expenselist.java

手机在线系统 采用Java 中的J2ME, JSP 跟MySql 运行环境是：jsdk1.4以上

/**
 * @(#)ExpenseList.java	1.11 01/08/23
 * Copyright (c) 2004-2005 wuhua of workroom Inc. All Rights Reserved.
 * @version 	1.0, 10/05/2004
 * @author 	饶荣庆
 * @author 	余煜辉
 */

package com.j2me.football.football_lottery;

import com.j2me.football.*;
import com.j2me.language.*;
import com.j2me.common.*;
import java.io.*;
import javax.microedition.lcdui.*;

/**
 *此类是足球彩票投注的咨询各种费用的菜单类
 */
public class ExpenseList extends List implements CommandListener
{
	/*显示类*/
	private Display display = null;

	/*足球彩票菜单类*/
	public LotteryList lottery = null;

	/*显示信息类*/
	public LotteryInfoForm l_E_F;

	/*错误类*/
	private Alert errorAlert = null;

	/*软键类*/
	private Command backCommand = null;
	private Command okCommand = null;

	public Image[] icon = { createImage("/icon/phone.png"),createImage("/icon/football.png"),
		                    createImage("/icon/english.png")};

	public ExpenseList()
	{
		super("咨费菜单", List.IMPLICIT);    //继承超类，并设置属性为当选择是当前操作的项目在命令初始化时被选中
		append("竟猜费用", icon[0]);
		append("信息费用", icon[1]);
		append("咨询专家费用", icon[2]);
		errorAlert  = new Alert("ERROR", "连接网络失败 ", null, AlertType.ERROR);
		errorAlert.setTimeout(1000);
		this.backCommand = new Command("返回", Command.BACK, 2);
		this.okCommand = new Command("确定", Command.OK, 2);
		this.addCommand(backCommand);
		this.addCommand(okCommand);
		this.setCommandListener(this);
	}

	/*
	 *显示菜单界面方法
	 */
	public void showForm(Display display, LotteryList lottery)	//用来显示界面
	{		
		this.display = display;
	   	this.lottery = lottery;
		this.display.setCurrent(this);
	}
    
	/**
	 *定义创建菜单图片
     */
	private Image createImage(String name)	 
	{
		Image aImage =null;
        try
		{ 
			aImage = Image.createImage(name);
		}
		catch(Exception e)
		{
			System.out.println("不能找到图标.");
		}
        return aImage;
     }

	/**
	 *初始化
	 */
	private String getHtml(String URLString)
	{
		String html = "";
		/* Thread t = new Thread() 
		{   				 				 
			public void run() 
			{ */
			try
			{	
				
				//获得服务器用户保存的内容
			    html = ConnectHttp.invokeJSP(URLString);
				
				//处理HTML标记语言
				html = DisposeHTML.getBody(html);	
			}
			catch(IOException e)
			{
			    this.display.setCurrent(errorAlert);
				System.out.println(e);
			}
		/* }						
		};
	   t.start();*/	  //启动线程让它进行连网	
	   
	   html = html.trim();	
	   return html;
	}

	/**
	 *实现监视器方法，监听用户动作
	 */
	public void commandAction(Command c, Displayable s)
	{
		if(c == backCommand)
		{
			this.display.setCurrent(lottery);
		}
		if (c == okCommand)
		{
			int listIndex;
			listIndex = this.getSelectedIndex();	 //得到你所选择的是哪个菜单并作出响应, 你按下的是电话薄
			if (listIndex == 0)
			{
				String info = getHtml(WebServerURL.getURL() + "football/football_lottery/lottery_expense.jsp");
				if (!Language.isEnglish)
				{
					l_E_F = new LotteryInfoForm("竟猜费用", info, display, this);
				}
				else
				{
					l_E_F = new LotteryInfoForm("Lottery Expense", info, display, this);
				}

				DowloandGuage d = new DowloandGuage();	//连网的进度条
				
				/*服务器出错时显示错误信息，主要实现思想是，运行服务器程序，如果有错误则输出error返回客户端*/
				if (info.trim().compareTo("error") == 0)
				{
					this.display.setCurrent(errorAlert);
				}
				else
				{
					d.showForm(display, l_E_F); //当进度条好了以后，进入下个界面
				}
			}

			if (listIndex == 1)
			{
				String info = getHtml(WebServerURL.getURL() + "football/football_lottery/info_expense.jsp");
				if (!Language.isEnglish)
				{
					l_E_F = new LotteryInfoForm("信息费用", info, display, this);
				}
				else
				{
					l_E_F = new LotteryInfoForm("Info Expense", info, display, this);
				}

				DowloandGuage d = new DowloandGuage();	//连网的进度条
          
				if (info.trim().trim().compareTo("error") == 0)
				{
					this.display.setCurrent(errorAlert);
				}
				else
				{
					d.showForm(display, l_E_F); //当进度条好了以后，进入下个界面
				}
				
			}

			if (listIndex == 2)
			{
				String info = getHtml(WebServerURL.getURL() + "football/football_lottery/expert_expense.jsp");
				if (!Language.isEnglish)
				{
					l_E_F = new LotteryInfoForm("咨询专家费用", info, display, this);
				}
				else
				{
					l_E_F = new LotteryInfoForm("Expert Expense", info, display, this);
				}

				DowloandGuage d = new DowloandGuage();	//连网的进度条
				
				if (info.trim().trim().compareTo("error") == 0)
				{
					this.display.setCurrent(errorAlert);  //显示错误
				}
				else
				{
					d.showForm(display, l_E_F); //当进度条好了以后，进入下个界面
				}
			}
			
		}
		
	}
}