Java 开发的购物系统-窗体程序附详细设计文档

迷南。 2024-03-27 16:41 30阅读 0赞

今天为大家分享一个java语言编写的图书管理程序-400，目前系统功能已经很全面，后续会进一步完善。整个系统界面漂亮，有完整得源码，希望大家可以喜欢。喜欢的帮忙点赞和关注。一起编程、一起进步

## 开发环境 ##

开发语言为Java，开发环境Eclipse或者IDEA都可以。运行主程序，或者执行打开JAR文件即可以运行本程序。

## 系统框架 ##

利用JDK自带的SWING框架开发，不需要安装第三方JAR包，纯窗体模式，直接运行Main文件即可以。同时带有详细得设计文档

## 主要功能 ##

### 1 开发背景 ###

网上商城具有以下几个非常明显的优势:

1.投资少，回收快。一项针对中国中小企业的情况调查显示，个人在网下启动销售公司的平均费用至少5万元，而网上开店建店成本非常小。一般说，筹办一家网上的商店投入很小，不用去办营业执照，不用去租门面，不用囤积货品，所需资金不过1500元左右；网上商店比同等规模的地面商店“租金”要低得多，同时租金不会因为营业面积的增加而增加，投资者也不用为延长营业时间而增加额外的费用。

2.24小时营业时间。网上商店延长了商店的营业时间，一天24小时、一年365天不停地运作，无须专人值班看店，都可照常营业。传统店铺的营业时间一般为8-12小时，遇上坏天气或者老板、店员有急事也不得不暂时休息。

3.不受店面空间的限制。哪怕只是街边小店，在网上却可以拥有百货大楼那么大的店面，只要投资者愿意，可以摆上成千上万种商品。目前国内最大的专业拍卖网站同时在线的商品要超过10万件，已超过一些大超市。

4.不受地理位置影响。不管客户离店有多远，也不管顾客是国内还是国外，在网上，客户一样可以很方 便地找到并购买商品。这令消费群体突破了地域的限制，变得无限广阔了

### 2 需求分析 ###

根据充分的需求调研，得出系统分为前台和后台，其中

1 前台的主要功能

（1）商品浏览查询：商品的预览查询、搜索或查看商品的信息。

（2）购物车管理：查看购物车，将商品（食品）添加到购物车，对购物车中的菜品进行添加、删除或修改。

（3）订单管理：生成订单，查看订单信息，修改订单信息，取消订单。

## 实现效果 ##

### 1 登陆界面 ###

![64b98e7ae93725da976f0409d6b14746.jpeg][]

### 2 注册界面 ###

![220d3b97dc5d4e3055421426befc5de2.jpeg][]

### 3 商品浏览 ###

![ce396f0dbf3392cb3aaa8c024adedd75.jpeg][]

### 4 加入购物车 ###

![9ed711f262ca51b7372fec609ad57e48.jpeg][]

### 5 用户充值 ###

![d89e9eaba7b5bbd5a918359c60632f43.jpeg][]

### 6 支付生成订单 ###

![abe87ea6365d3ca40ecf1ad02113f53c.jpeg][]

## 关键代码 ##

package cn.shopping.window;
    
    import java.awt.BorderLayout;
    import java.awt.EventQueue;
    
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.border.EmptyBorder;
    
    import cn.shopping.entites.Goods;
    import cn.shopping.entites.User;
    import cn.shopping.listener.GoodsAddListener;
    import cn.shopping.utils.AppData;
    
    import javax.swing.BoxLayout;
    import javax.swing.ImageIcon;
    
    import java.awt.Component;
    import javax.swing.Box;
    import javax.swing.JLabel;
    import javax.swing.JTextField;
    import java.awt.Dimension;
    import javax.swing.JScrollPane;
    import javax.swing.JTextPane;
    import java.awt.TextArea;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseListener;
    import java.io.File;
    import java.text.DecimalFormat;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Map;
    import java.util.Set;
    
