getuserdatathread.java

手机登陆wap的代码

import javax.microedition.io.*;
import java.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.* ;
public class GetUserDataThread extends Thread
{	
	String url ;
	public GetUserDataThread(String url)
	{
		this.url = url ;
		System.out.println("准备连接:"+this.url) ;
	}
	public void run()
	{
		boolean error = false ;
		HttpConnection conn = null;
		InputStream is = null;
		DataInputStream dos = null ;
		Vector data = new Vector() ;
		try {
    			conn = (HttpConnection)Connector.open(url);
   			is = conn.openInputStream();	
   			dos = new DataInputStream(is) ;
			
   			while(true)
			{
				String line = dos.readUTF() ;
				parseAndInsert(data,line) ;	
			}	
			
 		}catch (EOFException e) 
 		{
 		}catch (Exception e) 
 		{
 			error = true ;
 			Alert al = new Alert("联机时期发生错误",e.toString(),null,AlertType.ALARM) ;
			al.setTimeout(Alert.FOREVER) ;
			Navigator.display.setCurrent(al) ;
 		}finally
 		{
 			try
 			{
 				if(conn!=null)
 					conn.close();
 			}catch(Exception e){}
 		}
 		if(!error)
 		{
 			Navigator.current = Navigator.USERDATA_SCREEN ;
 			Navigator.show(data) ;	
 		}		
	}
	public void parseAndInsert(Vector v,String s)
	{
		int i = s.indexOf(",") ;
		String id = s.substring(0,i) ;
		s = s.substring(i+1) ;
		i = s.indexOf(",") ;
		String ps = s.substring(0,i) ;
		s = s.substring(i+1) ;
		i = s.indexOf(";") ;
		String ds = s.substring(0,i) ;
		v.addElement(id+" / "+ps+" / "+ds);
	}
}