package com.example.demo.Util; import com.example.demo.domain.entity.Admin; import org.springframework.security.core.Authentication; import org.springframework.security.core.context.SecurityContextHolder; // com.example.demo.utils.SecurityUtils.java public class SecurityUtils { public static String getCurrentUsername() { Authentication authentication = SecurityContextHolder.getContext().getAuthentication(); if (authentication == null || !authentication.isAuthenticated()) { return "anonymous"; } return authentication.getName(); } public static Integer getCurrentUserId() { Authentication authentication = SecurityContextHolder.getContext().getAuthentication(); if (authentication == null || !authentication.isAuthenticated()) { return null; } if (authentication.getPrincipal() instanceof Admin userDetails) { return userDetails.getId(); } return null; } }