Reading from a file located in same folder as my JAR file.

[Krishna Komarpant]

Hi All,

I have my Netbeans Project after building of which creates a JAR file in the "dist" folder.
Now i want to read some settings stored in a "settings.ini" which i pasted in the same directory as the JAR file.

In my code i give directly, the name of the file to read from in the File Input stream. This does not work, and gives error saying cannot read from file, there is a path resolvnig problem...

What is the correct code notation to read from the file?

Following is the code:

import java.util.Properties;
public class ReadFromFile
{
    // class constructor
    public ReadFromFile()
    {
    }

    public void setMessage()
    {
        Properties props = new Properties();
        //try retrieve data from file
        try {
               File fileCheckWin = new File(Settings.ini); //Linux File check
               if(fileCheckWin.exists()) {
                 props.load(new FileInputStream(settingsFileWin));
               }
        catch(IOException e) {
            e.printStackTrace();
        }
    } 
}

[r035198x]

On File(Settings.ini), did you mean

File("Settings.ini")

instead?

[Krishna Komarpant]

r035198x wrote:On File(Settings.ini), did you mean

File("Settings.ini")

instead?

Oh yes... I apologize for that. It was a typo, i was in haste so did not realize that mistake.

By the way, i figured it out..
I kept the "Settings.ini" file in the Project Home folder and gavethe same format statement in the code

File("Settings.ini")

and continued with my file reading code, and it works perfect.

Thanks anyways!

[Ganesh Gowtham]

Hi Krishna

Could you please try this solution

File file = new File(ReadFromFile.class.getProtectionDomain().getCodeSource().getLocation()
					.getFile());		
			String path = file.getParent() + File.separator + "Settings.ini";    

If you ReadFromFile is packed as jar in name myJar.jar and place Settings.ini in same folder

Above code will read properties file "Settings.ini" .

[Krishna Komarpant]

Yes this will work, bu i realised that i was making my code to commit suicide..

When you write the above code, it takes the base directory for the "Settings.ini" file to be in "projectHomeFolder/build/" directory, which is always deleted and re-created when you build you whole project.

As i have mentioned in the previous post, the solution was to paste the "Settings.ini" file in the "ProjectHomeFolder"

[Zandis Murāns]

getResourceAsStream()

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Class.html#getResourceAsStream(java.lang.String)