CODEWITHSUNDEEP
javafilesrc
Arnauld Alex
Arnauld Alex

Reputation: 349

Get folder from Resources folder JAVA

Hi everyone I can't figure out with this problem : this line of code should work 

File[] file = (new File(getClass().getResource("resources/images_resultats"))).listFiles();

I want a list of File, these Files are under "images_resultats" under "resources".

Project image

Upvotes: 8

Views: 20170

Answers (3)

Nicolas Filotto
Nicolas Filotto

Reputation: 45005

It won't work if resources/images_resultats is not in your classpath and/or if it is in a jar file.

Your code should rather be something like this:

File[] file = (new File(getClass().getResource("/my/path").toURI()))
                  .listFiles();

Upvotes: 2

Richard Tingle
Richard Tingle

Reputation: 17236

You can determine what files are in a folder in resources (even if its in a jar) using the FileSystem class.

public static void doSomethingWithResourcesFolder(String inResourcesPath) throws URISyntaxException {
    URI uri = ResourcesFolderUts.class.getResource(inResourcesPath).toURI();
    try( FileSystem fileSystem = FileSystems.newFileSystem(uri, Collections.emptyMap() ) ){
        Path folderRootPath = fileSystem.getPath(inResourcesPath);
        Stream<Path> walk = Files.walk(folderRootPath, 1);
        walk.forEach(childFileOrFolder -> {
            //do something with the childFileOrFolder
        });
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

inResourcesPath should be something like "/images_resultats"

Note that the childFileOrFolder paths can only be used while the FileSystem remains open, if you try to (for example) return the paths then use them later you've get a file system closed exception.

Change ResourcesFolderUts for one of your own classes

Upvotes: 1

s_u_f
s_u_f

Reputation: 200

Assuming that resources folder is in classpath, this might work.

   String folder = getClass().getResource("images_resultats").getFile();
   File[] test = new File(folder).listFiles();

Upvotes: -3

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