {
                statement.close();
                prepareStatement.close();
                con.close();
            }

        return (i==1&&i==1)?1:0;
    }
    public static Boolean isAddRend(int bid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="SELECT allnum,borrownum from book WHERE bid="+bid;
        Statement statement = con.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        resultSet.next();
        int all=resultSet.getInt(1);
        int rent=resultSet.getInt(2);
        statement.close();
        con.close();
       	return all>rent?true:false;
    }
    public static List<Rent> getAllRentByUid(int uid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="SELECT * from rent where uid="+uid;
        Statement statement = con.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        ArrayList<Rent> rents = new ArrayList<>(5);
        while (resultSet.next()){
            Rent rent = new Rent();
            rent.setRid(resultSet.getInt(1));
            rent.setBtime(resultSet.getString(2));
            rent.setDays(resultSet.getString(3));
            rent.setUid(resultSet.getInt(4));
            rent.setBid(resultSet.getInt(5));
            rents.add(rent);
        }
        return rents;
    }
    public static Book getBookByBid(int bid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="SELECT * from book where bid="+bid;
        Statement statement = con.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        Book book = new Book();
        while (resultSet.next()){
            book.setBname(resultSet.getString(1));
            book.setBid(resultSet.getInt(2));
            book.setAllnum(resultSet.getInt(3));
            book.setBorrownum(resultSet.getInt(4));
            book.setType(resultSet.getString(5));
        }
    return book;
    }
    public static List<Map> getCentosByUid(int uid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        Statement statement = con.createStatement();
        String sql="SELECT bname,b.bid,type,btime,days from book b ,rent r WHERE b.bid=r.bid and r.uid="+uid;
        ResultSet resultSet = statement.executeQuery(sql);
        ArrayList<Map> maps = new ArrayList<>();
        while (resultSet.next()){
            HashMap<String, String> map = new HashMap<>();
            map.put("bname",resultSet.getString(1));
            map.put("bid", String.valueOf(resultSet.getInt(2)));
            map.put("type",resultSet.getString(3));
            map.put("btime",resultSet.getString(4));
            map.put("days",resultSet.getString(5));
            maps.add(map);
        }
        return maps;
    }
    public static Boolean IsRent(int uid,int bid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="SELECT bid from rent WHERE uid="+uid;
        Statement statement = con.createStatement();
        ArrayList<Object> list = new ArrayList<>();
        ResultSet resultSet = statement.executeQuery(sql);
        while (resultSet.next()){
            list.add(resultSet.getInt(1));
        }
        System.out.println(list);
        for (int i=0;i<list.size();i++){
            if(list.get(i).equals(bid)){
                return true;
            }
        }
        return false;
    }
    public static Boolean decRend(int uid,int bid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        con.setAutoCommit(false);
        String sql="DELETE from rent WHERE uid=? and bid=?";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setInt(1,uid);
        prepareStatement.setInt(2,bid);
        int i =0;
        String sql2="UPDATE book set borrownum=borrownum-1 where bid="+bid;
        Statement statement = con.createStatement();
        int i1 =0;
        try {  i=prepareStatement.executeUpdate();
             i1=statement.executeUpdate(sql2);
             con.commit();
        }
        catch (Exception e){
            System.out.println("失败");
            con.rollback();
        }
        return (i1>0 &&i>0)? true:false;
    }
    public static int contineDays(int bid,int uid,int days) throws SQLException, ClassNotFoundException, ParseException {
        Connection con = getCon();
        String sql1="SELECT days from rent WHERE uid="+uid+" and bid="+bid;
        Statement statement = con.createStatement();
        ResultSet resultSet = statement.executeQuery(sql1);
        resultSet.next();
        String  nowtime= resultSet.getString(1);
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        Date parse = format.parse(nowtime);
        Calendar instance = Calendar.getInstance();
        instance.setTime(parse);
        instance.add(Calendar.DAY_OF_MONTH,days);
        String afterdays = format.format(instance.getTime());
        String sql2="UPDATE rent SET days=? WHERE uid=? and bid=?";
        PreparedStatement prepareStatement = con.prepareStatement(sql2);
        prepareStatement.setString(1,afterdays);
        prepareStatement.setInt(2,uid);
        prepareStatement.setInt(3,bid);
        int i = prepareStatement.executeUpdate();
        return i;
    }

