lotterycastform.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

/*
 * @(#)LotteryCastForm.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.*;


/**
 *此类是用来投注显示层
 */
public class LotteryCastForm extends Form implements CommandListener, ItemStateListener
{
	private Display display;

	/*表示层类*/
	private Displayable dsa;

	/*数据输入对象*/
	public TextField userID; //输入用户ID;
	public TextField time;  //由用户输入要买多少注
    public StringItem money;

	/*错误*/
	private Alert errorAlert = null;

	/*警告*/
	private Alert alarmAlert = null;

	/*成功*/
	private Alert okAlert = null;

	//定义离开软键
	public Command backCommand = null;		
	public Command okCommand = null;
	private Command goCommand = null;
	private Command noCommand = null;

	private String info; //保存投注详细信息
	private String ballot; //保存用户投注的结果，用胜，平，负
	private String ballotIsOK; //判断投注是否成功
	private String point;  //得到足球彩票第几期
	private double sum; //保存要交多少钱


	/*-------------------------------------------------------------------
	 *初始化
	 */
	public LotteryCastForm(String title, String point, String info, String ballot, Display display, Displayable dsa)
	{
		super(title);
		this.display = display;
		this.dsa = dsa;
		this.append(info);
		this.info = info;
		this.point = point;
		this.ballot = ballot;
		this.time =  new TextField("*请输入注数：", "", 30, TextField.NUMERIC);
		this.userID = new TextField("* 输入用户ID：", "", 30, TextField.ANY);
		this.money = new StringItem("交钱", "");
		this.backCommand = new Command("返回", Command.BACK, 2);	
		this.okCommand = new Command("确定", Command.BACK, 2);	
		this.addCommand(backCommand);
		this.addCommand(okCommand);
		this.append(userID);
		this.append(time);
		this.setCommandListener(this);
		this.setItemStateListener(this);
	}

    /**
	 *显示对象
	 */

	private String callServer()
	{
		String html = "";
		if (userID.getString().trim().compareTo("") != 0 && time.getString().trim().compareTo("") != 0)
		{
			//参数
			String parameter =  "userID=" + userID.getString().trim() + "&point=" + point
				              + "&info=" + info + "&time=" + time.getString().trim()
				              + "&money=" + sum + "&ballot=" + ballot;
			try
			{
				//获得服务器用户保存的内容
				html = ConnectHttp.invokeJSP(LotteryServerURL.getURL() + "/lottery_ballot.jsp", parameter);
				//处理HTML标记语言
				html = DisposeHTML.getBody(html);
				 
				//判断是否注册成功
				ballotIsOK = html;
				System.out.println(ballotIsOK);
				okAlert  = new Alert("INFO", "恭喜您，你投注成功！请继续关注开奖时间。谢谢！ ", null, AlertType.ERROR);
		        okAlert.setTimeout(3000);
				errorAlert  = new Alert("ERROR", "投注失败, 用户ID不存在，请注册成为俱乐部成员！", null, AlertType.ERROR);	
				errorAlert.setTimeout(2000);
				return html;
			}
			catch(IOException e)
			{
				errorAlert  = new Alert("ERROR", "投注失败, 网络错误！", null, AlertType.ERROR);	
				errorAlert.setTimeout(2000);
				System.out.println(e);
			}
			catch(NullPointerException e)
			{
				System.out.println(e);
			}
		}
		else
		{
			errorAlert  = new Alert("ERROR", "请填写完整您的信息！ ", null, AlertType.ERROR);
		    errorAlert.setTimeout(2000);
			return "false";
		}
		return html;		
	}


	public void showForm()
	{
		this.display.setCurrent(this);
	}

	public void commandAction(Command c,Displayable s)
	{
		if(c == backCommand)
		{	
			this.display.setCurrent(dsa);
		}
		if (c == okCommand)
		{
			alarmAlert  = new Alert("WARNING", "先生或女士们！请注意！假如您们不是俱乐部成员请先注册！如果是俱乐部成员！请点击ok!", null, AlertType.WARNING);
		    this.goCommand = new Command("OK", Command.OK, 2);
		    this.noCommand = new Command("back", Command.BACK, 2);
			alarmAlert.addCommand(goCommand);
		    alarmAlert.addCommand(noCommand);
			alarmAlert.setCommandListener(this);
			this.display.setCurrent(alarmAlert);
		}
		if (c == goCommand)
		{
			if (this.callServer().trim().compareTo("true") == 0)
			{
				this.display.setCurrent(okAlert, dsa);
			}
			else
			{
				this.display.setCurrent(errorAlert, this);
			}
		}

		if (c == noCommand)
		{
			this.display.setCurrent(dsa);
		}
	}

	public void itemStateChanged(Item item)
	{
		if (item == time)
		{
			
			try
			{
				/*手续费用*/
				double other = Double.parseDouble(time.getString()) * 0.1;
				/*总费用*/
				sum = other + Double.parseDouble(time.getString()) * 2;
				this.money.setText("\n尊敬的客户你选择投注了" + time.getString() + "注" + "\n你应该付手续费用是：" + other 
				             + "块人民币" + "\n你应该付的总费用是：" + sum + "块人民币");
			}
			catch(NumberFormatException n)
			{
			}
			try
			{
				this.insert(1, money);
			}
			catch(IllegalStateException e)
			{
			}
			
		}
	}


}