comprehenquery.java

功能齐全的航班订票系统,可以完成查询,修改,订航班,记录信息等多项功能.

package flight.query;

import flight.assist.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.sql.*;

public class ComprehenQuery extends JPanel implements ActionListener,ItemListener
{
	   //A bean used to connect to the database and execute SQL operation
	static SqlBean sqlBean = new SqlBean();
	
	   //*********************************************************************
	   //Model for the place combobox
    private static DefaultComboBoxModel modelPlace = new DefaultComboBoxModel();   
       //Model for the airfirm combobox
    private static DefaultComboBoxModel modelAirFirm = new DefaultComboBoxModel();
       //Items for the year combobox
    private static Object[] year = {"2004","2005"};
       //Items for the month combobox
 	private static Object[] month = {"1","2","3","4","5","6","7","8","9","10","11","12"};
 	   //Items for the day combobox
 	private static Object[] day = {"1","2","3","4","5","6","7","8","9","10","11","12",
 	                               "13","14","15","16","17","18","19","20","21","22",
 	                               "23","24","25","26","27","28","29","30","31"}; 	                        
 	                         	
 	private  static JComboBox jcbStart = new JComboBox(),jcbFirstArrive = new JComboBox(),
 	                          jcbArrive = new JComboBox(),jcbAirFirm = new JComboBox(modelAirFirm),
 	                          jcbYear1 = new JComboBox(year),jcbYear2 = new JComboBox(year),
 	                          jcbMonth2 = new JComboBox(month),jcbMonth1 = new JComboBox(month),
 	                          jcbDay1 = new JComboBox(day),jcbDay2 = new JComboBox(day);
 	   //*********************************************************************
 	                   
 	private JRadioButton jrbSingle = new JRadioButton("单程",true),
 	                     jrbDouble = new JRadioButton("往返",false),
 	                     jrbMutiple = new JRadioButton("联程",false);
 	   
 	   //The program should change the content in the label dynamically,
 	   //so we should put the JLabels as the menber varibles 
 	   //so that we can change their contents in every method of this class
 	private JLabel jlStart,jlFirstArrive,jlArrive,
 	               jlTime1,jlTime2,jlAirFirm,
 	               jlReplaceArrive,jlReplaceTime;
 	                   
       //The program should remove and add components into the framework dynamically
       //according to the query mode you have selected!
       //So we should put the JPanels as the menber varibles 
 	   //so that we can remove and add components in the panels in every method of this class
    private JPanel jpFirstArriveBox,jpTime2Box,jpReplaceArrive,jpArrive1,jpReplaceTime,jpTime2; 
       
    private JButton jbQuery = new JButton("查询");
    
       //Used to the items choosed from each combobox
    private String start,firstArrive,arrive,leaveWeek,leaveWeek2,backWeek,airFirm,
                   leaveYear,leaveMonth,leaveDay,backYear,backMonth,backDay,
                   leaveYear2,leaveMonth2,leaveDay2;
      
       //Setup GUI in the Constructor method
    public ComprehenQuery()
    {   
        jcbAirFirm.addItem("所有");
        jcbAirFirm.setSelectedItem("所有");
    
           //Make the time combobox show the present time when you first the program 	
    	setDisplayPresentTime();
    	
    	   //*********************************************************************
    	
    	JPanel jp1 = new JPanel();
    	jp1.add(jrbSingle);
    	JPanel jp2 = new JPanel();
    	jp2.add(jrbDouble);
    	JPanel jp3 = new JPanel();
    	jp3.add(jrbMutiple);    	
    	
    	JPanel jpRadioButton = new JPanel();
    	jpRadioButton.setLayout(new GridLayout(5,1)); 
    	jpRadioButton.add(new JLabel("       "));   	
    	jpRadioButton.add(jp1);
    	jpRadioButton.add(jp2);
    	jpRadioButton.add(jp3);
    	jpRadioButton.add(new JLabel("       "));
    	
    	ButtonGroup bg = new ButtonGroup();
    	bg.add(jrbSingle);
    	bg.add(jrbDouble);
    	bg.add(jrbMutiple);
    	
    	   //*********************************************************************
    	
    	JPanel jpStart = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpStart.add(jlStart = new JLabel("        出发城市:"));
    	
    	JPanel jpFirstArrive = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpFirstArrive.add(jlFirstArrive = new JLabel("                "));
    	
    	JPanel jpArrive = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpArrive.add(jlArrive = new JLabel("        到达城市:"));
    	