    import javax.swing.JButton;
    import javax.swing.JDialog;
    import javax.swing.ScrollPaneConstants;
    import java.awt.GridLayout;
    import java.awt.Image;
    import java.awt.FlowLayout;
    import java.awt.Color;
    import java.awt.Font;
    import javax.swing.JTable;
    import javax.swing.border.LineBorder;
    import javax.swing.table.DefaultTableModel;
    import javax.swing.SwingConstants;
    import javax.swing.UIManager;
    
    public class ShopFrame extends JFrame implements MouseListener {
    
        private AppData appData = AppData.getInstance();
    
        private JPanel AllGoodsPanel = new JPanel(); // 显示所有商品的面板
        private JPanel ShoppingCartPanel = new JPanel(); // 显示购物车的面板
        private JPanel contentPane;
        private JTextField searchKey;
        private JLabel userName = new JLabel();
        private JLabel userMoney = new JLabel();
        private JLabel userPoint = new JLabel();
        private JButton logout_btn = new JButton("\u6CE8\u9500");
        private JButton addMoney_btn = new JButton("\u5145\u503C");
        private JButton buy_btn = new JButton("\u8D2D\u4E70");
        private JButton clear_btn = new JButton("\u6E05\u7A7A");
        private JButton search_btn = new JButton("\u641C\u7D22");
        private JLabel CalcTypeAndNums_lbl = new JLabel(
                "\u603B\u8BA1\uFF1A\u79CD\u7C7B\uFF1A0\uFF0C\u4EF6\u6570\uFF1A0\uFF0C\u603B\u4EF7\uFF1A0");
        private JLabel pic = new JLabel();
        JButton pic_btn = new JButton("\u4E0A\u4F20");
        /**
         * Launch the application.
         */
        public static void main(String[] args) {
            EventQueue.invokeLater(new Runnable() {
                public void run() {
                    try {
                        String lookAndFeel = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
                        UIManager.setLookAndFeel(lookAndFeel);
                        ShopFrame frame = new ShopFrame();
                        frame.setVisible(true);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            });
        }
    
        /**
         * Create the frame.
         */
        public ShopFrame() {
    
            initData();
    
            setTitle("\u5728\u7EBF\u8D2D\u7269\u5E73\u53F0");
            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            setBounds(460, 240, 1000, 600);
            contentPane = new JPanel();
            contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
            setContentPane(contentPane);
            contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.Y_AXIS));
    
            JPanel UserAndShopping = new JPanel();
            UserAndShopping.setMaximumSize(new Dimension(1000, 355));
            UserAndShopping.setBorder(null);
            contentPane.add(UserAndShopping);
            UserAndShopping.setLayout(new BoxLayout(UserAndShopping, BoxLayout.X_AXIS));
    
            JPanel User = new JPanel();
            User.setBorder(null);
            User.setBackground(Color.BLUE);
            UserAndShopping.add(User);
            User.setLayout(new BoxLayout(User, BoxLayout.Y_AXIS));
    
            JPanel UserTitle = new JPanel();
            User.add(UserTitle);
            UserTitle.setLayout(new BoxLayout(UserTitle, BoxLayout.X_AXIS));
    
            Component horizontalGlue_4 = Box.createHorizontalGlue();
            UserTitle.add(horizontalGlue_4);
    
            JLabel userTitle_lbl = new JLabel("\u7528\u6237\u4FE1\u606F");
            userTitle_lbl.setFont(new Font("微软雅黑", Font.BOLD, 20));
            UserTitle.add(userTitle_lbl);
    
            Component horizontalGlue_5 = Box.createHorizontalGlue();
            UserTitle.add(horizontalGlue_5);
    
            JPanel PictrueAndInfo = new JPanel();
            User.add(PictrueAndInfo);
            PictrueAndInfo.setLayout(new BoxLayout(PictrueAndInfo, BoxLayout.X_AXIS));
    
            JPanel Picture = new JPanel();
            PictrueAndInfo.add(Picture);
            Picture.setLayout(new BoxLayout(Picture, BoxLayout.Y_AXIS));
    
            JPanel PictrueTitle = new JPanel();
            Picture.add(PictrueTitle);
            PictrueTitle.setLayout(new BoxLayout(PictrueTitle, BoxLayout.X_AXIS));
    
