java超市收银系统mysql，java课程设计（含数据库代码）

1.不会运行直接私信，保姆级教学。
2.功能介绍，实现了管理员与收银员登录，管理员对收银员的增删改查，收银员对顾客的身份查询和商品价格查询。
直接上图

2.1登录页面代码

package com.yz.win;import com.yz.util.JdbcUtil;import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.*;public class Login  {public Login(){JFrame jFrame=new JFrame();jFrame.setTitle("login");jFrame.setLayout(null);JButton jButton1=new JButton("登陆");JButton jButton2 = new JButton("退出");JLabel jLabel1 = new JLabel("账号");JLabel jLabel2 = new JLabel("密码");JLabel jLabel3 = new JLabel("收银员");JLabel jLabel4 = new JLabel("管理员");JTextArea jTextArea1 = new JTextArea();JTextArea jTextArea2 = new JTextArea();JRadioButton jRadioButton1 = new JRadioButton("管理员");JRadioButton jRadioButton2 = new JRadioButton("收银员");jRadioButton1.setSize(80,30);jRadioButton2.setSize(80,30);jRadioButton1.setLocation(150,250);jRadioButton2.setLocation(250,250);jLabel1.setSize(70,30);jLabel2.setSize(70,30);jLabel1.setLocation(100,100);jLabel2.setLocation(100,200);jLabel3.setSize(70,30);jLabel4.setSize(70,30);jLabel3.setLocation(100,250);jLabel4.setLocation(300,250);jButton1.setSize(70,30);jButton2.setSize(70,30);jButton1.setLocation(100,300);jButton2.setLocation(250,300);jTextArea1.setSize(130,20);jTextArea1.setLocation(180,100);jTextArea2.setSize(130,20);jTextArea2.setLocation(180,200);jFrame.add(jButton1);jFrame.add(jButton2);jFrame.add(jLabel1);jFrame.add(jLabel2);jFrame.add(jTextArea1);jFrame.add(jTextArea2);jFrame.add(jRadioButton1);jFrame.add(jRadioButton2);jFrame.setVisible(true);jFrame.setSize(500,500);jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jFrame.setLocation(500,200);jButton1.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {String id=jTextArea1.getText().trim();String password=jTextArea2.getText().trim();Connection connection=JdbcUtil.getConnection();String sql="select * from staff where staffNo=?";PreparedStatement psta=null;ResultSet res=null;if (id.equals("") || password.equals("")) {JOptionPane.showMessageDialog(jFrame, "用户信息不允许为空！");return;}else {try {psta=connection.prepareStatement(sql);psta.setString(1,id);res=psta.executeQuery();while (res.next()){if(password.equals(res.getString(7)))if(jRadioButton1.isSelected()){new AdminWin();jFrame.dispose();return;}else if (jRadioButton2.isSelected()){new StaffWin();jFrame.dispose();return;}else {JOptionPane.showMessageDialog(jFrame,"请选择身份！");}}} catch (SQLException e1) {e1.printStackTrace();}}}});jButton2.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {jFrame.dispose();}});}public static void main(String[] args) {new Login();}
}

