import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.HttpURLConnection;

/**
* 网络文件存取类

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page import="java.io.*,java.net.URL"%>
<%
URL url = new URL("http://www.itpub.net");//建立URL对象，并实例化为url，获得要抓取的网页地址
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream(),"GB2312"));//建立BufferedReader对象，并实例化为reader，这里的GB2312是要抓取的网页编码格式
while(reader.ready())