酒店管理系统之台号界面（swing）
package com.mwq.frame.manage;import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.util.Vector;import javax.swing.JButton;import javax.swing.JDialog;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.JTextField;import javax.swing.table.DefaultTableModel;import com.mwq.dao.Dao;import com.mwq.dao.JDBC;import com.mwq.mwing.MTable;import com.mwq.tool.Validate;public class DeskNumDialog extends JDialog {private JTable table;private JTextField seatingTextField;private JTextField numTextField;private final Vector columnNameV = new Vector();private final DefaultTableModel tableModel = new DefaultTableModel();private final Dao dao = Dao.getInstance();private JTable openedDeskTable;/** * Launch the application * * @param args */public static void main(String args[]) {try {DeskNumDialog dialog = new DeskNumDialog(null);dialog.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {System.exit(0);}});dialog.setVisible(true);} catch (Exception e) {e.printStackTrace();}}/** * Create the dialog */public DeskNumDialog(JTable rightTable) {super();setModal(true);getContentPane().setLayout(new BorderLayout());setResizable(false);setTitle("台号管理");setBounds(100, 100, 500, 375);this.openedDeskTable = rightTable;final JPanel operatePanel = new JPanel();getContentPane().add(operatePanel, BorderLayout.NORTH);final JLabel numLabel = new JLabel();operatePanel.add(numLabel);numLabel.setText("台 号：");numTextField = new JTextField();numTextField.setColumns(6);operatePanel.add(numTextField);final JLabel seatingLabel = new JLabel();operatePanel.add(seatingLabel);seatingLabel.setText(" 座位数：");seatingTextField = new JTextField();seatingTextField.setColumns(5);operatePanel.add(seatingTextField);final JLabel topPlaceholderLabel = new JLabel();topPlaceholderLabel.setPreferredSize(new Dimension(20, 40));operatePanel.add(topPlaceholderLabel);final JButton addButton = new JButton();//创建添加台号按钮对象addButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {String num = numTextField.getText().trim();// 获取台号，并去掉首尾空格String seating = seatingTextField.getText().trim();// 获取座位数，并去掉首尾空格if (num.equals("") || seating.equals("")) {// 查看用户是否输入了台号和座位数JOptionPane.showMessageDialog(null, "请输入台号和座位数！", "友情提示",JOptionPane.INFORMATION_MESSAGE);return;}if (num.length() > 5) {// 查看台号的长度是否超过了5位JOptionPane.showMessageDialog(null, "台号最多只能为5个字符！", "友情提示",JOptionPane.INFORMATION_MESSAGE);numTextField.requestFocus();// 为台号文本框请求获得焦点return;}if (!Validate.execute("[1-9]{1}([0-9]{0,1})", seating)) {// 验证座位数是否在1——19之间String[] infos = { "座位数输入错误！", "座位数必须在 1——99 之间！" };JOptionPane.showMessageDialog(null, infos, "友情提示",JOptionPane.INFORMATION_MESSAGE);seatingTextField.requestFocus();// 为座位数文本框请求获得焦点return;}if (dao.sDeskByNum(num) != null) {// 查看该台号是否已经存在JOptionPane.showMessageDialog(null, "该台号已经存在！", "友情提示",JOptionPane.INFORMATION_MESSAGE);numTextField.requestFocus();// 为台号文本框请求获得焦点return;}int row = table.getRowCount();// 获得当前拥有台号的个数Vector newDeskNumV = new Vector();// 创建一个代表新台号的向量newDeskNumV.add(new Integer(row + 1));// 添加添加序号newDeskNumV.add(num);// 添加台号newDeskNumV.add(seating);// 添加座位数tableModel.addRow(newDeskNumV);// 将新台号信息添加到表格中table.setRowSelectionInterval(row, row);// 设置新添加的台号为选中的numTextField.setText(null);// 将台号文本框设置为空seatingTextField.setText(null);// 将座位数文本框设置为空//dao.iDesk(num, seating);// 将新添加的台号信息保存到数据库中JDBC.closeConnection();// 关闭数据库连接}});addButton.setText("添加");operatePanel.add(addButton);final JButton delButton = new JButton();//创建删除台号按钮对象delButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {int selectedRow = table.getSelectedRow();// 获得选中的餐台if (selectedRow == -1) {// 未选中任何餐台JOptionPane.showMessageDialog(null, "请选择要删除的餐台！", "友情提示",JOptionPane.INFORMATION_MESSAGE);} else {String deskNum = table.getValueAt(selectedRow, 1).toString();// 获得选中餐台的编号for (int row = 0; row < openedDeskTable.getRowCount(); row++) {// 查看该餐台是否正在被使用if (deskNum.equals(openedDeskTable.getValueAt(row, 1))) {JOptionPane.showMessageDialog(null,"该餐台正在使用，不能删除！", "友情提示",JOptionPane.INFORMATION_MESSAGE);return;// 该餐台正在被使用，不能删除，返回}}String infos[] = new String[] {// 组织确认信息"确定要删除餐台："," 台 号：" + deskNum," 座位数："+ table.getValueAt(selectedRow, 2).toString() };int i = JOptionPane.showConfirmDialog(null, infos, "友情提示",JOptionPane.YES_NO_OPTION);// 弹出确认提示if (i == 0) {// 确认删除dao.dDeskByNum(deskNum);// 从数据库中删除tableModel.setDataVector(dao.sDesk(), columnNameV);// 刷新表格int rowCount = table.getRowCount();// 获得删除后拥有的餐台数if (rowCount > 0) {// 还拥有餐台if (selectedRow == rowCount)// 删除的为最后一个餐台selectedRow -= 1;// 将选中的餐台前移一行table.setRowSelectionInterval(selectedRow,selectedRow);// 设置当前选中的餐台}JDBC.closeConnection();// 关闭数据库连接}}}});delButton.setText("删除");operatePanel.add(delButton);final JScrollPane scrollPane = new JScrollPane();getContentPane().add(scrollPane);String columnNames[] = new String[] { "序 号", "台 号", "座位数" };for (int i = 0; i < columnNames.length; i++) {columnNameV.add(columnNames[i]);}tableModel.setDataVector(dao.sDesk(), columnNameV);JDBC.closeConnection();table = new MTable(tableModel);if (table.getRowCount() > 0)// 获得拥有的餐台数table.setRowSelectionInterval(0, 0);// 设置当前选中的餐台scrollPane.setViewportView(table);final JLabel leftPlaceholderLabel = new JLabel();leftPlaceholderLabel.setPreferredSize(new Dimension(20, 20));getContentPane().add(leftPlaceholderLabel, BorderLayout.WEST);final JPanel exitPanel = new JPanel();final FlowLayout flowLayout = new FlowLayout();flowLayout.setAlignment(FlowLayout.RIGHT);exitPanel.setLayout(flowLayout);getContentPane().add(exitPanel, BorderLayout.SOUTH);final JButton exitButton = new JButton();exitPanel.add(exitButton);exitButton.setText("退出");exitButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {dispose();}});final JLabel bottomPlaceholderLabel = new JLabel();bottomPlaceholderLabel.setPreferredSize(new Dimension(10, 40));exitPanel.add(bottomPlaceholderLabel);final JLabel rightPlaceholderLabel = new JLabel();rightPlaceholderLabel.setPreferredSize(new Dimension(20, 20));getContentPane().add(rightPlaceholderLabel, BorderLayout.EAST);//}}