如何从Java 更改文件权限？

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.Set;

public class FilePermissionExample {
    public static void main(String[] args) {
        try {
            // 要更改权限的文件路径
            String filePath = "/path/to/your/file";

            // 创建文件路径对象
            Path path = Paths.get(filePath);

            // 获取当前文件权限
            Set<PosixFilePermission> currentPermissions = Files.getPosixFilePermissions(path);

            // 修改文件权限
            Set<PosixFilePermission> newPermissions = PosixFilePermissions.fromString("rwxr-x---");
            Files.setPosixFilePermissions(path, newPermissions);

            // 输出更改后的文件权限
            System.out.println("File permissions updated to: " + Files.getPosixFilePermissions(path));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}