            JLabel pic_lbl = new JLabel("\u5934\u50CF");
            PictrueTitle.add(pic_lbl);
            pic_lbl.setFont(new Font("微软雅黑", Font.BOLD, 15));
    
            JPanel PictruePanel = new JPanel();
            PictruePanel.setBorder(new LineBorder(new Color(0, 0, 0)));
            PictruePanel.setBackground(Color.PINK);
            Picture.add(PictruePanel);
    
            
            
            PictruePanel.setLayout(new BoxLayout(PictruePanel, BoxLayout.Y_AXIS));
            PictruePanel.add(pic);
    
            JPanel PictrueButton = new JPanel();
            PictrueButton.setBorder(new EmptyBorder(5, 0, 0, 0));
            Picture.add(PictrueButton);
            PictrueButton.setLayout(new BoxLayout(PictrueButton, BoxLayout.X_AXIS));
    
            
            PictrueButton.add(pic_btn);
    
            JPanel UserInfo = new JPanel();
            UserInfo.setBorder(null);
            PictrueAndInfo.add(UserInfo);
            UserInfo.setLayout(new BoxLayout(UserInfo, BoxLayout.Y_AXIS));
    
            JPanel UserName = new JPanel();
            UserName.setBorder(new EmptyBorder(5, 5, 5, 5));
            UserInfo.add(UserName);
            UserName.setLayout(new BoxLayout(UserName, BoxLayout.X_AXIS));
    
            JLabel userName_lbl = new JLabel("\u7528\u6237\uFF1A");
            userName_lbl.setFont(new Font("微软雅黑", Font.BOLD, 13));
            UserName.add(userName_lbl);
    
            userName.setFont(new Font("微软雅黑", Font.PLAIN, 13));
            UserName.add(userName);
    
            Component horizontalGlue_6 = Box.createHorizontalGlue();
            UserName.add(horizontalGlue_6);
    
            logout_btn.addMouseListener(this);
            UserName.add(logout_btn);
    
            JPanel UserMoney = new JPanel();
            UserMoney.setBorder(new EmptyBorder(5, 5, 5, 5));
            UserInfo.add(UserMoney);
            UserMoney.setLayout(new BoxLayout(UserMoney, BoxLayout.X_AXIS));
    
            JLabel userMoney_lbl = new JLabel("\u4F59\u989D\uFF1A");
            userMoney_lbl.setFont(new Font("微软雅黑", Font.BOLD, 13));
            UserMoney.add(userMoney_lbl);
    
            userMoney.setFont(new Font("微软雅黑", Font.PLAIN, 13));
            UserMoney.add(userMoney);
    
            Component horizontalGlue_7 = Box.createHorizontalGlue();
            UserMoney.add(horizontalGlue_7);
    
            addMoney_btn.addMouseListener(this);
            UserMoney.add(addMoney_btn);
    
            JPanel UserPoint = new JPanel();
            UserPoint.setBorder(new EmptyBorder(5, 5, 5, 5));
            UserInfo.add(UserPoint);
            UserPoint.setLayout(new BoxLayout(UserPoint, BoxLayout.X_AXIS));
    
            JLabel userPoint_lbl = new JLabel("\u79EF\u5206\uFF1A");
            userPoint_lbl.setFont(new Font("微软雅黑", Font.BOLD, 13));
            UserPoint.add(userPoint_lbl);
    
            userPoint.setFont(new Font("微软雅黑", Font.PLAIN, 13));
            UserPoint.add(userPoint);
    
            Component horizontalGlue_8 = Box.createHorizontalGlue();
            UserPoint.add(horizontalGlue_8);
    
            JPanel Record = new JPanel();
            User.add(Record);
            Record.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
            
            JLabel lblNewLabel = new JLabel("\u7528\u6237\u8D2D\u7269\u8BB0\u5F55");
            lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 20));
            Record.add(lblNewLabel);
    
            // DefaultTableModel defaultTableModel = new DefaultTableModel();
            // defaultTableModel.addColumn("日期");
            // defaultTableModel.addColumn("金额");
            // defaultTableModel.addColumn("详细");
            // JButton button = new JButton("详细");
            // defaultTableModel.addRow(new Object[] {"2017-10-15", "1300", button});
            // table = new JTable(defaultTableModel);
            // panel_15.add(table);
    
