package org.kodejava.commons.io;

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.net.URL;

public class URLToFile {
    public static void main(String[] args) {
        try {
            URL url = URI.create("https://www.google.com").toURL();
            File destination = new File("google.html");

            // Copy bytes from the URL to the destination file.
            FileUtils.copyURLToFile(url, destination);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.16.1</version>
</dependency>

6 Comments

1. I got a question: NetBeans tells me that the String "https://www.google.com" cannot be converted to an URL.

   Reply

   • Can you show the complete error message produced by NetBeans?

     Reply

2. Hi Wayan,

   Can I locate my file path like this?

   File destination = new File("../demo/google.html");
   

   Reply

3. Hi Brian,

   Yes, you can create File object using the relative path. In your example, the file path will be on the parent of your current working directory, under the demo directory.

   Reply

4. Thanks for the reply.

   I have another issue now. I am trying to implement your tutorial on my JSP but it doesn’t work as compared to the java class. I have the following codes:

   <%@ page import="org.w3c.dom.*"%>
   <%@ page import="javax.xml.parsers.*"%>
   <%@ page import="java.io.File"%>
   <%@ page import="java.io.IOException"%>
   <%@ page import="java.net.URL"%>
   <%@ page import="org.apache.commons.io.*"%>
   
   <%
   try {
       URL url = new URL("http://10.12.123.12:1234/jspdemo/xmldata/xml_agency.jsp");
       File destination = new File("agencies.xml");
   
       // Copy bytes from the URL to the destination file.
       FileUtils.copyURLToFile(url, destination);
   
   } catch (IOException e) {
       e.printStackTrace();
   }
   
   %>
   

   and it returns:

   Aug 30, 2017 9:25:37 AM org.apache.catalina.core.StandardWrapperValve invoke
   SEVERE: Servlet.service() for servlet [jsp] in context with path [/jspdemo] threw exception 
   [Unable to compile class for JSP: 
   
   An error occurred at line: 15 in the jsp file: /ReadXML.jsp
   FileUtils cannot be resolved
   

   What causes the exception?

   Appreciate your help.

   Reply

5. Hi Brian,

   The error said that it cannot resolved the FileUtils class. Make sure you have the Apache Commons IO library in your web application. In should be in the WEB-INF\lib directory of your web application.

   Reply

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