URL下载网络资源

URL： 协议：//ip地址：端口/项目名/资源

public class URLDemo01 {public static void main(String[] args) throws MalformedURLException {URL url = new URL("http://localhost:8080/helloworld/index.jsp?username=banban&password=123");System.out.println(url.getProtocol());//协议System.out.println(url.getHost());//主机IPSystem.out.println(url.getPort());//端口System.out.println(url.getPath());//文件System.out.println(url.getFile());//文件全路径System.out.println(url.getQuery());//参数}
}