@PreAuthorize("hasRole('ROLE_ADMIN')")
@GetMapping("/user/{id}")
public String getUser(@PathVariable("id") String id) {
    ...
}			
			
			

			
@PreAuthorize("hasAnyRole('ROLE_ADMIN','ROLE_MANAGER')")
@GetMapping("/users")
public String getUsers() {
    ...
}			
			
			

			
@GetMapping("/users")
public String getUsers(HttpServletRequest request) {
    if (request.isUserInRole("ROLE_ADMIN")) {
        ...
    }
}			
			
			

			
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
if (auth != null && auth.getAuthorities().stream().anyMatch(a -> a.getAuthority().equals("ADMIN"))) {
    ...
}			
			
			

			
@GetMapping("/users")
public String getUsers() {
    UserDetails details = userDetailsService.loadUserByUsername("mike");
    if (details != null && details.getAuthorities().stream()
      .anyMatch(a -> a.getAuthority().equals("ADMIN"))) {
        // ...
    }
}