点菜系统数据库课程设计
Posted wust_ouyangli
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import java.awt.*; import java.sql.*; import java.awt.event.*; import java.util.Vector; import javax.swing.*; import java.sql.*; import javax.swing.border.EmptyBorder; public class test1 extends JFrame implements ActionListener { //private static final String = null; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { test1 frame = new test1(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } int orderid=0; public test1() { setTitle("点菜系统"); setSize(600,600); //设置窗口大小 setLocation(100,100); //设置窗口的位置 ImageIcon image = new ImageIcon("Image/huanyingguanglin.PNG"); image.setImage(image.getImage().getScaledInstance(600,530,Image.SCALE_DEFAULT)); // 把背景图片显示在一个标签里面 JLabel label = new JLabel(image); // 把标签的大小位置设置为图片刚好填充整个面板 label.setBounds(0, 0, this.getWidth(), this.getHeight()); // 把内容窗格转化为JPanel，否则不能用方法setOpaque()来使内容窗格透明 JPanel imagePanel = (JPanel) this.getContentPane(); imagePanel.setOpaque(false); // 把背景图片添加到分层窗格的最底层作为背景 this.getLayeredPane().add(label, new Integer(Integer.MIN_VALUE)); JButton jb=new JButton(); jb.addActionListener(this); //增加监听 jb.setActionCommand("Welcome"); //监听信号 jb.setPreferredSize(new Dimension(250,50)); jb.setFont(new Font("宋体",Font.BOLD,20)); jb.setText("欢迎顾客点击进入菜单"); JPanel jp=new JPanel(); jp.setOpaque(false); jp.setLayout(new GridBagLayout()); GridBagConstraints c=new GridBagConstraints(); c.fill=GridBagConstraints.NONE; c.gridx=0; c.gridy=0; c.insets=new Insets(300,0,50,50); jp.add(jb,c); jb=new JButton(); jb.addActionListener(this); jb.setActionCommand("Close"); jb.setPreferredSize(new Dimension(250,50)); jb.setFont(new Font("宋体",Font.BOLD,20)); jb.setText("取消订单退出系统"); c=new GridBagConstraints(); c.fill=GridBagConstraints.NONE; c.gridx=1; c.gridy=0; c.insets=new Insets(300,0,50,50); jp.add(jb,c); this.add(jp); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); //是否显示 } public void actionPerformed(ActionEvent e) { try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; if(e.getActionCommand()=="Welcome") { ps=conn.prepareStatement("select count(*) from OrderDish"); ResultSet re=ps.executeQuery(); while(re.next()) orderid=re.getInt(1); orderid++; ps=conn.prepareStatement("insert into OrderDish values(?,0)"); ps.setInt(1, orderid); ps.executeUpdate(); OrderDish order=new OrderDish(this,"菜单",true,orderid); //新的对话界面 } else if(e.getActionCommand()=="Close") { ps=conn.prepareStatement("delete from OrderItem where orderid=?"); ps.setInt(1, orderid); ps.executeUpdate(); ps=conn.prepareStatement("delete from OrderDish where orderid=?"); ps.setInt(1, orderid); ps.executeUpdate(); this.dispose(); } } catch(Exception exp){ exp.printStackTrace(); } } } class OrderDish extends JDialog implements ActionListener { JPanel[] jp={null,null,null,null}; JTabbedPane jtp=null; JButton but=null; JPanel topPane=null,bottomPane=null,pane=null; JPanel[] zhushi={null,null,null,null,null,null,null,null,null,null}; JLabel