J2ME模拟器获取网页数据失败解决思路

J2ME模拟器获取网页数据失败
就是自己练习一个很简单的获取一个网络上文本数据应用，获取后，显示在TextBox上，不知道为什么显示空白。麻烦大家看下哪里有问题。[code=Java][/code]public class weather extends MIDlet {
  private TextBox textbox;
public weather() throws IOException {
  super();
  String info = "";
  String preWeather = "";
  final String TITLE = "短期预报";
  DataInputStream in = null;
  HttpConnection wConnection = null;
  String URL = "http://www.hzqx.com/gzhfw/dqyb.asp";
  try {
  wConnection = (HttpConnection)Connector.open(URL);
  wConnection.setRequestMethod(HttpConnection.GET);
  in = new DataInputStream(wConnection.openInputStream());
  int character;
while((character = in.read())!= -1)
  {  
  info += (char)character;
  }
  }catch (IOException e) {
  System.out.print("ERROR:" + e);
  }
finally
  {
  if (wConnection != null){
  wConnection.close();
  wConnection = null;
  }
  if (in != null){
  in.close();
  }
  }
  info = (unicodeTogb2312(info)).trim();
  preWeather = GetWeatherInfomation(info);
  textbox = new TextBox(TITLE,preWeather,20,0);
   
}

public static String unicodeTogb2312(String s){
  if(s == null){return "";}
  if(s.equals("")){return s;}
  try{
  return new String(s.getBytes("ISO8859_1"),"gb2312");
  }catch(Exception e){
  return s;
  }
  }
public static String GetWeatherInfomation(String str){
  String preWeather = "";
  String td = "今";
  String end = "更";
  int startNum;
  int endNum;
  startNum = str.indexOf(td);
  endNum = str.indexOf(end);
  if (startNum == -1){
  preWeather = "获取失败";
  return preWeather;
  }
  else {
  preWeather = str.substring(startNum, endNum);
  return preWeather;
  }
  }

不知道哪里出问题了。显示"获取失败"，没内容。电脑可以上网。
Eclipse里关掉模拟器似乎有这么一句ERROR显示：ERROR:javax.microedition.io.ConnectionNotFoundException: TCP openExecution completed
 

------解决方案--------------------------------------------------------
tcp open应该是电脑的网络问题吧，你多试几下。。
------解决方案--------------------------------------------------------
000000000000000