    public static int addCom(String content,int bid,int uid) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="INSERT `comment`VALUES(?,?,?,?)";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setInt(1,AutoId());
        prepareStatement.setString(2,content);
        prepareStatement.setInt(3,uid);
        prepareStatement.setInt(4,bid);
        int i = prepareStatement.executeUpdate();
        prepareStatement.close();
        con.close();
        return i;
    }
    public static List<String> getComById(int bid) throws SQLException, ClassNotFoundException {
        ArrayList<String> list = new ArrayList<>();
        Connection con = getCon();
        Statement statement = con.createStatement();
        String sql="SELECT * from `comment` WHERE bid="+bid;
        ResultSet resultSet = statement.executeQuery(sql);
        while (resultSet.next()){
            String content = resultSet.getString(2);
            int uid = resultSet.getInt(3);
            String str=content+" By [user:"+uid+"]";
            list.add(str);
        }
        statement.close();
        con.close();
        return list;
    }
    public static int RegisterUser(String uname,String passwd) throws SQLException, ClassNotFoundException {
        Connection con = getCon();
        String sql="insert user values(?,?,?,?)";
        PreparedStatement prepareStatement = con.prepareStatement(sql);
        prepareStatement.setString(1,passwd);
        prepareStatement.setString(2,uname);
        int i = prepareStatement.executeUpdate();
        return i;
    }
}

登录页面类：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Login {
    public void loginUi(){
        JFrame frame = new JFrame();
        //设置窗体对象的属性值
        frame.setTitle("Login");//设置窗体标题
        frame.setSize(400, 250);//设置窗体大小，只对顶层容器生效
        frame.setDefaultCloseOperation(3);//设置窗体关闭操作，3表示关闭窗体退出程序
        frame.setLocationRelativeTo(null);//设置窗体相对于另一组间的居中位置，参数null表示窗体相对于屏幕的中央位置
        frame.setResizable(false);//禁止调整窗体大小
        frame.setFont(new Font("宋体",Font.PLAIN,14));//设置字体，显示格式正常，大小

        FlowLayout fl = new FlowLayout(FlowLayout.CENTER,10,10);
        //实例化流式布局类的对象
        frame.setLayout(fl);

        //实例化JLabel标签对象，该对象显示“账号”
        JLabel labname = new JLabel("账号id：");
        labname.setFont(new Font("宋体",Font.PLAIN,14));
        frame.add(labname);

        JTextField text_name = new JTextField();
        Dimension dim1 = new Dimension(300,30);
        text_name.setPreferredSize(dim1);//设置除顶级容器组件以外其他组件的大小
        frame.add(text_name);

        JLabel labpass = new JLabel("密码：");
        labpass.setFont(new Font("宋体",Font.PLAIN,14));
        frame.add(labpass);
        JPasswordField text_password = new JPasswordField();
        //设置大小
        text_password.setPreferredSize(dim1);
        frame.add(text_password);
        JButton button1 = new JButton();
        JButton button2 = new JButton("注册");
        Dimension dim2 = new Dimension(100,30);
        button1.setText("登录");
        button1.setFont(new Font("宋体",Font.PLAIN,14));
        button2.setFont(new Font("宋体",Font.PLAIN,14));
        button1.setSize(dim2);
        button2.setSize(dim2);
        button2.addActionListener(
                new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent e) {
                        new Register().reg();
                    }
                }
        );

        frame.add(button1);
        frame.add(button2);
        frame.setVisible(true);
        CListener listener = new CListener(frame, text_name, text_password);
        button1.addActionListener(listener);

    }
}

效果：

登录按钮的监听类:

import code6.entity.User;
import code6.menu.Common;
import code6.menu.MangerMenu;
import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class CListener implements ActionListener {
    JFrame login;
    JTextField text_name;
    JPasswordField text_passwd;
    public CListener() {
    }
    public CListener(JFrame login, JTextField text_name, JPasswordField text_passwd) {
        this.login = login;
        this.text_name = text_name;
        this.text_passwd = text_passwd;
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        Dimension dim3 = new Dimension(300,30);

