Cannot read files from resources folder

Question

Final edit: now the code looks like this

InputStream is = getClass().getResourceAsStream("/static/master-key.txt");
String masterKey = null;
Scanner scanner = new Scanner(is);
masterKey = scanner.nextLine();
System.out.println("the master key is " + masterKey);

Original post

I have a problem when reading txt file from resources folder.

This what project structure looks like:
projStructure

When I invoke the following code

System.out.println(getClass().getClassLoader().getResource("static/master-key.txt").getPath());
File mkFile = new File(getClass().getClassLoader().getResource("static/master-key.txt").getPath());

this what happens

/D:/Dropbox/Coding/Intellij%20IDEA/TishenkoKPO/target/classes/static/master-key.txt
java.io.FileNotFoundException: 
D:\Dropbox\Coding\Intellij%20IDEA\TishenkoKPO\target\classes\static\master-key.txt (System cannot find the specified path)

I've googled alot but have no clue of why this happens

Edit 1: Part of the code rebuilt as community suggested (working with file as a resource)

InputStream is = getClass().getResourceAsStream("static/master-key.txt");
String masterKey = null;
Scanner scanner = new Scanner(is);
masterKey = scanner.nextLine();
System.out.println("the master key is " + masterKey); //successfuly outputs the first line if exists

Edit 2: resourcepath should begin with /

InputStream is = getClass().getResourceAsStream("/static/master-key.txt");

Andrew Thompson · Accepted Answer · 2018-06-03 07:00:21Z

3

InputStream is = getClass().getResourceAsStream("static/master-key.txt");

This is searching for a resource relative to the package / directory of the class that is calling it. It is likely that resource can actually be found relative to the root of the application structure. To do that, add a leading /, like this.

InputStream is = getClass().getResourceAsStream("/static/master-key.txt");

edited Jun 3, 2018 at 7:00

answered Jun 3, 2018 at 6:52

Andrew Thompson

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NecroMancer · Accepted Answer · 2018-06-03 00:55:54Z

0

Try this

getResource("resources\static\master-key.txt").getPath());

and if u targeting a path use '\' not '/'. And u can try

YourClass.class.getResourceAsStream("resources\static\master-key.txt");

or

YourClass.class.getResourceAsStream("static\master-key.txt");

answered Jun 3, 2018 at 0:55

NecroMancer

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4 Comments

Quipex Over a year ago

That's weird. I've tried everything you've mentioned but nothing works. It throws Nullpointerexception as if there's no file by that filepath.

NecroMancer Over a year ago

You have file in this path ? D:\Dropbox\Coding\Intellij%20IDEA\TishenkoKPO\target\classes\static\master-key.txt

Quipex Over a year ago

Indeed, I have. Could it be that 'space' in the name of a folder causing the problem? Java interprets 'space' as '%20'

Quipex Over a year ago

Edit: no, that's not the case. Have just tested that on a brand new project, works fine. Maybe the problem lays in the location of the class which method I invoke.

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