2.2管理员页面代码

package com.yz.win;import com.yz.util.JdbcUtil;import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.*;public class AdminWin {public AdminWin(){JFrame jFrame = new JFrame();JButton jButton1=new JButton("查询收银员信息");JButton jButton2 = new JButton("增加收银员信息");JButton jButton3=new JButton("删除收银员信息");JButton jButton4 = new JButton("修改收银员信息");JLabel jLabel1 = new JLabel("账号");JLabel jLabel2 = new JLabel("姓名");JLabel jLabel3 = new JLabel("身份");JLabel jLabel4 = new JLabel("年龄");JLabel jLabel5 = new JLabel("性别");JLabel jLabel6 = new JLabel("地址");JLabel jLabel7 = new JLabel("密码");JLabel jLabel8 = new JLabel("电话");JTextArea jTextArea1 = new JTextArea();JTextArea jTextArea2 = new JTextArea();JTextArea jTextArea3 = new JTextArea();JTextArea jTextArea4 = new JTextArea();JTextArea jTextArea5 = new JTextArea();JTextArea jTextArea6 = new JTextArea();JTextArea jTextArea7 = new JTextArea();JTextArea jTextArea8 = new JTextArea();jLabel1.setSize(70,30);jLabel2.setSize(70,30);jLabel3.setSize(70,30);jLabel4.setSize(70,30);jLabel5.setSize(70,30);jLabel6.setSize(70,30);jLabel7.setSize(70,30);jLabel8.setSize(70,30);jLabel1.setLocation(50,50);jLabel2.setLocation(50,100);jLabel3.setLocation(50,150);jLabel4.setLocation(50,200);jLabel5.setLocation(50,250);jLabel6.setLocation(50,300);jLabel7.setLocation(50,350);jLabel8.setLocation(50,400);jTextArea1.setSize(130,20);jTextArea2.setSize(130,20);jTextArea3.setSize(130,20);jTextArea4.setSize(130,20);jTextArea5.setSize(130,20);jTextArea6.setSize(130,20);jTextArea7.setSize(130,20);jTextArea8.setSize(130,20);jTextArea1.setLocation(100,50);jTextArea2.setLocation(100,100);jTextArea3.setLocation(100,150);jTextArea4.setLocation(100,200);jTextArea5.setLocation(100,250);jTextArea6.setLocation(100,300);jTextArea7.setLocation(100,350);jTextArea8.setLocation(100,400);jButton1.setSize(130,30);jButton2.setSize(130,30);jButton3.setSize(130,30);jButton4.setSize(130,30);jButton1.setLocation(100,600);jButton2.setLocation(300,600);jButton3.setLocation(500,600);jButton4.setLocation(700,600);jFrame.add(jButton1);jFrame.add(jButton2);jFrame.add(jButton3);jFrame.add(jButton4);jFrame.add(jLabel1);jFrame.add(jLabel2);jFrame.add(jLabel3);jFrame.add(jLabel4);jFrame.add(jLabel5);jFrame.add(jLabel6);jFrame.add(jLabel7);jFrame.add(jLabel8);jFrame.add(jTextArea1);jFrame.add(jTextArea2);jFrame.add(jTextArea3);jFrame.add(jTextArea4);jFrame.add(jTextArea5);jFrame.add(jTextArea6);jFrame.add(jTextArea7);jFrame.add(jTextArea8);jFrame.setTitle("Admin");jFrame.setLayout(null);jFrame.setVisible(true);jFrame.setSize(1000,700);jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jFrame.setLocation(500,200);jButton1.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {Connection con= JdbcUtil.getConnection();PreparedStatement psta=null;ResultSet res=null;String sql="select * from staff where staffNo=?";String id=jTextArea1.getText().trim();try {psta=con.prepareStatement(sql);psta.setString(1,id);res=psta.executeQuery();while (res.next()) {jTextArea1.setText(res.getString(1));jTextArea2.setText(res.getString(2));jTextArea3.setText(res.getString(3));jTextArea4.setText(res.getString(4));jTextArea5.setText(res.getString(5));jTextArea6.setText(res.getString(6));jTextArea7.setText(res.getString(7));jTextArea8.setText(res.getString(8));}} catch (SQLException e1) {e1.printStackTrace();}}});jButton3.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {Connection con= JdbcUtil.getConnection();PreparedStatement psta=null;ResultSet res=null;String sql="delete  from staff where staffNo=?";String id=jTextArea1.getText().trim();try {psta=con.prepareStatement(sql);psta.setString(1,id);int n=psta.executeUpdate();if (n>0){JOptionPane.showMessageDialog(jFrame,"success!");}} catch (SQLException e1) {e1.printStackTrace();}}});jButton2.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {Connection con= JdbcUtil.getConnection();PreparedStatement psta=null;ResultSet res=null;String sql="insert into staff values(?,?,?,?,?,?,?,?)";String id=jTextArea1.getText().trim();String id1=jTextArea2.getText().trim();String id2=jTextArea3.getText().trim();String id3=jTextArea4.getText().trim();String id4=jTextArea5.getText().trim();String id5=jTextArea6.getText().trim();String id6=jTextArea7.getText().trim();String id7=jTextArea8.getText().trim();try {psta=con.prepareStatement(sql);psta.setString(1,id);psta.setString(2,id1);psta.setString(3,id2);psta.setString(4,id3);psta.setString(5,id4);psta.setString(6,id5);psta.setString(7,id6);psta.setString(8,id7);int n=psta.executeUpdate();if (n>0){JOptionPane.showMessageDialog(jFrame,"success!");}} catch (SQLException e1) {e1.printStackTrace();}}});jButton4.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {Connection con= JdbcUtil.getConnection();PreparedStatement psta=null;ResultSet res=null;String sql="update staff set staffNo=?,staffName=?,position=?,age=?,sex=?,address=?,password=?,phone=? where staffNo=?";String id=jTextArea1.getText().trim();String id1=jTextArea2.getText().trim();String id2=jTextArea3.getText().trim();String id3=jTextArea4.getText().trim();String id4=jTextArea5.getText().trim();String id5=jTextArea6.getText().trim();String id6=jTextArea7.getText().trim();String id7=jTextArea8.getText().trim();try {psta=con.prepareStatement(sql);psta.setString(1,id);psta.setString(2,id1);psta.setString(3,id2);psta.setString(4,id3);psta.setString(5,id4);psta.setString(6,id5);psta.setString(7,id6);psta.setString(8,id7);psta.setString(9,id);int n=psta.executeUpdate();if (n>0){JOptionPane.showMessageDialog(jFrame,"success!");}} catch (SQLException e1) {e1.printStackTrace();}}});}
}