lab=null; JCheckBox[] zhushicheck={null,null,null,null,null,null,null,null,null}; JCheckBox[] sushicheck={null,null,null,null,null,null,null,null}; JCheckBox[] xiaochicheck={null,null,null,null,null,null}; JCheckBox[] yinpincheck={null,null,null,null,null,null}; JComboBox[] zhushicombo={null,null,null,null,null,null,null,null,null}; JComboBox[] sushicombo={null,null,null,null,null,null,null,null}; JComboBox[] xiaochicombo={null,null,null,null,null,null}; JComboBox[] yinpincombo={null,null,null,null,null,null}; ImageIcon image=null; JScrollPane[] jsp={null,null,null,null}; String[] zhushiAL={ "zhushi0","zhushi1","zhushi2","zhushi3","zhushi4","zhushi5","zhushi6","zhushi7","zhushi8" }; String[] sushiAL={ "sushi0","sushi1","sushi2","sushi3","sushi4","sushi5","sushi6","sushi7" }; String[] xiaochiAL={ "xiaochi0","xiaochi1","xiaochi2","xiaochi3","xiaochi4","xiaochi5" }; String[] yinpinAL={ "yinpin0","yinpin1","yinpin2","yinpin3","yinpin4","yinpin5" }; String[] zhushinumAL={ "zhushinum0","zhushinum1","zhushinum2","zhushinum3","zhushinum4","zhushinum5","zhushinum6","zhushinum7","zhushinum8" }; String[] sushinumAL={ "sushinum0","sushinum1","sushinum2","sushinum3","sushinum4","sushinum5","sushinum6","sushinum7" }; String[] xiaochinumAL={ "xiaochinum0","xiaochinum1","xiaochinum2","xiaochinum3","xiaochinum4","xiaochinum5" }; String[] yinpinnumAL={ "yinpinnum0","yinpinnum1","yinpinnum2","yinpinnum3","yinpinnum4","yinpinnum5" }; int orderid=0,zhushinum=9,sushinum=8,xiaochinum=6,yinpinnum=6; OrderDish(Frame a,String b,boolean c,int oid) { super(a,b,c); orderid=oid; this.setTitle("菜单"); this.setSize(600,600); this.setLocation(200,100); //右上角碗碟图片 image = new ImageIcon("Image/碗碟.PNG"); image.setImage(image.getImage().getScaledInstance(300,100,Image.SCALE_DEFAULT)); lab=new JLabel(image); //左上角查看当前订单按钮 but=new JButton(); but.setForeground(Color.RED); but.setFont(new Font("宋体",Font.BOLD,25)); but.setText("点击查看当前订单"); but.setBackground(Color.WHITE); but.setPreferredSize(new Dimension(280,90)); but.addActionListener(this); but.setActionCommand("ViewOrder"); //点击查看当前订单监听器 pane=new JPanel(); pane.setBackground(Color.WHITE); pane.add(but); //上部分面板 topPane=new JPanel(); topPane.setLayout(new GridLayout(1,2)); topPane.add(pane); topPane.add(lab); this.add(topPane,BorderLayout.NORTH); //四个选项卡面板 jp[0]=new JPanel(); jp[1]=new JPanel(); jp[2]=new JPanel(); jp[3]=new JPanel(); //给第0个面板添加内容 jp[0].setLayout(new GridLayout(3,3,10,10)); for(int i=0;i<zhushinum;i++) zhushi[i]=new JPanel(); //多个面板存放不同的菜 String[] num={"1","2","3","4","5"}; String[] zhushiname={"水煮肉片 20元/份 ", "农家小炒肉 19元/份", "回锅牛肉 28元/份", "红烧鱼块 24元/份", "干烧刁子鱼 24元/份", "干锅手撕鸡 22元/份", "香菇焖鸡 26元/份", "四季豆牛肚丝 26元/份", "鱼香肉丝 19元/份"}; String[] zhushitp={ "Image/shuizhuroupian.PNG","Image/nongjiaxiaochaorou.PNG","Image/huiguoniurou.PNG", "Image/hongshaoyukuai.PNG","Image/ganshaodiaoziyu.PNG","Image/ganguoshousiji.PNG", "Image/xianggumenji.PNG","Image/sijidouniudusi.PNG","Image/yuxiangrousi.PNG" }; //给每个菜的面板添加内容 for(int i=0;i<zhushinum;i++) { bottomPane=new JPanel(); bottomPane.setLayout(new GridLayout(2,1)); zhushicheck[i]=new JCheckBox("选中"); zhushicheck[i].addActionListener(this); zhushicheck[i].setActionCommand(zhushiAL[i]); //增加监听器 lab=new JLabel(zhushiname[i]); bottomPane.add(lab); zhushicombo[i]=new JComboBox(num); //下拉列表框 