        JFrame login2 = new JFrame();
        login2.setSize(400,200);
        login2.setDefaultCloseOperation(3);
        login2.setLocationRelativeTo(null);
        login2.setFont(new Font("宋体",Font.PLAIN,14));  //宋体，正常风格，14号字体
        JPanel jp1 = new JPanel();
        JPanel jp2 = new JPanel();
      User user = new User();
        try {
            user= SqlUtils.getUserById(Integer.parseInt(text_name.getText()));
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        } catch (ClassNotFoundException classNotFoundException) {
            classNotFoundException.printStackTrace();
        }
        String passwd=user.getPasswd();
        if(text_passwd.getText().equals(passwd)) {
            JLabel message = new JLabel("登陆成功！");
            message.setFont(new Font("宋体", Font.PLAIN, 14));  //宋体，正常风格，14号字体
            message.setPreferredSize(dim3);
            jp1.add(message);
            login2.add(jp1, BorderLayout.CENTER);
            login2.setResizable(false);
            login2.setVisible(true);
            login.dispose();
            if(user.getIsmanger()==1){
                new MangerMenu().ui(user.getId());
            }else
            {
                new Common().ui(user.getId());
            }

        }
        else {
            JLabel message = new JLabel("账号或密码错误");
            message.setFont(new Font("宋体",Font.PLAIN,14));
            message.setPreferredSize(dim3);
            jp1.add(message);
            login2.add(jp1,BorderLayout.CENTER);
            JButton close = new JButton("确定");
            close.setFont(new Font("宋体",Font.PLAIN,14));
            close.setSize(dim3);
            jp2.add(close);
            login2.add(jp2,BorderLayout.SOUTH);
            close.addActionListener(new ActionListener()
            {
                public void actionPerformed(ActionEvent e)
                {
                    login2.dispose();
                }
            });
            login2.setResizable(false);
            login2.setVisible(true);
            login.dispose();
        }
    }
}

注册按钮监听类:

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class Register {

    public static void reg(){
        JFrame f = new JFrame("注册普通用户");
        JPanel jPanel = new JPanel();

        JTextField tname = new JTextField();
        JTextField tpasswd = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        JLabel lname= new JLabel("用户名");
        JLabel lpassd= new JLabel("密码");
        lname.setFont(new Font("宋体",Font.PLAIN,14));
        lpassd.setFont(new Font("宋体",Font.PLAIN,14));
        tname.setPreferredSize(dimension);
        tpasswd.setPreferredSize(dimension);
        JButton jbutton = new JButton("注册");
        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String bname=null;
                String passwd=null;

                bname=tname.getText();
                passwd= tpasswd.getText();
            int i=0;
                try {
                   i=SqlUtils.RegisterUser(bname,passwd);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }


                if(i>0){
                    System.out.println("注册成功");
                }else
                {
                    System.out.println("注册失败");
                }
            }
        });
        jPanel.add(lname);
        jPanel.add(tname);
        jPanel.add(lpassd);
        jPanel.add(tpasswd);
        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(700,300);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
}

登录成功后 普通用户的菜单界面类：

import code6.menu.com.BorrowBook;
import code6.menu.com.ContinueBook;
import code6.menu.com.PersonalCenter;
import code6.menu.com.SendBook;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class Common {
    public void ui(int uid) {
        JFrame jframe = new JFrame("用户主页");
        jframe.setBounds(300, 180, 650, 500);
        JPanel jPanel = new JPanel();
        JMenuBar jmenuBar=new JMenuBar();
        JMenu sf = new JMenu("借阅图书");
        JMenu af = new JMenu("归还图书");
        JMenu df = new JMenu("个人中心");
        JMenu uf = new JMenu("续借图书");
        JMenuItem d1 = new JMenuItem("借阅");
        JMenuItem d2 = new JMenuItem("归还");
        JMenuItem d3 = new JMenuItem("租借记录");
        JMenuItem d4 = new JMenuItem("续借");
        d1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    new BorrowBook().add(uid);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }
            }
        });
        d2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new SendBook().send();