2.3收银员页面代码

package com.yz.win;import com.yz.util.JdbcUtil;import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.*;public class StaffWin {public StaffWin(){JFrame jFrame = new JFrame();jFrame.setTitle("staff");JButton jButton = new JButton("查询");JButton jButton1 = new JButton("查询");JLabel jLabel1 = new JLabel("请输入商品名称：");JLabel jLabel2 = new JLabel("价格：");JLabel jLabel4 = new JLabel("顾客名：");JLabel jLabel5 = new JLabel("是否为会员：");JTextArea jTextArea1 = new JTextArea();JTextArea jTextArea2 = new JTextArea();JTextArea jTextArea4 = new JTextArea();JTextArea jTextArea5 = new JTextArea();jButton.setSize(60,30);jButton.setLocation(300,200);jButton1.setSize(60,30);jButton1.setLocation(300,100);jTextArea1.setSize(100,20);jTextArea1.setLocation(160,200);jTextArea2.setSize(100,20);jTextArea2.setLocation(160,300);jTextArea4.setLocation(160,100);jTextArea4.setSize(100,20);jTextArea5.setLocation(160,150);jTextArea5.setSize(100,20);jLabel1.setSize(120,30);jLabel2.setSize(70,30);jLabel1.setLocation(50,200);jLabel2.setLocation(100,300);jLabel4.setSize(70,30);jLabel4.setLocation(100,100);jLabel5.setSize(90,30);jLabel5.setLocation(90,150);jFrame.add(jLabel5);jFrame.add(jTextArea5);jFrame.add(jButton1);jFrame.add(jTextArea4);jFrame.add(jLabel4);jFrame.add(jButton);jFrame.add(jTextArea1);jFrame.add(jTextArea2);jFrame.add(jLabel1);jFrame.add(jLabel2);jFrame.setLayout(null);jFrame.setVisible(true);jFrame.setSize(500,500);jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jFrame.setLocation(500,200);jButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {String id=jTextArea1.getText().trim();String password=jTextArea2.getText().trim();Connection connection= JdbcUtil.getConnection();String sql="select * from commodity where commodityName=?";PreparedStatement psta=null;ResultSet res=null;try {psta=connection.prepareStatement(sql);psta.setString(1,id);res=psta.executeQuery();while (res.next()){if (jTextArea5.getText().equals("会员")){jTextArea2.setText(res.getString(5));}else {jTextArea2.setText(res.getString(4));}}} catch (SQLException e1) {e1.printStackTrace();}}});jButton1.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {String id=jTextArea4.getText().trim();String password=jTextArea2.getText().trim();Connection connection= JdbcUtil.getConnection();String sql="select * from member where memberName=?";PreparedStatement psta=null;ResultSet res=null;try {psta=connection.prepareStatement(sql);psta.setString(1,id);res=psta.executeQuery();while (res.next()){jTextArea5.setText(res.getString(3));}} catch (SQLException e1) {e1.printStackTrace();}}});}
}

2.4,连接数据库的工具类

package com.yz.util;import java.sql.*;public class JdbcUtil {private static String driver= "com.mysql.jdbc.Driver";private static String url= "jdbc:mysql://127.0.0.1:3306/shopping?useUnicode=true&characterEncoding=UTF-8";private static String user= "root";private static String password= "123456";//1.注册驱动static{try {Class.forName(driver);} catch (ClassNotFoundException e) {e.printStackTrace();}}//2.获得连接public static Connection getConnection(){try {return DriverManager.getConnection(url, user, password);} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();return null;}}//3.释放资源public static void close(Connection con,Statement sta,ResultSet res){if(res!=null){try {res.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}if(sta!=null){try {sta.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}if(con!=null){try {con.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}public static void close(Connection con,Statement sta){close(con, sta, null);}public static void close(Connection con,PreparedStatement sta,ResultSet res){close(con, (Statement)sta, res);}public static void close(Connection con,PreparedStatement sta){close(con, (Statement)sta, null);}public static void main(String[] args) {System.out.println(JdbcUtil.getConnection());}
}

