图像文件夹的相对路径

Question

我有一个图像文件夹的相对路径的问题。我想把图片列到一个文件夹中，把它们的网址添加到列表中，并在jsp中显示出来。代码是这样的：

File carpetaImagenes = new File("../../../../../webapp/resources/img/maquinas/"+seleccion);
    List<String> listaUrlImagenes = new ArrayList<String>();  

    /** Recorremos el directorio de imagenes de la maquina */
    for(File imagen : carpetaImagenes.listFiles()){  
      String imageFileName = imagen.getName();          
      listaUrlImagenes.add(imageFileName);  
    }  

我试过好几条路，但都不走运。非常感谢你。

Answer 1

终于工作了！！

File carpetaImagenes = new ClassPathResource("imagenes/maquinas/"+seleccion).getFile();
    File[] listaImagenes = carpetaImagenes.listFiles();

Answer 2

用户下面的方法getImageList和它应该工作

relativeFilePath = "img/maquinas/"+seleccion;

这是类路径的相对路径。我想…./../../..//webapp/resources是部署所有内容的实际文件夹。

private List getImageList(String relativeFilePath) {
List<String> listaUrlImagenes = new ArrayList<String>();
try {

    InputStream in = getResourceAsStream(relativeFilePath);
    BufferedReader br = new BufferedReader(new InputStreamReader(in));
    String resource;

    while ((resource = br.readLine()) != null) {
        listaUrlImagenes.add(resource);
    }
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
return listaUrlImagenes;
}
private InputStream getResourceAsStream(String resource) {
final InputStream in = ClassLoader cl = this.getClass().getClassLoader().getResourceAsStream(
        resource);

return in == null ? getClass().getResourceAsStream(resource) : in;
}

在Spring，跟随应该会起作用。

ClassLoader cl = this.getClass().getClassLoader();
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(
        cl);
Resource[] resources = resolver.getResources("classpath:/img/maquinas/"+seleccion);// or *.png
for (Resource resource : resources) {

 listaUrlImagenes.add(resource.getFilename());
}