How to get the real path to a file

Question

I upload files to a folder, which works when running in eclipse. But when I try to upload through some browser, I am not allowed due to the security of it.

My question is, is there any way to get the browser to return the file location? Or if there is any way to upload the file to copy it to the destination folder?

If necessary to prepare a reply I leave below my code.

//caminho relativo da pasta destino
final String Dest = System.getProperty("user.dir") + "/";

public void addMusica(String musica_nome, Part musica, String ano) throws IOException {

    String fileName = getFileName(musica);

    File data = null;

    try {

        File music = new File(fileName);

        data = new File(Dest + music.getName());

        Files.copy(music.toPath(), data.toPath());

    } catch (Exception e) {
        e.printStackTrace();
    }

}

//tratamento do path
private String getFileName(Part part) {

    final String partHeader = part.getHeader("content-disposition");

    for (String content : part.getHeader("content-disposition").split(";")) {
        if (content.trim().startsWith("filename")) {
            return content.substring(content.indexOf('=') + 1).trim().replace("\"", "");
        }
    }
}