java 网络编程-URL

URL:统一资源定位器
协议
域名、计算机名
端口：默认80
资源(#为锚点)
http://www.baidu.com:80/index.html?uname=shsxt&age=18#a

public class http {public static void main(String[]args) throws  MalformedURLException{    URL url =new URL("http://www.baidu.com:80/index.html?uname=shsxt&age=18#a");    //获取四个值    System.out.println("协议:"+url.getProtocol());    System.out.println("域名/ip:"+url.getHost());    System.out.println("端口:"+url.getPort());    System.out.println("请求资源:"+url.getFile());    System.out.println("请求资源:"+url.getPath());    //参数    System.out.println("参数:"+url.getQuery());    //锚点    System.out.println("锚点:"+url.getRef());}}