            JPanel Shopping = new JPanel();
            Shopping.setMaximumSize(new Dimension(800, 355));
            UserAndShopping.add(Shopping);
            Shopping.setLayout(new BoxLayout(Shopping, BoxLayout.Y_AXIS));
    
            JPanel Search = new JPanel();
            Search.setBorder(new EmptyBorder(0, 0, 5, 0));
            Search.setMinimumSize(new Dimension(800, 40));
            Shopping.add(Search);
            Search.setLayout(new BoxLayout(Search, BoxLayout.X_AXIS));
    
            Component horizontalGlue = Box.createHorizontalGlue();
            Search.add(horizontalGlue);
    
            JLabel searchTitle_lbl = new JLabel("\u5546\u54C1\u9009\u62E9");
            searchTitle_lbl.setFont(new Font("微软雅黑", Font.BOLD, 18));
            Search.add(searchTitle_lbl);
    
            Component horizontalGlue_1 = Box.createHorizontalGlue();
            Search.add(horizontalGlue_1);
    
            searchKey = new JTextField();
            searchKey.setMaximumSize(new Dimension(200, 21));
            searchKey.setMinimumSize(new Dimension(200, 21));
            Search.add(searchKey);
            searchKey.setColumns(20);
    
            search_btn.addMouseListener(this);
            Search.add(search_btn);
    
            JScrollPane AllGoodsScroll = new JScrollPane();
            AllGoodsScroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
            Shopping.add(AllGoodsScroll);
            // AllGoodsScroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
            AllGoodsScroll.setMaximumSize(new Dimension(800, 300));
            AllGoodsScroll.setMinimumSize(new Dimension(800, 300));
            AllGoodsScroll.setViewportBorder(null);
    
            Goods commodity = new Goods();
            commodity.setId("123");
            commodity.setName("零食-小吃");
            commodity.setNums(2);
            commodity.setPath("./src/p3.png");
            commodity.setPrice(34.34);
    
            AllGoodsPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
            AllGoodsPanel.setMinimumSize(new Dimension(800, 300));
            AllGoodsScroll.setViewportView(AllGoodsPanel);
            AllGoodsPanel.setLayout(new GridLayout(0, 3, 5, 5));
    
            // if (goodPanelList != null) {
            // for (GoodPanel goodPanel : goodPanelList) {
            // AllGoodsPanel.add(goodPanel);
            // }
            // }
    
            JPanel ShoppingCart = new JPanel();
            contentPane.add(ShoppingCart);
            ShoppingCart.setLayout(new BoxLayout(ShoppingCart, BoxLayout.Y_AXIS));
    
            JPanel Details = new JPanel();
            Details.setBorder(new EmptyBorder(5, 0, 5, 0));
            Details.setMaximumSize(new Dimension(1000, 50));
            ShoppingCart.add(Details);
            Details.setLayout(new BoxLayout(Details, BoxLayout.X_AXIS));
    
            CalcTypeAndNums_lbl.setFont(new Font("微软雅黑", Font.PLAIN, 14));
            Details.add(CalcTypeAndNums_lbl);
    
            Component horizontalStrut = Box.createHorizontalStrut(20);
            Details.add(horizontalStrut);
    
            Details.add(buy_btn);
    
            Component horizontalStrut_1 = Box.createHorizontalStrut(20);
            Details.add(horizontalStrut_1);
    
            Details.add(clear_btn);
    
            Component horizontalGlue_3 = Box.createHorizontalGlue();
            Details.add(horizontalGlue_3);
    
            JLabel shoppingCartTitle_lbl = new JLabel("\u8D2D\u7269\u8F66");
            shoppingCartTitle_lbl.setFont(new Font("微软雅黑", Font.BOLD, 20));
            Details.add(shoppingCartTitle_lbl);
    
            Component horizontalGlue_2 = Box.createHorizontalGlue();
            Details.add(horizontalGlue_2);
    
