如何使用java锁定文件(如果可能)

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileLock;
import java.nio.channels.OverlappingFileLockException;

public class FileLockExample {
    public static void main(String[] args) {
        try {
            FileOutputStream fileOutputStream = new FileOutputStream("example.txt");
            FileLock fileLock = fileOutputStream.getChannel().tryLock();

            if (fileLock != null) {
                System.out.println("File successfully locked.");
                // Perform file operations here
                fileLock.release();
                System.out.println("File unlocked.");
            } else {
                System.out.println("Unable to lock file.");
            }

            fileOutputStream.close();
        } catch (OverlappingFileLockException | IOException e) {
            e.printStackTrace();
        }
    }
}