一个Demo看URL和URI的区别

来源：互联网发布：删除json数组指定元素编辑：程序博客网时间：2024/05/19 13:28
DEMO来自：http://blog.sina.com.cn/s/blog_621c16b101012itu.html
package com.practise.test;import java.net.MalformedURLException;import java.net.URI;import java.net.URISyntaxException;import java.net.URL;/** * Created by mashao on 15/11/27. */public class Main {    public static void main(String[] args) {        try {            URL url=new URL("http://developer.android.com/referencejava/net/URL.html?s=a#getRef()");            System.out.println("Authority是:"+url.getAuthority());            System.out.println("Host是:"+url.getHost());            System.out.println("Port是："+url.getPort());            System.out.println("File是"+url.getFile());            System.out.println("Path是"+url.getPath());            System.out.println("Query是："+url.getQuery());            System.out.println("Ref是:"+url.getRef());        } catch (MalformedURLException e) {            e.printStackTrace();        }        try {            URI absolute=new URI("http://www.baidu.com");            URI relative=new URI("robot.txt");            URI resolved=new URI("http://www.baidu.com/robot.txt");            System.out.println("-----------------------解析前-------------------------");            System.out.println("Authority是:"+relative.getAuthority());            System.out.println("Host是:"+relative.getHost());            System.out.println("Port是："+relative.getPort());            System.out.println("Path是"+relative.getPath());            System.out.println("Query是："+relative.getQuery());            System.out.println("Ref是:"+relative.getFragment());            System.out.println("Scheme是:"+relative.getScheme());            System.out.println("-----------------------解析后-------------------------");            relative=absolute.resolve(relative);            System.out.println("Authority是:"+relative.getAuthority());            System.out.println("Host是:"+relative.getHost());            System.out.println("Port是："+relative.getPort());            System.out.println("Path是"+relative.getPath());            System.out.println("Query是："+relative.getQuery());            System.out.println("Ref是:"+relative.getFragment());            System.out.println("Scheme是:"+relative.getScheme());            System.out.println("-----------------------相对化-------------------------");            relative=absolute.relativize(resolved);            System.out.println("Authority是:"+relative.getAuthority());            System.out.println("Host是:"+relative.getHost());            System.out.println("Port是："+relative.getPort());            System.out.println("Path是"+relative.getPath());            System.out.println("Query是："+relative.getQuery());            System.out.println("Ref是:"+relative.getFragment());            System.out.println("Scheme是:"+relative.getScheme());            System.out.println("-----------------------不透明-------------------------");            URI uri=new URI("mailto:warsh@msncn");            System.out.println("Authority是:"+uri.getAuthority());            System.out.println("Host是:"+uri.getHost());            System.out.println("Port是："+uri.getPort());            System.out.println("Path是"+uri.getPath());            System.out.println("Query是："+uri.getQuery());            System.out.println("Ref是:"+uri.getFragment());            System.out.println("Scheme是:"+uri.getScheme());            System.out.println("Scheme具体部分:"+uri.getSchemeSpecificPart());        } catch (URISyntaxException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}
总结：URI是你给一个东西的标识的名字，而URL是你给这个东西的地址用来找到这样东西。
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