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);
//
}
}
上面代码得出如下图：
