orderframe.java

一个很详细的航空售票系统开发的例子

package com.tarena.abs.client;

import java.awt.*;
import javax.swing.*;

import java.awt.event.*;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Iterator;

import com.tarena.abs.model.*;

/**
 * 显示当前订单的窗口，包含所有订单项信息。
 * @author new
 *
 */
public class OrderFrame extends JFrame implements ActionListener{
	/**
	 * 
	 */
	private static final long serialVersionUID = 4204688393435975469L;
	private JPanel center,south;
	private JButton orderButton;
	private JButton cancelButton;
	private JLabel label;
	private Order order;
	
	public OrderFrame(){
		super("当前订单");
		center=new JPanel();
		south=new JPanel();
		orderButton=new JButton("出票");
		cancelButton=new JButton("取消");
		label=new JLabel("");
		label.setForeground(Color.RED);
		south.add(orderButton);
		south.add(cancelButton);
		south.add(label);
		this.add(center,BorderLayout.CENTER);
		this.add(south,BorderLayout.SOUTH);
		orderButton.addActionListener(this);
		cancelButton.addActionListener(this);
	}
	
	public void addOrderItem(OrderItemPanel panel){
		order.addItem(panel.getItem());
		center.add(panel);
		label.setText("当前订单项："+order.getSize()+",总金额："+order.getAllPrice());
		this.setVisible(true);
	}
	
	public void removeOrderItem(OrderItemPanel panel){
		order.removeItem(panel.getItem());
		center.remove(panel);
		label.setText("当前订单项："+order.getSize()+",总金额："+order.getAllPrice());
		this.repaint();
	}
	
	public void showMe(){
		this.setSize(600,600);
		this.setVisible(true);
		this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
	}
	
	public void setOrder(Order order){
		this.order=order;
	}
	
	public void actionPerformed(ActionEvent e) {
		if(e.getActionCommand().equals("出票")){
			//自己实现的代码
			Object o = new Object();
			synchronized(o){
//				创建一个请求对象，该请求的类型为登录请求
				Request req=new Request("order");
				try {
					req.setData("Order", ClientMainClass.currentUser.getName());
					//将请求对象写往服务器
					ClientMainClass.oos.writeObject(req);
					ClientMainClass.oos.flush();

					//将订单对象写往服务器
					ClientMainClass.oos.writeObject(order);
					ClientMainClass.oos.flush();
					Agent agent = (Agent)ClientMainClass.ois.readObject();
					if(agent != null){
						JOptionPane.showMessageDialog(this, "出票成功！");
						ClientMainClass.currentUser = agent;
						ClientMainClass.clientFrame.dispose();
						ClientMainClass.clientFrame = new ClientMainFrame();
						ClientMainClass.clientFrame.showMe();
						ClientMainClass.currentOrderFrame=null;
						this.dispose();
						//把信息写入ticket.txt文件中
						ArrayList a = order.getItems();
						PrintWriter pw = new PrintWriter(new FileOutputStream("./ticket.txt",true));
						@SuppressWarnings("unused")
						Calendar c = new GregorianCalendar();
						pw.println("\n"+c.toString());
						pw.flush();
						for (Iterator iter = a.iterator(); iter.hasNext();) {
							OrderItem element = (OrderItem) iter.next();
								pw.println(element.toString());
								pw.flush();
						}
						pw.close();
					}else{
						JOptionPane.showMessageDialog(this,"出票失败！");
						ClientMainClass.currentOrderFrame=null;
						this.dispose();
					}
				} catch (IOException e1) {
					e1.printStackTrace();
				} catch (ClassNotFoundException e1) {
					e1.printStackTrace();
				}			
			}

		}
		if(e.getActionCommand().equals("取消")){
			ClientMainClass.currentOrderFrame=null;
			this.dispose();
			return;
		}
	}
}