读取网上的图片到流中

public static void main(String[] args) throws IOException {    long currentTimeMillis = System.currentTimeMillis();       URL url=   new URL  ("http://img.resds.com/sysimg/Register11.html");               InputStream is=url.openStream();  BufferedReader br=new BufferedReader(new InputStreamReader (is));  BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new  FileOutputStream("E:/upload/email/1.html"),"utf-8"));    String line = null;          while((line=br.readLine())!=null){          bw.write(line);                  bw.newLine();                 bw.flush();             }         bw.close();         br.close();         System.err.println(currentTimeMillis);}