    	JPanel jpTime1Tip = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpTime1Tip.add(jlTime1 = new JLabel("        出发日期:"));
    	
    	JPanel jpTime2Tip = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpTime2Tip.add(jlTime2 = new JLabel("              "));
    	
    	JPanel jpAirFirm = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    	jpAirFirm.add(jlAirFirm = new JLabel("       航空公司:"));
    	
    	JPanel jpLabels = new JPanel();
    	jpLabels.setLayout(new GridLayout(7,1));    	
    	jpLabels.add(jpStart);
    	jpLabels.add(jpFirstArrive);
    	jpLabels.add(jpArrive);
    	jpLabels.add(jpTime1Tip);
    	jpLabels.add(jpTime2Tip);
    	jpLabels.add(jpAirFirm);
    	jpLabels.add(new JLabel("            "));
    	
    	   //*********************************************************************
    	            
        JPanel jpStartBox = new JPanel(new FlowLayout(FlowLayout.LEFT));
        jpStartBox.add(jcbStart);
        
           //***********************
           //The combobox "jcbFirstArrive" should be removed from and added into the 
           //jpFirstArriveBox dynamically,
           //so create a panel contains an empty label that used to replace 
           //the panel that contains the combobox "jcbFirstArrive" when we don't need it
        jpReplaceArrive = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpReplaceArrive.add(jlReplaceArrive = new JLabel("            "));
    	
    	jpArrive1 = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpArrive1.add(jcbFirstArrive);
    	
        jpFirstArriveBox = new JPanel(new FlowLayout(FlowLayout.LEFT,0,0));
    	jpFirstArriveBox.add(jpReplaceArrive);
    	   //***********************    	   
    	  
    	JPanel jpArriveBox = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpArriveBox.add(jcbArrive);
    	
    	JPanel jpTime1Box = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpTime1Box.add(jcbYear1);
    	jpTime1Box.add(jcbMonth1);
    	jpTime1Box.add(jcbDay1);
    	
    	   //***********************
    	   //The comboboxes "jcbYear2,jcbMonth2,jcbDay2" should be removed from 
    	   //and added into the jpTime2Box dynamically,
    	   //so create a panel contains an empty label that used to replace
           //the panel that contains the comboboxes "jcbYear2,jcbMonth2,jcbDay2"
    	jpReplaceTime = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpReplaceTime.add(jlReplaceTime = new JLabel("            ")); 
    	
    	jpTime2 = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpTime2.add(jcbYear2);
    	jpTime2.add(jcbMonth2);
    	jpTime2.add(jcbDay2);
    	
    	jpTime2Box = new JPanel(new FlowLayout(FlowLayout.LEFT,0,0));
    	jpTime2Box.add(jpReplaceTime); 
    	  	//***********************    	  	 	
    	    
    	JPanel jpAirFirmBox = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpAirFirmBox.add(jcbAirFirm);
    	
    	JPanel jpButton = new JPanel(new FlowLayout(FlowLayout.LEFT));
    	jpButton.add(jbQuery);
    	
    	JPanel jpComboBox = new JPanel();
    	jpComboBox.setLayout(new GridLayout(7,1));    
    	jpComboBox.add(jpStartBox);
    	jpComboBox.add(jpFirstArriveBox);
    	jpComboBox.add(jpArriveBox);
    	jpComboBox.add(jpTime1Box);
    	jpComboBox.add(jpTime2Box);
    	jpComboBox.add(jpAirFirmBox);
    	jpComboBox.add(jpButton);
    	
    	    //*********************************************************************
        
        JPanel jpQuery = new JPanel();
        jpQuery.setLayout(new BorderLayout());
        jpQuery.add(jpLabels,BorderLayout.WEST);
        jpQuery.add(jpComboBox,BorderLayout.CENTER);
        
        JPanel jpDown = new JPanel();
        jpDown.setLayout(new BorderLayout());
        jpDown.add(jpRadioButton,BorderLayout.WEST);
        jpDown.add(jpQuery,BorderLayout.CENTER);
        
        JLabel jlTitle = new JLabel("综合查询");
        jlTitle.setHorizontalAlignment(JLabel.CENTER);
        jlTitle.setFont(new Font("Tims",Font.BOLD,23));
        this.setLayout(new BorderLayout());
        this.add(jlTitle,BorderLayout.NORTH);
        this.add(jpDown,BorderLayout.CENTER);;
        
