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Java Bean 应用-预定构件（Inber 原创）

王朝java/jsp·作者佚名 2006-01-09

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概述：这是两个Java bean应用的例子，实现航空预定机票的功能。

预定构件功能说明：

1，预定构件应包含二个面板，预定座位面板与乘客面板

2，在装入预定构件时不应有可用的乘客面板

3，当用户打入要预定的旅行地点.旅行日期及座位号时：

(1)首先，应按以下格式生成乘客号：<place of travel> <date of travel> <count of the seat number>

(2)其次，在显示乘客号时应使乘客面板是可见的（注意：你可能重定BeanBox窗口中bean大小，以观看此乘客面板。而且，如果打入座位号为0，则不应显示乘客面板。）

(3)当用户点击乘客面板的submit按钮时，此面板的所有域控件中文本应置为空

(4)上面步骤被重复，直到所接收的乘客材料个数等于预定的座位数为止

4，在已预定了所需座位号之后，给出所预定座位号的消息框应被显示d

5,乘客面板应作为bean创建，可以把嵌入在铁路预定应用或航空应用中

6，你需接受以下格式之一的旅行日期"dd/mm/yy","mm/dd/yy","dd-Month-yy"

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/*1

* Program file: PsEvent.java

* Creat time: 08/01/2004

* Creat by: InberKong

* Last Modify time:

* Modify by:

* Function describe: Event Class

import java.util.*;

public class PsEvent extends EventObject

{

public String number;

public String name;

public String address;

public String phone;

public PsEvent(Object source,String m1,String m2,String m3,String m4)

{

super(source);

this.number=m1;

this.name=m2;

this.address=m3;

this.phone=m4;

}

------------------

/*2

* Program file: PsEventListener.java

* Creat time: 08/01/2004

* Creat by: InberKong

* Last Modify time:

* Modify by:

* Function describe: Event listener

import java.util.*;

public interface PsEventListener extends EventListener

{

public void psPerformed(PsEvent ev);

}

---------------------------

/*3

* Program file: PsBean.java

* Creat time: 08/01/2004

* Creat by: InberKong

* Last Modify time:

* Modify by:

* Function describe: Passenger message bean

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class PsBean extends JPanel implements ActionListener

{

JLabel lb_number;

JLabel lb_name;

JLabel lb_address;

JLabel lb_phone;

JTextField tf_number;

JTextField tf_name;

JTextField tf_address;

JTextField tf_phone;

JButton sbmt;

PsEventListener pl;//声明事件监听

public PsBean()

{

setLayout(new GridLayout(5,2));//设置布局管理器

lb_number=new JLabel("Passenger Number:");//创建对象

lb_name=new JLabel("Passenger Name:");

lb_address=new JLabel("Passenger Address:");

lb_phone=new JLabel("Passenger Phone:");

tf_number=new JTextField(15);

tf_name=new JTextField(15);

tf_address=new JTextField(25);

tf_phone=new JTextField(15);

sbmt=new JButton("Submit");

add(lb_number);

add(tf_number);

add(lb_name);

add(tf_name);

add(lb_address);

add(tf_address);

add(lb_phone);

add(tf_phone);

add(sbmt);

sbmt.addActionListener(this);//监听事件

tf_number.setEnabled(false);

}

public void actionPerformed(ActionEvent evt)

{

Object obj=evt.getSource();

if(obj==sbmt)

{

PsEvent ev=new PsEvent(obj,tf_number.getText(),tf_name.getText(),tf_address.getText(),tf_phone.getText());

pl.psPerformed(ev);

}

public void PsListener(PsEventListener el)

{

pl=el;

}

public void setPnrno(String ptemp)

{

tf_number.setText(ptemp);

}

public void refresh()

{

tf_number.setText("");

tf_name.setText("");

tf_address.setText("");

tf_phone.setText("");

}

---------------------

/*4

* Program file: Bpanel.java

* Creat time: 08/01/2004

* Creat by: InberKong

* Last Modify time:

* Modify by:

* Function describe: Book panel bean

import java.beans.*;

import javax.swing.*;

import java.awt.event.*;

import java.awt.*;

public class Bpanel extends JPanel implements PsEventListener,ActionListener

{

JPanel pnl;

BoxLayout blo;

JLabel label_Date;

JTextField text_Date;

JLabel label_Place;

JTextField text_Place;

JLabel label_NOS;

JTextField text_NOS;

JButton button_Book;

JLabel the_animation;

String bank_Name="FlyMyWay Airlines";

GridBagLayout gl_t;

GridBagConstraints gbcs;

//乘客面板javabean

PsBean pb;

int t_nos;

int t_count;

String t_passno;

//Date format property with getter and setter methods

private String the_datFormat="mm/dd/yy";

public String getDatFormat()

{

return the_datFormat;

}

public void setDatFormat(String temps)

{

the_datFormat=temps;

if(the_datFormat=="mm/dd/yy")

text_Date.setText("mm/dd/yy");

if(the_datFormat=="dd/mm/yy")

text_Date.setText("dd/mm/yy");

if(the_datFormat=="dd-Month-yy")

text_Date.setText("dd-Month-yy");

}

public Bpanel()

{

pnl=new JPanel();

the_animation=new JLabel(bank_Name);

label_Date=new JLabel("Enter Date of Travel:");

text_Date=new JTextField(20);

text_Date.setText(the_datFormat);

label_Place=new JLabel("Enter Place of Travel:");

text_Place=new JTextField(15);

label_NOS=new JLabel("Enter Number of seats to be booked");

text_NOS=new JTextField(5);

button_Book=new JButton("BOOK SEATS");

gl_t=new GridBagLayout();

gbcs=new GridBagConstraints();

pnl.setLayout(gl_t);

gbcs.gridx=3;

gbcs.gridy=10;