import java.net.*;import java.io.*;public class URLDemo { ???public static void main(String[] args) ???{ ???????try ???????{ ???????????//利用Java.net中的URL类来获取资源 ???????????URL url=new URL("https://www.baidu.com"); ???????????URLConnection urlConnection=url.openConnection(); ???????????HttpURLConnection connection=null; ???????????if(urlConnection instanceof HttpURLConnection) ???????????????connection=(HttpURLConnection)urlConnection; ???????????else ???????????{ ???????????????System.out.println("请输入有效的URL地址"); ???????????????return; ???????????} ???????????InputStreamReader isr=new InputStreamReader(connection.getInputStream(),"UTF-8"); ???????????BufferedReader in=new BufferedReader(isr); ???????????String current; ???????????while((current=in.readLine())!=null) ???????????{ ???????????????System.out.println(current); ???????????} ???????} ???????catch(IOException e) ???????{ ???????????e.printStackTrace(); ???????} ???}}使用URL读取网页内容
原文地址：http://www.cnblogs.com/mingyao123/p/7464887.html