zhushicombo[i].setSelectedIndex(0); //设置默认为1(第0个数) zhushicombo[i].addActionListener(this); zhushicombo[i].setActionCommand(zhushinumAL[i]); lab=new JLabel("份"); pane=new JPanel(); pane.add(zhushicheck[i]); pane.add(zhushicombo[i]); pane.add(lab); bottomPane.add(pane); image= new ImageIcon(zhushitp[i]); image.setImage(image.getImage().getScaledInstance(180,120,Image.SCALE_DEFAULT)); lab=new JLabel(image); zhushi[i].add(lab,BorderLayout.CENTER); zhushi[i].add(bottomPane,BorderLayout.SOUTH); } //把所有菜的面板加入到大面板中去 for(int i=0;i<zhushinum;i++) jp[0].add(zhushi[i]); jp[0].setPreferredSize(new Dimension(560,600)); jsp[0]=new JScrollPane(jp[0]); //给第1个面板添加内容 String[] sushiname={ "酸辣土豆丝 12元/份","番茄炒蛋 13元/份","豆角炒茄子 13元/份", "麻婆豆腐 12元/份","手撕包菜 10元/份","小炒香干 13元/份", "小炒千叶豆腐 16元/份","口味黑木耳 16元/份" }; String[] sushitp={ "sushi/suanlatudousi.PNG","sushi/fanqiechaodan.PNG","sushi/doujiaochaoqiezi.PNG", "sushi/mapodoufu.PNG","sushi/shousibaocai.PNG","sushi/xiaochaoxianggan.PNG", "sushi/xiaochaoqianyedoufu.PNG","sushi/kouweiheimuer.PNG" }; jp[1].setLayout(new GridLayout(3,3,10,10)); for(int i=0;i<sushinum;i++) zhushi[i]=new JPanel(); //多个面板存放不同的菜 //给每个菜的面板添加内容 for(int i=0;i<sushinum;i++) { bottomPane=new JPanel(); bottomPane.setLayout(new GridLayout(2,1)); sushicheck[i]=new JCheckBox("选中"); sushicheck[i].addActionListener(this); sushicheck[i].setActionCommand(sushiAL[i]); //增加监听器 lab=new JLabel(sushiname[i]); bottomPane.add(lab); sushicombo[i]=new JComboBox(num); //下拉列表框 sushicombo[i].setSelectedIndex(0); //设置默认为1(第0个数) sushicombo[i].addActionListener(this); sushicombo[i].setActionCommand(sushinumAL[i]); lab=new JLabel("份"); pane=new JPanel(); pane.add(sushicheck[i]); pane.add(sushicombo[i]); pane.add(lab); bottomPane.add(pane); image= new ImageIcon(sushitp[i]); image.setImage(image.getImage().getScaledInstance(180,120,Image.SCALE_DEFAULT)); lab=new JLabel(image); zhushi[i].add(lab,BorderLayout.CENTER); zhushi[i].add(bottomPane,BorderLayout.SOUTH); } for(int i=0;i<sushinum;i++) jp[1].add(zhushi[i]); jp[1].setPreferredSize(new Dimension(560,600)); jsp[1]=new JScrollPane(jp[1]); //给第2个面板添加内容 String[] xiaochiname={ "鸡米花 10元/份","无骨鸡柳 10元/份","骨肉相连 10元/份", "薯条 8元/份","川香鸡柳 10元/份","香酥鸡块 15元/份" }; String[] xiaochitp={ "xiaochi/jimihua.PNG","xiaochi/wugujiliu.PNG","xiaochi/gurouxianglian.PNG", "xiaochi/shutiao.PNG","xiaochi/chuanxiangjiliu.PNG","xiaochi/xiangsujikuai.PNG" }; jp[2].setLayout(new GridLayout(2,3,10,10)); for(int i=0;i<xiaochinum;i++) zhushi[i]=new JPanel(); //多个面板存放不同的菜 //给每个菜的面板添加内容 for(int i=0;i<xiaochinum;i++) { bottomPane=new JPanel(); bottomPane.setLayout(new GridLayout(2,1)); xiaochicheck[i]=new JCheckBox("选中"); xiaochicheck[i].addActionListener(this); xiaochicheck[i].setActionCommand(xiaochiAL[i]); //增加监听器 lab=new JLabel(xiaochiname[i]); bottomPane.add(lab); xiaochicombo[i]=new JComboBox(num); //下拉列表框 xiaochicombo[i].setSelectedIndex(0); //设置默认为1(第0个数) xiaochicombo[i].addActionListener(this); xiaochicombo[i].setActionCommand(xiaochinumAL[i]); lab=new JLabel("份"); pane=new JPanel(); pane.add(xiaochicheck[i]); pane.add(xiaochicombo[i]); pane.add(lab); bottomPane.add(pane); image= new ImageIcon(xiaochitp[i]); image.setImage(image.getImage().getScaledInstance(180,120,Image.SCALE_DEFAULT)); lab=new