How does java get the inode identifier of a file

Today, I would like to share with you the relevant knowledge points about how java obtains the inode identifier of the file. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Java gets the inode identifier of the file. If the file is deleted or renamed, the value of inode will change, so you can record inode after the first load of File, and then check the value of inode to determine whether the file has been deleted, renamed or recreated.

Method 1

Import java.io.File;import java.nio.file.Files;import java.nio.file.attribute.BasicFileAttributeView;import java.nio.file.attribute.BasicFileAttributes;/** * Created by bruce on 21:39 on 2022-3-27 * / public class FileInodeReaderTest {public static void main (String [] args) {File file = new File ("/ logs/csp/sentinel-block.log"); try {BasicFileAttributeView basicview = Files.getFileAttributeView (file.toPath (), BasicFileAttributeView.class) BasicFileAttributes attr = basicview.readAttributes (); System.out.println ("attr.fileKey ():" + attr.fileKey () + "attr.creationTime:" + attr.creationTime () + "attr.lastModifiedTime:" + attr.lastModifiedTime ());} catch (Exception ex) {System.out.println (ex.getMessage ());}

Method 2

Import java.io.File;import java.nio.file.Files;/** * Created by bruce on 21:39 on 2022-3-27 * / public class FileInodeReaderTest {public static void main (String [] args) {File file = new File ("/ logs/csp/sentinel-block.log"); try {Object inode = Files.getAttribute (file.toPath (), "unix:ino"); System.out.println ("inode- >" + inode) } catch (Exception ex) {System.out.println (ex.getMessage ());} above is all the content of the article "how does java get the inode identifier of a file". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.