Java 遍历文件夹
Java About 1,247 wordsFiles.walkFileTree
preVisitDirectory
:进入文件夹前的回调方法。
visitFile
:遍历到具体文件的回调方法。
postVisitDirectory
:退出文件夹后的回调方法。
visitFileFailed
:访问文件失败的回调方法。
public class FilesWalkTreeDemo {
public static void main(String[] args) throws IOException {
Files.walkFileTree(Paths.get("./"), new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
System.out.println("===> " + dir.toString());
return super.preVisitDirectory(dir, attrs);
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
System.out.println(file.toString());
return super.visitFile(file, attrs);
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
return super.postVisitDirectory(dir, exc);
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
return super.visitFileFailed(file, exc);
}
});
}
}
Views: 1,727 · Posted: 2021-12-07
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