@DeleteMapping({"", "/"})
	@PreAuthorize("hasAnyRole('A')")
	public void deleteUsers(User user, @RequestParam String userIds) {
		String[] ids = userIds.split(",");
		for (String eachId : ids) {
			if (!user.getUserId().equals(eachId)) {
				userService.delete(eachId);
				log.info("'{}' is deleted by '{}'", eachId, user.getUserId());
			}
		}
	}
Delete users.

@param userIds comma separated user ids.
@return "redirect:/user/"
ngrinder-controller/src/main/java/org/ngrinder/user/controller/UserApiController.java