            }
        });
        d3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    new PersonalCenter().center(uid);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }

            }
        });
        d4.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new ContinueBook().con(uid);
            }
        });
        af.add(d2);
        df.add(d3);
        sf.add(d1);
        uf.add(d4);
        jmenuBar.add(sf);
        jmenuBar.add(af);
        jmenuBar.add(df);
        jmenuBar.add(uf);
        jPanel.add(jmenuBar);
        jframe.add(jPanel);
        jframe.setVisible(true);
        jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new Common().ui(1);
    }

}

借书功能类：

import code6.menu.manger.SelectBook;
import code6.utils.SqlUtils;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;
public class BorrowBook {
    public void add(int uid) throws SQLException, ClassNotFoundException {
        JFrame f = new JFrame("借阅书籍");
        JPanel jPanel = new JPanel();
        JTextField tid = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        new SelectBook().comTable();


        JLabel lid= new JLabel("图书id");
        JLabel lgroup= new JLabel("月份");
        lid.setFont(new Font("宋体",Font.PLAIN,14));
        lgroup.setFont(new Font("宋体",Font.PLAIN,14));
        tid.setPreferredSize(dimension);
        JLabel lday= new JLabel("天数(0< and <30)");
        JComboBox<String> box2 = new JComboBox<>();
        for (int i=0;i<30;i++){
            box2.addItem(i+"天");
        }

        JComboBox<String> box1 = new JComboBox<>();
        box1.addItem("0个月");
        box1.addItem("1个月");
        box1.addItem("2个月");
        JButton jbutton = new JButton("添加");
       jbutton.addActionListener(new ActionListener() {
           @Override
           public void actionPerformed(ActionEvent e) {
              int id= Integer.parseInt(tid.getText());
               System.out.println(id);
               int months= Integer.parseInt(box1.getSelectedItem().toString().substring(0,1));
               int days= Integer.parseInt(box2.getSelectedItem().toString().substring(0,1));
               int i=0;
               try {
                   if(SqlUtils.IsRent(uid,id))
                   {
                       if(SqlUtils.isAddRend(id)){
                           i=SqlUtils.addRent(uid,id,days,months);
                       }
                   }
               } catch (SQLException throwables) {
                   throwables.printStackTrace();
               } catch (ClassNotFoundException classNotFoundException) {
                   classNotFoundException.printStackTrace();
               }
               String res=  i>0?"借阅成功":"借阅失败";
               System.out.println(res);
           }
       });
        jPanel.add(lid);
        jPanel.add(tid);
        jPanel.add(lgroup);
        jPanel.add(box1);
        jPanel.add(lday);
        jPanel.add(box2);
        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(700,300);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
    }

评论书籍类：

!

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;
import java.text.ParseException;
import java.util.List;

public class CommentBook {
    public void comment(int uid){
        JFrame f = new JFrame("图书评价");
        JPanel jPanel = new JPanel();
        JLabel lid= new JLabel("图书的id");
        lid.setFont(new Font("宋体",Font.PLAIN,14));
        JTextField tid = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        tid.setPreferredSize(dimension);
        JLabel lcon = new JLabel("评价内容");
        JTextArea tcon = new JTextArea(5,20);
        JTextArea tta = new JTextArea(10, 20);
        tta.setFont(new Font("宋体",Font.PLAIN,14));
        tta.setVisible(false);
//        JTextField tcon = new JTextField();
        JButton jbutton = new JButton("发表自己观点");
        tcon.setFont(new Font("宋体",Font.PLAIN,14));
//        lcon.setFont(new Font("宋体",Font.PLAIN,14));
        tcon.setPreferredSize(dimension);


        JButton jbutton2 = new JButton("查看ta评价");

        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int i = 0;
                int bid= Integer.parseInt(tid.getText());
                try {
                    if(SqlUtils.IsRent(uid,bid)){
                        i=SqlUtils.addCom(tcon.getText(),bid,uid);
                    }
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }
                if(i>0){
                    System.out.println("评价成功");
                }
                else {
                    System.out.println("评价失败");
                }
            }
        });


        jbutton2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int bid= Integer.parseInt(tid.getText());
                try {
                    System.out.println(SqlUtils.IsRent(uid, bid));

