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登录页面，库存管理页面

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lu
2025-09-17 20:49:13 +08:00
parent e9b227f8b5
commit 112006f9b9
5 changed files with 293 additions and 19 deletions
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lib/mysql-connector-j-8.4.0.jar Normal file
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src/main/java/com/example/Home.java Normal file
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package com.example;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class Home extends JFrame implements ActionListener {
JMenuBar menuBar;
JMenu menu;
// 库存菜单 进货菜单 销售菜单
JMenuItem StockMenuItem,InventoryMenuItem,SalesMenuItem;
Home() {
super("城市进销存信息管理系统");
menuBar = new JMenuBar();
menu = new JMenu("菜单");
StockMenuItem = new JMenuItem("库存信息管理");
InventoryMenuItem = new JMenuItem("进货信息管理");
SalesMenuItem = new JMenuItem("销售信息管理");
menu.add(StockMenuItem);
menu.add(InventoryMenuItem);
menu.add(SalesMenuItem);
menuBar.add(menu);
setJMenuBar(menuBar);
StockMenuItem.addActionListener(this);
InventoryMenuItem.addActionListener(this);
SalesMenuItem.addActionListener(this);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100,100,500,500);
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource()==StockMenuItem){
new StockProductManagement();
this.setVisible(false);
}
if(e.getSource()==InventoryMenuItem){
new InventoryProductManagement();
this.setVisible(false);
}
if(e.getSource()==SalesMenuItem){
new SalesProductManagement();
this.setVisible(false);
}
}
}

41
src/main/java/com/example/Jdbc.java Normal file
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package com.example;
import java.sql.*;
public class Jdbc {
private Connection conn;
private Statement stmt;
private ResultSet rs;
Jdbc(){
try {
Class.forName("com.mysql.cj.jdbc.Driver");
String password = "root";
String username = "root";
conn= DriverManager.getConnection("jdbc:mysql://localhost:3306/su?useSSL=false&serverTimezone=UTC", username, password);
stmt=conn.createStatement();
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}
}
public ResultSet query(String sql) throws SQLException {
rs=stmt.executeQuery(sql);
return rs;
}
public void update(String sql) throws SQLException {
stmt.executeUpdate(sql);
}
public void close() throws SQLException {
if(rs!=null){
rs.close();
}
if(stmt!=null){
stmt.close();
}
if(conn!=null){
conn.close();
}
}
}

65
src/main/java/com/example/Main.java
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@@ -4,39 +4,66 @@ import javax.swing.*;
import java.awt.*; import java.awt.*;
import java.awt.event.ActionEvent; import java.awt.event.ActionEvent;
import java.awt.event.ActionListener; import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Random;
public class Main extends JFrame implements ActionListener { public class Main extends JFrame implements ActionListener {
JButton jb1,jb2,jb3; JButton jb1,jb2;
JTextField tf1,tf3;
JPasswordField tf2;
JLabel jl1,jl2,jl3,jl4,jl5;
Random rand = new Random();
Main(){ Main(){
super("超市进销存信息管理系统"); super("登录");
jb1=new JButton("进货商品信息"); jb1=new JButton("登录");
jb2=new JButton("销售商品信息"); jb2=new JButton("取消");
jb3=new JButton("库存商品信息"); tf1=new JTextField(6);
tf2=new JPasswordField(6);
tf3=new JTextField(6);
jl1=new JLabel("用户名",JLabel.CENTER);
jl2=new JLabel("密码",JLabel.CENTER);
jl3=new JLabel("验证码",JLabel.CENTER);
jl4=new JLabel("验证码：",JLabel.CENTER);
jl5=new JLabel("",JLabel.CENTER);
jb1.addActionListener(this); jb1.addActionListener(this);
jb2.addActionListener(this); jb2.addActionListener(this);
jb3.addActionListener(this); setLayout(new GridLayout(5,2));
setLayout(new GridLayout(3,3));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
add(jb1); add(jl1);add(tf1);
add(jb2); add(jl2);add(tf2);
add(jb3); add(jl3);add(tf3);
setBounds(100,100,500,500); add(jl4);add(jl5);
add(jb1);add(jb2);
jl5.setText(Integer.toString(rand.nextInt(100)+100));
setBounds(500,100,500,500);
setVisible(true); setVisible(true);
} }
@Override @Override
public void actionPerformed(ActionEvent e) { public void actionPerformed(ActionEvent e) {
if(e.getSource()==jb1){ if(e.getSource()==jb1){
new InventoryProductManagement();//进入进货商品信息管理系统 Jdbc jdbc = new Jdbc();
setVisible(false); String sql = "select * from user where username='"+tf1.getText()+"' and password='"+tf2.getText()+"'"; ;
try {
ResultSet rs = jdbc.query(sql);
jdbc.close();
if(rs.next()&&tf3.getText().equals(jl5.getText())) {
JOptionPane.showMessageDialog(null, "登录成功");
new Home();
this.setVisible(false);
}
else{
JOptionPane.showMessageDialog(null,"登录失败");
jl5.setText(Integer.toString(rand.nextInt(100)+100));
}
} catch (SQLException ex) {
throw new RuntimeException(ex);
}
}else if(e.getSource()==jb2){ }else if(e.getSource()==jb2){
new SalesProductManagement();//进入销售商品信息管理系统 System.exit(0);
setVisible(false);
}else if(e.getSource()==jb3){
new StockProductManagement();//进入库存商品信息管理系统
setVisible(false);
} }
} }