JLabel(image); zhushi[i].add(lab,BorderLayout.CENTER); zhushi[i].add(bottomPane,BorderLayout.SOUTH); } for(int i=0;i<xiaochinum;i++) jp[2].add(zhushi[i]); jp[2].setPreferredSize(new Dimension(560,400)); jsp[2]=new JScrollPane(jp[2]); //给第3个面板添加内容 String[] yinpinname={ "红豆奶茶 10元/份","芒果奶昔 10元/份","蜜桃奶昔 10元/份", "姜母茶 15元/份","原味奶茶 10元/份","咖啡奶茶 10元/份" }; String[] yinpintp={ "yinpin/hongdounaicha.PNG","yinpin/mangguonaixi.PNG","yinpin/mitaonaixi.PNG", "yinpin/jiangmucha.PNG","yinpin/yuanweinaicha.PNG","yinpin/kafeinaicha.PNG" }; jp[3].setLayout(new GridLayout(2,3,10,10)); for(int i=0;i<yinpinnum;i++) zhushi[i]=new JPanel(); //多个面板存放不同的菜 //给每个菜的面板添加内容 for(int i=0;i<yinpinnum;i++) { bottomPane=new JPanel(); bottomPane.setLayout(new GridLayout(2,1)); yinpincheck[i]=new JCheckBox("选中"); yinpincheck[i].addActionListener(this); yinpincheck[i].setActionCommand(yinpinAL[i]); //增加监听器 lab=new JLabel(yinpinname[i]); bottomPane.add(lab); yinpincombo[i]=new JComboBox(num); //下拉列表框 yinpincombo[i].setSelectedIndex(0); //设置默认为1(第0个数) yinpincombo[i].addActionListener(this); yinpincombo[i].setActionCommand(yinpinnumAL[i]); lab=new JLabel("份"); pane=new JPanel(); pane.add(yinpincheck[i]); pane.add(yinpincombo[i]); pane.add(lab); bottomPane.add(pane); image= new ImageIcon(yinpintp[i]); image.setImage(image.getImage().getScaledInstance(180,120,Image.SCALE_DEFAULT)); lab=new JLabel(image); zhushi[i].add(lab,BorderLayout.CENTER); zhushi[i].add(bottomPane,BorderLayout.SOUTH); } //把所有菜的面板加入到大面板中去 for(int i=0;i<yinpinnum;i++) jp[3].add(zhushi[i]); jp[3].setPreferredSize(new Dimension(560,400)); jsp[3]=new JScrollPane(jp[3]); jtp=new JTabbedPane(); jtp.add("主食",jsp[0]); jtp.add("素食",jsp[1]); jtp.add("小吃",jsp[2]); jtp.add("饮品",jsp[3]); this.add(jtp,BorderLayout.CENTER); JPanel bottomPane=new JPanel(); but=new JButton(); but.setFont(new Font("宋体",Font.BOLD,20)); but.setText(" 前往结账 "); but.addActionListener(this); but.setActionCommand("jiezhang"); bottomPane.add(but); but=new JButton(); but.setFont(new Font("宋体",Font.BOLD,20)); but.setText(" 重新选菜 "); but.addActionListener(this); but.setActionCommand("chongxuan"); bottomPane.add(but); but=new JButton(); but.setFont(new Font("宋体",Font.BOLD,20)); but.setText(" 返回 "); but.addActionListener(this); but.setActionCommand("Close"); bottomPane.add(but); this.add(bottomPane,BorderLayout.SOUTH); setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); setVisible(true); //是否显示 } public int Getzhushi(String s) { for(int i=0;i<zhushinum;i++) if(s==zhushiAL[i]) return i; return -1; } public int Getzhushinum(String s) { for(int i=0;i<zhushinum;i++) if(s==zhushinumAL[i]) return i; return -1; } public int Getsushi(String s) { for(int i=0;i<sushinum;i++) if(s==sushiAL[i]) return i; return -1; } public int Getsushinum(String s) { for(int i=0;i<sushinum;i++) if(s==sushinumAL[i]) return i; return -1; } public int Getxiaochi(String s) { for(int i=0;i<xiaochinum;i++) if(s==xiaochiAL[i]) return i; return -1; } public int Getxiaochinum(String s) { for(int i=0;i<xiaochinum;i++) if(s==xiaochinumAL[i]) return i; return -1; } public int Getyinpin(String s) { for(int