How can I remove a file on server w/ my JSP app running on Tomcat 7 ?

Question

First of all, I'm posting here because I found it the closest to java web development in the forums listing.
How can I remove a file on the server side with my JSP app running on Tomcat 7 ? I did it in a JSE app by changing permissions, but how can I do it for a simple JSP app ?
My code is
public static void excluirArquivos(String nomeArquivoExcluido) {
          File arquivoExcluido = new File (nomeArquivoExcluido);
          arquivoExcluido.setWritable(true, true);
          SecurityManager sm = new SecurityManager();
          try {
               sm.checkDelete(arquivoExcluido.getAbsolutePath());
               System.gc();
               if (arquivoExcluido.delete()) System.out.println("File '" + nomeArquivoExcluido + "' successfully removed.");
               else System.out.println("File '" + nomeArquivoExcluido + "' wasn't removed somehow.");
          } catch (SecurityException se) {
               System.out.println("File '" + nomeArquivoExcluido + "' can't be excluded. There is no permissions.");
     }And it always falls on the catch statement.

Answer 1

899238 wrote:
How can I remove a file on the server side with my JSP app running on Tomcat 7 ? I did it in a JSE app by changing permissions, but how can I do it for a simple JSP app ?1. make sure that the JVM has the (filesystem) rights to be able to remove said file
2. make sure the file is in fact not locked (for example, opened by another process)
3. use File.delete()
There is no guarantee that you can delete a file, you can only make an attempt. There can be any number of reasons, most if not all of them not related to code, that the deletion of a file does not work.