Convert a file name path to url and vice versa in java
Introduction
In this section, you will learn about the conversion from a Filename path to
a URL and vice versa in the java. URL stands for Uniform Resource Locator.
URL is a pointer to point the World Wide Web
resources. The URL indicates the protocol like: http( Hyper
Text Transfer Protocol) and also display the host machine name. Simply it displays the filename path where it is stored. Here, you will
see two programs as follows:
Program to create instance of URL class:
This program shows you how to convert the URL into the Filename
Path. Program reads a URL and then converts into the Filename Path.
URL url = new URL(str);
The above code
creates an instance of the URL class to change the specified string into its URL
representation. If user enters a URL as a string, then the given string is converted
into the instance of the URL class. If any error occurs during the creation of
the instance of the URL, program throws MalformedURLException exception
and exception is caught in the catch block.
url.getFile();
The getFile() method of the URL class is used to get the file name from the specified URL.
Here is the code of Convert the URL into Filename Path Program:
import java.io.*;
import java.net.*;
public class ConvertURLToFileName{
public static void main(String[] args)throws IOException{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Please enter the URL : ");
String str = in.readLine();
try{
URL url = new URL(str);
System.out.println("File : "+ url.getFile());
System.out.println("Converting process Successfully");
}
catch (MalformedURLException me){
System.out.println("Converting process error");
}
}
}
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Output of the Program:
C:\nisha>java ConvertURLToFileName
Please enter the URL : http:\\www.roseindia.net\java\index.shtml
File : \\www.roseindia.net\java\index.shtml
Converting process Successfully
C:\nisha> |
Download this example.
String representation of the URL:
This program also converts the Filename Path into URL. It reads a file name and
converted into the URL.
toURL():
The toURL()
method of the
File
class is used to convert the file name path into the URL. This is done by
creating the instance of the URL class with the toURL() method of the File
class.
Here is the code of Convert the Filename Path into URL Program :
import java.io.*;
import java.net.*;
public class ConvertFileNamePathToURL{
public static void main(String[] args)throws IOException{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Please enter the File neme : ");
String str = in.readLine();
File file = new File(str);
URL url = null;
try{
url = file.toURL();
System.out.println("URL : "+ url);
System.out.println("Converting process Successfully");
}
catch (MalformedURLException me){
System.out.println("Converting process error");
}
}
}
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Download this example.
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