无法使用File或InputStream获取特定目录中存在的文件的名称

Question

我试图使用InputStream获取目录中存在的文件的名称，但它总是返回空：[]

任何人都可以帮我解决这些问题。

项目的结构如下：

@component

新代码：

The code that i made:

        // Gets the info.
        String path = "/imagens/";
        InputStream is = getClass().getResourceAsStream(path);
        InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
        BufferedReader br = new BufferedReader(isr);
        br.lines()
          .map(l -> path + "/" + l)
          .collect(toCollection(FXCollections::observableArrayList));
        // Shows the info.
        URL resource = getClass().getResource("/imagens/");
        try(InputStream is2 = resource.openStream())
        {
          System.out.println(observableArrayList());
        }
        catch (IOException ex)
        {
          Logger.getLogger(JavaFX_Paths.class.getName()).log(Level.SEVERE, null, ex);
        }

最终代码（最后工作:)））） 我使用了InputStream，InputStreamReader和BufferedReader ......与File对象或FileReaders无关。

HBox root = new HBox();
    Button btn = null;
    ArrayList<String> items = new ArrayList<String>();
        String textLine;
        try
    {
            BufferedReader br = new BufferedReader(new FileReader("src/imagens/lista_icones.txt"));
            while ((textLine = br.readLine()) != null)
                items.add(textLine);
            br.close();
    }
    catch (IOException ex)
    {
      Logger.getLogger(JavaFX_Paths.class.getName()).log(Level.SEVERE, null, ex);
    }
    for (int i = 0; i < items.size(); i++)
    {
      Image img = new Image(getClass().getResourceAsStream("/imagens/" + items.get(i) + ".png"));
      btn = new Button();
      btn.setId(items.get(i));
      btn.setGraphic(new ImageView(img));
      root.getChildren().addAll(btn);
    }