                        List<String> com = SqlUtils.getComById(bid);
                        tta.setText("");
                        for (int i=0;i<com.size();i++){
                            String con=com.get(i);
                            tta.append(con+"\n");
                        }
                        if(com.size()==0){
                            tta.setText("当前书籍暂无评价");
                        }


                        tta.setVisible(true);



                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }


            }
        });
        jPanel.add(lid);
        jPanel.add(tid);
        jPanel.add(lcon);
        jPanel.add(tcon);
        jPanel.add(jbutton2);
        jPanel.add(jbutton);
        jPanel.add(tta);
        f.add(jPanel);
        f.setSize(600,200);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }

    public static void main(String[] args) {
        new CommentBook().comment(1);
    }
}

续借功能类:

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;
import java.text.ParseException;

public class ContinueBook {
    public void con(int uid){
        JFrame f = new JFrame("续借图书");
        JPanel jPanel = new JPanel();
        JLabel lid= new JLabel("图书id");
        lid.setFont(new Font("宋体",Font.PLAIN,14));
        JTextField tid = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        tid.setPreferredSize(dimension);
        JButton jbutton = new JButton("续借");
        JComboBox<String> box1 = new JComboBox<>();
        for (int i=1;i<=30;i++){
            box1.addItem(i+"天");
        }

        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int i = 0;
                int days= Integer.parseInt(box1.getSelectedItem().toString().substring(0,1));
                int bid= Integer.parseInt(tid.getText());
                try {
                    i = SqlUtils.contineDays(bid, uid, days);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                } catch (ParseException parseException) {
                    parseException.printStackTrace();
                }

                if(i>0){
                    System.out.println("续借成功");
                }
                else {
                    System.out.println("续借失败");
                }
            }
        });
        jPanel.add(lid);
        jPanel.add(tid);
        jPanel.add(box1);
        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(600,200);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
    }

个人中心 负责查看自己所借书的功能类：

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class PersonalCenter {
    public void center(int uid) throws SQLException, ClassNotFoundException {
            JFrame f = new JFrame("个人中心");
            f.setSize(800, 300);
            f.setLocation(200, 200);
            f.setLayout(new BorderLayout());
            String[] th = new String[]{ "书籍id", "书籍名称","类型", "借入时间","归还日期"};
        List<Map> centosByUid = SqlUtils.getCentosByUid(uid);
        HashMap<String, String> map = new HashMap<>();
        String[][] td=new String[centosByUid.size()][];
            for (int i=0;i<td.length;i++) {
                map= (HashMap<String, String>) centosByUid.get(i);
                td[i] = new String[5];
                td[i][0] = map.get("bname");
                td[i][1] = map.get("bid");
                td[i][2] = map.get("type");
                td[i][3] = map.get("btime");
                td[i][4] = map.get("days");
            }
            JTable t = new JTable(td, th);
            JScrollPane sp = new JScrollPane(t);
            f.add(sp, BorderLayout.CENTER);
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            f.setVisible(true);
    }
    public static void main(String[] args) {
        try {
            new PersonalCenter().center(1);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

还书功能类:

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class SendBook {
    public void send(){
        JFrame f = new JFrame("归还图书");
        JPanel jPanel = new JPanel();
        JLabel lid= new JLabel("图书id");
        lid.setFont(new Font("宋体",Font.PLAIN,14));
        JTextField tid = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        tid.setPreferredSize(dimension);
        JButton jbutton = new JButton("归还");
        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int i = 0;
                try {
                    i= SqlUtils.delBook(Integer.parseInt(tid.getText()));
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }
                if(i>0){
                    System.out.println("归还成功");
                }
                else {
                    System.out.println("归还失败");
                }
            }
        });
        jPanel.add(lid);
        jPanel.add(tid);

        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(600,200);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
}