2.5数据库代码

/*
SQLyog Ultimate v11.24 (32 bit)
MySQL - 5.1.49-community : Database - shopping
*********************************************************************
*/
/*!40101 SET NAMES utf8 */;/*!40101 SET SQL_MODE=''*/;/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`shopping` /*!40100 DEFAULT CHARACTER SET utf8 */;USE `shopping`;/*Table structure for table `commodity` */DROP TABLE IF EXISTS `commodity`;CREATE TABLE `commodity` (`commodityNo` varchar(20) NOT NULL,`commodityName` varchar(60) NOT NULL,`purchaseprice` varchar(30) NOT NULL,`saleprice` varchar(30) NOT NULL,`memberprice` varchar(30) NOT NULL,`stock` varchar(20) NOT NULL,PRIMARY KEY (`commodityNo`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `commodity` */insert  into `commodity`(`commodityNo`,`commodityName`,`purchaseprice`,`saleprice`,`memberprice`,`stock`) values ('211089','涔愪簨钖墖','2','8','6.6','300'),('211345','鍗緳澶ц荆妫?,'1.5','4','3.2','500'),('211890','寰风宸у厠鍔?,'16','35','29.5','500'),('266456','浜哄瓧鎷?,'6','25','22.8','600'),('533908','娲楁磥绮?,'8','38','33.6','780'),('677758','鐫¤。','35','89','78.5','370');/*Table structure for table `member` */DROP TABLE IF EXISTS `member`;CREATE TABLE `member` (`memberNo` varchar(30) NOT NULL,`memberName` varchar(50) NOT NULL,`cardNo` varchar(30) NOT NULL,`age` varchar(20) DEFAULT NULL,`sex` varchar(20) DEFAULT NULL,`address` varchar(60) DEFAULT NULL,`phone` varchar(40) NOT NULL,PRIMARY KEY (`memberNo`,`cardNo`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `member` */insert  into `member`(`memberNo`,`memberName`,`cardNo`,`age`,`sex`,`address`,`phone`) values ('266789','瀛欐倓鎮?,'546789','20',NULL,NULL,'2615467465'),('322568','鐜嬫櫠鏅?,'344567','23','濂?,'鍖楁箹灏忓尯','1346785786'),('455787','榫欎含鑵?,'244356',NULL,NULL,NULL,'1456783456'),('456230','闊︽嫑璐?,'453266','59','鐢?,'缈绘枟鑺卞洯','3451234789'),('456900','鏋楀瓩绉?,'456436',NULL,NULL,NULL,'3565778543');/*Table structure for table `staff` */DROP TABLE IF EXISTS `staff`;CREATE TABLE `staff` (`staffNo` varchar(20) NOT NULL,`staffName` varchar(50) NOT NULL,`position` varchar(50) NOT NULL,`age` varchar(10) DEFAULT NULL,`sex` varchar(20) DEFAULT NULL,`address` varchar(60) DEFAULT NULL,`password` varchar(60) NOT NULL,`phone` varchar(30) DEFAULT NULL,PRIMARY KEY (`staffNo`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `staff` */insert  into `staff`(`staffNo`,`staffName`,`position`,`age`,`sex`,`address`,`password`,`phone`) values ('145890','鑻忓崡','鏀堕摱鍛?,'20','濂?,'鎰忎箟灏忓尯','345678','1453455590'),('189654','寮犲紶','鏀堕摱鍛?,'27','鐢?,NULL,'456789','1786897564'),('189675','鐜嬩紵','鏀堕摱鍛?,'19','鐢?,NULL,'567890','1896543897'),('564890','瀛欎咕绉?,'绠＄悊鍛?,'34','鐢?,'鍓嶆櫙灏忓尯','234567','1674567907'),('567345','寮犲墠杩?,'绠＄悊鍛?,'46','鐢?,'缈绘枟鑺卞洯','123456','1567894567'),('786453','璁告','鏀堕摱鍛?,'25','濂?,'閲戞鑺卞洯','012345','3467564474');/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

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