java解析URL

import java.net.URL;public class Test {   public static void main(String[] args)    throws Exception {      URL url = new URL("http://www.study-area.org/tips/linux_entry.htm");      System.out.println("URL 是 " + url.toString());      System.out.println("协议是 " + url.getProtocol());      System.out.println("文件名是 " + url.getFile());      System.out.println("主机是 " + url.getHost());      System.out.println("路径是 " + url.getPath());      System.out.println("端口号是 " + url.getPort());      System.out.println("默认端口号是 "       + url.getDefaultPort());   }}

运行结果为：

URL 是 http://www.study-area.org/tips/linux_entry.htm协议是 http文件名是 /tips/linux_entry.htm主机是 www.study-area.org路径是 /tips/linux_entry.htm端口号是 -1默认端口号是 80

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