管理员页面：

import code6.menu.manger.AddBook;
import code6.menu.manger.DelBook;
import code6.menu.manger.SelectBook;
import code6.menu.manger.UpdateBook;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class MangerMenu {
    public void ui(int uid) {
        JFrame jframe = new JFrame("管理员个人主页");
        jframe.setBounds(300, 180, 650, 500);
        JPanel jPanel = new JPanel();
        JMenuBar jmenuBar=new JMenuBar();
        JMenu sf = new JMenu("查看所有书籍");
        JMenu af = new JMenu("添加书籍");
        JMenu df = new JMenu("删除书籍");
        JMenu uf = new JMenu("修改书籍");
        JMenuItem d1 = new JMenuItem("查询");
        JMenuItem d2 = new JMenuItem("添加");
        JMenuItem d3 = new JMenuItem("删除");
        JMenuItem d4 = new JMenuItem("修改");
        d1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {

                try {
                    new SelectBook().comTable();
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }

            }
        });
        d2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new AddBook().add();

            }
        });
        d3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new DelBook().del();

            }
        });
        d4.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new UpdateBook().update();
            }
        });
        af.add(d2);
        df.add(d3);
        sf.add(d1);
        uf.add(d4);

        jmenuBar.add(sf);
        jmenuBar.add(af);
        jmenuBar.add(df);
        jmenuBar.add(uf);
        jPanel.add(jmenuBar);
        jframe.add(jPanel);
        jframe.setVisible(true);
        jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

添加书籍功能类：

import code6.entity.Book;
import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class AddBook {
    public static void add(){
        JFrame f = new JFrame("添加书籍");
        JPanel jPanel = new JPanel();
        JTextField textfield = new JTextField();
        JTextField tnum = new JTextField();
        JTextField tbrrow = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        JLabel lname= new JLabel("书籍名称");
        JLabel lnum= new JLabel("总数量");
        JLabel lbrrow= new JLabel("借出数量");
        JLabel lgroup= new JLabel("书籍类型");
        lname.setFont(new Font("宋体",Font.PLAIN,14));
        lnum.setFont(new Font("宋体",Font.PLAIN,14));
        lgroup.setFont(new Font("宋体",Font.PLAIN,14));
        lbrrow.setFont(new Font("宋体",Font.PLAIN,14));
        tnum.setPreferredSize(dimension);
        tbrrow.setPreferredSize(dimension);
        textfield.setPreferredSize(dimension);
        JButton jbutton = new JButton("添加");
        JComboBox<String> box = new JComboBox<>();
        box.addItem("小说");
        box.addItem("教材");
        box.addItem("科普");
        box.addItem("其他");
        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String bname=null;
                int allnum=0;
                int brrow=0;
                String type=null;
                bname=textfield.getText();
                allnum= Integer.parseInt(tnum.getText());
                brrow= Integer.parseInt(tbrrow.getText());
                type=box.getSelectedItem().toString();
                Book book = new Book(bname,null,allnum,brrow,type);
                int i=0;
                try {
                   i=SqlUtils.addBook(book);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }
                if(i>0){
                    System.out.println("添加成功");
                }else
                {
                    System.out.println("添加失败");
                }
            }
        });

        jPanel.add(lname);
        jPanel.add(textfield);
        jPanel.add(lnum);
        jPanel.add(tnum);
        jPanel.add(lbrrow);
        jPanel.add(tbrrow);
        jPanel.add(lgroup);
        jPanel.add(box);
        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(700,300);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }

}

点击查看所有书籍：

import code6.entity.Book;
import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.sql.SQLException;
import java.util.List;
public class SelectBook {
    public static void comTable() throws SQLException, ClassNotFoundException {
        JFrame f = new JFrame("图书管理");
        f.setSize(400, 300);
        f.setLocation(200, 200);
        f.setLayout(new BorderLayout());
        String[] th = new String[]{ "书籍id", "书籍名称","类型", "总数","借出数量"};
        List<Book> all = SqlUtils.getAll();
        String[][] td=new String[all.size()][];
        Book book = new Book();
        for (int i=0;i<td.length;i++){
            td[i]=new String[5];
            book=all.get(i);
            td[i][0]= String.valueOf(book.getBid());
            td[i][1]=book.getBname();
            td[i][2]=book.getType();
            td[i][3]= String.valueOf(book.getAllnum());
            td[i][4]= String.valueOf(book.getBorrownum());
        }
        JTable t = new JTable(td, th);
        JScrollPane sp = new JScrollPane(t);
        f.add(sp, BorderLayout.CENTER);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
}