i=0;i<yinpinnum;i++) if(s==yinpinAL[i]) return i; return -1; } public int Getyinpinnum(String s) { for(int i=0;i<yinpinnum;i++) if(s==yinpinnumAL[i]) return i; return -1; } public void actionPerformed(ActionEvent e) { if(e.getActionCommand()=="Close") this.dispose(); //关闭窗口 else if(e.getActionCommand()=="jiezhang") { Check ck=new Check(this,"结账",true,orderid); }//产生结账窗口 else if(e.getActionCommand()=="chongxuan") { //把所有的选择取消,并删除数据库中所有选菜内容 for(int i=0;i<zhushinum;i++) { if(zhushicheck[i].isSelected()) zhushicheck[i].setSelected(false); zhushicombo[i].setSelectedIndex(0); } for(int i=0;i<sushinum;i++) { if(sushicheck[i].isSelected()) sushicheck[i].setSelected(false); zhushicombo[i].setSelectedIndex(0); } for(int i=0;i<xiaochinum;i++) { if(xiaochicheck[i].isSelected()) xiaochicheck[i].setSelected(false); xiaochicombo[i].setSelectedIndex(0); } for(int i=0;i<yinpinnum;i++) { if(yinpincheck[i].isSelected()) yinpincheck[i].setSelected(false); yinpincombo[i].setSelectedIndex(0); } try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; ps=conn.prepareStatement("delete from OrderItem where orderid=?"); ps.setInt(1, orderid); ps.executeUpdate(); } catch(Exception exp) { exp.printStackTrace(); } return; } else if(e.getActionCommand()=="ViewOrder"){ View view=new View(this,"当前订单",true,orderid); } else { try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; int a=Getzhushi(e.getActionCommand()); if(a!=-1) { if(zhushicheck[a].isSelected()) { ps=conn.prepareStatement("insert into OrderItem values(?,?,?)"); ps.setInt(1,orderid); ps.setString(2, zhushiAL[a]); int num=zhushicombo[a].getSelectedIndex()+1; ps.setInt(3, num); ps.executeUpdate(); } else { ps=conn.prepareStatement("delete from OrderItem where orderid=? and id=?"); ps.setInt(1, orderid); ps.setString(2, zhushiAL[a]); ps.executeUpdate(); } return; } a=Getsushi(e.getActionCommand()); if(a!=-1) { if(sushicheck[a].isSelected()) { ps=conn.prepareStatement("insert into OrderItem values(?,?,?)"); ps.setInt(1,orderid); ps.setString(2, sushiAL[a]); int num=sushicombo[a].getSelectedIndex()+1; ps.setInt(3, num); ps.executeUpdate(); } else { ps=conn.prepareStatement("delete from OrderItem where orderid=? and id=?"); ps.setInt(1, orderid); ps.setString(2, sushiAL[a]); ps.executeUpdate(); } return; } a=Getxiaochi(e.getActionCommand()); if(a!=-1) { if(xiaochicheck[a].isSelected()) { ps=conn.prepareStatement("insert into OrderItem values(?,?,?)"); ps.setInt(1,orderid); ps.setString(2, xiaochiAL[a]); int num=xiaochicombo[a].getSelectedIndex()+1; ps.setInt(3, num); ps.executeUpdate(); } else { ps=conn.prepareStatement("delete from OrderItem where orderid=? and id=?"); ps.setInt(1, orderid); ps.setString(2, xiaochiAL[a]); ps.executeUpdate(); } return; } a=Getyinpin(e.getActionCommand()); if(a!=-1) { if(yinpincheck[a].isSelected()) { ps=conn.prepareStatement("insert into OrderItem values(?,?,?)"); ps.setInt(1,orderid); ps.setString(2, yinpinAL[a]); int num=yinpincombo[a].getSelectedIndex()+1; ps.setInt(3, num); ps.executeUpdate(); } else { ps=conn.prepareStatement("delete from OrderItem where orderid=? and id=?"); ps.setInt(1, orderid); ps.setString(2, yinpinAL[a]); ps.executeUpdate(); } return; } a=Getzhushinum(e.getActionCommand()); if(a!