            JScrollPane ShoppingCartScroll = new JScrollPane(); // 购物车的滑动面板
            ShoppingCart.add(ShoppingCartScroll);
            ShoppingCartScroll.setMinimumSize(new Dimension(1000, 175));
            ShoppingCartScroll.setMaximumSize(new Dimension(1000, 175));
            ShoppingCartScroll.setViewportView(ShoppingCartPanel);
    
            ShoppingCartPanel.setBorder(null);
            ShoppingCartPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 5, 5));
    
            // ShoppingCartScroll.removeAll();
    
        }
    
        private void initData() {
    
            initUser();
            initAllGoods();
            initShoppingCart();
        }
    
        private void initUser() {
            // 加载用户信息
            userName.setText(appData.getUser().getName());
            DecimalFormat decimalFormat = new DecimalFormat("0.00");
            userMoney.setText(String.valueOf(decimalFormat.format(appData.getUser().getMoney())));
            userPoint.setText(String.valueOf(appData.getUser().getPoint()));
            // 加载用户头像
            pic.setAlignmentX(Component.CENTER_ALIGNMENT);
            String defaultPath = "./data/pic/default.png";
            String picPath = "./data/pic/" + appData.getUser().getName() + ".png";
            ImageIcon icon;
            if (new File(picPath).exists()) {
                icon = new ImageIcon(picPath);
            } else {
                icon = new ImageIcon(defaultPath);
            }
            
            icon.setImage(icon.getImage().getScaledInstance(100, 100, Image.SCALE_DEFAULT));
            pic.setIcon(icon);
            
        }
    
        private void initAllGoods() {
            // 加载商品信息
            List<Goods> goodsList = appData.getGoodsList();
            AllGoodsPanel.removeAll();
            if (goodsList != null) {
                for (Goods goods : goodsList) {
                    AllGoodsPanel.add(new GoodPanel(goods, new GoodsAddListener(this, goods)));
                }
            }
        }
    
        private void initShoppingCart() {
    
            // 刷新两个按钮
            buy_btn.setText("购买");
            if (appData.getShoppingCart().isEmpty()) {
                buy_btn.setForeground(Color.GRAY);
                buy_btn.setEnabled(false);
                clear_btn.setEnabled(false);
            } else {
                buy_btn.setForeground(Color.BLACK);
                buy_btn.setEnabled(true);
                buy_btn.addMouseListener(this);
                clear_btn.setEnabled(true);
                clear_btn.addMouseListener(this);
            }
    
            // 刷新购物车信息
            Map<Goods, Integer> shoppingCart = appData.getShoppingCart();
            // System.out.println("购物车刷新");
            Set<Goods> goodsSet = shoppingCart.keySet();
            ShoppingCartPanel.removeAll();
            for (Goods goods : goodsSet) {
                int num = shoppingCart.get(goods);
                // System.out.println(goods.getName());
                // System.out.println(num);
                ShoppingCartPanel.add(new BuyPanel(goods, num, this));
            }
    
            // 刷新件数和总数
            int typeNum = goodsSet.size();
            int sumNum = 0;
            double sumPrice = 0;
            if (typeNum > 0) {
                for (Goods goods : goodsSet) {
                    sumNum += shoppingCart.get(goods);
                    sumPrice += goods.getPrice() * goods.getDiscount() * shoppingCart.get(goods);
                }
            }
            DecimalFormat decimalFormat = new DecimalFormat("0.00");
            CalcTypeAndNums_lbl.setText("总计：种类：" + typeNum + "，件数：" + sumNum + "，总价：" + decimalFormat.format(sumPrice));
    
        }
    
        private void initSearchGoods() {
            // 加载商品信息
            List<Goods> goodsList = appData.getGoodsList();
            String key = searchKey.getText();
            AllGoodsPanel.removeAll();
            if (goodsList != null) {
                for (Goods goods : goodsList) {
                    if (goods.getName().contains(key)) {
                        AllGoodsPanel.add(new GoodPanel(goods, new GoodsAddListener(this, goods)));
                    }
                }
            }
        }
    
        public void RefreshAllData() {
            this.invalidate();
    
            initUser();
            if (searchKey.getText().equals("")) {
                initAllGoods();
            } else {
                initSearchGoods();
            }
    
            initShoppingCart();
    
            this.validate();
    