           //Add listener to the radio buttons 
           //RadioListener is an inner class which define below
        jrbSingle.addActionListener(new RadioListener());
        jrbDouble.addActionListener(new RadioListener());
        jrbMutiple.addActionListener(new RadioListener());
        
           //Add listener to the time comboboxes
        jcbYear1.addItemListener(this);
        jcbYear2.addItemListener(this);
        jcbMonth1.addItemListener(this);
        jcbMonth2.addItemListener(this);
        
           //Add listener to the query button
        jbQuery.addActionListener(this);    	
    }
    
    public static void updatePlaceComboBox(String newPlace,int insertOrDelete)
    {
    	if (insertOrDelete == 1)
    	{
    		if (modelPlace.getIndexOf(newPlace) == -1)
    		{
	    		modelPlace.addElement(newPlace);
	    		jcbStart.addItem(newPlace);	
	    		jcbFirstArrive.addItem(newPlace);	
	    		jcbArrive.addItem(newPlace);	
    		}
	    	
    	}
    	else if (insertOrDelete == 2)
    	{
    		if (modelPlace.getIndexOf(newPlace) != -1)
    		{
	    		modelPlace.removeElement(newPlace);
	    		jcbStart.removeItem(newPlace);
	    		jcbFirstArrive.removeItem(newPlace);
	    		jcbArrive.removeItem(newPlace);	
    		}    		
    	}   	
    }
    
    public static void updateAirFirmComboBox(String newAirFirm,int insertOrDelete)
    {
    	if (insertOrDelete == 1)
    	{
    		if (modelAirFirm.getIndexOf(newAirFirm) == -1)
    		   jcbAirFirm.addItem(newAirFirm);
    	}
    	   
    	else if (insertOrDelete == 2)
    	{
    		if (modelAirFirm.getIndexOf(newAirFirm) != -1)
	    	   jcbAirFirm.removeItem(newAirFirm);
    	}
    	   
    }
    
       //The method that makes the time combobox show the present time
       //when you first the program 
    public void setDisplayPresentTime()
    {
    	   //Get the instance for the class Calendar which used to get the present time
    	Calendar cal = Calendar.getInstance();
    	
    	   //Because there are two Date classes(java.util.Date--java.sql.Date)
    	   //So we should designate the full name for the java.util.Date class 
    	cal.setTime(new java.util.Date());
    	
    	   //Get the present year,month,day
    	String year = String.valueOf(cal.get(Calendar.YEAR));
    	String month = String.valueOf(cal.get(Calendar.MONTH) + 1);
    	String day = String.valueOf(cal.get(Calendar.DAY_OF_MONTH));
    	
    	   //Make the time combobox show the present time
    	jcbYear1.setSelectedItem(year);
    	jcbYear2.setSelectedItem(year);
    	jcbMonth1.setSelectedItem(month);
    	jcbMonth2.setSelectedItem(month);
    	
    	   //We should change the items in the day combobox dynamically
    	   //according to the year and month
    	updateDay(year,month,jcbDay1);
    	updateDay(year,month,jcbDay2);    	
    	
    	jcbDay1.setSelectedItem(day);
    	jcbDay2.setSelectedItem(day);    	
    }
    
       //The method which used to change the items in the day combobox dynamically
       //according to the year and month
    private void updateDay(String year,String month,JComboBox jcb)
    {
    	   //There are 30 days in the months 4,6,9,11
    	if (month.equals("4") || month.equals("6") || month.equals("9") || month.equals("11"))    	   
    	{
    		   //jcb.getItemCount() == 31 means that there are 31 days in the day combobox,
    		   //but exactly it is 30 days,so we should remove the 31st day from the day combobox
    		if (jcb.getItemCount() == 31)
    		   jcb.removeItem("31");	
    		else if(jcb.getItemCount() == 29)    		
    		   jcb.addItem("30");    	
    		else if (jcb.getItemCount() == 28)
    		{
    			jcb.addItem("29");
    			jcb.addItem("30");
    		}    	
    	}
    	   //There are 28 or 29 days in the month 2
    	else if (month.equals("2"))
    	{
    		int years = Integer.parseInt(year);
    		
    		   //The year is leap year
    		if ( (years % 400 == 0) || (years %4 == 0 && years % 100 != 0))
    		{
    			if (jcb.getItemCount() == 31)
    			{
    				jcb.removeItem("30");
    			    jcb.removeItem("31");    		    			
    			}
    			else if (jcb.getItemCount() == 30)
    			{