? FileFileFilter
java.lang.Object
org.apache.commons.io.filefilter.AbstractFileFilter
org.apache.commons.io.filefilter.FileFileFilter
- ????????:
FileFilter
,FilenameFilter
,Serializable
,FileVisitor<Path>
,PathFilter
,PathVisitor
,IOFileFilter
This filter accepts
File
s that are files (not directories).
For example, here is how to print out a list of the real files within the current directory:
Using Classic IO
File dir = new File("."); String[] files = dir.list(FileFileFilter.INSTANCE); for (String file : files) { System.out.println(file); }
Using NIO
final Path dir = Paths.get(""); final AccumulatorPathVisitor visitor = AccumulatorPathVisitor.withLongCounters(FileFileFilter.INSTANCE); // // Walk one dir Files.walkFileTree(dir, Collections.emptySet(), 1, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getFileList()); // visitor.getPathCounters().reset(); // // Walk dir tree Files.walkFileTree(dir, visitor); System.out.println(visitor.getPathCounters()); System.out.println(visitor.getDirList()); System.out.println(visitor.getFileList());
- ???????:
- 1.3
- ????:
-
????
????????????static final IOFileFilter
????static final IOFileFilter
Singleton instance of file filter.???????? org.apache.commons.io.filefilter.IOFileFilter
EMPTY_STRING_ARRAY
-
?????
??? -
????
??????????boolean
Checks to see if the file is a file.accept
(Path file, BasicFileAttributes attributes) Checks to see if the file is a file.??????? org.apache.commons.io.filefilter.AbstractFileFilter
accept, handle, postVisitDirectory, preVisitDirectory, toString, visitFile, visitFileFailed
??????? java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
???????? org.apache.commons.io.filefilter.IOFileFilter
and, negate, or
-
??????
-
INSTANCE
Singleton instance of file filter.- ???????:
- 2.9.0
-
FILE
????UseINSTANCE
.Singleton instance of file filter.
-
-
???????
-
FileFileFilter
protected FileFileFilter()Restrictive constructor.
-
-
??????
-
accept
Checks to see if the file is a file.- ???:
accept
????FileFilter
- ???:
accept
????IOFileFilter
- ??:
accept
???AbstractFileFilter
- ??:
file
- the File to check- ??:
- true if the file is a file
-
accept
Checks to see if the file is a file.- ???:
accept
????IOFileFilter
- ???:
accept
????PathFilter
- ??:
file
- the File to checkattributes
- the file's basic attributes (TODO may be null).- ??:
- true if the file is a file
- ???????:
- 2.9.0
-
INSTANCE
.