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Returning path to class file

I want to be able to read a text file from the same directory where my Jar file resides, or class files if I've not yet packaged them up.

How do I return the path to the class file or JAR file if the class I'm in is inside a JAR file ?

Thanks
Dazza
0
Dazza051197
Asked:
Dazza051197
1 Solution
 
jerchCommented:
You can use System.getProperty("user.dir") to get the current directory where your Java program is running on.

Jerson
0
 
Igor BazarnyCommented:
Hi,

Why don't you put your text file into jar and use Class.getResourceAsStream()?
If you still want to find your directory, here is a piece of code from http://www.experts-exchange.com/jsp/qShow.jsp?ta=java&qid=11475783:

private String classResName(){
    String className = getClass().getName();
    return "/"+className.replace('.','/')+".class";
}

private File findExtRoot(){
    URL url = getClass().getResource(classResName());
    try{
       URLConnection connection = url.openConnection();
       if( connection instanceof JarURLConnection ){
       URL jarURL = ((JarURLConnection)connection).getJarFileURL();
           File jarFile = new File(jarURL.getFile());
           return new File(jarFile.getParent());
       }
   }
   catch(IOException err){
       err.printStackTrace();
   }
   return null;
}

Regards,
Igor Bazarny,
Brainbench MVP for Java 1
www.brainbench.com
0
 
shyamkumarreddyCommented:
Yes Dazza

Use getResourceAsStream("FileName");


Shyam
0
 
Dazza051197Author Commented:
Thanks Igor

With a little bit of tweaking to the code you gave me, it now works.  The code you gave me works fine for when the code is running from the Jar file, but if I'm still in Forte it returns null, so I managed to add some code to the else of the findExtRoot() to return the filepath if it's not running from the Jar file.

Thanks
Dazza
0

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