Converting Between Filename Path and a URL Java code example - Click here to copy ->>>

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Code:



 

// -----------------------------------------------------------------------------

// ConvertBetweenFilenamePathAndURL.java

// -----------------------------------------------------------------------------



/*

 * =============================================================================

 * Copyright (c) 1998-2005 Jeffrey M. Hunter. All rights reserved.

 * 

 * All source code and material located at the Internet address of

 * http://www.idevelopment.info is the copyright of Jeffrey M. Hunter, 2005 and

 * is protected under copyright laws of the United States. This source code may

 * not be hosted on any other site without my express, prior, written

 * permission. Application to host any of the material elsewhere can be made by

 * contacting me at jhunter@idevelopment.info.

 *

 * I have made every effort and taken great care in making sure that the source

 * code and other content included on my web site is technically accurate, but I

 * disclaim any and all responsibility for any loss, damage or destruction of

 * data or any other property which may arise from relying on it. I will in no

 * case be liable for any monetary damages arising from such loss, damage or

 * destruction.

 * 

 * As with any code, ensure to test this code in a development environment 

 * before attempting to run it in production.

 * =============================================================================

 */

 

import java.io.File;

import java.net.URL;

import java.io.InputStream;

import java.io.BufferedOutputStream;

import java.net.MalformedURLException;

import java.io.IOException;



/**

 * -----------------------------------------------------------------------------

 * This program demonstrates how to convert between a filename path and a URL.

 * 

 * @version 1.0

 * @author  Jeffrey M. Hunter  (jhunter@idevelopment.info)

 * @author  http://www.idevelopment.info

 * -----------------------------------------------------------------------------

 */



public class ConvertBetweenFilenamePathAndURL {



    private static void doConversionTest() {



            // Create a File object

            File fileName = new File("README_InputFile.txt");



            // Convert the file object to a URL

            URL url = null;

            try {



                // The file need not exist. It is made into an absolute path

                // by prefixing the current working directory

                url = fileName.toURL();



                System.out.println();

                System.out.println("Converted fileName to URL");

                System.out.println("-------------------------");

                System.out.println("  fileName = " + fileName);

                System.out.println("  URL      = " + url);



            } catch (MalformedURLException e) {

                e.printStackTrace();

            }



            // Convert the URL to a file object

            fileName = new File(url.getFile());



            System.out.println();

            System.out.println("Converted URL to fileName");

            System.out.println("-------------------------");

            System.out.println("  URL      = " + url);

            System.out.println("  fileName = " + fileName);



            // Read the file contents usign the URL

            try {



                // Open an input stream

                InputStream is = url.openStream();



                byte[] buf = new byte[1024];

                int j = 0;

                while((j=is.read(buf))!=-1) {

                    // Perform any actions with this InputStream...

                }

                

                is.close();

                is.close();



            } catch (IOException e) {

                e.printStackTrace();

            }



    }





    /**

     * Sole entry point to the class and application.

     * @param args Array of String arguments.

     */

    public static void main(String[] args) {

        doConversionTest();

    }



}