Method validate

ch3/UserValidator.java:14–31

(Object target, Errors errors)

	}

	@Override
	public void validate(Object target, Errors errors) { 
		System.out.println("UserValidator.validate() is called");

		User user = (User)target;
		
		String id = user.getId();
		
//		if(id==null || "".equals(id.trim())) {
//			errors.rejectValue("id", "required");
//		}
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "id",  "required");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "pwd", "required");
		
		if(id==null || id.length() <  5 || id.length() > 12) {
			errors.rejectValue("id", "invalidLength", new String[]{"5","12"}, null);
		}
	}
}