newslist.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

/*
 * @(#)NewsList.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.england;	  

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

/*
 *此类是用来读取数据库球队中英国超级联赛最新的新闻信息，以供用户出差或旅游时候浏览
 */
public class NewsList extends List implements CommandListener
{
	/*显示类*/
	private Display display = null;

	/*用于切换的界面类*/
	public England england = null;

	/*新闻内容*/
	public NewsInfoForm news;

	//连网络错误
	private Alert errorAlert = null;

	/*用一个滚动条来显示一些信息*/
	public Ticker newsTicker = new Ticker("欢迎来到英超新闻中心！");


	private Command backCommand = null;
	private Command mostlyCommand = null;
	private Command okCommand = null;

	public NewsList(String title, Display display, England england)
	{
		super(title, List.IMPLICIT);
		this.setTicker(newsTicker);
		//获得用户切换界面
		this.display = display;
	   	this.england = england;
		this.initList();
		errorAlert  = new Alert("ERROR", "连接网络失败 ", null, AlertType.ERROR);
	    errorAlert.setTimeout(1000);
		this.okCommand = new Command("详细信息", Command.OK, 2);
		this.mostlyCommand = new Command("主要内容", Command.OK, 2);
		this.backCommand = new Command("返回", Command.BACK, 2);
		this.addCommand(backCommand);
		this.addCommand(mostlyCommand);
		this.addCommand(okCommand);
		this.setCommandListener(this);
	}

	/*初始化一些球队信息*/
	private void initList()
	{
		String html = "";
		/* Thread t = new Thread() 
		{   				 				 
			public void run() 
			{ */
			try
			{	
				//String parameter = "name=" + nameText.getString() + "&password=" + passwordText.getString();
				
				//获得服务器用户保存的内容
			    html = ConnectHttp.invokeJSP(WebServerURL.getURL() + "football/england_news.jsp");
				
				//处理HTML标记语言
				html = DisposeHTML.getBody(html);	
				html = Unicode.unicodeToString(html);
			}
			catch(IOException e)
			{
			    this.display.setCurrent(errorAlert);
				System.out.println(e);
			}
		/* }						
		};
	   t.start();*/	  //启动线程让它进行连网	
	   
	   String bufferstr = html.trim();	
	   bufferstr = Unicode.unicodeToString(bufferstr); //处理中文问题
	   int j = 0;
	   while(true)	  //处理从网络上获得的数据并对其进行处理
	   {
		   j = bufferstr.indexOf("~");
		   if (j == -1)
		   {
			   break;
		   }
		   this.append(bufferstr.substring(0, j), null);
		   bufferstr = bufferstr.substring(j + 1, bufferstr.length());
	   }

	}

    public String getHtml(String parameter)
	{
		String html = "";
			try
			{	
				//String parameter = "name=" + nameText.getString() + "&password=" + passwordText.getString();
				
				//获得服务器用户保存的内容
			    html = ConnectHttp.invokeJSP(WebServerURL.getURL() + "football/england_news_info.jsp", "name=" + parameter);
				
				//处理HTML标记语言
				html = DisposeHTML.getBody(html);	
				html = Unicode.unicodeToString(html);
			}
			catch(IOException e)
			{
			    this.display.setCurrent(errorAlert);
				System.out.println(e);
			}

			return html;
	}

		
	   
	  

	public void commandAction(Command c, Displayable s)
	{
		if(c == backCommand)
		{
			this.display.setCurrent(england);
		}
	   
		if (c == okCommand)
		{

			DowloandGuage d = new DowloandGuage();	//连网的进度条

			//创建新闻中心详细列表的对象
			if (Language.isEnglish)
			{
				news = new NewsInfoForm("Content", this.getHtml(this.getString(this.getSelectedIndex())), display, this);
			}
			else
			{
				news = new NewsInfoForm("内容", this.getHtml(this.getString(this.getSelectedIndex())), display, this);
			}
			System.out.println(this.getString(this.getSelectedIndex()));
		    //当进度条好了以后，进入下个界面
			d.showForm(display, news);
		}

		if (c == mostlyCommand)
		{
			newsTicker.setString(this.getHtml(this.getString(this.getSelectedIndex())));
		}
	}
}