cookie中上传时间为什么会报错

Question

SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String nowTime = simpleDateFormat.format(new java.util.Date());
Cookie cookie = new Cookie("time",nowTime);
cookie.setMaxAge(3600);
response.addCookie(cookie);

为什么会报错？？？
An invalid character [32] was present in the Cookie value

Answer 1

cookie已经有值了