在URL和URI之间转换

import java.net.MalformedURLException;

import java.net.URI;

import java.net.URISyntaxException;

import java.net.URL;
/**
来 自 N o  w  J a v a . c o m - 时  代  Java
**/


public class Main {

  public static void main(String[] args) {

    URI uri = null;

    URL url = null;


    // Create a URI

    try {

      uri = new URI("file://D:/folder/Ex1.java");

    } catch (URISyntaxException e) {

    }


    // Convert an absolute URI to a URL

    try {

      url = uri.toURL();

    } catch (IllegalArgumentException e) {

      // URI was not absolute
      /**
       * n o w  j a v a  . c o m 提 供 
      **/

    } catch (MalformedURLException e) {

    }