Java download the web page

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
 
public class Test {
 
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			 URL url = new URL("http://jj.24365pt.com/index.jhtml");
 
			 URLConnection conn = url.openConnection();
			 conn.setDoOutput(true);
			 InputStream in = null;
			 in = url.openStream();
			 String content = pipe(in,"utf-8");
			 System.out.println(content);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
 
	static String pipe(InputStream in,String charset) throws IOException {
        StringBuffer s = new StringBuffer();
        if(charset==null||"".equals(charset)){
        	charset="utf-8";
        }
        String rLine = null;
        BufferedReader bReader = new BufferedReader(new InputStreamReader(in,charset));
        PrintWriter pw = null;
 
		FileOutputStream fo = new FileOutputStream("../index.html");
		OutputStreamWriter writer = new OutputStreamWriter(fo, "utf-8");
		pw = new PrintWriter(writer);
        while ( (rLine = bReader.readLine()) != null) {
            String tmp_rLine = rLine;
            int str_len = tmp_rLine.length();
            if (str_len > 0) {
              s.append(tmp_rLine);
              pw.println(tmp_rLine);
              pw.flush();
            }
            tmp_rLine = null;
       }
        in.close();
        pw.close();
        return s.toString();
	}
}