为什么我从网上抓取的数会有总是

<%@ page import="java.io.*"%>

google_ad_width = 250; google_ad_height = 250; google_ad_format = "250x250_as"; google_color_url = "000000";

<%@ page import="java.io.Writer"%>

<%@ page import="java.net.*"%>

<%@ page import="java.util.Properties"%>

<%

String[] picurl;

String[] picsave;

String s1 = "http://www.ecds05.com/class3/qyk/image/1.mp3";

//本地存放路径

String s2 = "E:\\"+System.currentTimeMillis()+".mp3";

URL urlfile = null;

HttpURLConnection httpUrl = null;

BufferedInputStream bis = null;

BufferedOutputStream bos = null;

File f = new File(s2);

try{

urlfile = new URL(s1);

httpUrl = (HttpURLConnection)urlfile.openConnection();

httpUrl.connect();

bis = new BufferedInputStream(httpUrl.getInputStream());

}catch(Exception e){