FileNotFoundException，但文件确实存在

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class FileReader {
    public static void main(String[] args) {
        String filePath = "/path/to/file.txt";
        File file = new File(filePath);

        if (file.exists() && !file.isDirectory()) {
            try {
                Scanner scanner = new Scanner(file);
                while (scanner.hasNextLine()) {
                    String line = scanner.nextLine();
                    System.out.println(line);
                }
                scanner.close();
            } catch (FileNotFoundException e) {
                System.out.println("文件未找到: " + e.getMessage());
            }
        } else {
            System.out.println("文件不存在或已被删除");
        }
    }
}