=-1) { if(zhushicheck[a].isSelected()) { ps=conn.prepareStatement("update OrderItem set num=? where orderid=? and id=?"); int num=zhushicombo[a].getSelectedIndex()+1; ps.setInt(1, num); ps.setInt(2, orderid); ps.setString(3, zhushiAL[a]); ps.executeUpdate(); } } a=Getsushinum(e.getActionCommand()); if(a!=-1) { if(sushicheck[a].isSelected()) { ps=conn.prepareStatement("update OrderItem set num=? where orderid=? and id=?"); int num=sushicombo[a].getSelectedIndex()+1; ps.setInt(1, num); ps.setInt(2, orderid); ps.setString(3, sushiAL[a]); ps.executeUpdate(); } } a=Getxiaochinum(e.getActionCommand()); if(a!=-1) { if(xiaochicheck[a].isSelected()) { ps=conn.prepareStatement("update OrderItem set num=? where orderid=? and id=?"); int num=xiaochicombo[a].getSelectedIndex()+1; ps.setInt(1, num); ps.setInt(2, orderid); ps.setString(3, xiaochiAL[a]); ps.executeUpdate(); } } a=Getyinpinnum(e.getActionCommand()); if(a!=-1) { if(yinpincheck[a].isSelected()) { ps=conn.prepareStatement("update OrderItem set num=? where orderid=? and id=?"); int num=yinpincombo[a].getSelectedIndex()+1; ps.setInt(1, num); ps.setInt(2, orderid); ps.setString(3, yinpinAL[a]); ps.executeUpdate(); } } } catch(Exception exp) { exp.printStackTrace(); } } } } class View extends JDialog implements ActionListener { JScrollPane[] jsp={null,null,null,null,null}; int orderid=0; View(JDialog a,String b,boolean c,int oid) { super(a,b,c); orderid=oid; this.setSize(600,600); this.setLocation(300,100); //连接数据库把选菜信息显示出来 JTabbedPane jtp=new JTabbedPane(); String[] sql={ "select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id", "select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id and Dish.id like ‘zhushi%‘", "select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id and Dish.id like ‘sushi%‘", "select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id and Dish.id like ‘xiaochi%‘", "select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id and Dish.id like ‘yinpin%‘" }; try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; for(int i=0;i<5;i++) { Vector ziduan=new Vector(); ziduan.add("菜名"); ziduan.add("单价"); ziduan.add("数量"); Vector jilu=new Vector(); //集合类 //这里就要连接数据库把信息显示出来 ps=conn.prepareStatement(sql[i]); ps.setInt(1, orderid); ResultSet re=ps.executeQuery(); while(re.next()) { String name=re.getString(1); String price =String.format("%d", re.getInt(2)); String num=String.format("%d", re.getInt(3)); Vector v=new Vector(); v.add(name); v.add(price); v.add(num); jilu.add(v); } JTable tab=new JTable(jilu,ziduan);//JTable是表格,里面的参数是先记录后字段 tab.setFont(new Font("楷体",Font.BOLD,20)); tab.setBackground(Color.CYAN); tab.setRowHeight(30); jsp[i]=new JScrollPane(tab); //滚动条 } } catch(Exception exp) { exp.printStackTrace(); } jtp.add("所有",jsp[0]); jtp.add("主食",jsp[1]); jtp.add("素食",jsp[2]); jtp.add("小吃",jsp[3]); jtp.add("饮品",jsp[4]); this.add(jtp,BorderLayout.CENTER); JButton but=new JButton(); but.setFont(new Font("宋体",Font.BOLD,20)); but.setText(" 返回 "); but.addActionListener(this); but.setActionCommand("exit"); JPanel pane=new