JDBC-图书管理系统
Posted 霏ིྀ宇ིྀ
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文章目录
JDBC-图书管理系统
数据库设计
BOOK
CREATE TABLE `book` (
`book_id` int(11) NOT NULL AUTO_INCREMENT,
`book_name` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`book_kind` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`book_author` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`book_print` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`book_state` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY USING BTREE (`book_id`)
) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
Boorrow
CREATE TABLE `borrow` (
`borrow_id` int(11) NOT NULL AUTO_INCREMENT,
`borrow_bookid` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`borrow_readerid` int(11) NOT NULL,
`borrow_gettime` date NOT NULL,
`borrow_returntime` date NOT NULL,
`ya_money` int(11) NULL DEFAULT NULL,
PRIMARY KEY USING BTREE (`borrow_id`)
) ENGINE = InnoDB AUTO_INCREMENT = 12 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
reader
DROP TABLE IF EXISTS `reader`;
CREATE TABLE `reader` (
`reader_id` int(11) NOT NULL AUTO_INCREMENT,
`reader_book_id` int(11) NOT NULL,
`reader_name` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`reader_sex` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`reader_tel` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`reader_department` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`reader_class` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY USING BTREE (`reader_id`)
) ENGINE = InnoDB AUTO_INCREMENT = 7 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
user
CREATE TABLE `user` (
`user_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`user_keyword` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`user_role` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY USING BTREE (`user_id`)
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
数据库系统登录界面
管理员界面
1:用户登录
UserDao
public List<UserInfo> login(String username, String pwd)
//创建一个集合，用来存放从数据库查询到的数据封装的对象
ArrayList<UserInfo> list = new ArrayList<>();
String sql = "select * from user where user_id=? and user_keyword=?";
try
ps=con.prepareStatement(sql);
//给？赋值
ps.setString(1, username);
ps.setString(2, pwd);
//执行sql 得到一个resultSet
rs = ps.executeQuery();
//处理rs
while (rs.next())
UserInfo user = new UserInfo(); //创建一个user对象用来接收数据库查的信息
String user_id = rs.getString("user_id");
String user_keyword = rs.getString("user_keyword");
String user_role = rs.getString("user_role");
user.setUser_id(user_id);
user.setUser_ketword(user_keyword);
user.setUser_role(user_role); //截止到这里，我们把数据库查询出来的数据，封装到了user中
list.add(user); //把封装并赋值完成的对象存入list集合中
catch (SQLException e)
e.printStackTrace();
return list;
2:修改密码
UserDao
public int updateKeyWord(String username, String pwd)
//创建一个集合，用来存放从数据库查询到的数据封装的对象
String sql = "UPDATE user set user_keyword=? where user_id=? ";
try
ps=con.prepareStatement(sql);
//给？赋值
ps.setString(1, pwd);
ps.setString(2, username);
//执行sql 得到一个resultSet
num = ps.executeUpdate();
//处理rs
catch (SQLException e)
e.printStackTrace();
return num;
3:新增用户功能
UserDao
public int insertMethod(UserInfo userInfo)
//ArrayList<UserInfo> list = new ArrayList<>();
String sql = "insert into user values(?,?,?) ";
try
ps=con.prepareStatement(sql);
//给？赋值
ps.setString(1, userInfo.getUser_id());
ps.setString(2, userInfo.getUser_ketword());
ps.setString(3, userInfo.getUser_role());
//执行sql 得到一个resultSet
num = ps.executeUpdate();
//处理rs
catch (SQLException e)
e.printStackTrace();
return num;
4:删除用户功能
UserDao
public int delectMethod(UserInfo user1)
// ArrayList<UserInfo> list = new ArrayList<>();
String sql = "delete FROM user where user_id = ?";
try
ps = con.prepareStatement(sql);
ps.setObject(1, user1.getUser_id());
num = ps.executeUpdate();
catch (Exception e)
e.printStackTrace();
return num;
5:查询用户(根据用户名模糊查询)
UserDao
public List<UserInfo> selectUser(String content)
ArrayList<UserInfo> list = new ArrayList<>();
String sql = "select * from user where user_id like ? ";
try
ps = con.prepareStatement(sql);
ps.setObject(1, "%"+content+"%");
rs = ps.executeQuery();
