Java案例水果超市管理系统

package Fruit.view; import javax.swing.*; import javax.swing.border.EmptyBorder; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.awt.Font; import javax.swing.table.DefaultTableModel; import Fruit.dao.DatabaseAlter; import Fruit.domain.Fruit; @SuppressWarnings("serial") public class MainView extends JFrame { private JPanel contentPane; private JTextField fruitId2; private JTextField fruitname2; private JTextField fruitPrice2; private JTextField fruitUnit2; private JScrollPane scrollPane; private JTable table; public MainView() { setTitle("\u8D85\u5E02\u8D27\u7269\u7BA1\u7406\u7CFB\u7EDF"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 910, 602); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); JLabel label = new JLabel("\u6C34\u679C\u7F16\u53F7"); label.setBounds(96, 405, 81, 21); contentPane.add(label); JLabel label_1 = new JLabel("\u6C34\u679C\u540D\u79F0"); label_1.setBounds(225, 405, 81, 21); contentPane.add(label_1); JLabel label_2 = new JLabel("\u6C34\u679C\u5355\u4EF7"); label_2.setBounds(357, 405, 81, 21); contentPane.add(label_2); JLabel label_3 = new JLabel("\u8BA1\u4EF7\u5355\u4F4D"); label_3.setBounds(484, 405, 81, 21); contentPane.add(label_3); JButton addFruit = new JButton("\u6DFB\u52A0\u6C34\u679C"); addFruit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { addit(e); } }); addFruit.setBounds(676, 397, 123, 29); contentPane.add(addFruit); JButton delFruit = new JButton("\u5220\u9664\u6C34\u679C"); delFruit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { delit(e); } }); delFruit.setBounds(676, 442, 123, 29); contentPane.add(delFruit); JButton alterFruit = new JButton("\u4FEE\u6539\u6C34\u679C"); alterFruit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { alterit(e); } }); alterFruit.setBounds(676, 489, 123, 29); contentPane.add(alterFruit); fruitId2 = new JTextField(); fruitId2.setBounds(96, 448, 96, 27); contentPane.add(fruitId2); fruitId2.setColumns(10); fruitname2 = new JTextField(); fruitname2.setBounds(225, 448, 96, 27); contentPane.add(fruitname2); fruitname2.setColumns(10); fruitPrice2 = new JTextField(); fruitPrice2.setBounds(357, 448, 96, 27); contentPane.add(fruitPrice2); fruitPrice2.setColumns(10); fruitUnit2 = new JTextField(); fruitUnit2.setBounds(484, 448, 96, 27); contentPane.add(fruitUnit2); fruitUnit2.setColumns(10); JLabel label_4 = new JLabel("\u6C34\u679C\u5217\u8868"); label_4.setFont(new Font("宋体", Font.PLAIN, 22)); label_4.setBounds(405, 11, 152, 35); contentPane.add(label_4); scrollPane = new JScrollPane(); scrollPane.setEnabled(false); scrollPane.setBounds(98, 61, 701, 328); contentPane.add(scrollPane); reflash(scrollPane, table); } private static void reflash(JScrollPane scrollPane,JTable table) { //创建与刷新表格 table = new JTable(); table.setModel( new DefaultTableModel( DatabaseAlter.select(),new String[] {"水果编号", "水果名称", "水果单价", "计价标准"}) { boolean[] columnEditables = new boolean[] { false, false, false, false }; public boolean isCellEditable(int row, int column) { return columnEditables[column]; } }); scrollPane.setViewportView(table); } protected void alterit(ActionEvent e) { //修改水果 if(fruitId2.getText() != null && fruitname2.getText() != null && fruitPrice2.getText() != null && fruitUnit2.getText() != null) { if(DatabaseAlter.alter(new Fruit(fruitId2.getText(), fruitname2.getText(),fruitPrice2.getText(),fruitUnit2.getText())) == false) new InputError().setVisible(true); } MainView.reflash(scrollPane, table); } protected void delit(ActionEvent e) { //删除水果 if(fruitId2.getText() != null) { if(DatabaseAlter.del(new Fruit(fruitId2.getText(),"0","0","0")) == false) new InputError().setVisible(true); } MainView.reflash(scrollPane, table); } protected void addit(ActionEvent e) { //添加水果 if(fruitId2.getText() != null && fruitname2.getText() != null && fruitPrice2.getText() != null && fruitUnit2.getText() != null) { if(DatabaseAlter.add(new Fruit(fruitId2.getText(), fruitname2.getText(),fruitPrice2.getText(),fruitUnit2.getText()))==false) new InputError().setVisible(true); } MainView.reflash(scrollPane, table); } }