JPanel(); pane.add(but,BorderLayout.CENTER); this.add(pane,BorderLayout.SOUTH); setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); setVisible(true); //是否显示 } public void actionPerformed(ActionEvent e) { if(e.getActionCommand()=="exit") { this.dispose(); } } } class Check extends JDialog implements ActionListener { JButton[] jb={null,null}; int orderid=0,sum=0; Check(JDialog a,String b,boolean c,int oid) { super(a,b,c); orderid=oid; this.setTitle("结账"); this.setSize(600,600); this.setLocation(300,100); //连接数据库把所有选菜信息显示出来 Vector ziduan=new Vector(); ziduan.add("菜名"); ziduan.add("单价"); ziduan.add("数量"); Vector jilu=new Vector(); //连接数据库得到信息 try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; ps=conn.prepareStatement("select name,price,num from Dish,OrderItem where orderid=? and OrderItem.id=Dish.id"); ps.setInt(1, orderid); ResultSet re=ps.executeQuery(); while(re.next()) { String name=re.getString(1); int p=re.getInt(2); int t=re.getInt(3); sum+=p*t; String price =String.format("%d", p); String num=String.format("%d", t); Vector v=new Vector(); v.add(name); v.add(price); v.add(num); jilu.add(v); } } catch(Exception exp) { exp.printStackTrace(); } //加总价标签 JLabel lab=new JLabel(); lab.setFont(new Font("宋体",Font.BOLD,20)); lab.setText("总计 "+sum+"元"); lab.setHorizontalAlignment(JLabel.CENTER); this.add(lab,BorderLayout.NORTH); //加表格记录 JTable tab=new JTable(jilu,ziduan);//JTable是表格,里面的参数是先记录后字段 tab.setFont(new Font("楷体",Font.BOLD,20)); tab.setBackground(Color.CYAN); tab.setRowHeight(30); JScrollPane jsp=new JScrollPane(tab); //滚动条 this.add(jsp,BorderLayout.CENTER); //加按钮 jb[0]=new JButton(); jb[0].setFont(new Font("宋体",Font.BOLD,20)); jb[0].setText(" 确认支付 "); jb[0].addActionListener(this); jb[0].setActionCommand("Pay"); jb[1]=new JButton(); jb[1].setFont(new Font("宋体",Font.BOLD,20)); jb[1].setText(" 返回 "); jb[1].addActionListener(this); jb[1].setActionCommand("Close"); JPanel bottomPane=new JPanel(); bottomPane.add(jb[0]); bottomPane.add(jb[1]); this.add(bottomPane,BorderLayout.SOUTH); setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); setVisible(true); //是否显示 } public void actionPerformed(ActionEvent e) { // if(e.getActionCommand()=="Close") { this.dispose(); } else if(e.getActionCommand()=="Pay") { try { String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; ps=conn.prepareStatement("update OrderDish set money=? where orderid=?"); ps.setInt(1, sum); ps.setInt(2, orderid); ps.executeUpdate(); } catch(Exception exp) { exp.printStackTrace(); } Pay pay=new Pay(this,"支付",true); } } } class Pay extends JDialog implements ActionListener { JTabbedPane jtp=null; JButton jb=null; JPanel bottomPane=null; JLabel[] jl={null,null,null,null}; ImageIcon image=null; Pay(JDialog a,String b,boolean c) { super(a,b,c); this.setSize(600,600); this.setLocation(400,100); image= new ImageIcon("Image/zhifubao.PNG"); image.setImage(image.getImage().getScaledInstance(600,500,Image.SCALE_DEFAULT)); jl[0]=new JLabel(image); image= new ImageIcon("Image/weixin.PNG"); image.setImage(image.getImage().getScaledInstance(600,500,Image.SCALE_DEFAULT)); jl[1]=new JLabel(image); image= new ImageIcon("Image/wangyin.PNG"); image.setImage(image.getImage().getScaledInstance(600,500,Image.SCALE_DEFAULT)); jl[2]=new