        }
    
        public void RefreshSearchGoods() {
            this.invalidate();
            
            initSearchGoods();
            
            this.validate();
        }
    
        @Override
        public void mouseClicked(MouseEvent e) {
    
            // 搜索功能
            if (e.getSource() == search_btn) {
    
                if (searchKey.getText().equals("")) {
                    RefreshAllData();
                } else {
                    RefreshSearchGoods();
                }
    
            }
    
            // 注销功能
            if (e.getSource() == logout_btn) {
                // 保存所有数据
                appData.saveUser();
                appData.saveGoods();
                this.dispose();
                // 返回登录界面
                new LoginFrame().setVisible(true);
    
                return;
            }
            // 充值功能
            if (e.getSource() == addMoney_btn) {
    
                AddMoneyDialog dialog = new AddMoneyDialog(this);
                dialog.setModal(true);
                dialog.setVisible(true);
    
                this.RefreshAllData();
    
                // 保存所有数据
                appData.saveUser();
                appData.saveGoods();
                return;
            }
            // 清空购物车
            if (e.getSource() == clear_btn) {
    
                Map<Goods, Integer> shoppingCart = appData.getShoppingCart();
    
                shoppingCart.clear();
                // 刷新整个界面
                this.RefreshAllData();
    
                return;
    
            }
            // 结算功能
            if (e.getSource() == buy_btn) {
                // // 需要Dialog
                // BuyDialog buyDialog = new BuyDialog(this);
                // buyDialog.setModal(true);
                // buyDialog.setVisible(true);
    
                Map<Goods, Integer> shoppingCart = appData.getShoppingCart();
                List<Goods> goodsList = appData.getGoodsList();
                Set<Goods> goodsSet = shoppingCart.keySet();
                double sumPrice = 0;
                for (Goods buyGoods : goodsSet) {
                    sumPrice += (buyGoods.getPrice() * buyGoods.getDiscount() * shoppingCart.get(buyGoods));
                }
    
                User user = appData.getUser();
    
                if (user.getMoney() < sumPrice) {
                    buy_btn.setForeground(Color.red);
                    buy_btn.setText("钱不够");
    
                } else {
                    // 改变商品的件数
                    for (Goods buyGoods : goodsSet) {
                        for (Goods goods : goodsList) {
                            if (buyGoods == goods) {
                                int nums = goods.getNums();
                                goods.setNums(nums - shoppingCart.get(buyGoods));
                            }
                        }
                    }
                    // 改变用户钱数
                    user.setMoney(user.getMoney() - sumPrice);
                    user.setPoint(user.getPoint() + (int) (sumPrice / 10));
                    // 清空购物车
                    shoppingCart.clear();
    
                    // this.dispose();
                    // 刷新主页面的数据
                    this.RefreshAllData();
    
                    // 保存所有数据
                    appData.saveUser();
                    appData.saveGoods();
                }
                return;
    
            }
    
        }
    
        @Override
        public void mousePressed(MouseEvent e) {
            // TODO Auto-generated method stub
    
        }
    
        @Override
        public void mouseReleased(MouseEvent e) {
            // TODO Auto-generated method stub
    
        }
    
        @Override
        public void mouseEntered(MouseEvent e) {
            // TODO Auto-generated method stub
    
        }
    
        @Override
        public void mouseExited(MouseEvent e) {
            // TODO Auto-generated method stub
    
        }
    
    }

## 项目总结 ##

开发一套系统，最重要的是细心，并不是一定要做到面面俱到，在准备工作中要正确分析社会需求了解现实应用，画出流程图，把大体框架做好，然后再逐一细化。我们不可能做到面面俱到，但一定要做到步步扎实，作为一个程序编程人员，要保持清醒的头脑，以现实为依据，让自己的每一行代码都能实现自己的意义。通过这次项目开发，我收获的不仅仅是课程上的知识得到实际应用，还有编程的基本习惯和开发系统时应注意的流程。

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