while (rs.next())
UserInfo user = new UserInfo();
String user_id = rs.getString("user_id");
String user_keyword = rs.getString("user_keyword");
String user_role = rs.getString("user_role");
user.setUser_id(user_id);
user.setUser_ketword(user_keyword);
user.setUser_role(user_role);
list.add(user);
catch (Exception e)
e.printStackTrace();
return list;
UserControl
package com.ts.controller;
import com.ts.Service.UserService;
import com.ts.pojo.UserInfo;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;
/**
* @description:com.ts.controller_Word.java
* @author: 霏宇
* @time: 2022/6/27,17:22
*/
public class UserControl
Scanner sc = new Scanner(System.in);
// 创建user逻辑层对象
UserService service = new UserService();
BookControl control2= new BookControl();
ReadControl control3=new ReadControl();
// 数据库登录界面
public void login()
System.out.println("------数据库系统登录界面------");
System.out.println("请输入您的登录名");
UserInfo user = new UserInfo();
String user_id = sc.next(); //获取控制台输入的内容 用作user_id
user.setUser_id(user_id); //给user对象设置user_id
System.out.println("请输入您的密码");
String user_keyWord = sc.next();
user.setUser_ketword(user_keyWord);
System.out.println(user.toString());
//调用service层方法 获取权限
String quanxian = service.login(user.getUser_id(), user.getUser_ketword());
if(quanxian.equals("admin"))
indexGuan(user);
else if(quanxian.equals("普通用户"))
indexYon(user);
else
System.out.println("输入的登录名与密码不匹配");
login();
//管理员界面
public void indexGuan(UserInfo user)
System.out.println("---------管理员界面----------");
System.out.println("输入数字,选择相应的功能");
System.out.println("1:用户登录");
System.out.println("2:修改密码");
System.out.println("3:新增用户功能");
System.out.println("4:删除用户功能");
System.out.println("5:查询用户(根据用户名模糊查询)");
System.out.println("6:新增图书");
System.out.println("7:删除图书");
System.out.println("8:修改图书");
System.out.println("9:退出数据库系统界面");
int choose = sc.nextInt();
if (choose == 1)
login();
if (choose == 2)
updateKeyWord(user);
if (choose == 3)
insertMethod(user);
if (choose == 4)
delectMethod(user);
if (choose == 5)
selectUser(user);
if (choose == 6)
control2.insertMethod();
indexGuan(user);
if (choose == 7)
control2.delectMethod();
indexGuan(user);
if (choose == 8)
control2.updateBookInfo();
indexGuan(user);
if (choose == 9)
System.out.println("------退出数据库系统界面---------");
/**
* @param user
* 用户界面
*/
public void indexYon(UserInfo user)
System.out.println("---------用户界面----------");
System.out.println("输入数字,选择相应的功能");
System.out.println("1:新增读者信息,同时新增一个读者用户信息");
System.out.println("2:删除读者信息,同时删除读者的用户信息");
System.out.println("3:修改读者信息,同时修改读者的用户信息");
System.out.println("4:查询最近1周将要到期图书名，读者姓名，还书时间，借阅时间");
System.out.println("5:查询已过还书时间的图书名，读者姓名，还书时间，借阅时间");
System.out.println("6:用户借书功能");
System.out.println("7:用户还书功能");
System.out.println("8:退出登录");
int choose = sc.nextInt();
if (choose == 1)
control3.addMethod();
indexYon(user);
if (choose == 2)
control3.delectMethod();
indexYon(user);
if (choose == 3)
control3.updateReaderInfoMethod();
indexYon(user);
if (choose == 4)
control3.userSelectByWeek();
indexYon(user);
if (choose == 5)
control3.selectReaderInfoOutReturnTime();
indexYon(user);
if (choose == 6)
control3.borrowBook(user);
indexYon(user);
if (choose == 7)
control3.returnBorrowBook(user);
indexYon(user);
if (choose == 8)
System.out.println("------退出数据库系统界面---------");
public void updateKeyWord(UserInfo user)
System.out.println("--------修改密码界面--------- ");
System.out.println("请输入您要修改的密码值:");
String adminJS = user.getUser_id();
String key2 = sc.next();
int num2 = service.updateKeyWord(adminJS, key2);
if (num2 == 0)
System.out.println("该用户修改失败");
updateKeyWord(user);
else
System.out.println("该用户密码修改成功");
indexGuan(user);
public void insertMethod(UserInfo user)
System.out.println("-------------管理员新增用户界面--------------");
UserInfo user1 = new UserInfo();
System.out.println("请输入新增用户id:");
String user1Id = sc.next();
System.out.println("请输入新增用户密码");
String user1Key = sc.next();
System.out.println("请输入新增用户类型");
String user1Role = sc.next();
user1.setUser_id(user1Id);
user1.setUser_ketwor以上是关于JDBC-图书管理系统的主要内容，如果未能解决你的问题，请参考以下文章