JLabel(image); image= new ImageIcon("Image/xianjing.PNG"); image.setImage(image.getImage().getScaledInstance(600,500,Image.SCALE_DEFAULT)); jl[3]=new JLabel(image); jtp=new JTabbedPane(); jtp.add("支付宝支付",jl[0]); jtp.add(" 微信支付 ",jl[1]); jtp.add(" 网银支付 ",jl[2]); jtp.add(" 现金支付 ",jl[3]); this.add(jtp,BorderLayout.CENTER); jb=new JButton(); jb.setFont(new Font("宋体",Font.BOLD,20)); jb.setText(" 完成退出 "); jb.addActionListener(this); jb.setActionCommand("exit"); bottomPane=new JPanel(); bottomPane.add(jb); this.add(bottomPane,BorderLayout.SOUTH); setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); setVisible(true); } public void actionPerformed(ActionEvent e) { if(e.getActionCommand()=="exit") { this.dispose(); } } }
需要添加n多图片，加载连接mysql的驱动器
数据库建表
CREATE TABLE OrderDish ( orderid int not null, money int, primary key(orderid) ); CREATE TABLE Dish ( id varchar(20) not null, name nchar(10), price int, type nchar(10), primary key(id) ); insert into Dish values(‘zhushi0‘,‘水煮肉片‘,20,‘主食‘); insert into Dish values(‘zhushi1‘,‘农家小炒肉‘,19,‘主食‘); insert into Dish values(‘zhushi2‘,‘回锅牛肉‘,28,‘主食‘); insert into Dish values(‘zhushi3‘,‘红烧鱼块‘,24,‘主食‘); insert into Dish values(‘zhushi4‘,‘干烧刁子鱼‘,24,‘主食‘); insert into Dish values(‘zhushi5‘,‘干锅手撕鸡‘,22,‘主食‘); insert into Dish values(‘zhushi6‘,‘香菇焖鸡‘,26,‘主食‘); insert into Dish values(‘zhushi7‘,‘四季豆牛肚丝‘,26,‘主食‘); insert into Dish values(‘zhushi8‘,‘鱼香肉丝‘,19,‘主食‘); insert into Dish values(‘sushi0‘,‘酸辣土豆丝‘,12,‘素食‘); insert into Dish values(‘sushi1‘,‘番茄炒蛋‘,13,‘素食‘); insert into Dish values(‘sushi2‘,‘豆角炒茄子‘,13,‘素食‘); insert into Dish values(‘sushi3‘,‘麻婆豆腐‘,12,‘素食‘); insert into Dish values(‘sushi4‘,‘手撕包菜‘,10,‘素食‘); insert into Dish values(‘sushi5‘,‘小炒香干‘,13,‘素食‘); insert into Dish values(‘sushi6‘,‘小炒千叶豆腐‘,16,‘素食‘); insert into Dish values(‘sushi7‘,‘口味黑木耳‘,16,‘素食‘); insert into Dish values(‘xiaochi0‘,‘鸡米花‘,10,‘小吃‘); insert into Dish values(‘xiaochi1‘,‘无骨鸡柳‘,10,‘小吃‘); insert into Dish values(‘xiaochi2‘,‘骨肉相连‘,10,‘小吃‘); insert into Dish values(‘xiaochi3‘,‘薯条‘,8,‘小吃‘); insert into Dish values(‘xiaochi4‘,‘川香鸡柳‘,10,‘小吃‘); insert into Dish values(‘xiaochi5‘,‘香酥鸡块‘,15,‘小吃‘); insert into Dish values(‘yinpin0‘,‘红豆奶茶‘,10,‘饮品‘); insert into Dish values(‘yinpin1‘,‘芒果奶昔‘,10,‘饮品‘); insert into Dish values(‘yinpin2‘,‘蜜桃奶昔‘,10,‘饮品‘); insert into Dish values(‘yinpin3‘,‘姜母茶‘,15,‘饮品‘); insert into Dish values(‘yinpin4‘,‘原味奶茶‘,10,‘饮品‘); insert into Dish values(‘yinpin5‘,‘咖啡奶茶‘,10,‘饮品‘); CREATE TABLE OrderItem ( orderid int not null, id varchar(20) not null, num int, primary key(orderid,id), foreign key(orderid) references OrderDish(orderid), foreign key(id) references Dish(id) ); drop table OrderItem; drop table Dish; drop table OrderDish; try { } catch(Exception exp) { exp.printStackTrace(); } String url = "jdbc:mysql://localhost:3306/test" ; //下面几行都是模板 String user = "root" ; String password = "" ; Class.forName("com.mysql.jdbc.Driver"); Connection conn=DriverManager.getConnection(url, user, password); PreparedStatement ps=null; ps=conn.prepareStatement("select count(*) from OrderDish"); ResultSet re=ps.executeQuery();
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