spring security get user id from DB

Question

I am using spring security for authentication and successfully able to get User object (org.springframework.security.core.userdetails.User) anywhere I

Answer 1

@RequestMapping(value="/getLogedUserid")
public Long getUserByUsername(HttpServletRequest httpServletRequest) {      
    HttpSession httpSession = httpServletRequest.getSession();
    SecurityContext securityContext = (SecurityContext)
            httpSession.getAttribute("SPRING_SECURITY_CONTEXT");
    String username = securityContext.getAuthentication().getName();
    return userMetier.getUserByUsername(username);
}

here we have the definition of the function getting the id by the username

    @Override
public Long getUserByUsername(String Username) {
    User user = userRepository.getUserByUsername(Username);

    return user.getIdUser();
}