在java中的file.lists()中排除系统文件

public class IgnoreSystemFileFilter implements FileFilter {

   Set<String> systemFileNames = new HashSet<String>(Arrays.asList("sys","etc"));

   @Override
   public boolean accept(File aFile) {

     // in my scenario: each hidden file starting with a dot is a "system file"
     if (aFile.getName().startsWith(".") && aFile.isHidden()) {
       return false;
     }

     // exclude known system files
     if (systemFileNames.contains(aFile.getName()) {
       return false;
     }

     // more rules / other rules

     // no rule matched,so this is not a system file
     return true;
 }