158
src/main/java/com/example/StockProductManagement.java
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@@ -1,18 +1,176 @@
package com.example; package com.example;
import javax.swing.*; import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.awt.event.ActionEvent; import java.awt.event.ActionEvent;
import java.awt.event.ActionListener; import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.SQLException;
public class StockProductManagement extends JFrame implements ActionListener { public class StockProductManagement extends JFrame implements ActionListener {
JMenuBar menuBar;
JMenu menu;
JMenuItem menuItem1,menuItem2,menuItem3;
private JTable table;
private final DefaultTableModel tableModel;
StockProductManagement() { StockProductManagement() {
super("库存商品信息管理"); super("库存商品信息管理");
menuBar = new JMenuBar();
setJMenuBar(menuBar);
menu = new JMenu("菜单");
menuBar.add(menu);
menuItem1 = new JMenuItem("添加商品");
menuItem2 = new JMenuItem("删除商品");
menu.add(menuItem1);
menu.add(menuItem2);
// menu.add(menuItem3);
menuItem1.addActionListener(this);
menuItem2.addActionListener(this);
// menuItem3.addActionListener(this);
setBounds(100,100,500,500); setBounds(100,100,500,500);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// 表头
String[] columnNames = {"商品名称", "商品数量", "进货单价", "销售单价", "单个利润", "已售数量"};
tableModel = new DefaultTableModel(columnNames, 0);
table = new JTable(tableModel);
// 滚动面板
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane, BorderLayout.CENTER);
// 初始化加载数据库数据
loadData();
setVisible(true); setVisible(true);
} }
@Override @Override
public void actionPerformed(ActionEvent e) { public void actionPerformed(ActionEvent e) {
if (e.getSource() == menuItem1) {
JFrame frame = new JFrame();
frame.setTitle("添加商品");
frame.setLayout(new GridLayout(5, 2));
JLabel nameLabel = new JLabel("商品名称:");
JTextField nameField = new JTextField();
JLabel countLabel = new JLabel("商品数量:");
JTextField countField = new JTextField();
JLabel purchasePriceLabel = new JLabel("进货单价:");
JTextField purchasePriceField = new JTextField();
JLabel sellingPriceLabel = new JLabel("销售单价:");
JTextField sellingPriceField = new JTextField();
JButton addButton = new JButton("添加");
JButton cancelButton = new JButton("取消");
frame.add(nameLabel);
frame.add(nameField);
frame.add(countLabel);
frame.add(countField);
frame.add(purchasePriceLabel);
frame.add(purchasePriceField);
frame.add(sellingPriceLabel);
frame.add(sellingPriceField);
frame.add(addButton);
frame.add(cancelButton);
addButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String name = nameField.getText();
int count = Integer.parseInt(countField.getText());
double purchasePrice = Double.parseDouble(purchasePriceField.getText());
double sellingPrice = Double.parseDouble(sellingPriceField.getText());
// 调用数据库添加方法
Jdbc jdbc = new Jdbc();
try {
jdbc.update("INSERT INTO commodity (name, count, purchase_price, selling_price, profit, quantity_sold) VALUES ('" + name + "', " + count + ", " + purchasePrice + ", " + sellingPrice + ", " + (sellingPrice - purchasePrice) + ", 0)");
jdbc.close();
// 刷新数据
loadData();
// 关闭弹窗
frame.dispose();
} catch (SQLException ex) {
ex.printStackTrace();
JOptionPane.showMessageDialog(frame, "添加商品失败: " + ex.getMessage());
}
}
});
cancelButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setVisible(true);
}
else if (e.getSource() == menuItem2) {
JFrame frame = new JFrame();
frame.setTitle("删除商品");
frame.setLayout(new GridLayout(2, 2));
JLabel nameLabel = new JLabel("商品名称:");
JTextField nameField = new JTextField();
JButton deleteButton = new JButton("删除");
JButton cancelButton = new JButton("取消");
frame.add(nameLabel);
frame.add(nameField);
frame.add(deleteButton);
frame.add(cancelButton);
deleteButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String name = nameField.getText();
// 调用数据库删除方法
Jdbc jdbc = new Jdbc();
try {
jdbc.update("DELETE FROM commodity WHERE name='" + name + "'");
jdbc.close();
// 刷新数据
loadData();
// 关闭弹窗
frame.dispose();
} catch (SQLException ex) {
ex.printStackTrace();
JOptionPane.showMessageDialog(frame, "删除商品失败: " + ex.getMessage());
}
}
});
cancelButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setVisible(true);
}
}
private void loadData() {
Jdbc jdbc = new Jdbc();
try {
ResultSet rs = jdbc.query("SELECT name,count,purchase_price,selling_price,profit,quantity_sold FROM commodity");
// 清空旧数据
tableModel.setRowCount(0);
// 填充新数据
while (rs.next()) {
Object[] row = {
rs.getString("name"),
rs.getInt("count"),
rs.getDouble("purchase_price"),
rs.getDouble("selling_price"),
rs.getDouble("profit"),
rs.getInt("quantity_sold")
};
tableModel.addRow(row);
}
rs.close();
jdbc.close();
} catch (SQLException e) {
e.printStackTrace();
JOptionPane.showMessageDialog(this, "加载数据失败: " + e.getMessage());
}
}
public static void main(String[] args) {
new StockProductManagement();
} }
} }