删除书籍

import code6.utils.SqlUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;

public class DelBook {
    public void del(){
            JFrame f = new JFrame("删除图书");
            JPanel jPanel = new JPanel();
            JLabel lid= new JLabel("图书id");
            lid.setFont(new Font("宋体",Font.PLAIN,14));
            JTextField tid = new JTextField();
            Dimension dimension = new Dimension(100, 30);
            tid.setPreferredSize(dimension);
            JButton jbutton = new JButton("删除");
            jbutton.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    int i = 0;
                    try {
                        i= SqlUtils.delBook(Integer.parseInt(tid.getText()));
                    } catch (SQLException throwables) {
                        throwables.printStackTrace();
                    } catch (ClassNotFoundException classNotFoundException) {
                        classNotFoundException.printStackTrace();
                    }
                    if(i>0){
                        System.out.println("删除成功");
                    }
                    else {
                        System.out.println("删除失败");
                    }
                }
            });
            jPanel.add(lid);
            jPanel.add(tid);

            jPanel.add(jbutton);
            f.add(jPanel);
            f.setSize(600,200);
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            f.setVisible(true);
        }
    }

更新书籍：

import code6.entity.Book;
import code6.utils.SqlUtils;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.SQLException;
public class UpdateBook {
    public void update(){
        JFrame f = new JFrame("修改书籍");
        JPanel jPanel = new JPanel();
        JTextField textfield = new JTextField();
        JTextField tnum = new JTextField();
        JTextField tid = new JTextField();
        JTextField tbrrow = new JTextField();
        Dimension dimension = new Dimension(100, 30);
        JLabel lbid = new JLabel("要修改的图书id");
        JLabel lname= new JLabel("书籍名称");
        JLabel lnum= new JLabel("总数量");
        JLabel lbrrow= new JLabel("借出数量");
        JLabel lgroup= new JLabel("书籍类型");
        lbid.setFont(new Font("宋体",Font.PLAIN,14));
        lname.setFont(new Font("宋体",Font.PLAIN,14));
        lnum.setFont(new Font("宋体",Font.PLAIN,14));
        lgroup.setFont(new Font("宋体",Font.PLAIN,14));
        lbrrow.setFont(new Font("宋体",Font.PLAIN,14));
        tnum.setPreferredSize(dimension);
        tbrrow.setPreferredSize(dimension);
        textfield.setPreferredSize(dimension);
        tid.setPreferredSize(dimension);
        JButton jbutton = new JButton("修改");
        JComboBox<String> box = new JComboBox<>();
        box.addItem("小说");
        box.addItem("教材");
        box.addItem("科普");
        box.addItem("其他");
        jbutton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int bid=0;
                String bname=null;
                int allnum=0;
                int brrow=0;
                String type=null;
                bid= Integer.parseInt(tid.getText());
                bname=textfield.getText();
                allnum= Integer.parseInt(tnum.getText());
                brrow= Integer.parseInt(tbrrow.getText());
                type=box.getSelectedItem().toString();
                Book book = new Book();
                book.setBid(bid);
                book.setBorrownum(brrow);
                book.setType(type);
                book.setBname(bname);
                book.setAllnum(allnum);
                System.out.println(book);
                int i=0;
                try {
                    SqlUtils.upBook(book);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                } catch (ClassNotFoundException classNotFoundException) {
                    classNotFoundException.printStackTrace();
                }
                if(i>0){
                    System.out.println("修改成功");
                }else
                {
                    System.out.println("修改失败");
                }
            }
        });
        jPanel.add(lbid);
        jPanel.add(tid);
        jPanel.add(lname);
        jPanel.add(textfield);
        jPanel.add(lnum);
        jPanel.add(tnum);
        jPanel.add(lbrrow);
        jPanel.add(tbrrow);
        jPanel.add(lgroup);
        jPanel.add(box);
        jPanel.add(jbutton);
        f.add(jPanel);
        f.setSize(700,300);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
    public static void main(String[] args) {
        new UpdateBook().update();
    }
}

到此完成